CHỌN LỌC ĐÀN HẠT NHÂN GÀ HẮC PHONG

VIEN CHAN NUOI — Top chi Khoa hoc Ciing nghe Chan nuoi — SO 85. Thang 3/2018

CHQN LQC DAN HAT NHAN GA HAC PHONG
Nguyin Quyit Tiding', Vein Thi Chib2,
Phpm Ging Thaw Nguyin Viet Nguyen3, Derang Trer
va Dinh Tr9ng2, Mai Thu Herang2, Nguyin Van Duy2, Le Thi Binh' va Plipm Hai Ninh'
1 Vien

Chan Nal; 2Trung tam Nghien cuu \fit D i Xuyen; 3So• Nong nghiep va PTNT Thanh Hoi;
4Trung tam Nghien ctim va MIR trien chart nuoi Mien Trung

Tac gia lien 4: Pham Cong Thieu; Dien thoai: 0912244149; Email:

ABSTRACT
Selection of nuclear herd of Hac Phong chickens
The objective of this study was selection of Hac Phong chicken. The experiment was done in the Dai Xuyen
Duck Research Centre through 3 generations. The results showed that the Hac Phong chickens have black
feathers, black meat, black bones, black viscera (organs) and 6 toes, of which the last toe was feathered. The
female chicken had a pea comb and a feather on the top of their head, The male chicken had both the pea and
single comb, black wattle, with tail feather that were a mixture of dark blue and black, together with a large front
plumage coloured dark black.
The body weight of male chicken at 8 weeks of age reached from 776.69 g to779.66 g; The females attained
between 674.87 and 679.25 g. At 19 weeks of age, the males reached between 1486.66g and 1511.66g, while the
females attained between 1218.25g and 1231.50 g. The egg yields were from 150.19 to 152.65 eggs at 72 weeks
of age, equivalent to a laying rate of 41.26-41.94%. The feed consumption was 2.39 to 2.46 kg/ 10 eggs. The egg
weight were between 44.29 and 44.97g. The hatching rate of fertile eggs was from 88.22 to 90.02%. The
hatching rate of type 1 chicken /incubated eggs was between 77.13 and 78.60%.
Key words: Hac Phong chicken. chicken selection, chicken productivity

DAT VAN BE
Ngay nay ding vori vi6c phat trien chan nuoi cac gi6ng gia cam c6 nang suat cao nhu ga sieu

thit, sieu trung, vi6c nghien dru chon 19c cac gi6ng ga ban dia quy hi6m dac san cling da dugc
trien khai va nuoi thir nghi6m. Chan nuoi cac giong ga xuang den, thit den la mat trong nhang
htrang di nhu vay. Ga Hac Phong la gi6ng ga ban dia. Vi6t Nam thuOc nhom ga co da den, thit
den va xuang den, chat luang thit thorn ngon, thit it mo. Cling nhu ga H'mong, ga Ac Thai
Hoa, ga Hac Phong &lac ngtrai tieu diing biet den nhu mot giong ga thuoc de chlra tri mot so
b6nh trong y hoc va boi clueing dire khoe cho nguai gia, phij nu sau khi sinh de; Chinh vi vay
ma nhu cau loaf thit ga nay ngay tang tang va do vay nhu cau chan nuoi ga. Hac Phong tang
dugc ma. Ong.
Vin Chan nuoi duce BO Khoa hoc va Cong ngh6 phe duy6t thuc hi6n nhi6rn vu "Khai that va
phat trien nguon gen ga Hac Phong va ga To". Thuc hi6n tit nam 2014 den thang 6/2018 nham
chon 19c nhan thuan tao dan hat nhan ga Hac Phong de san xuat con gi6ng cung cap cho nhu
cau san xuat chan nuoi la mot huang di dung va can thiet.
Muc tieu: Ch9n 19c dtiac dan hat nhan ga Hac Phong quy mo 200 mai c6 d4c di6m ngoai hinh
dac trung cua giong; rang suat trung 148-153 qua/mai/nam; tST 16 phoi 90-92% va tif
naltrimg co phoi 84-88%.
VAT LIEU VA PHVONG PHAP NGHIEN CeU
V4t lieu, dia diem va thiri gian nghien cu•u
Dan ga 1-15.c Phong the 116 xuat phat c6 ngu6n goc tit Trung tam Chuyen giao TBKT Wing lam
nghi6p Quang Ninh va cac the 116 1 va 2 tai Trung tam Nghien cfru Vit Dai Xuyen - Vin
Chan nuoi, tit thang 10/ 2014 den thang 9/2017.

