Feed for litopenaeus vannamei
A technology of shrimp feed and vanabine, applied in animal feed, animal feed, application and other directions, can solve the problems of high protein level of compound feed, ammonia nitrogen discharge and phosphorus content, water environment pollution, etc., to reduce water environment pollution, reduce Ammonia nitrogen emission, the effect of reducing pollution
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Embodiment 1
[0026] The feed was formulated according to the formula shown in Table 1, and 0.28 g of Litopenaeus vannamei was fed for 56 days. The experimental results showed that the apparent protein digestibility of soybean meal, peanut meal and shrimp head powder were all greater than 78.0%, which was comparable to that of domestic fish meal and direct-fired fish meal. There was no significant difference in the apparent digestibility of protein, and it was higher than that of cotton meal, rapeseed meal and corn gluten meal; the apparent digestibility of total amino acids of soybean meal, peanut meal and shrimp head powder were all higher than 87.0%.
Embodiment 2
[0028] Feed was formulated according to the formula shown in Table 2, and the Litopenaeus vannamei of 0.47g was raised for 56 days, and the weight gain rate of Litopenaeus vannamei of formula 2 (adding methionine) was 303.7%, the feed coefficient was 1.97, and the specific growth rate was 2.49, which was compared with the contrast Compared with group formula 1 (without adding methionine), the weight gain rate increased by 33%, the feed factor decreased by 20%, and the specific growth rate increased by 17%.
Embodiment 3
[0030] Feed was formulated according to the formula shown in Table 3, and the Litopenaeus vannamei of 0.48g was raised for 56 days, and the weight gain rate of Litopenaeus vannamei of formula 2 (adding lysine) was 190%, the feed coefficient was 2.15, and the specific growth rate was 2.47. Compared with the control formula 1 (without adding lysine), the weight gain rate increased by 37%, the feed factor decreased by 31%, and the specific growth rate increased by 22%.
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