【摘要】 本研究测定了 2 5头经产长白母猪的平均乳头直径和仔猪在哺乳期的生长表现。结果表明 ,直径为1 .4～ 1 .5 cm的粗乳头母猪 ,其所带仔猪固定乳头的时间较长 (2 .41 d) ,吸双乳头的仔猪数也较多 (2 .60头 /窝 ) ,并与其他两组仔猪 (母猪乳头直径分别为 1 .0 0～ 1 .2 0 cm和 1 .2 0～ 1 .40 cm)出现了显著的差异 (P <0 .0 5 ) ;同时 ,仔猪在哺乳期增重方面也表现出一定差异 (P >0 .0 5 ) ,粗乳头母猪所带的仔猪在 2 1日龄重和 45日龄重等性状上普遍较低。相关分析表明 ,母猪平均乳头直径与 2 1日龄、 45日龄窝重两性状间存在较强的相关性 (P <0 .0 5 )更多还原

【Abstract】 The determination of teats diameter of 25 sows and growth manifests of piglets in suckling period were carried out in this paper.The results showed that the wide nipple sow (1 40～1 50 cm) had a long time in fixing teat and more piglets of suckling doubles than others.There was no significant difference in gains of sucking piglets (P>0 05).The piglet’s weight of wide teat’s sow were lower than that of others in 21 days and 45 days.The result also showed that there existed significant correlation between the nipple diameter and the litter weight of 21 days and 45 days.更多还原