Feed additive for improving pregnancy rate of sows and preparation method thereof

Abstract

The invention discloses a feed additive for improving the pregnancy rate of sows and a preparation method thereof. The feed additive consists of the following components in part by weight: 30 to 40 parts of Chinese taxillus twig, 20 to 30 parts of Chinese dodder seed, 5 to 8 parts of astragalus, 5 to 8 parts of malaytea scurfpea fruit, 0.5 part of vitamin A, 2 parts of vitamin E, 0.8 part of folic acid, and the balance of zeolite powder. After being mixed together, the Chinese taxillus twig, the Chinese dodder seed, the astragalus and the malaytea scurfpea fruit are subjected to cell-level fine crushing to make the grain diameter thereof to be 25 to 40 microns. As medicament effects of every component of the feed additive coordinate and interact, the feed additive has the advantages of maintaining health of the organisms of the sows, increasing the nidation of zygotes, reducing the stillbirth rate, increasing the number of born alive piglets and healthy piglets, and obviously increasing the pregnancy rate of thesows after application, along with low addition volume, good effect, no residue, and no toxic or side effects.

Description

technical field [0001] The invention relates to a feed additive, in particular to a Chinese herbal medicine compound feed additive capable of improving the pregnancy rate of sows. Background technique [0002] According to statistics, in 2009, my country had more than 49 million reproductive sows, ranking first in the world. However, the reproductive performance of sows in my country is low. The average number of births per sow in China is 1.7 per year, while the United States reaches 2.28 births, North America is 2.42 births, Brazil is 2.5 births, and Japan is 2.43 births; There are only 17 weaned piglets in my country, 20 in the United States, 23.26 in North America, 25.96 in Brazil, and 24.92 in Japan; the survival rate of piglets is also relatively low, 84% in my country and 95% in the United States. The reproductive performance of sows is affected by many factors such as genetics, nutrition, environment, and health status. We believe that the key to improving the pregna...

AI Technical Summary

Problems solved by technology

Some scholars have used Chinese herbal medicine to increase the pregnancy rate of sows. Although some results have been achieved, there are problems such as high dosage, slow drug effect, serious waste and poor palatability, which cause pigs to eat less or refuse to eat, and fail to achieve the desired effect. Effect

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