精准饲养对獭兔生产性能的影响

The Effect of Precise Feeding on Production Performance of Rex Rabbit

选择7～8月龄青年母兔100只,按体重分成两组,每组50只。选择成年公兔30只,在8天内分别对上述两组母兔配种。观察受胎率、产仔数、35日龄体重、成活率。在两组后代中各随机选择35日龄仔兔150只(公、母各75只),一直饲养至165日龄左右皮毛成熟宰剥时为止。其间,试验组分配种、怀孕、哺乳,35～120日龄,121日龄宰杀时的3个时段,分别配制3种饲料饲喂,对照组则采用一料到底的饲料。试验组全过程采用自由采食的喂料方法,对照组采用传统的定时定量喂料方法。观察测定生长发育、成活率、兔皮等级、胴体重量(带头、心、肺、肝、肾)、饲料消耗量等。结果表明:与对照组相比,试验组受胎率提高6%,窝均产活仔数增加0.3只,35日龄断奶均重提高17.3%,断奶成活率提高6%。120日龄时的成活率提高25.1%,宰杀时的成活率提高28.3%,120日龄时的体重试验组比对照组平均每只增加0.39kg,提高17.3%。宰杀日龄(被毛换毛结束)两组间相似,宰杀时体重,试验组比对照组平均每只增重0.47kg,提高17.8%,差异极显著。试验组一等以上兔皮占85%,而对照组仅占25.7%。兔皮(产品)试验组比对照组增加了31张,增幅达28.4%。胴体均重试验比对照组增加0.28kg,增幅为17.7%。胴体总重试验组比对照组增加87.6kg,增幅达50.7%。

This test selected 100 numbers female rabbits of 7～8 month and they were divided into two groups according to body weight,50 numbers in each group. It was selected 30 numbers adult male rabbits to breed with two group of female rabbits within 8 days, to observe the pregnancy rate, 35 day weight, and survival rate. Randomly selected 150 numbers(male 75, female 75) 35 days baby rabbits in two groups of offspring and were raised to 165 days until the fur maturity to slaughter. The test group was divided into 3groups as mating,pregnancy,breast-feeding;35～120 days;121days～slaughtered and were used 3 kinds of feed to feed respectively. The control group was used one kind of feed throughout the test period. The test group was feed freely in the whole process of experiment, but the control group was feed by timing quantitative feeding method. Determination on growth, survival rate, rabbit grade, carcass weight(head, heart, lung, liver,kidney), feed consumption etc. The results showed that compared with the control group, the pregnancy rate of test group was increased 6%, the number of live births was increased 0.3, the weaning average weight at35 days age was increased 17.3%, the survival rate of weaning was increased 6%. At the age of 120 days the survival rate increased by 25.1%, the slaughter of the survival rate increased 28.3%, 120 days of age the average weight increase of 0.39 kg, increased by 17.3%. The slaughter age were similar between the two groups, slaughter weight of test group increased by 17.8% than the control group, the average weight gain of0.47 kg and increased 17.8%, it was significantly different. The test group more than one class rabbit skin was accounted for 85%,while the control group was 25.7%.Compaired to the control group, the test group was increased 31 piece, an increase of 28.4%, the average carcass weight was increased 0.28kg, 17.7% increased and the carcass weight was increased 87.6kg, 50.7% increased.