García-Galván Adan, Belmar-Casso Roberto, Sarmiento-Franco Luis, Sandoval-Castro Carlos Alfredo
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, P.O. Box 4-116, Merida, Yucatán 97100, Mexico.
Trop Anim Health Prod. 2012 Apr;44(4):843-7. doi: 10.1007/s11250-011-9976-0. Epub 2011 Sep 11.
Whole pod and seeds of velvet bean (Mucuna pruriens) were included in diets for growing sheep used to validate previously estimated ME values of 9.7 MJ and 12.6 MJ for whole pod and seed respectively. Twenty-four lambs, 15 females and nine males of 18.7 ± 2.4 kg average weight, were allocated in three treatments using a completely randomized block design with eight replicates per treatment. Each group was given a diet with a ratio of 60% of Napier grass (Pennisetum purpureum) and 40% of a supplement with the addition of 0%, 50% whole pod or 66% of M. pruriens seeds, for TI, TII and TIII respectively. Diets were formulated to meet the requirements for 100-g daily live weight gain (LWG). The total dry matter intake (836 g a(-1) d(-1), forage + supplement), LWG (90 g a(-1) d(-1)) and feed conversion (9.66 kg DM/kg LWG) of lambs from TIII were lower (P < 0.05) compared to 941 g, 121 g, and 7.78 kg DM/kg LWG from TII and 976 g, 132 g and 7.50 kg DM/kg LWG from TI respectively. No difference was found (P > 0.05) between TI and TII in the three evaluated variables. The ME values of whole pod and seeds of M. pruriens used in this work were validated. It was concluded that M. pruriens can be included as a component in diets for growing sheep, as a partial replacement of conventional feedstuffs.
在用于验证先前估计的毛豆（黎豆）全荚和种子的代谢能值（分别为9.7兆焦和12.6兆焦）的生长绵羊日粮中，添加了毛豆的全荚和种子。选用24只平均体重为18.7±2.4千克的羔羊，其中15只为雌性，9只为雄性，采用完全随机区组设计分为三个处理组，每个处理组有8个重复。分别给每组羔羊饲喂一种日粮，该日粮由60%的象草（紫狼尾草）和40%的补充料组成，补充料中分别添加0%、50%的全荚或66%的黎豆种子，即TI组、TII组和TIII组。日粮的配制满足每日100克体重增加（LWG）的需求。与TII组的941克、121克和7.78千克干物质/千克体重增加以及TI组的976克、132克和7.50千克干物质/千克体重增加相比，TIII组羔羊的总干物质摄入量（836克/天，草料+补充料）、体重增加（90克/天）和饲料转化率（9.66千克干物质/千克体重增加）较低（P<0.05）。在三个评估变量中，TI组和TII组之间未发现差异（P>0.05）。本研究中使用的黎豆全荚和种子的代谢能值得到了验证。得出的结论是，黎豆可作为生长绵羊日粮的一种成分，部分替代传统饲料。