37


PHAM CONG THIEU. Cho,: loc clan hot nhtin ga litic Phong

NOi dung nghien eau
Xac dinh mgt s6 dL diem ngoai hinh cita ga HL Phong.
Danh gia kha nang san xuat cua ga HL Phong qua cac the he chqn lqc (sinh throng, sinh
Phtrung phap nghien cult

Nhan thuan ma rOrsig quan ,the theo phuang phap ngau giao theo nh6m va ghep luan chuyen
tong de giam sg (tong huyet (sa do chqn lqc nhu sau):
Ap thay the dan, chqn lqc ga
01 ngay tuoi

►

Dan hat nhan
38 tuan tan

Chqn a hau bi
8 tuan tuoi
Chqn lqc ga dung de
19 tuan Wed

Ap dung chqn lqc d6ng boat dm Nguyen Van Thien va Tran Dinh Mien (1995), nh6m tinh
trang ducic chqn lqc chinh la sinh true:mg (kh8i lining ca the).
Ve khoi luang Ca the: (5 thin diem 56 ngay tuoi (8 tuan tuoi) ga duac chqn lqc theo kh6i
lacing ca the khoang >20% a ga trong va 50-60% a ga mai, duqc chqn lqc len giai doan doNu bi. th6i diem 133 ngay tuoi (19 tuan tad) ga dugc chqn tiep theo ve khoi lacing co the:
Ga trong c6 kh6i lacing co the trong pham vi (Mean ±
Ga mai co khoi lacing ca the trong pham vi (Mean ± 2a)
Ve mau da: Loai b6 nhiing ga c6 da tang, chan trang, chan lchong 6 non (neu co).
DL diem ngoai hinh: Sir dung phuong phap quan sat true quan nham tao duac dan ga mang
dL diem ngoai hinh CI4C trong cua giong. Do v'dy viec chqn lqc dira vao d4c diem ngoai hinh
se la quan trqng. nhat. Chqn lqc ve mau sac long, kieu mao, mau da, chan, mo... cac th6i
diem 01 ngay tuoi, 8 tuan tuoi va 19 tuan tan qua cac the he xuat phat, the he 1 va 2.
Chi cIP chain sac, nuoi dwang

Ga ducyc nuoi trong dieu kien chung trai thong thoang to nhien, nuoi nen dem 16t trau. Che
dO cham s6c, nuoi dieing va ve sinh thu y phong benh theo quy trinh cua Trung tam Nghien

ciru Vit Dai Xuyen (the hien tai Bang 1).
Bang 1. Gia tri dinh throng va quy trinh chain s6c
Chi tieu
ME (Kcal/kg thirc an)
Protein the, %
Canxi (%)
Photphos tong so (%)
Kat dO nuoi (con/m2)
TS/ le trong/mai (%)
Che dO an
Che dO chieu sang

38

Giai doan (tuan tuoi)
0-4
5-8
9-19
2950
2850
2750
21,0
18,0
14,5
0,95
1,45
1,43
0,70
0,74
0,63

15-20
10-15
6-10
Nuoi chung
Nu8i chung
Tach rieng
Ty do
Tu do
Han the
Den stroi + anh Den wad + anh Anh sang tu.
sang tir nhien sang to nhien
nhien

20-72
2700
17,0
3,4
0,70
3-5
1/7-1/8
Theo tS, le de
16 gieringay


VIN CHAN NUN — Top chi Khoa hQc Cong nghe Chan nu6i — SO 85. Thing 3/2018

Cdc chi lieu theo doi
Hac ditm ngoai hinh (mau sic long, da, mao, tich, chin, m6, kich thu6c m6t s6 chieu do ca
the).
TS, le nuoi sting, khoi ltrang ca the, tuii de, tS, le de, nang suit trirng, khao sat m6t s6 chi tieu

