Heat-stress-resistant fermented feed for laying hen and preparation method thereof

Abstract

The invention discloses heat-stress-resistant fermented feed for a laying hen. The heat-stress-resistant fermented feed is prepared from the following raw materials: corn, soybean meal, cottonseed meal, apple pomace, chili meal, corn steep liquor sprayed corn husk, wheat bran, bacteria liquid, compound premixed feed and water, wherein the bacteria liquid is prepared from enterococcus aureus, bacillus subtilis, saccharomyces cerevisiae, brown sugar and water. The preparation method of the heat-stress-resistant fermented feed comprises the following steps: crushing the raw material, mixing the dried material, preparing the bacteria liquid, secondarily mixing the wet feed, and conducting anaerobic fermentation. The heat-stress-resistant fermented feed disclosed by the invention has the following benefits: the main essential nutrients in the fermented feed are approximate to that of complete feed for the laying hen and comprise active beneficial bacteria, gamma-aminobutyric acid, organic acid and other active factors; the feed can be added to the daily ration of the laying hen based on the rate of 5-15% to obviously improve the laying rate of the laying hen, the feed-gain ratio, the broken egg rate and the oxidation resistance, synergistically give play to multiple action of the beneficial bacteria on microecologic control to bacterial flora in the gastrointestinal tract, nerve regulation to the central nervous system by the neurotransmitter, and buffering of the organic acid to respiratory alkalosis due to high temperature, and obviously resist against the heat stress due to high temperature in summer for the laying hen.

Description

technical field [0001] The invention relates to poultry feed and a preparation method thereof, in particular to a fermented feed specially used for resisting heat stress of laying hens and a preparation method thereof. Background technique [0002] Layers have high body temperature, strong metabolism, and rich feathers. However, layers have no sweat glands. Under high temperature conditions, the excess heat generated in the body is released by evaporation and heat dissipation from the respiratory tract to balance body temperature. Therefore, high temperature has a great impact on the production performance of laying hens. The best ambient temperature for laying hens is 15-25°C, and heat stress will occur if it exceeds 25°C; if it exceeds 28°C, the harm of heat stress will be very significant. Heat stress will not only reduce the laying rate of laying hens, reduce egg weight, increase egg breaking rate, reduce the fertilization rate and hatching rate of breeding eggs, but als...

AI Technical Summary

Problems solved by technology

[0004] Adding oil, supplementing vitamins, and adjusting electrolyte balance in laying hens has become a simple conventional technology to resist heat stress in laying hens, and its effect is limited. The laying performance of laying hens will be adversely affected. The cost of using Chinese herbal medicines and acidifiers is high and the effect is not ideal. The cost of comprehensive regulation is too high to make it cost-effective and the effect is not very significant