| abstract |
The invention discloses a wintering feed for northern grass carp and a preparation method thereof. The wintering feed for northern grass carp comprises 2-5 parts of fish meal, 3-7 parts of chicken meal, 10-30 parts of soybean meal, 10-30 parts of rapeseed meal and 10-30 parts of cotton meal. servings, 10-20 servings of wheat, 4-8 servings of corn, 4-8 servings of bran, 1-5 servings of yeast hydrolyzate, 2-4 servings of grape seeds, and 1-3 servings of premix. Through the screening and optimization of the northern grass carp overwintering feed materials and their proportions, the present invention uses yeast hydrolyzate to repair intestinal damage, improves the immunity of the fish body, and at the same time improves the digestion and absorption rate of food in the intestinal tract; the preparation process parameters are optimized to finally obtain a Species of northern grass carp overwintering feed. Using the northern grass carp overwintering feed obtained by using the technical solution provided by the invention to feed grass carp for more than 30 days, the survival rate of grass carp is over 95%, the body weight loss is reduced to within 10%, the cost is saved by 1-1.5 yuan/kg grass carp, and it is the best grass carp overwintering feed. Development provides data support. |