Jubb T F, Abhayaratne D, Malmo J, Anderson G A
University of Melbourne, Department of Veterinary Clinical Sciences, Princes Highway, Werribee, Victoria.
Aust Vet J. 1990 Oct;67(10):359-61. doi: 10.1111/j.1751-0813.1990.tb07402.x.
At 11 to 13 d after insemination, 1028 dairy cows on 19 farms were given an intramuscular injection of 10 micrograms of the GnRH analogue buserelin. Their reproductive performance was compared to 1022 control cows receiving a placebo. The GnRH analogue-treated cows had fewer short interoestrous intervals compared to the control cows, but there were no significant differences in pregnancy rates to either the insemination preceding or following treatment, in calving to conception interval, or to percent pregnant by the end of mating. There were no differences between treatments in herds of high, average or low pregnancy rate, in 2-year-old cows or cows greater than 2-years-old and in cows calved 40 d or less, or greater than 40 d. The use of 10 micrograms of the GnRH analogue, buserelin, 11 to 13 d after insemination, cannot be recommended as a method of improving reproductive performance in dairy herds.
在授精后11至13天，对19个农场的1028头奶牛进行了肌肉注射10微克促性腺激素释放激素（GnRH）类似物布舍瑞林的处理。将它们的繁殖性能与接受安慰剂的1022头对照奶牛进行比较。与对照奶牛相比，接受GnRH类似物处理的奶牛发情间期较短，但在处理前或处理后的授精妊娠率、产犊至受孕间隔或配种结束时的妊娠百分比方面没有显著差异。在高、中、低妊娠率的牛群中，在2岁奶牛或大于2岁的奶牛中，以及在产犊后40天及以内或大于40天的奶牛中，处理之间没有差异。授精后11至13天使用10微克GnRH类似物布舍瑞林，不能作为提高奶牛群繁殖性能的一种方法推荐。
