夏季发酵床模式与改进水泥地面模式生猪饲养效果比较

为了比较夏季发酵床与改进水泥地面模式保育猪和生长猪饲养效果,选择日龄相近、生长发育良好的杜×长×大三元配套系商品猪,初始体重分别为（9.59±0.81）kg保育猪88头和（18.43±1.32）kg生长猪64头,随机分成发酵床模式组和改进水泥地面模式组。保育猪饲养期为31d,生长猪饲养期为57d。全程记录饲养期间每天猪舍内温度、湿度、地面温度。结果表明,改进水泥地面模式舍内温度、地面温度和相对湿度均低于发酵床模式。改进水泥地面模式与发酵床模式相比,保育猪日增重提高14.6%、料重比降低11.7%;生长猪日增重无显著差异,但料重比降低9.8%。夏季保育猪和生长猪在改进水泥地面模式下的饲养效果优于发酵床模式,建议南方地区发酵床只用于夏季以外季节的保育猪饲养。

Comparison on Feeding Effect of Pigs Housed in a Deep-litter System and an Improved Cement Ground System during Summer

The feeding effects of pigs housed in a deep-litter system and an improved cement ground system were investigated in this study. 88 healthy nursery pigs （Duroc×Yorkshire× Landrace） with average initial weight of （9.59±0.81）kg and 64 growing pigs （Duroc× Yorkshire× Landrace） with average in itial weight of （18.43± 1.32）kg were randomly divided into 2 groups： deep-litter system group and im proved cement ground system group. The feeding trial of nursery pigs and growing pigs lasted for 31d and 57d respectively. In the feeding course, the piggery temperature, relative humidity and the surface tempature of piggery floor were measured daily. The results showed that all the piggery temperature, surfacefloor temperature and relative humidity of the improved cement ground system were lower than the deeplitter system. For nursery pigs, the daily weight gain of the improved cement ground system group was 14.6% higher than the deep-litter system group, and the ratio of feed to gain decreased 11.7%. For grow- ing pigs, there was no significant difference in the daily weight gain, but the ratio of feed decreased 9.8%. In conclusion, nursery and growing pigs raised ing effect during summer. It was suggested th during spring, autumn and winter in south Ch in improved cement ground system could obtain better feed at the deep-litter system was ina. only used to raise nursery pigs