【摘要】 本文测定了双×沙、杜×沙、长×沙三个杂交组合的繁殖性能。结果表明 ,加系双肌臀大约克、美系杜洛克与沙子岭母猪杂交表现出较好的繁殖力 ,产仔多 (1 3 .2 5～ 1 4.0 0头 ) ,6 0日龄窝重大 (1 59～ 1 6 2 kg) ;而丹系长白与沙子岭母猪杂交 ,产仔数较少 (1 1 .1 7头 ) ,6 0日龄窝重也较小 (1 3 6 .1 9kg) ,仔猪适应性差 ,抗病力弱更多还原

【Abstract】 The reproductive performances of three cross combinations [Yorkshire()×Shaziling(♀), Duroc()×Shaziling(♀) and Landrace()×Shaziling(♀)] were examined in this study. The results showed that higher reproductive performances were got by means of crossing Shaziling sow with Yorkshire or Duroc, the combination had bigger litter size (13.50~14.00) and higher litter weight at 60 days age (159~162 kg); but lower reproductive performances in the combination of Shaziling sow with Landrace: Smaller litter size (11.70), lower litter weight at 60 day age (136.19 kg), Less adaptability and less disease resistance. There were no differences among three cross combinations in reproductive traits (P>0.05).更多还原