肉用幼兔饲料配方的对比试验

StudYon Techniques of Raising Growing Meat Rabbits一A Comparative Trial of Rations

选用１３８只４周龄断奶新西兰白兔按相似原则分成３组，在８周的试验期内，Ⅰ、Ⅱ组兔分别喂给１、２号饲料；Ⅲ组兔前４周喂给３号饲料，后４周喂４号饲料。Ⅰ、Ⅱ、Ⅲ组兔的平均日增重分别为２９．４４、３２．４４和３２．１８克，每千克增重耗配合饲料分别为４．６０、４．１１和４．１９千克。平均日增重与其每日消化能及可消化干物质摄入量之间存在中等强度的相关，而与每日风干料及可消化粗蛋白摄入量之间仅存在弱相关，相关系数分别为０．５４１１、０．４９８５、０．２９２４和０．２８２２。结果表明：采食２号饲料兔的日增重及饲料报酬均比其他料好；肉兔的生长速度主要与其每日消化能的摄入量有关；阶段饲养对饲养肉用幼兔的经济效益无影响。

growing rabbits aged 4 weeks,weaned just before experiment,were allocated into 3groups similarly.Animals in groups were fed different formulative diets for 8 weeks,that is,rab-bits in group 1,2 were feed ration 1 and 2,respectively,those in group 3 were fed ration 3 for 4weeks,then fed ration 4 for remain days. Results showed that,an average daily weight gain ingroup 1,2,3 were 29.44,32.44 and 32.18g,respectively.Food consumption perkggain were4.60,4.11 and 4.19kg,respectively.Amedium co一relationships between the daily growingweight and the amounts of daily digestible energy and digestible dry matter were obtained,a weadc0一ralationships between the daily weight gain and the amounts of daily air dry food and di-gestible crude protein were obtained.The co一efficiensies were 0.5411,0.4985,0.2924 and0.2822,respectively. ResuIts also suggested that ration 2 is better than others justified by dailygrowing rate,food profits,and that the growing rate mainly associate with daily digestible energyconsumed.The phase feeding has little effect on raising growing meat rabbits。