Thus only the metabolizable portions of a feedstuff can provide energy and essential nutrients . 因此，只有饲料的可代谢部分可提供能量和必需的养分。
2.
Song zhigang and wang dehua 2002 . the maximum metabolizable energy intake and the relationship with basal metabolic rate in the striped hamster ( cricetulus barabensis ) . acta theriologica , 47 ( 4 ) : 417 - 423 李兴升王德华杨俊成. 2003 .光周期对布氏田鼠和长爪沙鼠能量代谢和体重的影响。兽类学报23 ( 4 ) ： 304 311 。
