GROWTH, REPRODUCTIVE PERFORMANCE, MEAT PRODUCTION AND SOME SOLUTIONS TO ENHANCE MEAT PRODUCTION OF PHANRANG SHEEP

MINISTRY OF EDUCATION
AND TRANING
MINISTRY OF AGRICULTURE
& RURAL DEVELOPMENT
NATIONAL INSTITUTE OFANIMAL SCIENCE

NGO THANH VINH
GROWTH, REPRODUCTIVE PERFORMANCE,
MEAT PRODUCTION AND SOME SOLUTIONS
TO ENHANCE MEAT PRODUCTION OF
PHANRANG SHEEP
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8)(+(-(9((2!(%)(/((.
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
SCIENTIFIC PUBLICATIONS

1. Ngo Thanh Vinh, Trinh Xuan Thanh, Đinh Van Binh, Pham Thi Thu
Thuy, Le Đinh Phung and Nguyen Kim Duong. 2013. Growth and
development of Phanrang sheep in Ninhthuan Province and Bavii district-
Ha Noi capital. Journal of Animal Science and Technology, %
(/((&))('&<35&=>.
2. Ngo Thanh Vinh, Trinh Xuan Thanh, Đinh Van Binh,

NguyEn Kim
DUOng.2013. Reproductive performance of Phanrang sheep in Ninhthuan
and Bavi and some factors affecting reproductive performance. Journal of
Animal Science and Technology, %  (  /    ((&
))('&<35&>5.

Introduction
1. Background and retionale
!2)!(())!((6((&*!!*(((3
!()/3()2)/!((?( !2&%!"!
-(&!,(/0(. !2)!(&!(-(2(
((()@

,>=
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,!(3()()))
.-(2(/!)()-(3*&3@@A3(&!(
!2!()/(3()5.
(( 3()&!(6( /  )!((  0(!) ()(.  1(/(
=@&*)7(3'>!()&'
  !()(  /2()  (  !  '@    B@@'5  !()&  ()(-(3
8((/+-()?&9."!(/)!((*)
))*())!(/)!(('. !2)!(()

!(C(63)63)C(&*(/(&2(D3&
)()(  ())(.  !2  )!((  )  2((&    -(  *(    !
)(3?)//((-6(."!((/(& !2)!((
)(7))!)()*(3()()C(
/)%!!&1!! -().!(%!/0(&)/
!2)!(())(E66()(!,(()
!(/)/(#3&#&%!6!& !!./&)!((
%!(-()!6(((-(2*(6()()!((
)()32(.
    6(  ) ! )!((   ) !(  )(2!(())  /  %!!
-(&  )   (  *(   !(  )3&  3  (  3(>.
#*(-(&  6((2 /  !2  )!(( )(((    6( !2! 6()(  /
(2 /  3  3()  8+(  0(  +3&==F0&
F!01!&=9.6((2((((
2*!&  (-(  (/(  /  )!((.  -(  3  2(()
!((/(2-(!()?/(2((&/(3&2*!/)!((((
(()(8+(0(+3&==F0&F!01!&=9.
"!((/(&((//(/?!(
))6((2  2    C(  6((2  ))    -(
(/(*6(-6().
(!-(!)-(*/ !2)!(()
((6)(/ !2)!((//!((-((/)!((
/2& !2)!(((()6((/3/3(-(.!(
6-(  )()&    )3    2*!&  (-(  (/(&  (
)())(!( (/  !2
)!((*)(?(.

2. Objective of study
> $-22*!&(-((/((/
!2)!((%!!-(1-)&#,.

> $-2/((/)/(2(/(/ !2
)!((.
> $-2()/()2-3/ !2)!((63
))6((2/()*! !2(*().
3. Scientific and practical values of study
3.1. Scientific values of study
())/)336(6)(2*!&
(-(  (/(&  (    /  !2  )!((  
%!!1-))6()!((8(7 !29)*(.
())/)3/!())*((-6((/((()/)()&)>
2(  )()&  (()&  ()(!()    -()()    ()(!
)).
3.2. Practical values of study
"!(  !())  -(  )  *!  -(      (  )  /
!2)!((/)//22*!&(&(D3/
!2)!((.
"!(!()))-()*!(-(!))6((2/(
)*! !2(*()*)(-(()((/
)!((%!!.
4. New contribution of the thesis
!2!!((!-(6(()()())!((&!)*)!(/)(&
*!(  2*!&  (    (    /  !2  )!((  
%!!1-/))6()!((8(7 !29)*(
*(()3)(323)(
5. Structure of the thesis
"!(!())(5()&!()&56()&/2(5B
(/((()&)(/()((!(!())(7().
Chapter 1: LITERATURE REVIEW
(!3()& !2)!((!)6(((2(7(
/2  )3)()  /  /().  !2  )!((  )    (  3(  )!((&