chit luang trtIng, tieu ton thirc an/10 qua trong; tSr le phoi va ket qua ip na, v.v...
Phirong phap xir 15, so ligu
S6 lieu thu ducyc xir 15, theo phuang pita') th6ng ke sinh h9c teen may vi tinh bang phin mem
Minitab 16 va chucmg trinh Microsoft Excel 2007 va SAS (1993) tai Trung tam Nghien ciru
Vit Hai Xuyen.
KET QUA VA THAO LUAN
DOc diem ngoai hinh va kich thterc mOt so chieu do co the
flat clijm ngogi hinh cua ga 1-1Oc Phong dein hgt nhan
Qua quan sat 3 the he dan hat nhan ga Hic Phong co ngoai hinh ding nhit, dac diem ngoai
hinh ga Hac Phong kw 01 ngay tuoi, 08 tuan tad va 19 tuan tuoi the hien tai Bang 2.
Bang 2. Dac diem ngoai hinh ga Hie Phong qua 3 the he
Giai loan
01 ngay tu6i
(n=4500 con)

08 tuan tu6i
(n=4339 con)

19 tuan tu6i
(n=1564 con)

Tring

Mai

Ga mau long den ding nhit, than hinh nho, clang nhanh nhen, chin va mo
den xam, chin sau ng6n va c6 1 hang long MQC a ngem ngoai cimg (khac
hin vii ga Ac, ga Thai Hoa long mau tang nga, chin 5 ngon (ngu trio)
Co long xuac, mau den tuyen, tam v6c
lin him ga mai, ding nhanh nhcn, da

den, thit den, xuang den

Co long xuac mau den tuyen,
tam v6c nhe, ding di nhanh
!then, da den, thit den, xtrcmg
den.

Ga c6 hai kieu mao (mao co. va mao
nu), mao ca 43,39%, mao nu 56,61%,
mao, tich c6 mau den tim sam, long
duoi xanh den, yem phat trien c6 mau
den sAm

Mao nu, clau co 1 chain long
mau den 6 dinh &Au (gi6ng ga
Ac, ga Thai Hoa)

Qua 3 the he theo dai, dan ga Hic Phong c6 dac diem ngoai hinh 6n dinh, khong c6 phan ly
a tat ca cac giai dog'. Dieu nay khang dinh quan the dan ga Hac Phong c6 ngoai hinh dung
that eat c6 lai the trong chin 19c nhan thuan.
Kich thwerc mat so chiL do ca the ga Hcic Phong dan hgt nhan
Khao sat kich thuac m6t s6 chieu do ca the ga Hic Phong tai thOi diem 19 tuan tu6i qua 3 the
he. Ket qua thu dtrac the hien tai Bang 3.

39


PRAM CONG THIEU. Chon IQc clan hit nhdn gel Hdc Phong

Bang 3. Kich thu6c met s6 chieu do ca the (cm) cua dan ga hat than

Hac Phong lite 19 tuan tuoi (n=30)
Chi tieu
Dai than
DAi luan
V6ng
ngvc
Dai long
canh
Dai
dui
Cao chan
Yong 6ng
chan

Tinh biet
Mai
Trong
Mai
Tr6ng
Mai
Tr6ng
Mai
Treng
Mai
Thing
Mai
Tiling
Mai
Tr6ng

The he XP
Mean ± SD CV (%)
13,11 ± 0,44 3,37
17,01 ± 0,84
4,94
8,67 ± 0,51
5,88
12,64± 0,42
3,35
26,17± 0,42
2,95
28,04 ± 1,04 3,71
14,26 ± 0,52
3,65
18,01 ± 0,42
2,33
11,23 ± 0,41
3,65
14,17± 0,95 6,70
8,08 ± 0,54
6,68
11,11 ± 0,59
5,31
3,49± 0,19
5,44
4,61 ± 0,17
3,69

The he 1
Mean ± SD CV (%)

13,41 ± 1,21
9,03
17,31 ± 1,11
6,41
8,97 ± 0,83
9,25
12,94± 0,75
5,79
26,47± 1,42
5,36
28,34 ± 1,15
4,06
14,56± 0,95
6,52
18,311. 0,90
4,92
11,51 ± 0,68
5,91
14,47± 0,91
6,29
8,37 ± 0,40
4,78
11,41 ± 0,45
3,94
3,69 0,20
5,42
4,79 ± 0,25
5,22

