Yerradoddi Ramana Reddy, Khan Arif Ali, Mallampalli Saibutcha Rao, Devulapalli Ravi, Kodukula Prasad, Blümmel Michael
International Livestock Research Institute c/o ICRISAT, Patancheu, 502 324, India,
Trop Anim Health Prod. 2015 Apr;47(4):743-9. doi: 10.1007/s11250-015-0788-5. Epub 2015 Mar 11.
Sweet sorghum bagasse with leaf residue (SSBLR) based complete diets with high or low protein and high- or low-energy levels were evaluated in a 60-day growth trial using growing sheep. Twenty-eight Deccani ram lambs were divided into four groups (16.0 ± 0.59 kg) of seven each and fed low-protein high-/low-energy and high-protein high-/low-energy diets ad lib. Average daily gain (g; P < 0.05) and feed efficiency (P < 0.01) were significantly higher in lambs fed high energy than those with low-energy diets, and cost per kg gain ($) was significantly lower (P < 0.05) in low protein than high-protein diets. Dry matter intake (DMI) (g/day) was not significantly affected either by protein or energy level in the diet, but dry matter (DM), organic matter (OM), protein, and neutral detergent fiber (NDF) digestibilities were higher significantly (P < 0.01) in high protein/energy diets than low protein/energy diets. Crude protein (CP) intake (g/day) was significantly (P < 0.001) higher in lambs fed high protein than low-protein diets. However, N balance (g/day) was significantly (P < 0.001) higher in lambs fed low protein than high-protein diets. It is concluded that feeding of SSBLR-based diet with low protein (CP 12.9 %) and high energy (9.4 MJ metabolizable energy (ME)/kg DM) was recommended for better performance, nitrogen retention, and returns from growing Deccani ram lambs.
在一项为期60天的生长试验中，使用生长中的绵羊对含有高或低蛋白质以及高或低能量水平的甜高粱蔗渣与叶片残渣（SSBLR）基础全价日粮进行了评估。28只德干尼公羔羊被分成四组（每组16.0±0.59千克），每组7只，自由采食低蛋白高/低能量和高蛋白高/低能量日粮。采食高能量日粮的羔羊平均日增重（克；P<0.05）和饲料效率（P<0.01）显著高于采食低能量日粮的羔羊，低蛋白日粮每千克增重成本（美元）显著低于高蛋白日粮（P<0.05）。日粮中的蛋白质或能量水平对干物质采食量（DMI）（克/天）没有显著影响，但高蛋白/能量日粮的干物质（DM）、有机物（OM）、蛋白质和中性洗涤纤维（NDF）消化率显著高于低蛋白/能量日粮（P<0.01）。采食高蛋白日粮的羔羊粗蛋白（CP）摄入量（克/天）显著高于采食低蛋白日粮的羔羊（P<0.001）。然而，采食低蛋白日粮的羔羊氮平衡（克/天）显著高于采食高蛋白日粮的羔羊（P<0.001）。得出的结论是，对于生长中的德干尼公羔羊，建议饲喂低蛋白（CP 12.9%）和高能量（9.4兆焦代谢能（ME）/千克干物质）的SSBLR基础日粮，以获得更好的生产性能、氮保留和收益。
