Nghiên cứu nuôi vỗ béo cua gạch (scylla paramamosain) trên bể với các loại thức ăn và mật độ khác nhau - 12

Nhiệt độ (0C)

pH

Độ mặn (‰)

NO2

(mg/l)

NH3/NH +

4

(mg/l

Sáng

Chiều

Sáng

Chiều

14 .6

27

29

8.1

8.2

28

0

0.5

15 .6

28

29

8.1

8.1

16 .6

28

29

8.1

8.1

28

1

1

17. 6

28

29

8.1

8.2

18. 6

28

29

8.1

8.1

19. 6

28

29

8.2

8.2

24

1

1

20. 6

28

29

8.2

8.2

21. 6

27

29

8.2

8.2

22. 6

27

29

8.2

8.2

22

2

1

23. 6

27

30

8.1

8.2

24. 6

28

29

8.2

8.2

25. 6

28

30

8.0

8.0

20

2

2

26. 6

28

30

8.0

8.1

27. 6

28

30

8.0

8.1

28. 6

29

30

7.9

8.0

20

2

2

29. 6

28

29

7.9

8.0

30. 6

27

29

7.9

8.0

01. 7

26

28

8.3

8.4

16

2

2

02. 7

28

30

8.2

8.2

03. 7

28

30

8.3

8.3

04. 7

27

28

7.8

8.0

16

2

2

05. 7

27

28

7.8

8.0

2

2

06. 7

26

28

8.3

8.4

12

2

2

07. 7

28

30

8.2

8.2

08. 7

28

30

8.3

8.3

09. 7

27

28

7.8

8.0

12

2

2

10. 7

26

27

7.8

8.0

12

2.5

2

Stt

Khối lượng (g)

Rộng mai (cm)

Độ rộng nhất của yếm (cm)

Độ rộng giữa hai chân chèo (cm)

Hở yếm (cm)