The he 2

Mean ± SD CV (%)
13,27 ± 0,53 3,99
17,17± 0,62 3,61
8,83 ± 0,47
5,32
12,80± 0,61 4,77
26,33 1,18 4,48
28,20 ± 1,16 4,11
14,33 ± 0,70 4,88
18,17± 0,74 4,07
11,39± 0,42 3,69
14,33 ± 0,57 3,98
8,24 ± 0,95 11,53
11,27± 0,72 6,39
3,55 ± 0,42 11,83
4,72 ± 0,19
4,03

Cac s6 lieu tai Bang 3 cho thay giira cac the he kich,thtrac met s6 chieu do ca the ga Hac
Phong hat nhan là Wang duang nhau. Tuy vay ga Wing c6 cac so do luon Ian hcm ga mai
cang th6i diem. Ket qua nay dm chung t6i ding phit hgp v6i ket qua nghien cfru cua
Pham Cong Thieu va cs. (2010), tren 3 gi6ng ga HW,, RiD va PGi;
Thi Kim Cue va
cs. (2015),, tren dan ga M6ng, cac tac gia ,nay deu khang dinh qua cac the he kich thlr6c
met so chieu do ca the ga tai cang th6i diem IA khong c6 sv sai khac, giita ga tr6ng va ga
mai thi c6 su sai khac.
Tj, 1g nuoi sing va tieu tin thirc an
Theo dO'i qua 3 the he dan hat than ga H&c Phong giai doan gA con (01 ngay tu6i -8 tuan
ga de-hau bi (9-19 tuan tu6i) thu dugc ket qua the hien tai Bang 4.
Bang 4. TS, le nuoi s6ng (%) va tieu ton thirc an (g/con) qua cac giai doan

Tuan tu6i
01 ngay tu6i - 8
9 - 19 (tr6ng)
9 - 19 (mai)

The he
xuat phat
93,40
95,33
94,25

The he 1

The 14 2

Trung binh

92,27
95,33
94,25

94,00
94,67
93,75

93,22
95,11
94,08

Tieu ton thirc

an/con/giai doan
1.642
5.870
5.389

Giai doan (01 ngay tuoi -8 than tu6i) qua 3 the he chgn 1Qc ga Hac Phong c6 tST le nuoi s6ng
dat kha cao (92,27-94,00%); gai doan (9-19 tuan tu6i) ga tong c6 tSr le nuoi song 94,6795,33%; ga mai 93,75-94,25%. Lugng thirc an tieu ton giai, doan (01 ngaytu6i -8 tuan tuoi) la
1642 g/con, trung binh ca giai doan tir (01 ngay tuoi -19 tan tuoi) ga tong 7512g/con; ga mai
40


VleN CHAN NUN - Top chi Khoa hoc Cong nghe Chan nuoi -SO 85. Mang 3/2018

7031 g/con. Ket qua ve tY 10 nuoi song cao han ga M6ng giai doan (0-8 tan tu6i) 87,7189,38% twang ducmg vori giai doan (9-19 tuan tu6i) ga tong Mon dat 93,85-96,15%; ga mai
dat 91,91-95,74% (Ngo Thi Kim Ciic va cs., 2015). Ga H'mong qua 4 the 110 chQn 19c co tS, 10
nuoi song giai doan ga con-do 114u bi 94,31-96,14% (Pham Cong Thieu va cs., 2010) thi ket
qua dm chimg toi la Wang ducmg.
ICH tang sinh truirng qua cac the 14
Kh6i lugng ca the dan hat nhAn ga HAc Phong 8 va 19 tan tuoi duqc trinh bay b Bang 5.
Bang 5. Ket qua ch9n 19c lac 8 va 19 tuAn tuoi
The 110
Tan wed
Dan truotc ch9n 19c
(n) con
Khoci lugng (g/con)
CV (%)
Dan ch9n 19c (n)
con
Kh6i lugng (g/con)
CV (%)

Ap luc ch9n 19c (%)
Ly sai ch9n 19c (g)
Cubing TO ch9n 19c
Dan ch9n 19c (n)
con
Kh6i lugng (g/con)
CV (%)