2(/(2)&*!(()!()(
63!2!6((((.$7)((/ !2)!(((!
!(3    *(    !  ().  "!((/(&  !2  )!((  )    -6(
2((()()&*!!((6()(-((-((.
E*!/)!(((())(632(&*(2!&3)(7.$!
//(()!((6((!)//(((63*(2!.+-(*(2!
6!)//((63()C(*(2!/(*(628EC(C&
=@F,6()(.&=@=9.
(C&8=B59)!*(!!(((()!6(*(( 6!*(2!
(-((/63/)!(((7!)(.2E(63&
8=B963*(2!6!)(/!(/)&(*6

!(-()!(()/*62)(-((63!(-((*(.
G!2/((2)3)()&(*6!(-()!((2*/)(!
(*6  )!((  *!    -(  *(2!.  )    ()&  -(  *(2! /
(*6!(-()!(()!2!(!!/!().
+-(*(2!6!!))2/(//(-(*(2!*(2&
!)      )2!(  84!    1!&  =B9.  2    +()>
(6? (()&8==9F (-((.89)!((*!!2!(-(
*(2!6!!)(()6()--.E*!/)!((
!( /) !)(  /6()/((2*) //(( 63 ?3(/(*(  
-63//((()(()/D3D3.
%))///(2(-((/(/
)!((&  ()(3  6(/(  2.  ((  /  ()    (*()
)2/3()(-(81(.&9."!(((*
6)  !()    -(  -3  /  )!((.  "!(3  (  6((
)((&))6((2/6((*!(76(()-((
/  (-(  )&  /((2  2((    D3  /  /(()
8-"!)&9.,))2!)6(((7C(2((
-()3  /  )!((.  ,))2  6()  !(  ()(  )    //)2)&

-((*(?())()/(*()6(().
Chapter 2: MATERIALS AND METHODS
"!()3())((!)!())(//(7(()8$79
$7.    ,)  /  !(  2*!  /  !2  )!((    %!!
-(1-)>#,.
$7.,)/(-((/(/ !2)!((
%!! -(   1- )>#  , )(/)
//(2(/ !2)!((.
$7.5/((/)/(2(/(/ !2)!((.
$7.'-()2/2*!(/))6()!((
8(7 !29%!!.
2.2. Methods
2.2.1. Methods used for all experiments
>"!($7.*)()!((//((2())!)6!F
5FF=!)/2(.%6(/))(//((2()
E    66  ()(!  ,((    1-&  3        /
+-()?()(!"(!23")/(((%!!*((5F
5F  @F  F      BF  F  F  @&  5  )!((&  ()(-(3.
%6(/(*())(/$7.1-%!!*((5
'=&()(-(3.-(2(&2()/)2/(*()1-
%!!*(( B>=@.>=!)/2(."()6)(-((
1-%!!*)=8/)(5F)((F!)(
5
5F/!(5@F//!)7!()B98/)('=F
)(('BF!)('F/!('5=F//!)7!()F
5'H.%6(/))(/$7.1-%!!
*((B&()(-(3.
>((2))()3*)((2)/)!((
/4(8=B9>-()3/!89.
- ((*))(3C(/!())2

!(0())8",0%9//((.
2.2.2. Methods for four experiments.
$7.    ,)  /  !(  2*!  /  !2  )!((    %!!
-(1-)>#,.
>!((*)2(-36)(!(/)!)6!
(&)(.
>%!!&)!((*)2C(>@!)(3)(((*!
.?2((/((.>?22))(3.
>1-&)!((*)2C(>5!)(3)(((*!>.
?2((!2)).?2((/(((3.
!()(/23)&)!((*)!)(2()&/(?2/2(
85()(39&?2((  8*(    3. (  6?)*((
-6(3(().G(*)2-(/((3-*((
)3)(.
!((  6!    %!!    1-  *((  (*(    -(
(3.
>()(()?(13*(2!&-(2(32&63)C(.
Exp. 2: Comparison of reproductive performance of Phanrang sheep in
Ninhthuan province and Bavi district - Hanoi Capital and some factors
affecting reproduction of Phanrang sheep.
>2((/)!((!)(7((*))!$7..
>)6(-()2(!)(7(((/((/()
81-&  %!!9&  ()&  )&  2    62  )())  
(-((/(/ !2)!((.
>  ()(()  ?(    (()  /  (  /  )!((  *)
(((.
Exp. 3: Influence of rations on fattening performance of Phanrang sheep.
"!($7.5*)( 1-E66()(!,((&I
"3&  / !    3    5. "!(  (7(()  5  (  
(7(()($7.5.$7.5..

