Preparation method of feed additive with functions of improving weight gain and immunity of broiler chickens

Abstract

The invention relates to the fields of poultry animal nutrition and feed, and in particular relates to a preparation method of a feed additive with functions of improving weight gain and immunity of broiler chickens. The method comprises the following steps: taking 10-15 parts by weight of pine needles and 15-30 parts by weight of echinacea, drying at the temperature of 65 DEG C until the weight is constant, crushing, and screening by a 40-mesh sieve; and taking 30-40 parts by weight of bacillus subtilis, 15-25 parts by weight of enterococcus faecium and 10-15 parts by weight of carrier, evenly mixing the bacillus subtilis, the enterococcus faecium and the carrier with the pine needle powder and the echinacea powder to obtain the feed additive. The feed additive is simple in components, environment-friendly, free from toxic and side effects, less in consumption, low in price, remarkable in effect and simple in production and use methods; the actual feeding test proves that the feed additive is capable of remarkably improving the daily weight ratio of the broiler chickens, reducing the feed conversion ratio, remarkably increasing the number of T-lymphocytes of the chickens and the feed conversion rate, improving the growth performance of the broiler chickens and the immunologic function of the broiler chickens, is free from residue in the bodies of the broiler chickens and does not influence the meat quality of the chickens.

Description

technical field [0001] The invention relates to the technical field of feed additives for poultry animals, in particular to a preparation method of a feed additive for improving the weight gain and immunity of broilers. Background technique [0002] With the improvement of people's living standards, the consumer demand for meat products is increasing. Chicken, as a traditional tonic food material trusted by ordinary people and the basic meat material in the fast food industry, has a more tense supply and demand relationship, which has driven The rapid development of broiler farming industry. In order to improve production efficiency and reduce production costs, enterprises often add various feed additives to broiler feed. However, most of the feed additives currently on the market contain antibiotics and hormone drugs to speed up the growth of broilers and prevent diseases. These antibiotics and Hormones will not only destroy the ecological balance between the chicken body ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a feed additive that improves the weight gain and immune function of broilers in view of the problems that feed additives containing antibiotics and hormone drugs are generally added in the current broiler raising process, which destroys the ecological environment and endangers human health.

Images