Institute oj Zoology; Academia Sinica
外激素促绵羊同期发情作用的研究

Experiments were designed to examine the influences of pheromones on est-rous cycle of sheep in Xinjiang. We presume that the pheromone is probably a potent stimulus and lead to results in a synchronization of estrus of sheep.391 females were divided into two flocks grazing freely in the pasture. Pheromone was taken from rams and sprayed into one group. Another as a control group sprayed with water was used. In experimental fleck there were 7.0±0.85 cycles and 4.3 ± 0.63 cycles in the control group. The dif...