giáo trình mô đun chọn và cố định lồng bè ở vị trí nuooi

BỘ NÔNG NGHIỆP VÀ PHÁT TRIỂN NÔNG THÔN





GIÁO TRÌNH MÔ ĐUN
CHỌN VÀ CỐ ĐỊNH LỒNG BÈ
Ở VỊ TRÍ NUÔI

MÃ SỐ: MĐ02
NGHỀ NUÔI CÁ LỒNG BÈ TRÊN BIỂN

Trình độ: Sơ cấp nghề













1
TUYÊN BỐ BẢN QUYỀN
     




d
MÃ TÀI LIỆU: MĐ 02

2
LỜI GIỚI THIỆU

 

              

 

Giáo trình này là  

04  

   
áo trình. 



- .
- Các tham 








5. Thành viên: Ths 

3
MỤC LỤC

 2
 3
 5
 5
 5
 5
 bè 6
 6
 6
 7
g khác 12
 12
 13
Bài  14
 14
 14
2.  14
3. 














15
  16
 16
 17
ung: 17
 17
 17
 18
 19
 19
 20
 20
 20
 21
 23
 23
 24
 25
 25
 25
 25
 25

 30
 32

4

Mã mô đun: MĐ 02
Mục tiêu:
Sau khi học xong mô đun học viên có khả năng:
Kiến thức:
- 
Kỹ năng:
- 

Thái độ:
- 
Nội dung của mô đun:


04 
Phƣơng pháp học tập của mô đun:






Phƣơng pháp đánh giá kết quả học tập của mô đun:
- 






- 







5
Bài mở đầu
Giới thiệu:



 


Mục tiêu:
- 
- 

- 
Nội dung:


 







4 bài:





  
         





6
Bài 1: Chọn vị trí đặt lồng bè
Giới thiệu:



 


Mục tiêu:
- 










;
- 







 , pH, 



;
-  , pH, 



; 
















- 
A. Nội dung:

 trí kín sóng gió



 


- 
- 
      




 0,7m/giây, không có sóng gió


  

   

 nuôi.

7


 

quá 10 ngày/tháng.
  

:
- 
-  
- 










Hình 2- mn


c 1. Nh 1 - 2 gic bin c


Hình 2-2. Thao tác nh c mn

8
c y tm chn sáng

Hình 2-y tm chn sáng

c c phi ph h







Hình 2-  thut

c t ngm

Hình 2-c kt qu


9
c c s nh tiêu c sao cho s thy rõ nht.









Hình 2-6c kt qu  mn





Công thức tính:
S(‰) = 1.305 (T – 1) + (T
0
– 17,5) x 0,2




T
0




Ví dụ về các thông số đo được và cách tính độ mặn:


0
): 28
0
C.
Độ mặn thu được như sau:
 1) + (T
0
 17,5) x 0,2
= 1.305 (1,019  1) + (28  17,5) x 0,2

10
= (1.305 x 0,019) + 10,05 x 0,2
= 24,795 + 2,01
= 26,805

-             
+
, K
+
,
Ca
+2
, Mg
+2

  
 
- 8,5.
- - 

- 


-            st Kit 
Germany:












Hình 2-7 Germany
c 1: Ra l thy tinh ba ln bng mc cn ki
y 5ml mc vào l. Lau khô bên ngoài l.
c 2: Lu chai thuc th c khi s dng. Cho 4 git thuc
th vào l thy tinh cha mc cn kip l, lc nh ri m
np ra.

11

c 3: So sánh kt qu th nghim vi bt l thy tinh
vào vùng trng ca bi chiu gia kt qu th nghim vi bng
so màu ri xem giá tr ng.
c 4: Làm sch trong và ngoài l thy tinh bc và
sau mi ln kim tra.






C¸ biÓn
7,5 - 9,0
t«m
7,5-8,5

- 
-
1 2 3 4 5 6 7 8 9 10 11 12 13 14  pH
Axit m¹nh axit kiÒm
KiÒm m¹nh
yÕu Trung tÝnh
yÕu
- 

 
 


- 

Kit  Germany.










Hình 2-8Sera O
2
Test Kit  Germany

12
c tin hành:
c 1: Ra l thy tinh ba ln bng mc cn ki
y mn mép l. Lau khô bên ngoài l.
c 2: Lu chai thuc th c khi s dng. Nh 6 git thuc
th s 1 + 6 git thuc th s 2 vào l cha mc cn kiy np l
th ngay sau khi nh (phm bo không có bt k bt khí nào trong l), lc
 np l ra.
t l th n trng ca bng so màu, so sánh màu kt ta
ca l vi các cnh n ôxy (mg/l). Nên thc hin vic so
i ánh sáng t nhiên, tránh ánh sáng mt tri trc tip chiu vào.
c 4: Làm sch trong và ngoài l thu tinh bc và
sau mi ln kim tra.

 

   nuôi.
 
Nồng độ Ôxy
Đánh giá
2 mg/l
ôxy .
4 mg/l
ô
6 - 8 mg/l
xy

-             

-  3m).
-  4m.
- 
- 
-             

B. Câu hỏi và bài tập thực hành:
- Câu hi
?
- Bài tp thc hành
 

13
 pH.
  ôxy hòa tan.
C. Ghi nhớ:
- 

- 
- 


14
Bài 2: Di chuyển lồng bè đến vị trí nuôi
Giới thiệu:

      
g bè an toàn

Mục tiêu:
- 

- 
- 
- 
A. Nội dung:


- 


     

- - - 2


-            
Ø22-  70m.

-  

2. 
2.1. 
           

lên.
 
 .

15
2.2.  


           

2.3. 




Hình 2-
3. 














  









16

B. Câu hỏi và bài tập thực hành:
- Câu hi

- Bài tp thc hành
 và rèn thao tác.
C. Ghi nhớ:
- 
- 

17
Bài 3: Cố định lồng bè

Giới thiệu:




Mục tiêu:
-  
- 
- 
A. Nội dung:


-   

 
6  6 cây.
- - 
dùng 4  6 n

-           - Ø35; dà  


- 
-  8   15cm.
- -  
)
-   10
 
- .

2.1. 

         


18


2.2. 



           


3.1. 


  



             
   
gió.


 35mm. 
  
 















Hình 2-

19
3.2. 








 ()
90 - 100mm,
dài 3,5- 4,5m tùy 

0


- 














Hình 2-7. 
B. Câu hỏi và bài tập thực hành:

- Câu hi



+ 
- Bài tp thc hành

Bài 2. Chn cc neo, buc neo (cc lc)
C. Ghi nhớ:
-  c lm bng gió, dòng chy và
chc chn.


20
Bài 4: Lắp ráp lồng lƣới
Giới thiệu:



Mục tiêu:
-   , vào can; 




 ;
- 
- 
- 
A. Nội dung:



- 
             
3m, 5x5x3m hay
6x3x3m. Kích th= 20- 60mm, tùy 

- 
cát.
-  
-  2.
- 

-               
 
- 

- 

  - PE) vào

              10mm là



21





 ;






 
















Hình 2-8
2. 

-  



  10kg.

22
-              
 
 
kính 8  10
 
-  

 
-  
 

- 
- 

- 

- .


thêm 2  



Hình 2-9

23


- 

- 



Hình 2-10. 

-     
Ø = 2mm.
- 
- 

- 
B. Câu hỏi và bài tập thực hành:
- Câu hi
+ Nêu ?
- Bài tp thc hành

Bài 2. 

24
 
C. Ghi nhớ:
- .
- .
- .