A Study on Optimal Dietary Crude Protein Level of Adult Manis javanica
This experiment was conducted to investigate the effects of dietary crude protein level on body weight,average daily feed intake,fecal score,blood biochemical and antioxidant indices and nutrient apparent digestibility of captive adult Manis javanica,to determine the dietary optimal crude protein level for adult Ma-nis javanica.According to a 6x6 Latin square design,6 healthy adult Manis javanica(3 males and 3 females)with similar body weight were selected,and fed the experimental diets with the crude protein levels of 40％(group Ⅰ),42％(group Ⅱ),44％(group Ⅲ),46％(group Ⅳ),48％(group V)and 50％(groupⅥ),respectively.The experiment was divided into 6 stages,with each stage lasting 14 days,including a pre-trial period of 7 days and a trial period of 7 days.The results showed as follows:1)there were no significant differences in the initial body weight,final body weight and average daily feed intake among all groups(P＞0.05).2)There were no significant differences in the fecal score and moisture content among all groups(P＞0.05).3)There were no significant differences in the contents of albumin,urea nitrogen,glucose,triglycer-ide,cholesterol,low-density lipoprotein cholesterol and high-density lipoprotein cholesterol and activities of al-anine aminotransferase,alkaline phosphatase,lactate dehydrogenase and lipase in plasma among all groups(P＞0.05),while the plasma total protein content showed a different trend(P=0.060).4)The serum catalase activity of group Ⅲ was significantly higher than that of groups Ⅱ,Ⅳ and Ⅵ(P＜0.01),the serum catalase activity of group V was significantly higher than that of group Ⅱ(P＜0.01),and the serum catalase activity of group V was significantly higher than that of groups Ⅳ and Ⅵ(P＜0.05).5)The crude ash apparent di-gestibility of group V was significantly higher than that of group Ⅱ(P＜0.05).In conclusion,under the con-ditions of this experiment,the dietary optimal crude protein level for captive adult Manis javanica is 44％.[Chinese Journal of Animal Nutrition,2024,36(4):2612-2622]
万方数据
维普