The 110 1
XuAt phat
Mai
Triing
Mai
Tr6ng
8 tan tuoi

The 110 2
Mai
Trong

686

715

665

719

690

720

712,31
6,15

618,53
14,08

723,07
7,19

623,06
13,92

728,76
7,17

626,25
12,30

150

400

150

400

150

400

682,87b
5,36
55,63
59,81
1,07

779,66a
6,30
21,74
50,90
1,21

679,25b
7,62
55,56
53,00
1,23

776,67a
5,76
21,87
64,36
1,43

777,67a
674,87b
7,83
10,15

22,56
55,94
54,60
56,34
0,89
0,82
19 ta'n tuoi

30

200

30

200

30

200

1486,66a
4,99

1220,25b
7,50

1501,67a
3,65

1218,25b

3,88

1511,66a
3,65

1231,50b
4,11

Theo hang ngang nhang so trung binh mang cac chu cal khcic nhau th1 s sai khcic giira cluing coy nghia thing
ke (P<0,05)

Tai th6i diem 8 tan tu6i (56 ngay) ch9n 19c dinh huang ve kh6i lugng ca the. Ket qua dan ga
qua cac the 110 &Ric ch9n 19c vai tSi 10 (21,74-22,56%) ga tr6ng va (55,56-55,94%) b ga mai.
Dan ch9n 19c litc 8 tuan tuoi co Ich6i Wong ga trOng (776,67-779,66 g/con); ga mai (674,87682,87 g/con). th6i diem 19 tan tuoi ga triing dan ch9n 19c co khoi lugng dat (1486,661511,66 g/con); ga mai (1218,25-1231,50 g/con). Su sai khac ye khoi lugng ca the ga giira
cac the 110 la khong co Sr nghia thong ke (P>0,05). Nhung giaa ga tong vai ga mai a cac the
thong ke (P<0,05).
coy
N la co su sai khac ve khoi lugng ca theCOnghia
So yen ket qua nghien cau tren ga Lac Thus/ cua Vu Ng9c San va cs. (2015), cho biet 8 tan
tuoi ga Lac ThuSr CO lch6i lugng ca the la 646,27g b ga tr6ng va 531,43g 6 0 mai thiga Hac
Phong dat cao han nhtmg so vai ga H'mong ding th6i diem 19 tan tuoi, ga tong dat
41


PHAM CONG THIEL). ChQn Igc dan hat nhcin ga Hac ..song

(1755,5-1785,9%), ga mai dat (1276,9-1289,8 g/con) Pham Cong Thieu va cs. (2010), thi ket
qua nghien cfru teen ga Hac Phong thap hon.
Kha tang sinh sin
Tuoi de qua trung d'au, de 5% va 50% ding nhu nang suit trung cua dan hat nhan ga Hic

Phong dugc trinh bay tai Bang 6.
Bang 6.. Mot so chi tieu giai doan sinh san ga Hdc Phong qua 3 the he (n--200 mai)
Chi tieu
Tuei de qua trirng du tien
Tuei de dat 5%
Tuei de dat 50%
Nang suit trung/mai/72 tuAn tuoi
TS', l'e de binh quan
Tieu ten thirc 'an/10 trung

PVT
ngay
ngay
ngay
qua
%
kg

The N. xudt phat
141
146
226
150,19a
41,26a
2,46a

The he 1
143
151
218

151,49ab
41,62a
2,43a"

The N 2
142
150
215
152,65b
41,94a
2,39'

Ghi chfi: Theo hang ngang nhang so trung binh sang cac chir cal khac nhau thi sy. sai khcic co nghra nghia
thong kg (P<0,05).

