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华国锋同志在视察北京实验猪场时号召我们:“一定要重视科学研究工作,要提高产仔率,成活率,增肉率”。为提高母猪的繁殖力,特开展了本课题的试验研究。 一、研究目的 为提高母猪的繁殖力,就需要从增加母猪的年平均产仔窝数、每胎产仔数、断乳重等方面着手研究,其中在增加母猪的年平均产仔窝数方面,国际上近年来的主要研究动向是仔猪
Comrade Hua Guofeng called on us when he visited Beijing experimental pig farms: “We must attach importance to scientific research work to raise the birth rate, survival rate and meat increase rate.” In order to improve the sow’s fertility, carried out the pilot study of this topic. First, the purpose of the study In order to improve the fertility of sows, we need to increase the number of sows from the average annual litter size, litter size per litter, weaning weight and other aspects of research, which increase sows annual average litter size In terms of population, the main research trend in recent years in the world is piglet