排卵率是限制母猪窝重的主要因子，在配种前提高采食量能显著性地增加排卵效率。
Ovulation rate is the principle factor limiting litter size in gilts and increasing the level of feed intake prior to mating will significantly increase ovulation rate.
选取4634头次不同配种季节奶牛的原始配种资料，统计分析气温和湿度对奶牛受胎率的影响。
Based on 4634 cows initial breeding data form different breeding seasons in the climatic south subtropics. The influence of temperature and humidity on concept rate(CR) of cows has been analysis.
应用推荐