Feed additive for improving anti-stress capability of large yellow croakers

A feed additive, large yellow croaker technology, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of accelerated popularization, easy corruption, and easy occurrence of diseases.

CN104705532AInactive Publication Date: 2015-06-17OCEAN UNIV OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-06-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention aims to provide a feed additive for improving the anti-stress capability of large yellow croakers. The feed additive comprises procyanidine and a vitamin C additive, wherein the mass ratio of procyanidine and the vitamin C additive is preferably (0.5-2):1. The additive amount of procyanidine in the anti-stress additive of large yellow croakers is 100-300mg / kg, and the additive amount of vitamin C phosphate is 500-600mg / kg. The procyanidine and the vitamin C additive combined in the proportion can be used for improving the anti-stress capability and anti-trawling stress capability of the large yellow croakers and does not generate obvious side effects on livers of large yellow croakers.
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Description

technical field

[0001] The invention belongs to the technical field of aquatic feed preparation, and in particular relates to a feed additive for improving the anti-stress ability of large yellow croaker. technical background

[0002] Large yellow croaker is the marine fish with the largest cage culture output in my country. In 2013, the total national output reached 105,000 tons. At present, the farming of large yellow croaker is still mainly fed with chilled fish, but the popularity rate of compound feed has reached 20%. Especially in recent years, the nutrition research of large yellow croaker has been systematically deepened, the special compound feed for large yellow croaker has been successfully developed and put into the market, and the use of compound feed has been more and more recognized by the market. Coupled with the unstable source of chilled fish, large price fluctuations, inconvenient use, easy corruption and breeding of diseases, waste of resources, and dama...

Examples

Embodiment 1

[0023] Studies have shown that the vitamin C requirement of large yellow croaker is 60-75 mg / kg feed, taking the specific growth rate (SGR) as the evaluation index.

[0024] 1# feed is the amount of VC phosphoric acid ester (283mg / kg) that just meets the growth demand of large yellow croaker, and the treatment group that the addition amount of proanthocyanidins is 0; / kg), the proanthocyanidin addition amount is 0 treatment group; the combination of 3# feed proanthocyanidin and vitamin C phosphate is (100OPC+283VC) mg / kg, wherein the addition amount of VC phosphate is the growth demand; 4# feed proanthocyanidin The combination with vitamin C phosphate is (100OPC+566VC) mg / kg, and the amount of VC phosphate added is twice the growth requirement. Wherein the actual amount of VC added in 283mg / k VC phosphate is 69mg / kg, and the actual amount of VC added in 566mg / k VC phosphate is 138mg / kg. With the above-mentioned experimental feed (see Table 1 for details), a breeding test was ...