 $7.5./((( )!((& 8*(2! ..@ ?2&(3
!) /  2(9 *(()(    ((3   2(( *! 5
(()   (). "!((  (()    !) $7.  *(( !((
'
)*!/5)//2(((8@5J((F'
((((59.
!((*)/(-3*(((!((7(()/
3)6(/((.
$7((5.*)()2()(7((5..#*(-((
)!((8*(2!B.5B.?2&(3=!)/2(9*(()(.
"!(3/$7.5.5.*)()(("6()...
"6(.+3/(7((.5.
(()
2(((8K9
@>5 ' 
%6(/)8!(9   
2(8!)9 &@ &= &=
*(2!8?29 &@ &5 &5
(839   
$7(((8*((?9 B B B
"6(.+3/(7((5.
(()
2(((8K9
@>5 ' 
%6(/)8!(9   
2(8!)9 B& B& B&5
*(2!8?29 =& =& B&=5
(839   
$7(((8*((?9 B B B
,((/((*)(///((2(())2(()&

!(  )    -(  -(  *((  ()((    6( .5.
$(!2)))((7((*)'>'3)."!(2))*)
/(3!(8>529/()372*!((/((.
1(/(/((2    )&  !(  ((!  2)) ((  *)
(/37(23/(!(()6)(8K9.
"6(.5.2(()&!()-(-(/
((/((((!2))
2((/
((/((
72(K
,!()
-(-(/
((/((
0(
,/ 5 0,48K9 .==
,))-! 5 CP (%) .
36(( @& )!8K9 .@5
))()  %8K9 @.5

1(*( & 8K9 '.
(&-) & $ (MJ/kg DM) =.
 &
Elephant grass
8K98L-9 BB.5
, 8K9 .
$8<A?29 .
%-(-(/)/(!((*)()(("6(.'.
"6(.'.%-(-(/)/(!((
(()
2(((8K9

@>5 ' 
8K9 5'.= '. .
, 8K9 .5 . .
$8<A9 =. =.@ =.=
()(()?(
((//(((/)(*)-3((3//
/((  ?(    /((  -()  .  13  *(2!  /  )  *)
(((!(6(22/(7((/)*((?(-)63
)2)(.!(/)!2/(7(()85.5..9!(()!((
/(!((*(()2!((((((8))
().  (  D3  (()  )!  ) #  -(  /    
)(( )()& ()(()('!)/(
)2!(  *((  (((  )2    #  ((    8E(39  *!  
(()/(!)(&((,>'8<9*!
(()."((())/(*))((()2G(1C(
!(   89*!  ((). /( )(2  63 ((
G(6!(((@M,/()&)(*(2!!2(/(
())2*)(((.
Exp. 4: Investigation of growth and meat production of crossbred sheep
(Dorper x Phanrang) in Ninhthuan.
%6(/

))6()!((8(7 !29%!!/)(
/!)(7((*)5FFBF''!()///((2()
6!&5&&=!)/2(&()(-(3.(*)/
A=A. 2 2 (  5  !  2(*()'
().!((*)2C(/>@!)A3/(!)().?2
((.@.?22))A3.!()(/2*(!(&
)!((*((!)(6)/()2?2//2()85
()A39.((?2A!(A3.

()(()?(*(()(7(().(
)D3*((((()(7((5.

2.2.3. Data analysis
  6(    $7.&      '  *((  ))3  3)(  )2
()-()))(()*!6)/*(.89.()
*)()2(()(()*! 6)/*(
.89.
6($7.5*(())33)()2E+8E((
+((9(()*!6)/*(.89.//(((
((()*)3)()2"?(3N)(!.
Chapter 3: RESULT AND DISCUSSION

3.1. Live weight and body size at birth to 12 month ages of Phanrang
sheep in Ninhthuan and Bavi
,!() 2!  *) !(  )      ((    !(  2*!  /
)."!((*)//(((!()2!/)!((%!!
1-5&&=!)/2(8 O.9.,!()2!/)!((
%!!*)2(!!/)!((1-.#*(-(&-(*(2!
//((2()*()//(8 P.9.,!()2!-(
*(2!/)!((/()*))!()(/)!(( !(.
3&8=B=9(!-(*(2!/)!((6(((63
)2!()2!&))63(2!*!!(!(2!/)!((.#*(-(&
!())((((2-(*(2!/)!((*)!(!()
2!81(3&==@9.
"6(5..+-(*(2!&!()2!&))63(2!*!!(!(2!
6!J!)/ !2)!((%!!1-
2( ((
1-
8(Q$9

%!!
8(Q$9
1!()
8(Q$9

6!
8!(9 5 B @B
+-(*(2!8?29 .5Q. .'Q.B .5Q.5= .
5!)
8!(9 5  @
+-(*(2!8?29 .'5Q.B5 .Q.=B .Q.5 .B
,!()2!89 B.@@

Q.@ =.@
6
Q.'= B.=BQ.=@ 0.012
,))63(2!
89
.B5Q.5@ @.BQ. .=@Q. .
G!!(!(2!89 '.