NGHIỆM THỨC I

BỂ I

1

250

11

4.5

4.3

0.3

2

200

9.5

42

4

0.25

3

220

12

5.5

5

0.3

4

290

10.5

4.7

4.5

0.3

5

310

11.5

5.5

5

0.3

6

280

12

4.7

4.5

0.3

BỂ II

7

300

11

5

4.5

0.3

8

380

12

5.3

5

0.3

9

310

12

5.5

5

0.3

10

310

12

5.5

5

0.3

11

240

10

4.5

4

0.3

12

270

10.8

4.8

4.5

0.3

BỂ III

13

260

10

4.5

4

0.3

14

200

9.5

4.5

4

0.3

15

250

11

5.2

4.7

0.3

16

200

10.5

4.5

4

0.25

17

300

12.5

5.5

5

0.3

18

290

10.5

4.7

4.5

0.3

NGHIỆM THỨC II

BỂ I

1

340

12

5

4.5

0.3

2

430

13

5.5

5

0.3

3

240

10

4.5

4

0.3

4

300

10.5

4.7

4.5

0.3

5

500

13.5

5.8

5.2

0.35

6

310

12

5.5

5

0.3

7

310

12

5.5

5

0.3

8

250

11

5.2

4.7

0.3

9

200

10.5

4.5

4

0.25

10

300

12.5

5.5

5

0.3

11

350

12

5.5

5

0.3

12

250

12

6

5.5

0.3

BỂ II

13

300

13

5.5

5

0.35

14

280

10

4.5

4.2

0.3

15

220

10

4.3

3.8

0.3

16

250

10.5

4.5

4

0.3

17

300

11.5

5

4.5

0.3

18

240

10

4.5

4

0.3

19

270

10.8

4.8

4.5

0.3

10

350

12

5.5

5

0.3

21

250

12

6

5.5

0.3

22

220

10

4.3

3.8

0.3

23

260

10

4.5

4

0.3

24

200

9.5

4.5

4

0.3

BỂ III

25

250

11

5.2

4.7

0.3

26

200

10.5

4.5

4

0.25

27

300

12.5

5.5

5

0.3

28

350

12

5.5

5

0.3

29

250

12

6

5.5

0.3

30

280

10.5

5

4.5

0.3

31

270

10.5

4.8

4.5

0.3

32

240

10.5

4.5

4

0.3

33

200

10

4.5

4

0.3

34

280

11

4.5

4

0.3

35

400

12.5

5.7

5

0.25

36

290

11.5

5.5

5

0.25

NGHIỆM THỨC III

BỂ I

1

310

11.5

5.5

5

0.3

2

400

12.5

5.7

5

0.2

3

220

10.5

4.5

4

0.3

4

300

11

5.2

5

0.3

5

280

10.5

5

4.5

0.3

6

270

10.5

4.8

4.5

0.3

7

240

10.5

4.5

4

0.3

8

200

10

4.5

4

0.3

9

280

11

4.5

4

0.3

10

400

12.5

5.7

5

0.25

11

290

11.5

5.5

5

0.25

12

310

12

5.5

5

0.3

13

240

10

4.5

4

0.3

14

270

10.8

4.8

4.5

0.3

15

290

11.5

5.5

5

0.25

16

280

11

4.5

4

0.3

17

310

11.5

5.5

5

0.3

18

400

12.5

5.7

5

0.2

19

200

9.5

4.5

4

0.3

20

250

11

5.2

4.7

0.3

21

200

10.5

4.5

4

0.25

22

300

12.5

5.5

5

0.3

23

290

10.5

4.7

4.5

0.3

24

200

10

4.5

4

0.3

BỂ II

25

200

10

4.5

4

0.3

26

280

11

4.5

4

0.3

27

340

12

5

4.5

0.3

28

430

13

5.5

5

0.3

29

240

10

4.5

4

0.3

30

300

10.5

4.7

4.5

0.3

31

500

13.5

5.8

5.2

0.35

32

310

12

5.5

5

0.3

33

200

10

4.5

4

0.3

34

280

11

4.5

4

0.3

35

400

12.5

5.7

5

0.25

36

290

11.5

5.5

5

0.25

37

280

11

4.5

4

0.3

38

310

11.5

5.5

5

0.3

39

310

11.5

5

4.8

0.3

40

350

12

5.5

5

0.3

41

390

12

5.5

5

0.3

42

470

12.5

6

5

0.3

43

310

11.5

5

4.5

0.3

44

305

5.2

4.7

4.5

0.3

45

310

11.2

4.8

4.6

0.35

46

300

11.5

5

4.5

0.25

47

260

10.5

5

4.5

0.3

48

270

12

5

4.5

0.3

BỂ III

49

340

12.5

5.9

5.2

0.3

50

180

11

4.7

4.5

0.3

51

440

12.8

6

5.5

0.3

52

250

11.8

5.2

4.7

0.3

53

280

13

5.5

5

0.3

54

180

11.8

5

4.6

0.2

55

290

12

5.5

5

0.3

56

270

11.3

6

5

0.3

57

360

13.4

6.1

5.5

0.3

58

220

10.8

5.1

4.6

0.2

59

480

14.8

6.6

5.9

0.3

60

310

12

5.5

5

0.3

61

300

12

5.5

4.5

0.3

62

250

11

5.2

4.7

0.3

63

200

10.5

4.5

4

0.25

64

300

12.5

5.5

5

0.3

65

350

12

5.5

5

0.3

66

340

12

5

4.5

0.3

67

430

13

5.5

5

0.3

68

240

10

4.5

4

0.3

69

300

10.5

4.7

4.5

0.3

70

500

13.5

5.8

5.2

0.35

71

310

12

5.5

5

0.3

72

300

12

5.5

4.5

0.3

Stt

Khối lượng (g)

Rộng mai (cm)

Độ rộng nhất của yếm (mm)

Độ rộng giữa hai chân chèo

(cm)

Hở yếm (cm)

