Comparative Experiment of Utilization Rate of Jiangyue Donkey on Several Kinds of Straw Diet
FANG Lei et al(College of Animal Science,Tarim University,Alar,Xinjiang 843300)
[Objective] The aim was to provide the scientific basis for the reasonable utilization of straw resource and the development of donkey raising.[Method] With 3 male Jiangyue donkeys that 3~4 years old as the tested animals,through digestion trial experiment with total collecting feces method,the utilization rates of Jiangyue donkey on rice straw,wheat straw,corn stalk and silage diet under the condition of 400 g/d concentrate were studied.[Result] The feed intakes of Jiangyue donkey on dry matter,organic matter,NDF,ADF and energy in silage diet were(2 909.08± 208.65)g/d,(2 565.20±166.25)g/d,(1 640.96±216.36)g/d,(1 036.48±138.23)g/d,(50.88±3.62) MJ/d resp.,being lower than those of other 3 groups,and the digestibility of Jiangyue donkey on those matters were(59.10±4.62)%、(64.20±4.03)%,(60.71±4.25)%,(52.79±5.13)%,(61.92±4.32)% resp.,being higher than those of other 3 groups.The feed intake of Jiangyue donkey on wheat straw,rice straw and corn straw had no difference,and the digestibility of Jiangyue donkey on NDF,ADF,organic matter and energy in wheat straw and rice straw were lower than those in corn straw.[Conclusion] The utilization rate of Jiangyue donkey on silage diet and corn straw were higher.