Method for improving estrus breeding rate of replacement gilts

Abstract

The invention provides a method for improving an estrus breeding rate of replacement gilts. The replacement gilts are bred by adopting large pigsties, each pigsty has 6-8 gilts, and self-help feedingis used in the whole process until breeding is performed, wherein feed comprises the following components in parts by weight: 45-60 parts of corn, 5-10 parts of wheat, 10-20 parts of soybean meal, 1-3parts of fish meal, 1-5 parts of soybean oil, 0.5-1 part of stone powder, 0.5-1.5 parts of calcium hydrogen phosphate, 0.3-0.5 part of betaine, 0.02-0.05 part of soybean isoflavone, 0.01-0.05 part ofcentipedes, and 0.01-0.02 part of solanum nigrum. The method provided by the invention can reduce an estrus interval and increase a farrowing rate and litter size of gilt.

Description

technical field [0001] The invention relates to a method for raising pigs, in particular to a method for increasing the mating rate of gilts in estrus. Background technique [0002] With the rapid development of large-scale, standardized and modern pig farming, pig breeds such as Changbai and Large White have gradually become the main pig breeds raised in large-scale pig farms due to their good growth and meat production performance, but these pig breeds themselves The low performance of anti-stress and disease resistance has seriously affected its normal production performance, and has become an important factor restricting the production efficiency of modern pig farms. The reproductive performance of sows is affected to varying degrees by genetic selection, nutrition, feeding management, environment, diseases and other aspects. Improving the reproductive performance of sows at different stages can directly improve the economic benefits of pig farming. However, in pig prod...

AI Technical Summary

Problems solved by technology

However, in pig production, many pig farms lack an in-depth understanding of the reproductive characteristics of gilts, and mistakenly feed gilts according to the nutritional standards and feeding methods of growing and finishing pigs, resulting in a large number of first-born sows with reproductive disorders

In addition, modern breeding methods also cause sows to be in a state of stress for a long time, and the incidence of reproductive endocrine skills disorders and reproductive organ diseases is on the rise, which aggravates the reproductive barriers of sows, and long-term anoestrus, pseudoestrus or Abnormal estrus, low pregnancy rate or infertility, low mating and farrowing rate of pregnant sows, small number of live piglets, low healthy piglet rate, low lactation ability of lactating sows, oligogalactia or physiological agalactia and other symptoms, and thus affect Traits such as survival rate and weaning weight of suckling piglets

Diseases such as reproductive disorders make sows in a non-productive state for a long time, which reduces the overall reproductive performance of the herd, seriously affects the economic benefits of large-scale pig farms, and causes serious waste of resources

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