Pearse B H, McMeniman N P, Dowsett K F
Arid Zone Institute, Longreach, Qld., Australia.
Reprod Fertil Dev. 1991;3(1):109-12. doi: 10.1071/rd9910109.
In each of three experiments, thirty seasonally anoestrous Border Leicester ewes were fed on a maintenance ration of oaten chaff. Fifteen of them were given a supplement of 500 g lupin grain per head per day. The ewes were treated with 10 mg follicle stimulating hormone (Expt 1), 600 I.U. pregnant mare serum gonadotrophin (Expt 2) and either 150 or 300 micrograms gonadotrophin releasing hormone (Expt 3) to determine whether the ovaries and/or the anterior pituitary were capable of responding to the nutrient status of the animals and influencing ovulation rate. In each experiment, the number and size of corpora lutea and follicles in the lupin-supplemented and -unsupplemented groups were similar. It was concluded that the mechanism by which lupins increase the ovulation rate is probably neural and not a result of direct effect on either the pituitary or the ovaries.
在三个实验中的每一个实验里，30只季节性乏情的边境莱斯特母羊以燕麦糠维持日粮饲养。其中15只母羊每天每只额外补充500克羽扇豆谷物。给这些母羊分别注射10毫克促卵泡激素（实验1）、600国际单位孕马血清促性腺激素（实验2）以及150微克或300微克促性腺激素释放激素（实验3），以确定卵巢和/或垂体前叶是否能够对动物的营养状况做出反应并影响排卵率。在每个实验中，补充羽扇豆组和未补充羽扇豆组的黄体和卵泡的数量及大小相似。得出的结论是，羽扇豆提高排卵率的机制可能是神经性的，而非对垂体或卵巢直接作用的结果。
