不同饲养方式对猪生长性能影响的研究

Effects of Different Raising Patterns on Performance of Growing Pigs

分别选择斯格杂交商品猪60头,同时开展17～40kg体重阶段的大群饲养(20头/栏)与小群饲养(10头/栏)对比试验,34～60kg体重阶段的自由采食(10头/栏)与分餐饲喂(10头/栏)对比试验,试验期40d。结果表明,大群饲养组生长速度比小群饲养组低4.95%(P>0.05),其日采食量减少9.72%(P>0.05),饲料转化效率提高5.45%(P>0.05),头均获毛利减少0.14元;自由采食组生长速度比分餐饲喂组提高13.3%(P<0.05),其日采食量增加16.87%(P<0.05),饲料转化效率降低3.14%(P>0.05),头均获毛利增加11.31元。

This study compared effects of tow group sizes（20 pigs per peng and 10 pigs per peng, body weight from 17 to 40 kg） and tow feeding methods（free feeding vs rationed feeding, both 10 pigs peng, body weight from 34 to 60 kg） in a 40 days period, each involving 60 Seghers hybrid pigs. For the pigs raised in large group size（20 pigs per peng） and that raised in small group size（10 pigs per peng）, the formers’ growth rate declined 4.95% （P 0.05）, their daily feed intake decreases 9.72% （P0.05）, their feed conversion efficiency increases 5.45% （P 0.05）, and they were given gross profit reduction of 0.14 yuan per pig. For the pigs raised by free feeding and that raised by rationed feeding, the formers’growth rate rised 13.3% （P0.05）, their daily feed intake increased 16.87% （P0.05）, their feed conversion efficiency declined 3.14% （P 0.05）, they were given gross profit increase of 11.31 yuan per pig.