Special feed additive for pregnant sows as well as preparation method and use method of special feed additive

Abstract

The invention discloses a special feed additive for pregnant sows. The special feed additive is prepared from the following raw materials in parts by weight of 120-150 parts of composite dietary fibers, 35-65 parts of macleaya cordata, 20-50 parts of cortex pseudolaricis, 30-60 parts of thallus laminariae, 25-55 parts of cowherb seeds, 60-90 parts of sugar beet pulp, 55-85 parts of bran coat, 75-105 parts of bran, 15-35 parts of cordyceps militaris and 20-30 parts of composite probiotics. The feed additive can improve the colostrum nutrition structure of the sows, increase the litter size andlive litter size of the sows, and improve the immunity and weaning litter weight of piglets; and anti-nutritional factors in the feed are degraded by utilizing reproduction and metabolism of the probiotics, and trace high-activity substances are generated, so that the nutritional value of the feed is improved, the utilization rate of the pregnant sows on the feed and the body immunity are improved, the production performance of the sows is improved, antibiotics are effectively replaced, no antibiotics or harmful chemical substances are added, and green and healthy breeding is realized.

Description

technical field [0001] The invention belongs to the technical field of feed production and processing, and in particular relates to a special feed additive for pregnant sows and a preparation method and application method thereof. Background technique [0002] my country is a big pig breeding country, and the number of breeding sows accounts for more than 50% of the number of breeding sows in the world. However, compared with foreign developed countries (such as Denmark, Canada, etc.), there are still large In addition, the benefits of pig breeding depend to a large extent on the reproductive performance of sows, so improving the reproductive performance of sows will greatly promote the development of my country's pig breeding industry. The reproductive traits of sows belong to low heritability traits, and the heritability of most traits (such as reproductive traits such as litter size) is below 0.1, indicating that the main factors affecting the reproductive performance of s...

AI Technical Summary

Problems solved by technology

However, at present, the fiber source of pregnant sows is mainly provided by bran, but the bran fibers are tightly combined with lignin in the cell wall, and the physical and chemical properties of the fibers cannot be fully utilized; there is also a lignocellulose additive on the market that provides Fiber source, this kind of fiber is obtained through wood processing, cellulose is completely separated from the cell wall, so it has good water absorption and expansion, and has a certain effect on increasing the satiety of sows; lignocellulose is all composed of insoluble fiber, The degree of fermentation is low, and the degree of improvement to the intestinal flora of sows is limited, so the effect on regulating the intestinal health of sows is limited; soluble fiber has good fermentability, but its usage is limited due to high viscosity and high gas production

[0009] Moreover, since most of the current feeds increase the resistance of animals by adding antibiotics, the animals develop drug resistance, and many pathogenic microorganisms appear in the metabolites, which greatly affects the environment and even reduces the quality of livestock and poultry products.

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