【摘要】 试验采用中型"开放式"呼吸测热装置,结合生长试验、消化代谢试验和绝食代谢试验对舍饲东北细毛羊进行生长期能量和蛋白质代谢特点及需要量的研究。结果表明,生长期蛋白质需要量为RCP=10.21+0.18△W/(0.49+0.11△W);可消化粗蛋白质需要量为RDCP=6.4+0.11△W(/0.49+0.11△W);生长期代谢能需要量为MER=271KJ·W-0.75+NEg/Kpf。式中:△W为日增重(g),W0.75为代谢体重(kg);NEg增重净能;Kpf为增重代谢能转化为增重净能的效率。更多还原

【Abstract】 Study on energy and protein metabolic characterizes and requirements of confinedness mutton sheep used medium open-circuit respiratory calorimetric system,combined with feeding trail,digestion and metabolism experiments,gas and energy metabolism experiment.The results showed that growth period protein requirements of confinedness mutton sheep:RCP=10.21+0.18W/(0.49+0.11W);RDCP=6.4+0.11W/(0.49+ 0.11W);metabolic energy requirements:MER=271 kJ·W-0.75+ NEg/Kpf.W:Daily weight(kg),W0.75:Metabolic weight(kg),NEg:Gain net energy(KJ);Kpf:MEg/NEg.更多还原