“长大”二元杂交猪繁殖性状的杂交优势观察

Observation of Heterosis in Reproductive Character of Chang Da Binary Cross Breeding Pig

长白公猪与大白母猪杂交 ,配套生产长大父母代种母猪 ,是国内众猪场普遍采用的配套杂交生产模式。大白母猪与长白公猪杂交配种 ,较大白纯繁 ,在繁殖性状上表现出一定的杂交优势。本试验对这两种组合进行对比观察 ,分析了其在繁殖性状上的杂交优势 。

It was cross-breeding production pattern used generally in many pig farms that the parental broad sows were produced by cross-breeding of Changbai boars and Dabai sows.compared with pure breeding of Dabai pig,cross-breeding of Dabai boars and Changbai sows showed certain heterosis in reproductive character.The experiment conducted the contrast observation of the two combinations and analyzed their heterosis in reproductive character,and hoped to direct production of the pig farms.