Sow feed used in gestation period and breeding method of sow

Abstract

The invention discloses a sow feed used in a gestation period and a breeding method of a sow. The sow feed comprises a feed before gestation, a feed after gestation and a feed for a lactation period. By virtue of the feed and the breeding method, the feed intake of the sow at the lactation period is increased, so that the intake of nutrients by the sow at the lactation period is increased; the reproductive performance of the sow is improved; the vitamin nutrient requirements are met; the health levels of a pregnant sow and embryos are improved; the development of mammary gland of the pregnant sow is improved; the death rate of the embryos is significantly lowered; and the birth weight of piglets is improved.

Description

technical field [0001] The invention relates to the technical field of feed for pregnant sows, in particular to a feed for pregnant sows and a feeding method. Background technique [0002] The core nutritional components of compound feed for animals are usually composed of various trace elements, vitamins and feed additives, usually called additive premixed feeds, including compound premixed feeds, trace element premixed feeds, vitamin premixed feeds, traditional pregnant mothers The premixed feed for pigs is usually a compound premixed feed, which is a mixture of trace elements, vitamins and feed additives. Not only does it not consider the chemical reaction between the trace elements and vitamins in the compound premixed feed, which will reduce the product effect. It also does not consider the different nutritional needs of pregnant sows. The quality of pregnant sows not only affects the survival rate of litters and birth weight, but also affects the performance of multipl...

AI Technical Summary

Problems solved by technology

[0002] The core nutritional components of compound feed for animals are usually composed of various trace elements, vitamins and feed additives, usually called additive premixed feeds, including compound premixed feeds, trace element premixed feeds, vitamin premixed feeds, traditional pregnant mothers The premixed feed for pigs is usually a compound premixed feed, which mixes trace elements, vitamins and feed additives together, not only does not consider the chemical reaction between the trace elements and vitamins in the compound premixed feed, which reduces the product effect, It also does not consider the different nutritional needs of pregnant sows. The quality of pregnant sows not only affects the survival rate of litters and birth weight, but also affects the performance of multiple births in the future. Therefore, the nutrition of pregnant sows is particularly important. The farm is still feeding pregnant sows with conventional compound premixed feed, which leads to poor development of mammary glands in pregnant sows, which in turn increases the mortality rate of piglets after birth, reduces the weaning weight of piglets, and increases the weaning stress of piglets

[0003] The nutrient intake of sows during lactation has a significant impact on the growth and survival rate of piglets, the litter size of the next litter, and the interval between weaning and estrus of sows. However, due to the low feed intake of sows during lactation, the nutrient intake Insufficient income, resulting in generally low reproductive capacity of sows, which directly affects the economic benefits of large-scale pig farms