Cua chết

Chưa đầy gạch khi thu mẫu

Cua thu mẫu đầy gạch

NGHIỆM THỨC I

BỂ I

1

255

11

4.5

4.3

0.4

X

2

207

9.5

42

4

0.35

x

3

207

12

5.5

5

0.35

x

4

295

10.5

4.7

4.5

0.4

x

5

320

11.5

5.5

5

0.35

x

6

290

12

4.7

4.5

0.4

X

BỂ II

7

310

11

5

4.5

0.4

x

8

385

12

5.3

5

0.4

X

9

315

12

5.5

5

0.4

X

10

310

12

5.5

5

0.4

x

11

245

10

4.5

4

0.4

x

12

270

10.8

4.8

4.5

0.3

X

BỂ III

13

270

10

4.5

4

0.4

x

14

200

9.5

4.5

4

0.3

X

15

260

11

5.2

4.7

0.4

x

16

205

10.5

4.5

4

0.3

x

17

310

12.5

5.5

5

0.35

x

18

295

10.5

4.7

4.5

0.4

x

NGHIỆM THỨC II

BỂ I

1

345

12

5

4.5

0.4

X

2

430

13

5.5

5

0.3

X

3

250

10

4.5

4

0.4

x

4

310

10.5

4.7

4.5

0.4

x

5

510

13.5

5.8

5.2

0.4

X

6

315

12

5.5

5

0.35

X

7

310

12

5.5

5

0.35

X

8

255

11

5.2

4.7

0.4

9

202

10.5

4.5

4

0.3

10

305

12.5

5.5

5

0.4

11

360

12

5.5

5

0.4

X

12

225

12

6

5.5

0.4

x

BỂ II

13

300

13

5.5

5

0.35

X

14

300

10

4.5

4.2

0.4

x

15

220

10

4.3

3.8

0.3

X

16

255

10.5

4.5

4

0.4

x

17

310

11.5

5

4.5

0.4

X

18

245

10

4.5

4

0.4

19

280

10.8

4.8

4.5

0.35

X

20

355

12

5.5

5

0.35

X

21

255

12

6

5.5

0.4

X

22

225

10

4.3

3.8

0.35

23

265

10

4.5

4

0.4

24

310

9.5

4.5

4

0.3

X

BỂ III

25

250

11

5.2

4.7

0.3

x

26

210

10.5

4.5

4

0.4

x

27

300

12.5

5.5

5

0.3

X

28

365

12

5.5

5

0.4

x

29

250

12

6

5.5

0.3

X

30

285

10.5

5

4.5

0.3

31

275

10.5

4.8

4.5

0.4

X

32

245

10.5

4.5

4

0.4

X

33

205

10

4.5

4

0.35

X

34

290

11

4.5

4

0.4

35

410

12.5

5.7

5

0.3

36

225

11.5

5.5

5

0.4

x

NGHIỆM THỨC III

BỂ I

1

315

11.5

5.5

5

0.35

X

2

400

12.5

5.7

5

0.2

X

3

226

10.5

4.5

4

0.35

X

4

310

11

5.2

5

0.4

x

5

290

10.5

5

4.5

0.4

x

6

270

10.5

4.8

4.5

0.3

x

7

240

10.5

4.5

4

0.3

x

8

210

10

4.5

4

0.4

x

9

280

11

4.5

4

0.4

X

10

410

12.5

5.7

5

0.4

x

11

300

11.5

5.5

5

0.4

x

12

315

12

5.5

5

0.4

x

13

245

10

4.5

4

0.35

x

14

275

10.8

4.8

4.5

0.35

X

15

300

11.5

5.5

5

0.3

x

16

285

11

4.5

4

0.4

x

17

315

11.5

5.5

5

0.4

X

18

410

12.5

5.7

5

0.3

x

19

205

9.5

4.5

4

0.35

x

20

255

11

5.2

4.7

0.4

x

21

205

10.5

4.5

4

0.35

X

22

315

12.5

5.5

5

0.3

x

23

295

10.5

4.7

4.5

0.35

x

24

260

10

4.5

4

0.4

x

BỂ II

25

410

10

4.5

4

0.4

X

26

285

11

4.5

4

0.4

X

27

350

12

5

4.5

0.4

x

28

435

13

5.5

5

0.35

x

29

245

10

4.5

4

0.4

X

30

305

10.5

4.7

4.5

0.4

x

31

515

13.5

5.8

5.2

0.35

x

32

315

12

5.5

5

0.35

x

33

205

10

4.5

4

0.4

X

34

290

11

4.5

4

0.4

x

35

410

12.5

5.7

5

0.3

x

36

300

11.5

5.5

5

0.35

X

37

285

11

4.5

4

0.4

x

38

315

11.5

5.5

5

0.4

x

39

310

11.5

5

4.8

0.4

X

40

360

12

5.5

5

0.4

x

41

400

12

5.5

5

0.4

x

42

470

12.5

6

5

0.35

X

43

320

11.5

5

4.5

0.4

x

44

305

5.2

4.7

4.5

0.35

X

45

320

11.2

4.8

4.6

0.4

x

46

310

11.5

5

4.5

0.4

x

47

270

10.5

5

4.5

0.4

x

48

270

12

5

4.5

0.3

x

BỂ III

49

345

12.5

5.9

5.2

0.35

X

50

185

11

4.7

4.5

0.4

x

51

440

12.8

6

5.5

0.3

X

52

250

11.8

5.2

4.7

0.3

X