Albores-Moreno S, Alayón-Gamboa J A, Ayala-Burgos A J, Solorio-Sánchez F J, Aguilar-Pérez C F, Olivera-Castillo L, Ku-Vera J C
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, C.P. 97300, Mérida, Yucatán, Mexico.
El Colegio de la Frontera Sur, Avenida Rancho Polígono 2-A, Cd. Industrial, 24500, Lerma, Campeche, Mexico.
Trop Anim Health Prod. 2017 Apr;49(4):857-866. doi: 10.1007/s11250-017-1275-y. Epub 2017 Mar 23.
An experiment was carried out to determine the effect of supplementing ground pods of Enterolobium cyclocarpum in a basal ration of Pennisetum purpureum grass on feed intake, rumen volatile fatty acids (VFAs), and protozoa and methane (CH) production by hair sheep. Four male sheep (Pelibuey × Katahdin) with a mean live weight of 27.0 kg (SD ± 0.5) were supplemented with 0.00, 0.15, 0.30, and 0.45 kg of dry matter (DM) of E. cyclocarpum pods daily; equivalent to 0.00, 4.35, 8.70, and 13.05 g of crude saponins, respectively. Dry matter intake (DMI), organic matter intake (OMI), and molar proportions of propionic acid increased linearly (P < 0.05) as pods of E. cyclocarpum in the ration were increased. Higher intakes of DM and OM were found when lambs were fed 0.45 kg DM per day of E. cyclocarpum, and the highest proportion of propionic acid (0.21 and 0.22, respectively) was obtained with 0.15 and 0.30 kg of DM per lamb of E. cyclocarpum, while apparent digestibility of neutral detergent fiber (NDF) and molar proportion of acetic acid were reduced (P < 0.05). Rumen CH production decreased (P < 0.05) when 0.30 and 0.45 kg of DM/lamb/day of E. cyclocarpum were fed (21.8 and 25.3 L CH/lamb/day, respectively). These results suggest that to improve the feeding of sheep fed tropical grass, it is advisable to supplement the basal ration with up to 0.30 kg DM of E. cyclocarpum pods.
进行了一项实验，以确定在紫狼尾草基础日粮中添加圆果象耳豆荚对毛用绵羊采食量、瘤胃挥发性脂肪酸（VFA）、原生动物以及甲烷（CH）产生量的影响。选用4只平均体重为27.0千克（标准差±0.5）的雄性绵羊（佩利布埃×卡他丁），每天分别补充0.00、0.15、0.30和0.45千克干物质（DM）的圆果象耳豆荚；分别相当于0.00、4.35、8.70和13.05克粗皂苷。随着日粮中圆果象耳豆荚量的增加，干物质采食量（DMI）、有机物采食量（OMI）以及丙酸的摩尔比例呈线性增加（P<0.05）。当羔羊每天采食0.45千克DM的圆果象耳豆荚时，发现DM和OM的采食量更高，而每只羔羊采食0.15和0.30千克DM的圆果象耳豆荚时，丙酸比例最高（分别为0.21和0.22），同时中性洗涤纤维（NDF）的表观消化率和乙酸的摩尔比例降低（P<0.05）。当每只羔羊每天饲喂0.30和0.45千克DM的圆果象耳豆荚时，瘤胃CH产生量降低（P<0.05）（分别为21.8和25.3升CH/只/天）。这些结果表明，为了改善以热带草为食的绵羊的饲养，建议在基础日粮中最多补充0.30千克DM的圆果象耳豆荚。