Ket qua Bang 6 cho thy ga Hdc Phong c6 Wei de qua tdrng &Au tien (141-143 ngay), so vai
ket qua nghien dru cda Phalli C6ng 'Thiel' va cs. (2010); Bfii Quang HO va cs. (2017), tren ga
H'mong cho biet tuoi de qua trung dau tien (135-141 ngay) thi lc& qua nghien cir*cila chung
toi la tixang &rang.
Ga Hac Phong c6 Wei de 5% (146-151 ngay) va de dat 50% (215-226 ngay) tucmg &rang ket
qua nghien c*u cua Nguyen Thi Mood va cs. (2017), ten ga Phu Phan trang, Ngo Thi Kim
Cuc va cs. (2015), tren ga Meng, Bui Quang HO va cs. (2017), tren ga H'mong (147-153
ngay). Nhu vAy ga Hac Phong c6 Mei phat dpc kha sam nhu ga Ai Cdp (Nguyen Thi Muoi va
cs., 2004), ga Mang, ga H'mong va ga Phu Phan trang.
Nang suit trimg cua ga Hdc Phong/72 tuAn Wei tang din qua 3 the he (150,19-151,49 va
152,65 qua) tuang ung tS7 le de binh quan (41,26-41,62 va 41,94%); tieu ton tithe an/10 trung
(2,39-2,46 kg). So sanh vai ket qua nghien ciru cua Pham Cong Thieu, va cs. (2010), Bfii
Quang HO va cs. (2017), tren ga H'mong cho biet ga H'mong c6 nang suit trung/mai/72 tuan
tuoi dat (101,55-114,32 qua), tieu ton thirc an/10 qua trung (3,34-3,75 kg) thi ga Hac Phong
c6 nang suit trung cao han nhieu va tieu ton th*c an/10 qua trung la thap han ga H'mong.

Khai hrong NI chat luvng trirng din 110 nhin gi Hie Phong
Khao sat khoi luting va chdt luting **rig dan hat nhan ga Fric Phong qua 3 the he, mtii the he
35 qua tai tuan tuoi 38. Ket qua thu dugc the hien tai Bang 7.
Ket qua tai Bang 7 cho thdy khoi luting trung dan hat nhan ga Hdc Phong 38 tuAn Wei dat
44,29-44,97g. Dan vi Haugh dat tir 79,46-82,74. Nhu vdy *ling ga Hic Phong c6 khoi Luang
twang dtrcmg ga Lac Thug (45,66g) trong nghien ciru cua Vu Ngoc San va cs. (2015), va cao
han trung ga Ri va Ri lai trong nghien ciru dm Nguyen Huy Tuan (2013), nhung thap han
khoi luting trung ga Phu Phan tang (48,51g) trong nghien ciru dm Nguyen Thi Muei va cs.
(2017). Cac chi tieu ye chat luting trung deu dat tieu chuan trung giong.

42


VIEN CHAN NUOI - Top chi Khoa hoc Cong nghe Chan nu& - St) 85. Mang 3/2018

Bang 7. KhOi luting va chit luting trirng ga Hie Phong hat nhan
(tuan tuoi 38) (n=35 qua)
Chi tieu

The he 2
The he 1
The N xuAt phat
Mean± SE CV (%) Mean± SE CV (%) Mean± SE CV (%)

Kh6i luting trUng (g)

44,29 ± 0,54

7,24

44,97 ± 0,75

9,92

44,63 ± 0,68

9,05

Ty le long do (%)
Ty le long tang (%)
Ty le vo (%)
Chi s6 long do
Chi s'6 long tang
DO day vo (mm)
Don vi Haugh (HU)

32,05± 1,17

32,73 ± 0,96

17,37

20,80

57,09± 1,16
10,18 ± 0,30
0,45 ± 0,003
0,08± 0,001
0,34 ± 0,01

12,00
17,69
4,45
12,50
17,65

33,28± 1,17
56,77± 1,28
9,95 ± 0,26
0,46 ± 0,005
0,08 ± 0,001

0,33 ± 0,01

21,68
16,68
12,64
4,26
12,50
12,82

0,34± 0,1

17,67

79,46± 1,43

10,63

82,57± 0,79

5,69

82,74 ± 0,74

5,32

The he

58,14± 1,64
9,81 ± 0,21
0,47 ± 0,004
0,08± 0,001

13,29
15,35
6,52
12,50

TS, 1e phoi vi ket qui ap no. din 110 nhin ga Hac Phong
Theo dOi qua 3 the N dan hat nhan ga Hac Phong \led tong s6 trirng theo d'oi 19.458 qua, ket
qua thu duvc the hien tai Bang 8.
Bang 8. Ket qua ap no trong ga Hac Phong dan hat nhan
Chi tieu

The he xuAt phat The he 1

The he 2 TOng so

T6ng so trimg dua vao ap (qua)

5.667

6.955

6.836

19.458

So trirng co ph6i (qua)

