【摘要】 以哈白猪为对照,研究20℃条件下,低（L,750g/d）、中（M,1 050g/d）、高（H,1 300g/d）三种采食水平（饲料ME含量为12.37KJ/kg,CP:16％）对体重20～25kg的民猪产热量的影响。研究结果表明,随采食水平提高,产热量有逐渐增加的趋势,但差异不显著（P>0.05）。三种采食水平下,民猪和哈白猪的产热量分别为33.5、34.5、35.9和31.9、33.8、34.9KJ/kg^0.75·h;民猪的产热量分别比哈白猪高5.0％,2.0％和3.0%,但差异不显著。行为对产热量有影响,无论民猪,还是哈白,其静卧、活动和采食三种行为下的产热量差异均显著（P<0.05）,而三种行为下的产热量在不同品种间,不同采食水平间均无显著差异（P>0.05）。更多还原

【Abstract】 Heat Production (HP) of growing Min Pig and Harbin Whirte Pigwas measwred using oper-circuit respiratory calorimetry Under threelevels of food intakd (H-1300 g/d,M-1050 g/d and L-750 g/d) to determinethe effect of fod intake level (FI) on HP and the difference be tweenthe two breeds.Four pigs for each breed, with body weight in the rargeof 20 - 25 kg, were used in the. experiment under the environmentaltemperatwre of 20℃. The result showed that HP tended to increase withthe increase in FI.but no significant difference was found.At the threefood intake levels of H,M and L,HP was 35.9,34.5,33.5 and 34.9,33.8 and31.9 KJ/kg0.75· h for Min Pig and Harbin White respectively. Althongy HPof Min Pig was higher by 3.0,2.0 and 5.0% than that of Harbin Whiteat the three food intake levels respectively,no significant differencewas fornd between the breeds.On the other hard,HP varied with behaviorof lying,moving and feeding in both Min and Harbin White,which was notaffected by food intake level.更多还原