The cows are artificially inseminated .
这些母牛是人工授精的。
1.播(种),栽
2.使受孕,授精
1.to put sperm into a woman or female animal in order to make her pregnant
1.The only use for males is to inseminate the queen; afterwards they are either driven out of the nest or killed.
雄蚁唯一的作用是使蚁后受精，之后它们就被驱逐出蚁巢或是被杀死。
2.Marsh Hanson and Jay Wilson were lucky to find their surrogate friend and to be able to inseminate her privately in their home.
MarshHanson和JayWilson很幸运地找到了他们的代孕朋友，并能够私下在他们的家里完成授精的过程。
3.The young Severino would watch with fascination while his uncle, a veterinarian, would artificially inseminate cows on surrounding farms.
小时候，当他做兽医的叔叔在周围的牧场里给母牛做人工授精时，安蒂诺里便饶有兴趣地在一旁观看。
4.Females, in other words, would rather choose which males inseminate them.
换句话说，雌性更愿意选择那些让它们授精的雄性。
5.For fathers it is more of a prison sentence, because it restricts a male's ability to inseminate lots of females at relatively low cost.
而对父性们来讲，这无疑于一种监禁，因为他们本可以不遗余力地让更多的雌性受精而现在却限制了他们的这种能力。
6.The way in which males can most effectively do that is to inseminate a number of females.
要达到这个目的，雄性最有效的方式是向许多雌性受精。
7."With semen dilution you can get one male to inseminate 20 to 30 females, " says Murray Bakst, a poultry reproduction expert at Beltsville.
“通过精液稀释液，一只雄火鸡可以使20—30只雌火鸡受孕，”穆雷·巴克斯特说，一位贝兹维尔的禽类繁殖专家。
8.High Yield Technique Summing-up on Rice Which Put Straw into Field for Four Years and Inseminate Disciplinarian for Three Years
水稻四年秸秆还田三年摆栽高产总结
9.Study on the Inseminate Rate of Xuan Feng Yellow Hen Inseminated at Different Time
不同输精时间对宣凤黄鸡受精率影响的研究
10.Test Disquisition on Rice Inseminate in Installments at Cold-field
寒地水稻分期播种试验研究