提高种猪群体生产力的对策
Technical Advisor for Animal Husbandry（2007）
Abstract
<正>1母猪方面1.1保持合理的母猪群体年龄结构母猪群内年龄结构主要依据母猪的利用年限而定。一般猪种的母猪繁殖高峰为第3～8胎,第9胎及9胎以后产仔数逐胎减
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