Q. 5.5
6
Q.@= 5.B=Q.@ 0.008
!)
8!(9 @  '@@
+-(*(2!8?29 @.@Q.@@ @.=Q.B= @.Q.B .55
,!()2!89 .@

Q.'5 5.@

6
Q.B .=Q. 0.000
,))63(2!
89
.=Q.5@ .'5Q. .=Q.' .
G!!(!(2!89 .==Q.' @.5Q. @.Q.@ .B=
=!) 8!(9  @ 'B
@
+-(*(2!8?29 .Q. .'@Q.' .Q.=' .'
,!()2!89 .@=

Q.5 B.5
6
Q.B @.5'Q. 0.000
,))63(2!
89
.==Q.@ 5.Q.' 5.Q.= .55
G!!(!(2!89 =.Q.B =.B5Q.5 =.Q.=B .=

!)
8!(9  5 5@=
+-(*(2!8?29 @.'Q.=5 @.@Q.5' @.55Q.'= .5
,!()2!89 @.

Q.' @5.'
6
Q.=B @.BQ.= 0.000
,))63(2!
89
.'5Q.B .Q.' .5Q.5 .55

G!!(!(2!89 .

Q. 5.'
6
Q.B .BQ.@ 0.008
Note:
a, b,
means within row with different superscripts differ significantly (P<0.05).
3.2. Live weight of Phanrang sheep at different ages
"!(()"6(5.)!*(!-(*(2!6!/ !2
)!((1-    %!!  *)  .5    .'?2&  ()(-(3."!()(
/2()*)!(2(/-(*(2!6!/ !2)!((((
63+(0(+3(.8=='9&RR0&89%!!&R!0
1!&%23(4+&8@91-.+-(*(2!/(/((
6/5!)/2(*)//((.(6)*((!(-(
!  /((  6).    )  (  *) )  6)(-(  63  +(  0(  +3
8=='9&R!01!%2"!!0!&89.
"6(5.+-(*(2!/ !2//((2()8?29
(7 ( ((
2(
6! 5!) !) =!) !)
(
1-S
8!(9 =  ' 5 
(Q$ .5@Q.5 .=Q.B @.@5Q. 5.5Q.' =.@

Q.
%!
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8!(9    = B

(Q$ .5=Q.= 5.Q.55 @.=BQ.5 5.Q.'B =.=
6
Q.@@
1!
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8!(9 @=  '5 @ 
(Q$ .5BQ. 5.Q.B= @.B5Q.@B 5.5'Q.' =.5Q.=
P 0.489 0.426 0.126 0.172 0.019
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1-S
8!(9   5'  
(Q$ .Q. .=Q.B .@Q.B .@=
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Q. '.=Q.''
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8!(9 5B   B @5
(Q$ .55Q.= .56Q. .=Q. .5'
6
Q.B@ '.=Q.=
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8!(9 ==  5'  @'
(Q$ .5'Q.@' .'Q.B .BQ. .Q.= '.@'Q.@
P 0.250 0.045 0.887 0.010 0.120
Note:
a, b,
means within columns with different superscripts different significantly (P<0.05).
)(((!-(*(2!/(6)!)/2(1-*)
*(!!/(6)%!!8=.=-).=.@?298 O.9.

#*(-(&!((*)(/(((-(*(2!//(( 6)
!)/2(."!)()*))*?)/!01!%2
"!!0!&89.
3.3. Average daily gain of Phanrang sheep in Bavi and Ninhthuan
B
32/ !2)!((/6!5!)/2(*)!(!2!()
8(B.'/((@.@'2A!(A3&-(2(9.5!)
/2(!)/2(&-(2(32/)!((23((
6!(/(()!((.32/ !2)!((/=
!)/2(*)!(*().)&-(2(32/()!((
*)!2!(!!/  /((  ().  )(((!-(2(32
8E9  /  (  )!((    1-  *)  )2/3  !2!(  !  !  
%!!.  "!(  ()  /  !)  //(((  3  6(  (    /((2
2((."!(/2*))*?)((63#2"!(%!
859F!01!%2"!!0!&89.
"6(5.5E/ !2)!((1-%!!82A!(A39
(7 ( ((
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6!>5
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8!(9
 ' 5 

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@.5Q. .5'Q.@ =.Q. B.B

Q.B
%!!
8!(9
  = B
(Q$
B.BBQ.' 5.BQ.= =.@Q.BB @.'
6
Q.B'
1!
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. .B .=B@ 0.017
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1-
8!(9
 5'  
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%!!
8!(9
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1!

