Feed for late pregnancy of sows and feeding method

Abstract

The invention discloses feed for late pregnancy of sows and a feeding method. The feed is characterized by being prepared from the following components in parts by weight: 55 to 65 parts of corn, 15 to 25 parts of soybean meal, 5 to 10 parts of wheat bran, 1 to 2 parts of soybean oil, 1 to 2 parts of glucose, 0.5 to 1 part of table salt, 1 to 2 parts of mountain flour, 1 to 2 parts of dicalcium phosphate, 0.3 to 0.5 part of lysine, 0.4 to 0.8 part of threonine, 4 to 7 parts of dietary fiber, 2 to 4 parts of plant extract, 0.1 to 0.3 part of choline chloride and 3 to 4 parts of sow compound premix. According to the feed disclosed by the invention, when the seed is used for producing by comprehensively considering physiological characteristics of pregnancy, the oxidative stress of the late pregnancy of the sows can be alleviated, the rate of weak piglets and dead fetuses of the sows is reduced, the quantity of healthy piglets is increased and the production benefits are easy to improve;the oxidative stress of the late pregnancy can be alleviated and the pregnancy metabolism is alleviated at maximum, so that the oxidative stress of the late pregnancy of the sows is alleviated and thefetal birth health and uniformity are ensured; furthermore, certain antibiotics are replaced with the plant extract in the product, so that the addition of medicines in the feed is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of pig feed formula, and in particular relates to a sow late pregnancy feed and a feeding method. Background technique [0002] The reproductive performance of sows is the key factor that determines the production level and economic benefits of pig farms. However, there is still a significant gap between the annual productivity of sows in my country and developed countries in Europe and the United States; Denmark, an advanced pig country, has reached more than 30 heads, while the average level in my country is about 21 heads; the level of sow productivity depends largely on the number of sows born and the survival rate of piglets. [0003] In recent years, with the development of pig breeding in my country, the litter size of sows and the weight of newborn piglets have greatly increased, which means that sows need to carry out stronger material metabolism during pregnancy; , the level of reactive oxidative sp...

AI Technical Summary

Problems solved by technology

[0005] The impact of oxidative stress on the reproductive performance of sows is mainly reflected in the decline of sows' farrowing performance, decreased lactation ability, decreased survival rate of piglets, and poor health of sows; excessive free radicals will attack oocytes, hinder sperm-egg integration, Delaying the implantation of fertilized eggs and mitosis before implantation, delaying embryo implantation, inhibiting embryo development, etc., thereby reducing the litter size of sows, increasing the proportion of weak piglets and stillbirths, and reducing the survival rate of newborn piglets; excessive free radicals will increase The body's metabolism burdens and continuously attacks the body's biological macromolecules and cells, especially mammary gland cells, resulting in oxidative damage, reducing the ability of mammary gland cells to absorb nutrients, increasing inflammatory factors in milk, and reducing the content of immunoglobulin in milk, thereby affecting mammary glands The development and function of mammary gland tissue are healthy, which leads to the decline of lactation performance of sows, thereby reducing the growth rate and survival rate of suckling piglets