季节、胎次对大白母猪繁殖性能的影响

Effects of Season and Parity on Reproductive Performance of Large White Sows

分析我国生猪养殖水平,每头母猪每年平均产16~18头仔猪,若每头母猪每年多生产1头仔猪,会产生巨大的经济利益。同时母猪繁殖性能也是影响养殖场经济效益的重要因素,是衡量养猪场生产水平高低的重要指标,而产仔数是繁殖性能最重要的代表指标,也是制约我国生猪养殖规模的重要的一个因素。

To analyze the level of pig breeding in China,each sow produces an average of 16 to 18 piglets per year,if each sow produces one more piglet per year,it will produce great economic benefits.At the same time,the reproductive performance of sows is also an important factor affecting the economic benefit of the farms,and it is an important index to measure the production level of the farms,and the litter size is the most important representative index of the reproductive performance,it is also an important factor that restricts the scale of pig breeding in China.