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8!(9
 5'  @'
(Q$
@.@'Q.@ .Q.' '.'@Q.' @.BQ.=
.'' .B . .@B
Note:
a, b,
Means within same columns with different superscripts different significantly
(P<0.05).
E/)!((/6!)(7()*()/*(!((/2*!/
)!((.  E  ()(  / 6!  J  5  !  /  2()&  !(  ((
/(*.E/()!((/6!!)/2()*)*3)
!2!(!!//(()!((.
  /2)  *((  ))(  *!  /2)  /  )(-(  *?)  (  
)!((86G!&=B=F$>(.&5F1(!1(
3(#(&F+ /%)!!-)!&9.
"6(5.56(-(2*!(/ !2)!((1-
%!!8K9
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=
(( 6!>5
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5>
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1-S
8!(9  ' 5 
(Q$ 5'.'@Q. @.@Q. .Q. @.=

Q.'
%!!
8!(9   = B
(Q$ 5'.'Q. @.BQ.5 .'Q.= .B
6
Q.
1!
()
8!(9  '5 @ 
(Q$ 5'.'Q. @.@@Q.= .'Q. .@@Q.B
0.811 0.703 0.774 0.025
(
(
1-S
8!(9  5'  
(Q$ 55.=Q.' B.=Q.B .5Q. .@5Q.
%!!
8!(9   B @5
(Q$ 55.B=Q.'= @.Q.5 .@Q. .Q.5
1!
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0.905 0.072 0.223 0.654
Note:
a, b,

Means within same columns with different superscripts different significantly
(P<0.05).
"!(()6(5.56)!*(!?( E& (-( 2*!(/
!2)!((/6!)(7()1-%!!()(/6!
5!)&!((()( /(*.(-(2*!(/ !2
()!((*)!2!(!!//(()!((.
())/-(*(2!(-(2*!(/ !2()!((
*(()!()(/)!((/())!
)$!& !()&&)8 !&=B=F-(3&
=B=F"66(.&F1(!1(3(#(&9.
3.4. Index of body structure of Phanrang sheep
"!(()6(5.')!*(!52(!)&(7()/63
)(/ !2)!((*()*(()2/3 8 O.9.
1+&1&1G+/()!((%!!&=!)/2(*((
!2!(!!()(/()!((1- O&9.)(((!2C2
)3)()36(//!()(//((()(7()/63)(.
=>2(!)&!((*)//(((1//(()!((1-S
%!!8 O&9.
#*(-(&  1+    1G  /  )!((    1-    %!!  *((  
)2/3//((.
"6(5.'(7/63)(/ !2)!((1-%!!
2(
8!9
(7 (( 1-S %!! 1!()
Male
5 8!(9   
1+ (Q$ .@

Q.5 5.'
6

Q.' .'Q. 0.001

1 '.'

Q.5' .=5
6
Q.' .5Q.= 0.000
1G .=5

Q.55 .'=
6
Q. @.BQ.5 0.000

8!(9 @  '5
1+
(Q$
.=

Q.' '.5
6
Q.'5 5.'Q.5 0.006
1 '.=Q.5 .BQ.' .5@Q. .@
1G @.'

Q.5' .5
6
Q.'B B.=5.5 0.000
=
8!(9 = 5 @
1+

(Q$
@.@

Q.' B.=
6
Q.5' @.@BQ. 0.019
1 .5Q.' .5@Q.5 .5Q.@ .=B
1G .@

Q.' '.5
6
Q.5B 5.'BQ.B 0.023

8!(9 @ 5B 
1+
(Q$
B.=

Q.5 .=
6
Q.' .=Q.5' 0.000
1 @.'

Q.'@ '.B@
6
Q.5 .Q.B 0.000
1G .@=Q.= @.@Q.5@ @.Q.5 .'B
Female
5
8!(9   

1+
(Q$
.'

Q.' '.B
6
Q.'= '.B@Q.5 0.032
1 .B@Q.5B .=@Q.'B .5'Q.5 .@
1G .5Q.' .Q. .'Q.55 .'

8!(9 5'  5'
1+
(Q$
'.BQ.5= '.BQ.'@ '.5=Q.5 .5
1 .''

Q.5B .
6
Q.5 .BQ.5 0.032
1G .@Q.' .Q.= .'Q.5 .5'
=
% 8!(9  B 
1+
(Q$
.

Q.5 .@=
6
Q.' .@=Q.5 0.005
1 .=Q.' .@5Q. .BQ.5 .5'

1G .Q.'' .BQ. .5Q.5@ .@'

8!(9 = @B @'
1+
(Q$
@.

Q.'' B.@
6
Q.'B @.@=Q.55 0.012
1 .@Q.' .Q. .''Q.5' .'5
1G 5.Q.' '.Q. 5.BQ.5B .'
Note: BLI: Body length index, BRI: body round index,BWI:body weigh index,
a, b,
means
within rows with different superscripts differ significantly (P<0.05).
3.5. Reproductive performance of Phanrang sheep in Bavi and
Ninhthuan
())    "6(  5.  (  ! !((  *((  )(  //((()  
(-((/(/ !2)!((*().)())&
/)  2 /  !2  (*()  %!! *(( ((  !  !()( /
!2(*()1-.)/!)())839
/  !2  (*()    1-  *)  )!(  !  !  /  !2  (*()  
%!!8 O.9.
+-(*(2!/)2&6(/*((A(*(2(/
(*()%!!*((*(!!()(/(*()1-.())*((
)*?)((63R!01!%2"!!0!&89F
4-( -  & 89F 6(2C  (  .  89    
)!((((!G()J%!. ((((.8=B@9/!
(23(()C(/(*()*((/((63)(-(/).


