Feed additive for improving reproductive capacity of boar and preparation method thereof

Abstract

The invention discloses a feed additive for improving the reproductive capacity of a boar. The feed additive comprises the following raw materials in percentage by weight: 40 to 50 percent of epimedium, 8 to 10 percent of cynomorium songaricum, 8 to 10 percent of codonopsis pilosula, 8 to 10 percent of angelica sinensis, 8 to 10 percent of medlar, 0.5 to 1 percent of vitamin A, 0.1 to 0.2 percentof vitamin D3, 1 to 4 percent of vitamin E, 0.1 to 0.3 percent of vitamin B2 and the balance of zeolite powder. A preparation method for the feed additive comprises the following steps of: mixing the epimedium, the cynomorium songaricum, the codonopsis pilosula, the angelica sinensis and the medlar; smashing a mixture to a particle size of between 25 and 40 microns; adding the vitamin A, the vitamin D3, the vitamin E, the vitamin B2 and the zeolite powder; and mixing uniformly. The feed additive prepared by the method has the characteristics of remarkable improvement on boar sexual desire, ejaculatory amount, sperm concentration, survival time and oestrum conception rate without any adverse effect, less additive amount, low cost and obvious effect.

Description

technical field [0001] The invention relates to a feed additive, in particular to a feed additive for improving the reproductive capacity of boars and a preparation method thereof Background technique [0002] The quality of boars in production directly affects the reproductive ability of sows. Currently, in the breeding industry, there are factors such as high frequency of use of boars, unreasonable nutrition, many diseases, and poor breeding environment, which lead to decreased libido of boars, weakness in climbing, and poor mating time. Sexual reflexes are slow, the amount of ejaculation decreases, the quality of semen deteriorates, and even reproductive performance disorders such as extremely rare sperm and no sperm appear, resulting in a low breeding conception rate and a decline in economic benefits, which seriously affects the productivity of the pig farm. There are roughly three types of reproductive dysfunction in boars: loss or loss of libido; libido, but not climb...

AI Technical Summary

Problems solved by technology

Some scholars (Research on the Effect of Chinese Herbal Medicine Compound Feed Additives on the Quality of Boar Semen. Liu Chousheng. Heilongjiang Animal Reproduction, No. 1. 1994) used Chinese herbal medicine to treat boar reproductive dysfunction. , slow drug effect, serious waste and poor palatability, etc., which cause boars to eat less or refuse to eat, and the desired effect cannot be achieved

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