齐卡商品肉兔在不同饲养条件下的育肥效果

The Growing-Fattening Performance of ZIKA Meat-Type Rabbit under Different Raising Conditions in Sichuan

作者在不同条件下，采用全窝育肥法，重复两年、两个季节测定了齐卡商品肉兔的育肥效果；探讨了温度、季节、营养水平、育肥始重对育肥效果的影响。结果表明：在试验场育肥２５０只齐卡商品兔，９０日龄育肥重２．３３～２．５３公斤，日均增重３１克以上，耗料指数３．３１：１，育肥成活率９５％以上，屠宰率５２％，净肉率８０％，肉骨比５．３５：１，兔肉品质正常。在农村条件下育肥１８０只，９０～１００日龄育肥重２．２～２．４公斤，耗精料指数２．５５：１，育肥成活率８８％～９３％。饲养齐卡商品兔与饲养二元杂交兔相比，每只可增加经济收入２０％以上。育肥季节和始重明显影响育肥未重（Ｐ＜０．０５）。依据本试验，作者建议齐卡商品兔适宜３５日龄断奶，育肥始重应不低于６００克；寒冷季节育肥，育肥第一月的室温应不低于１０℃。育肥适宜营养水平建议消化能（ＤＥ）２６００～２７００大卡／公斤，粗蛋白（ＣＰ）１８％，粗纤维（ＣＦ）１２％以上。

The growing-fattening performance of ZIKA meat-type rabbits was investigated underdinerent feeding conditions in Sichuan province. The factors under examination were seasonstemperature,nutrition plane and the initial live weight.The trials executed in experimentalfarm showed that :On a scale of 250 ZIKA rabbits,the finishing live weight reached 2.33～2.53 kg in 90 days,average daily gain was 31 g,feed conversion index 3.31:1 ,mortalitylower than 5%,careass percentage 52%,net meat peuentagc 80%,the ratio of meat to bone5.35:1,with nomal meat quality. Results of 180 rabbits examined on small rural farmsshowed, live weight 2.2～2.4 kg m 90～100 days ,feed conversion 2.55:1,moltality 7～12% and obtained extra 20% income over other rabbit strain. The season and initial bodyweight significantly influenced the finishing body weight(P< 0.05).The results suggestthat the ZIKA rabbits wean at an age of 5 weeks,and the room temperature not lower than10℃ during the first month of fattening. Nutrition level is suggested as:digestible energy(DE) 2600～2700kcal/kg,crude protein 18%and crude fibre over 12%.