5.114

6.379

6.350

17.843

Ty le trong c6 phoi (%)

90,24

92,89

TOng s6 ga con no ra (con)

4.553

91,72

5.672

5.716

91,70
15.941

Ty le noltOng trirng ap (%)
Ty le no/trimg có phoi (%)

80,34

83,62

81,93

89,03

81,55
88,92

90,02

89,34

SO ga con loai 1 (con)

4.371

5.419

5.373

15.163

Ty le no ga loai 1/tOng trirng ap (%)

77,13

77,92

78,60

77,93

Qua so lieu tai Bang 8 cho thy ty le trong co phoi cua dan hat nhan ga H&c Phong (90,24ap dat 77,1392,89%); ty le noltrirng có phoi dat (88,92-90,02%) va ty le nog ga loai
78,60%. Kest qua nay ciing Wang &rang ket qua nghien dru cna NguyL Thi Mixed va cs.
(2017), tren ga Phu Phan tang cho biet *a co ty le phOi (90,19%),nhung thap hcm ga H'mong
, ty le phoi
Pham Cenv Thieu va cs. (2010), ding , ga H'mong CO
trong nghien cdu
ga
Hac
Phong thip
(97,60-97,87%) va lenoltrimg ap (87,08-88,40%) thi ket qua ap ner
hon. Tuy nhien ket qua tai Bang 8 cang cho thay ty le trimg có phoi va ket qua ap no trdng ga
Hac Phong ding tuong throng vai mot so giong ga ban dia clang nuoi o nua(c to nhu ga Ac, ga
Thai Hoa, ga Mia, ga Lac Thuy,...

43

PHAM CONG THIEU. ChQn loc dan hot nhdn ga Hcic Phong

KET LUAN VA DE NGHj
Ket 1u4n
floc ddm ngogi hinh: 01 ngay tu6i ga Hac Phong c6 long mau den dAng nhAt, mo va than
mau xam den, than co 6 ngOn va 1 hang long than a ng6n ngoai ding (khac han vii ga Ac, ga
Thai Hoa long mau trang), than (ngu trio) 5 ng6n. Thai, diem 08 va 19 tuan tu6i ga trong
va ga mai Hac Phong c6 130 'Ong xtrac b6ng mau den tuyen dong nhat. Ga mai c6 tam voc nho
han ga trong, ga mai c6 mao nu, dau c6 mtt chOm long mau den 6 dinh dau gi6ng nhtr ga Ac,
ga Thai Hoa. Ga trong c6 hai kieu mao (mao nu va mao c6), mao nu 56,61%, mao ca 43,39%,
mao, tich mau den sam, long duoi xanh den, yem rat phat trien c6 mau den sam. Diem dac
tong cua ga Hac Phong la c6 bQ long mau den tuyen, than 6 neon va c6 mOt hang long
ngon ngoai ding, da, thit va xuang den, phis tang den.
Khci nang sinh truing: Dan hat nhan ga Hac Phong c6 tS/ le nuoi sting dat cao a giai doan ga
con, ga do-hau bi (93,22-95,11%). Khoi lugng ca the luc 08 tuan tuoi con trong dat 776,67779,66 g/con; con mai dat 674,87-679,25 g/con, vOi tS/ lg than 19c (21,74-22,56%) a ga trong
va (55,56-55,94%) a ga mai. Lite 19 tuan tutd ga trong c6 khoi lugng ca the dat 1486,60 —
1511,66 g/con; ga mai dat 1218,25-1231,50 g/con.
Kith nang sinh san: tu6i de dat 5%: 141-143 ngay. Nang suit trtIng/mai/72 Win tu6i the he
xuat phat 150,19 qua, the he 2 dat 152,65 qua. Tieu ton thirc An/10 trimg 2,39 — 2,46 kg. Kh6i
'Iran trimg 44,29-44,79g. TS/ le trirng c6 phoi dat 90,24-92,89%; tS/ le no/trirng c6 phoi dat
88,92-90,02%; tS/ le na ga loai 1/tong trimg ap dat 77,13-78,60%.
Qua 3 the he chgn 19c dan ga Hac Phong co str on dinh va d'Ang nhit ve ngoai hinh va mirc dO
&Ong deu cua cac dan cao, dap img dtrgc tieu chuan cua dan hat nhan ga Hac Phong.
De nghi
Tiep tuc nghien ciru than 19c nang suit ca the k& hap vOi gia dinh a cac the he tier) theo de
nang cao cac tinh trang ye khoi lugng ca the va nang suit trimg tao dan ga Hac Phong thuan
chung mang d4c Tung cua gi6ng va co nang suit chat Wang cao.
Nghien cfru xac dinh d4c diem kieu gen ga Hac Phong nham danh gia day du tiem nang di

