A culture method for preventing fatty liver disease of tilapia
A breeding method and technology of fatty liver disease, applied in the field of breeding to prevent fatty liver disease of tilapia, to achieve the effect of reducing lipid quality and reducing lipid increase
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Embodiment 1
[0031] Breeding place: outdoor cement breeding pond
[0032] S1. Preliminary breeding of fry
[0033] Healthy Nile tilapia fry were weighed in advance, and the initial body mass specification was 30 ± 2g, and they were put into the breeding pond at a density of 2000 fish / mu. :00 o'clock and 17:00 o'clock feeding twice, the amount of feeding twice is 2.5% of fish body weight, carry out normal breeding for 30 days.
[0034] S2. Short-term fasting breeding
[0035] After 30 days of normal breeding, the Nile tilapia in the pond were fasted for 21 days.
[0036] S3. Re-feeding and breeding
[0037] After the 21-day fasting treatment, feed the Nile tilapia in the pond in increments of 1%-2.5%-5% of the fish body weight, and the breeding time of each feeding stage is 7 days until harvest .
[0038] In the cultivation process, from the 0 day, 7 days, 14 days, 21 days, 28 days, 35 days, 42 days sampling from the beginning of fasting, measure the Nile tilapia body weight, stain the...
Embodiment 2
[0040] Breeding place: outdoor cement breeding pond
[0041] S1. Preliminary breeding of fry
[0042] Healthy Nile tilapia fry were weighed in advance, and the initial body mass specification was 30 ± 2g, and they were put into the breeding pond at a density of 2200 fish / mu. :00 o'clock and 17:00 o'clock feeding twice, the amount of feeding twice is 1.5% according to the fish body weight, carry out normal breeding for 30 days.
[0043] S2. Short-term fasting breeding
[0044] After 30 days of normal breeding, the Nile tilapia in the pond were fasted for 7 days.
[0045] S3. Re-feeding and breeding
[0046] After the 7-day fasting treatment, feed the Nile tilapia in the pond in increments of 1%-2.5%-5% of the fish body weight, and the breeding time of each feeding stage is 12 days until harvest .
[0047] During the breeding process, samples were taken from day 0, day 7, day 14, day 21, day 28, day 35 and day 42 of fasting to measure the body weight of Nile tilapia.
Embodiment 3
[0049] Breeding place: outdoor cement breeding pond
[0050] S1. Preliminary breeding of fry
[0051] Healthy Nile tilapia fry were weighed in advance, and the initial body mass specification was 30 ± 2g, and they were put into the breeding pond at a density of 2000 fish / mu. :00 o'clock and 17:00 o'clock feeding twice, twice feeding amount is 4% according to fish body weight, carry out normal breeding for 28 days.
[0052] S2. Short-term fasting breeding
[0053] After 28 days of normal breeding, the Nile tilapia in the pond were fasted for 14 days.
[0054] S3. Re-feeding and breeding
[0055] After the 14-day fasting treatment, the Nile tilapia in the pond were fed in increments of 2%-4%-7% of the fish body weight, and the breeding time of each feeding stage was 10 days until harvest .
[0056] Sampling and detection are the same as in Example 2.
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