| 日本大耳兔生后时期若干性状的初步研究 |
| |
| 引用本文： | 徐汉涛,朱国江.日本大耳兔生后时期若干性状的初步研究[J].畜牧与兽医,1997,29(4):152-154. |
| |
| 作者姓名： | 徐汉涛 朱国江 |
| |
| 作者单位： | 南京农业大学动物科技学院，鲁威食品有限公司兔场 |
| |
| 摘 要： | 本研究对日本大耳兔初生、２１、３５、６０、９０、１２０、１５０、１８０日龄和成年等不同生长阶段生长发育和繁殖力、肥育性能进行跟踪观察和测定。结果表明，初生至９０日龄生长速度呈直线上升，之后则急剧下降。初生、２１、３５、６０、９０、１２０、１５０、１８０日龄和成年体重分别为６３．５、２３６．８、５１８、１１４７、２０６３．２、２８６８．７、３５０５．６、３９８７．７和４１５９．２ｇ；窝均产仔８．１５只，仔兔２１日龄窝重１９２９．５ｇ，３５日龄断奶成活率９６．９％；肥育期（３５～９０日龄）日增重３３．３ｇ，屠宰率４７．１％，料肉比３．９９；３月龄鲜皮重２４５．０ｇ，皮板面积８８９．３ｃｍ２。由此可见，日本大耳兔繁殖力和母兔哺育力较强，早期生长发育快，符合正常生长发育规律，由于屠宰率和饲料转化率不高，不宜作商品兔生产，但作为杂交母本生产商品兔可取得较好效果
|
| 关 键 词： | 日本大耳兔 繁殖力 生长发育 |
A PRELIMINARY STUDY OF CERTAIN CHARACTERISTICS OF THE JPANESE WHITE RABBIT DURING COMPLETE GROWTH PERIOD |
| |
| Xu Hantao,et al.A PRELIMINARY STUDY OF CERTAIN CHARACTERISTICS OF THE JPANESE WHITE RABBIT DURING COMPLETE GROWTH PERIOD[J].Animal Husbandry & Veterinary Medicine,1997,29(4):152-154. |
| |
| Authors: | Xu Hantao |
| |
| Abstract: | Determinations were made on the live weights of Japanese White Rabbits at birth,21,35,60,90,120,150,180 days and at maturity (about 7～8 months),and on the reproductive qualities of the breeding does.The growth rate from birth to 90 days of age was very rapid,then it slowed down sharply.Live weights at birth,21,35,60,90,120,150,180 days and maturity were 63.5,236.8,518,1147,2063.2,2868.7,3505.6,3987.7 and 4159.2 g,respectively.The average litter size was 8.15.Average litter weight at 21 days was 1929.5g.Livability of young at weaning (35 days) was 96.6%.Average daily increase of live weight (from 35～90 days) was 33.3g.At 3 months of age,the dressing percentage was 47.1%,feed/live weight ratio was 3.99∶1,average (fresh) skin weight was 250.8g,skin size was 889.3 cm 2.The breeding does showed fairly good reproductive qualities.The litters showed normal,rapid early growth.The dressing percentage and feed conversion rate of the purebred litters were not high,thus not suitable as meat rabbits,however,the does can be used as dams in crossing for commercial rabbit production. |
| |
| Keywords: | Japanese White Rabbit reproductive quality growth/development |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
