Experiment 1: 20 anestrus Landrace-Yorkshire gilts and 20 anestrus Landrace-Yorkshire weaned sows were treated with PMSG and LRH-A3 to in.
本试验选取山东省海阳生隆种猪场长白与大约克杂交一代后备、经产母猪和纯种长白经产母猪为研究对象,利用孕马血清促性腺激素(PMSG)及促排卵3号(LRH—A3)对长大杂交一代后备、经产乏情母猪进行诱发发情(试验Ⅰ)、利用促排卵3号(LRH—A3)对正常发情的纯种长白经产母猪提高产仔数(试验Ⅱ)研究。