Stage feeding method for period of hybridization to delivery of sow

Abstract

A stage feeding method for period of hybridization to delivery of a sow comprises five stages, namely, (1) implantation period of germ cells; (2) constitution recovering period; (3) mammary gland developmental period; (4) fast growing period of fetus; and (5) parturient period. In the method, feeding of low protein feed is performed in the first stage, the amount of the feed is reduced, and the delivery rate is increased by 10%; the amount of the feed is increased in the second stage, the weight of the sow is increased by 10%, and the emaciated constitution of the sow after the hybridization is improved; the amount of the feed is reduced in the third stage, the weight of the sow can be prevented from increasing too much, mammary gland development is facilitated, and the following milk production amount and quality is improved; in the fourth stage, low protein feed is changed into high protein feed, the food intake amount is increased, and fast growing of fetus is facilitated; and feeding is reduced in the fifth stage, stomach indigestion of the sow after delivery is prevented, and influence to the constitution of the sow cannot be influenced. Through precise management of the five stages, the delivery rate of the sow is improved by 10%, the sow mortality rate is 15%, and after ablactation of piglets, the weight of the piglets is increased by 15% compared with the piglets fed in the prior art.

Description

technical field [0001] The invention belongs to the technical field of sow feeding during pregnancy, in particular to a staged feeding method for sows after mating and giving birth. Background technique [0002] In the process of raising pigs, the most important thing is the period from successful sow mating to giving birth, which generally lasts for about 112 days. Effective management during this period will help increase the birth rate of sows and reduce the The elimination rate is very important. [0003] At present, farmers generally divide this time period into two stages, which are about 90 days in the early stage and about 22 days in the later stage. The former is called the pregnancy stage, and the latter is called the waiting stage. The feeding of pigs remains unchanged, and the composition and dosage of the feed are the same as usual. During the waiting stage, the composition of the feed remains unchanged, but the dosage has a large increase. In the existing trea...

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Problems solved by technology

[0003] At present, farmers generally divide this time period into two stages, which are about 90 days in the early stage and about 22 days in the later stage. The former is called the pregnancy stage, and the latter is called the waiting stage. The feeding of pigs remains unchanged, and the composition and dosage of the feed are the same as usual. During the waiting stage, the composition of the feed remains unchanged, but the dosage has a large increase. In the existing treatment methods, the ratio of the feed is unscientific, which makes the mother Pigs gain weight rapidly, resulting in unreasonable fat shape, which is not conducive to fetal growth, but also increases the dystocia rate, and it is difficult for sows to recover after giving birth. In severe cases, sows will be eliminated and can only be slaughtered as meat pigs

The elimination rate of pregnant sows raised by traditional methods is as high as 24-30% after giving birth. If the training fee of each sow is 10,000 yuan, the income after elimination can only be about 2,000 yuan. It can be seen that the loss of farmers is very huge. of

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