the maximum economic rate of N fertilizer applicat
the maximum economic rate of N fertilizer application
average concentration rate
concentration-rate curve
conception rate
受胎率
怀胎率
阴道电阻
情期受胎率
繁殖率
受配率
受孕率
第一情期受胎率
妊娠率
Conception rate at first heat
Conception rate in estrous
conception rate in estrus period
Conception rate of estrus
conception rate of first estrus
energy-concentration-rate
Estrous rate and conception rate
How to improve the cow conception Rate
industrial concentration rate
market concentration rate
Rate rate of blowing out