García-Winder L R, Goñi-Cedeño S, Olguín-Lara P A, Díaz-Salgado G, Arriaga-Jordán C M
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Instituto Literario # 100, Col. Centro, 50000 Toluca, México.
Trop Anim Health Prod. 2009 Dec;41(8):1615-21. doi: 10.1007/s11250-009-9355-2. Epub 2009 Apr 24.
Two experiments were undertaken to evaluate the use of pods from Huizache (Acacia farnesiana), common in the arid and semiarid regions of Mexico, on the perfromance and apparent digestibility in Pelibuey Mexican hair growing ewe lambs. Twenty-four Pelibuey ewe lambs were used in the animal performance experiment, with a mean live weight of 14.91 +/- 1.48 kg, randomnly allocated to three groups which received ad libitum for 77 days (11 weeks) experimental whole rations T0 with 0%, T12 with 12% or T24 with 24% inclusión of dried and ground Huizache pods. Dry matter intakes (g/kg (0.75) daily) were 83, 95, 90 for T0, T12, and T24 respectively (P > 0.05). Mean daily live-weight gain was 90, 75, and 63 g/day for T0, T12, and T24 (P < 0.001). Nine Pelibuey ewe lambs were used to determine apparent digestibility in vivo of the experimental diets using a 3 x 3 latin square design repeated three times. There were differences in the digestibility of dry matter (P < 0.001), organic matter (P < 0.001), nitrogen (P < 0.031), neutral detergent fibre (P < 0.002), and acid detergent fibre (P < 0.001) being lower in T24. Huizache pods may be an alternative feed when included up to 12% of dry matter in the diets for sheep growing moderately.
开展了两项试验，以评估在墨西哥干旱和半干旱地区常见的牧豆树（金合欢）豆荚对墨西哥佩利布韦生长母羊羔生产性能和表观消化率的影响。在动物生产性能试验中使用了24只佩利布韦母羊羔，平均活重为14.91±1.48千克，随机分为三组，自由采食77天（11周）的试验全价日粮，分别为：T0组含0%、T12组含12%、T24组含24%的干燥和磨碎的牧豆树豆荚。T0、T12和T24组的干物质摄入量（克/千克（0.75）日）分别为83、95和90（P>0.05）。T0、T12和T24组的平均日增重分别为90、75和63克/天（P<0.001）。使用3×3拉丁方设计重复三次，用9只佩利布韦母羊羔测定试验日粮的体内表观消化率。T24组的干物质（P<0.001）、有机物（P<0.001）、氮（P<0.031）、中性洗涤纤维（P<0.002）和酸性洗涤纤维（P<0.001）消化率较低，存在差异。当牧豆树豆荚在中等生长的绵羊日粮中的干物质含量高达12%时，可能是一种替代饲料。