"!(  //((()    )()&  /((2  (2(&  !(  2((    3
(2!%!!1-*((/)(72!(//((()
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6
Q'.' '.'

Q'.5 5.Q5.= 0.003
2(//)2839 @.B
6
Q.= 5.=

Q.' B@.Q'.55 0.000
E()(2!(839 '=.

Q. 'B.5

6
Q.' 'B.=Q. 0.000
2(/)62839 '.5QB.BB '.BQB.' '=.'Q.' .=
)())839 .
6
Q.@B 5.

Q.@' @.=Q.@= 0.000
+62(-)839 '.BQ.5 B.Q.' .BQ. .B
+-(*(2!/)28?29 B.@
6
Q. .

Q. =.'Q. 0.000
+-(*(2!//)628?29 '.5Q.5 '.@Q.= '.Q. .55
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8?2F=B!(9
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6
Q.= .
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Q.@ .Q.= 0.003
G(2((2(8K9 B@.

6
Q.'' =.
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!()9
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='!()9
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+(A3( .'

Q. .'
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Note:
a, b,
means with same row with different superscripts different significantly (P<0.05).
3.5.1. Some factors affecting reproductive performance of Phanrang
sheep in Ninhthuan and Bavi.
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(-((/(/(*()%!!1-.*)/
! )    !(  839    62  (  *((  )2/3
/(()63))(.
"6(5.$//(/(-((/(/(*()%!!
1-
(( %!!T 1-S 1!()

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6
Q.' '.

Q.= =.Q.5 0.000
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%/(68!(9 .
6
Q. .
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6
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Note:
a, b,
means with same row with different superscripts different significantly (P<0.05).
3.5.2. The effect of mating and lambing seasons on reproductive

performance of Phanrang sheep
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(/(/(*()1-
((
2)() +62)()
G(
89
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8'=9
8(Q$9

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89
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6
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+-(*(2!*(2
8?29
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+62(-)839 @.Q.5 @.Q. .5 .@± .' @.Q.' .B
+(A3( .'Q. .'Q. .'5 .'± . .'Q. .@
Note:
a, b,
means with same column with different superscripts different significantly
(P<0.05).

"!(  ()    6(  5.  )!*(  !  62  )()  !  3  (//()  
6(/6)8 O&9 )())8391-8 O&9.
"6(5.6$//(/262)())(-(
(/(/(*()%!
 (( 2)() +62)()
3)()
8'=9

8(Q$9
3)()
8'=9
8(Q$9
3)()
8'B9
88(Q$9
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8'9
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G(2(8K9 B'.=Q5.B= B'.Q5.' .' B@.Q.5 B.=Q'.5 .55'
-(*(2!6!
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+-(*(2!
*(28?29 .@Q.' .Q. .@'@ .Q.= .Q.@ .@5
)
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+62(-)
839 .'Q.' '.=Q. .@5 '.5Q.5' .Q.55 .@B
+(A3( .'Q. .'Q. . .'Q. .'Q. .=
"!(  ()  )!*( ! 2   62 )()) !   )2/
(//(/(-((/(/(*()%!.
3.5.3. Effect of litter on reproductive performance of Phanrang ewe
"6(5.@$//(/((-((/(/ !2(*(

1-
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)&()(3).
G!(  (  )C(  ()(  /  !(  /)  (    !(  !)  (&  )

())83962(-(()(/!(/)(
!(//!)7!(.((!(A3(()(/!(
/))((!(*))6(.E((3&(-((/(
/(*(*)6((/!()(()6(/!(/!(.
3.6. Influence of rations on fattening performance of Phanrang sheep
from 6 to 9 months of age.
)6()((/"6(5.B&E//(2)!((((5/(
!(*!2!2(((/*)!(!2!()
8B2A39&/*(63E/)!((((&/(!(
*!2!2(((/' 8  2A39.  E  /
)!((((&/(!(*!2!2(((
/@5*)!(*()82A398 O&9.)(((!!()(
2(& E  //(2)!((  *))2/3  //(( 632!2(  
(()  /  ).  G!(  ((2(/(((()(
/5K&E(()(23.

)    6(  )((  /  "6(  5.=&  /((  ?(  /  /(2  )!((  )  ?2
A!(A342A?2-(*(2!&()()2/38 O
.9*!(2!2((()/)()(/@>5
J'JK."!)(/((?(*((3*!
()(  (  /  E.  )    ()&  ,  8/((  -()  9  /
/(2)!(((()()2/38 O.9*!((()/
)()(/@>5J'JK.

