However,inbreeding intensity of stud boar had not distinct effect on reproductive performance.
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The study showed that parity, birth month, backfat thickness had significant effect on reproductive performance of sows.
表明胎次、产仔月份、背膘厚度对母猪繁殖性能有较大影响。
There is strong evidence that age, weight and smoking impact on general health and adversely on reproductive performance.
有明显的证据证明年龄、体重和吸烟影响全身健康和生育能力。
The objective of this study was to evaluate effects of partial substitution of concentrate with ryegrass on reproductive performance in Changjia sows.
用青绿饲料黑麦草部分替代精料饲喂长嘉母猪，研究替代后对母猪繁殖性能的影响。
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