日粮中添加乡土草可改善獭兔生产性能及血液指标

为研究乡土草日粮对商品獭兔后期生产性能、毛密度及血液生化指标的影响,本研究选用健康无病、精神状态良好的110日龄试验兔30只,公母各半,按性别随机分为3组,每组10只。试验Ⅰ组为对照组,饲喂基础日粮;试验Ⅱ组饲喂15%当地乡土草草粉+85%基础日粮;试验Ⅲ组饲喂30%当地乡土草草粉+70%基础日粮。预试期7d,正试期30d。结果表明,试验组提高了獭兔末重、平均日增重、平均日采食量以及体况评分,降低了料重比;与对照组相比,试验Ⅲ组末重、平均日增重、平均日采食量及体况评分分别提高了9.78%、57.9%、4.02%及7.38%(P0.05),而料重比降低了9.4%(P0.05)。试验组提高了獭兔各部位被毛密度,试验Ⅲ组效果最好,与对照组相比,獭兔背部、腰部、左肩部和右肩部毛密度分别提高了20.7%、38.6%、33.7%和47.3%(P0.05),而臀部毛密度提高了12.9%(P0.05)。试验组提高了獭兔总蛋白、白蛋白、球蛋白、白球比、免疫球蛋白G含量,与对照组相比,试验Ⅲ组总蛋白提高了15%,白蛋白提高了13%(P0.05);球蛋白提高8.6%,白球比提高了23.5%,免疫球蛋白G提高了30%(P0.05)。综上所述,30%乡土草草粉替代基础日粮提高了獭兔生产性能。

Supplementation with native grass improves performance and serum biochemical indexes in Rex rabbits

The objective of this study was to investigate the effect of native grass diets on performance,fur density,and serum biochemical indexes in finished Rex rabbits.Thirty 110 day-old healthy Rex rabbits were randomly divided into 3 groups,with 10 rabbits in each group (half male and half female).Group Ⅰ was control,where the rabbits were fed a basal diet;Group Ⅰ rabbits were fed 85％ basal diet+15 ％ local native grass;and group Ⅱ rabbits were fed 70％ basal diet+30％ local native grass.The adaptation period was 7 days,and the treatment period was 30 days.The results showed that the body weight,average daily gain,average daily feed intake,and body condition score increased and that the ratio of feed to gain decreased in rabbits fed with experimental diets.Compared with the control,in group Ⅱ rabbits,animal body weight,average daily gain,average daily feed intake,and body condition score increased by 9.78％,57.9％,3.79％,and 7.38％ (P＜0.05),respectivety,and the ratio of feed to gain decreased by 9.4％ (P＜0.05).Fur density increased when the rabbits were fed with experimental diets.Compared with the control group,in group Ⅱ rabbits,fur densities on the back,waist,and left and right shoulders increased 20.7％,38.6％,33.7％ and 47.3％ respectively (P＜0.05).The fur density on the buttocks increased by 12.9％ (P＞0.05).The serum total protein and albumin contents increased 15％ and 13％,respectively (P＜0.05),and the serum globulin also increased (P＞0.05).In summary,the performance of Rex rabbits can be improved by feeding native grass diet during the finishing period.