"6(5.B.$//(/)E//(2)!((
(( " " "5 $
%8!(9   
$7(((2!8*((?9 B B B
*(2!8?29 .@ .5 .5 . .5
G(2!/!(/)'*((?)8?29 B.=@

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.5@
6
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B.=
6
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6
.5' .
G(2!/!()('*((?)8?29 .5
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'.@
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"6(5.=$//(/)/((?(,//(2)!((
(( " " "5 $
((?(842A!(A39 .B5

.BB
6
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6
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*(2!9
'.'
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6
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.5 O.
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())  /"6(  5. )!*(  ! 2!2(   (( )  /
)  ! )((//()    ())2 ((2(&  (  ( ((2(&
!(&)? *&6 ((2(.#*(-(&!()((//()(
)2/3  8 O.9  *!(  2!2(    ((  )  /  )
()(/J'JK."!((*)//((())
!())  /  /(2  )!((  6(*((  ((      &  *!((
2!2(  (( )/) *((  @ J5  J  'K&
()(-(3.
"6(5..,))!())//(2)!(()//((63)
(( " " "5
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6
Q.5
Note: a, b means within row with different superscripts are significantly different
3.7. Influence of rations on fattening performance of Phanrang sheep
from 9 to 12 months of age
"6(5.$//(/)E//(2)!((
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%8!(9   
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())2(!3K
5.B@ 5.@ 5.' %
()()
#
5
&'

&
6
&5
6
X
#
'
.BB .BB . %
"2!())8%(*9 5.@ '.' '@. %
()(-(!3K .5 .5 .5' %
())2(!3K =.B B.' @.= %
+X862!())9 ''.=B '. '.5B %
X8(())9 @.' @.' @.=' %
1X83(*())9 @.


B.@
6
@.'

X
Note : * : P<0,05 ; NS : P≥0,05
3.8. Growth and meat production of F1 crossbred sheep (Dorper x
Phanrang) in Ninhthuan.
)()((6(5.&-(*(2!/(/(( ))6(
)!((8(7 !29%!!//((2()*))2/3
//(()8 O&9.
  *)  )  (-((  !   ))6(  )!((  8(  7  !29  
//((2()*))2/3!(-(! !2)!((8)(("6(
5.9(!(()).
"6(5.+-(*(2!/))6()!((8(7 !29//((
2()
(7 (()
2(
6! 5!) !) =!) !)
(
8!(9
 ' ' @ 
(Q$
5.5

Q.' .BB

Q.5 '.=


Q.@ 5.=5

Q.5= 5'.'B

Q.'5
((
8!(9
=  '' 5@ 
(Q$
.B5
6
Q.5 '.=B
6
Q.
.'
6
Q.=
.=
6
Q.= 5.B
6
Q.55
1!
)(7()
8!(9 5  B ' '
(Q$ 5.Q.5 .=Q.=
5.Q.@
B.Q.5@ 5.BBQ.'
P 0.000 0.000 0.000 0.000 0.000
=

Note: a,b means within column with different superscripts are significant different
(P<0,05)
3.9. Average daily gain of F1 crossbred sheep (Dorper x Phanrang) in
Ninhthuan
"6(5.E/))6()!((8(7 !29
82A!(A39
(7 ((
2(
6!>5!) 5>!) >=!) =>!)
(
8!(9 ' ' @ 
(Q$ .

Q.@ B'.=

Q'.' @.'Q.@ '.B5Q.
((
8!(9  '' 5@ B
(Q$ 5.
6
Q.@ @.
6
Q'.5 '.B=Q'.' 'B.Q'.@
1!
)(7()
8!(9  B ' '
(Q$ 5.
6
Q.@ @.
6

Q'.5 '.B=Q'.' 'B.Q'.@
P 0.000 0.029 0.774 0.326
Note:
a, b,
Means in same column with different superscripts were significantly different
(P<0. 05)
)6()((/"6(5.&E/))6()!((8(7
!29/6!5!)/2(*)!(!2!().5!)/
2(      !)  /  2(&  -(2(  3  2  /    ))6(  )!((
23((6!(/(()!((.E/))6(
)!((/=!)/2(*)!(*().)&E/(
))6()!((*)!2!(!!//((().
(!(())&E/))6()!((8(7 !2986!
)(7()9//((2*2!)()*)!2!(!E/ !2)!((
86!)(7()9%!!1-8)(("6(5.5.9.
E/)!((/6!)(7()*()/*(!((/2*!/
)!((.  E  ()(  / 6!  J  5  !  /  2()&  !(  ((
/(*.E/()!((/6!!)/2()*)*3)
!2!(!!//(()!((.
)()(("6(5.6&!22(/(-(2*!(/
))6()!((8(7 !29 !2*))!((
/E8)((6(5.9.)/!(-(2*!(/
))6(  )!(( 8(  7 !29  86! )(7()9    //((  2*2
!)()*)!2!(!/ !2)!((86!)(7()9%!!
1-8)(("6(5.5.69.
"6(5.6(-(2*!(/))6()!((8(7
!298K9
(7 ((
2(
6!>5

!)
5>!) >=!) =>!)

