不同粗蛋白含量日粮对Beagle犬生产力的影响

用4种不同粗蛋白含量的日粮饲喂60条2～3岁Beagle犬种犬(♀48,♂12)和200条(♀,♂各半)1～8月龄生长犬,对种母犬2～3胎的主要繁殖性能和生长犬的生长性能(体重月平均增加)进行测定.结果 表明饲喂粗蛋白含量水平为28.6%的日粮,受试母犬表现出优良的繁殖性能:配怀率98.5%、平均产仔数6.3条/胎、仔犬成活率90.3%;1～8月龄生长Beagle犬饲喂粗蛋白含量水平为32.8%为最佳,平均月增重为1.41 kg.说明不同粗蛋白含量日粮对Beagle犬生产力有明显的影响.

Impact of Diets with Different Crude Protein Contents on the Beagle's Productivity

Sixty 2～3 year old (♀ 48, ♂ 12) and two hundred (♀100, ♂ 100) 1～8 month old beagles were fed four diets containing different crude protein content. Reproductive and growth performance in the dogs were measured. The results showed that forty eight 2～3 year-old female beagles fed with 28.6% crude protein content diet had good reproductive performance: the pregnancy rate was 98.5%, the average fetal number was 6.3 heads and puppies' survival rate was 90.3%. Two hundred 1～8 month old puppies fed with 32.8% crude protein content diet had good growth performance, and an average weight increase per month of 1.41 kg. The results suggested that crude protein levels in the diet does have an impact on the Beagle's productivity.