truyen cua chAng de c6 huong khai that hieu qua nguon gen quS/ cua ga Hac Phong.
TAI LIEU THAM KHAO
Ngo Thi Kim Cuc, Nguyen Cong Dinh, VO Chi Thien, Pham Thi Bich Hut% Nguyen Thi Minh Tam, TrAn
Trung Th6ng, HO Xuan Tung, Nguyen Trong Tuyen, Pham C8ng Thieu va Nguyen Thanh San. 2015.
Nghien ciru chon loc giOng ga Mong. Bao cao khoa hoc thang 9/2015 - Phan Di truyen-giOng vat nuoi —
Vien Chan nuoi, Ha NOi, tr. 119-129.
Bui Quang HO, Le Wing San, Nguyen Thi Anh, Chu Thanh Nam va Nguyen Van Ming. 2017. Kha nang san
xuat cua ga H'm8ng nuoi trong diet' kiln Wong h0 tai tinh Thai Binh. Tap chi Khoa hoc Cong ngh0
Chan nuoi, so 81 thang 11/2017, tr. 13-23.
Nguyen Thi MIRA, Phung Dim Tien va Le Thu Hien. 2004. Ket qua nghien ciru nhan than chon 19c mOt so tinh
tang san xuat cua ga Ai Cap qua 6 the he. Tuyen tap cong trinh nghien ciru khoa hoc than nuoi ga. Nha
xuat ban Nang nghiep, Ha NOi, tr. 129-138.
Nguyen Thi Mirari, Bach Mph Dieu, Pham Thi Thanh Binh, Nguyen Trung Hieu, Nguyen Thi Thanh Van,
Nguyen Van Tam, Dao Doan Trang va Ngo Thi TO Uyen. 2017. Ket qua bulk dau nghien ciru kha nang
san xuat cua ga Phu Phan tang nuoi tai Trung tam ThIrc nghiem va Bao ton vat nuoi. Bao cao khoa hoc
nam 2015-2017. PhAn Di truyen-giOng vat nuoi. Ha NOi, thang 7/2017, tr. 261-270.

44


V104 CHAN NUOI — Top chi Khoa hoc Cling nghe Chan nuoi — SO 85. Thang 3/2018

VU NgQc San, Tran Quec Hung, Nguyen Thj HAi vi Nguyen Van Tam. 2015. Ket qui nuoi bao t6n ga Lac Thus/
cdc the hg tai Vien Chan nuoi. Ban cao khoa hoc nam 2013 — 2015 — Phan Di truyen — giong vat nuoi,
thing 9/2015, tr. 106-118.
Nguyen Van Thien NIA Iran Dinh Mien. 1995. Chon lQc vi nhan giOng vat nuoi. GU() trinh cao hoc Ming nghiep,
i tr. 32-95.
HA Ni,
Pham Cong Thieu, Vu NgQc San, Hang Van Tieu, Iran Kim Nhan vi Nguyen Thj Thug. 2010. Cho loc vi
nail than 3 gitmg ga nhap n8i HW, RiD, vi Pgi. Bdo cao khoa hoc — Phan Di truyen — ging vat nuoi

— Vien Chan nail, HA Nei, tr. 269-278.
Nguyen Huy Tan. 2013. KM ang sin xuAt caa to hap lai giaa gi Ri yang ram vi ga Ri lai (7/8 Ri yang ram vi
1/8 Luang Phtrong) nuoi tai Trai Thijc nghiem Lien Ninh. Lunn van Thac s5 Nong nghiep. HQc Vien
Nong nghiep Viet Nam.
Ngay nhan bAi: 26/02/2018
NO)/ phan bien danh gid: 02/3/2018
NO), chap nhan clang: 28/3/2018

45