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不同补饲量对放养地方黑毛猪生长速度和料肉比的影响

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摘要 研究金寨地方黑毛猪在生态放养条件下,不同精料补饲量对黑毛猪生长速度和料肉比的影响,为提高该品种猪生态养殖效益奠定基础。选取初始体重在20~35 kg的健康、阉割金寨黑毛猪57头,随机编入玉组(26头)、Ⅱ组(17头)和Ⅲ组(14头)进行放养,分别按1.00、1.25、1.50 kg/头·天补饲精料。结果表明院放养初期(0~20 d)和中期(20~40 d),各组平均体重和平均日增重相近(P〉0.05);放养60 d时,Ⅱ、Ⅲ组的平均体重显著高于玉组(43.83±1.27,49.64±1.14,50.14±2.24,P〈0.05);放养后期(40~60 d)Ⅱ、Ⅲ组平均日增重极显著高于玉组(P〈0.01);放养初期,Ⅰ组的料肉比较Ⅱ组、Ⅲ组低,但差异不显著(P〉0.05);放养中期,Ⅱ组的料肉比显著低于Ⅲ组(P〈0.05);放养后期,Ⅱ组的料肉比显著低于玉组和Ⅲ组(P〈0.05)。可见,放养条件下,40 kg以下的金寨黑猪补饲量以1.0 kg/d为宜,40~50 kg的猪补饲量以1.25kg/d为宜。
出处 《现代农业科技》 2016年第6期243-243,247,共2页 Modern Agricultural Science and Technology
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