(
8!(9 ' ' @ 
(Q$ B.55Q.' 5.=Q.'B =.5Q.' .'Q.
((
8!(9  '' 5@ 
(Q$ B.BQ.5= =.5BQ.' B.'Q.5 '.Q.5
1!
)(7()
8!(9  B ' '
(Q$ B.@Q.B =.BQ.5 B.BQ. .BQ.
P 0.400 0.664 0.648 0.089
3.10 Reproductive performance of crossbred sheep F1 (Dorper x Phan
rang) in Ninhthuan
())    "6(  5.@  (  !  !((  *((  )(  )2/
//((()(-((/(/))6(8(7 !
29 !2(*()8 O.9.G!(-(*(2!6!8?29&6(
/*((8!(9& -(*(2!*(28?29/))6(8(7
!29(*()*((-(*((!2!(!!()(/ !2
(*()F62(-)839&2(/)())839&2()/)())&
/)2/)62/))6(8(7 !29(*(
*((-(*(()!2!(!!()(/ !2(*().
"6(5.@(-((/(/))6(8(7 !
29 !2(*(
(( 89
87 9  !2
8(Q$9 89 8(Q$9
%/68!(9 5 &@Q&'  &Q&5

+-(*(2!6!8?29 5 5&

Q&' = &5
6
Q&
%/*((8!(9 = &=

Q&' =B &'
6
Q&=
G(2(8K9 = B5&Q5&5' = B5&BQ&''
+-(*(2!*(28?29 = &B

Q& = &
6
Q&
+62(-)839 @ B&B

Q&@ 'B '&B
6
Q&5
2(/)())839 @ '&B

Q&@ 'B &
6
Q&@B
+(A3( @ &'Q&' 'B &'Q&
2(/)()) @ 5B&B

Q5& 'B &

6
Q'&'
2(/)2 @ B&

Q&@B 'B @&B
6
Q&=
2(/)62 @ 'B&B

Q@&5B 'B '&5
6
QB&BB
Note:
a, b,
Means in same row with different superscripts were significantly different (P<0.
05)

)(((!))6((2/ ()*! !2(*()!
)-((//()-(*(2!6!&6( /*((& -(*(2!
*(2  /    ))6(  8(  7  !29  (*().  #*(-(&
))6((2/()*! !2(*()!(2-((//()
62(-)839&2(/)())839&2()/)())&
/)2/)62/))6(8(7 !29(*().
%(//(/))6((2*(2((A3(*)/.

3.11. Effect of litter on reproductive performance of F1 crossbred
(Dorper x Phanrang) ewes in Ninhthuan
"6(5.B$//(/((-((/(/))6()!((
8(7 !29(*()
+(


((
+6A
(
%/
*((
8!(9
(/
*(2
8K9
G(2!

6!
8?29
G(2!

*(2
8?29
)

())
839
+62
(-)
839
+(A3(

8B9
( &= . B.@ 5. '. B.55 @'.'


.5'
6
$ &B . .'@' .@ .5' '.@ '.@5 .'

8B9
( &55 .' B.5 5.= . . @.B
6
.5
6
$ &B5 . .'@ .@5 .5 '.@@ '.@5 .5
5
8B9
( &' . B'.' 5.@ .5 ==. .
6
.'

$ &B .5 .'@ .@ .@@ .@ .= .55
'
8=9
( &5 . B.B' 5.5 .@ . .@
6
.'
6
$ & .' @.B .B .' 5.' 5.5B5 .@
 &B &B &= &=@ &5@ &@ &5= &5
Note:
a, b,
Mean in same column with different superscripts are significantly different (P<0,
05)
)6()((/"6(5.B.(!(//(()C(&6(/

*((&*(2(&*(2!6!&*(2!*(2&)
())8 O.9.+(&!*(-(&!)2/(//(8 O.962
(-))6(/(A3(. +62(-  )(((6(
)!(//)(!)(.
3.12. Meat production of F1 crossbred sheep (Dorper x Phanrang) in
Ninhthuan.
())  /  "6(  5.=  (  !  !((  *((  )(  )2/
//((()8 O.9))!())/ !2)!(( 
))6()!((8(7 !29%!!.
,))6((2/()*! !2(*()!)-((//()
)2!(*(2!&())2((2(&((&!(&/&)?*
((2()8 O.9.
"6(5.=.,))!())/))6(()!((8(7
!29 !2)!((
((
,))6(()!((
89
8(Q$9
!2)!((
89
8(Q$9

2!(*(2!8?29 5.'@
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6
Q. 0.000
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
Q. '.@

6
Q. 0.002
+((8K9 5'.'@
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Q.5 5.55
6
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#(8K9 .B'
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