oestrum
英
美
n. 动情期
双语例句
- The rate of cow's oestrum fecundation is one key factor of cattle's breeding rate.
奶牛情期受胎率是影响奶牛繁育率的重要因素之一。 - Eleven estrus and inducing estrus bitches were inseminated three times after an interval of one day during an oestrum. Two bitches were pregnant and then delivered seven young beagles 61-62 days after the first artificial insemination.
对11只自然发情和诱导发情犬进行鲜精授精，每只发情母犬隔天连续授精3次，结果有2只母犬成功受孕并于第一次授精后的61-62天自然分娩产下7只幼仔。