Nurfeta Ajebu
Department of Animal and Range Sciences, College of Agriculture, Hawassa University, P.O. Box 222, Hawassa, Ethiopia.
Trop Anim Health Prod. 2010 Jun;42(5):815-24. doi: 10.1007/s11250-009-9491-8. Epub 2009 Oct 31.
Effects of supplementing sheep consuming wheat straw with local agro-industrial by-products on feed intake, growth, digestibility and nitrogen utilization were determined. Thirty 1-year-old local wethers, with a mean (+/-SD) live weight of 19.8 (+/-1.06) kg, were assigned to five treatments: wheat straw + atella (T1), wheat straw + atella + poultry litter (T2), wheat straw + atella + coffee pulp (T3), wheat straw + atella + coffee pulp + poultry litter (T4), hay + concentrate (T5). A 7-day digestibility experiment and a 112-day growth trial were conducted. Total dry matter (DM) and organic matter (OM) intake as well as body weight gain was similar for all treatments. The highest (P < 0.05) nitrogen (N) intake was in sheep fed T1 and T4 diets, while the lowest was in those fed T2 and T5 diets. Sheep fed T1 and T2 diets had greater (P < 0.05) DM and OM digestibility than those fed T4 and T5 diets. The highest (P < 0.05) digestibility of N was for the T2, T4, and T5 diets, while the lowest was for the T1 diet. The highest N retention was in T4 diet, whereas the lowest was in T3 diet. In conclusion, in urban and peri-urban areas where atella, poultry litter, or coffee pulp are available, smallholder farmers could feed the mixtures as a supplement to straw with a good performance without using concentrate feeds.
研究了用当地农工业副产品补充采食小麦秸秆的绵羊对其采食量、生长、消化率和氮利用率的影响。选取30只1岁的本地阉羊，平均（±标准差）体重为19.8（±1.06）千克，将其分为五个处理组：小麦秸秆+阿特拉（T1）、小麦秸秆+阿特拉+家禽粪便（T2）、小麦秸秆+阿特拉+咖啡渣（T3）、小麦秸秆+阿特拉+咖啡渣+家禽粪便（T4）、干草+精料（T5）。进行了为期7天的消化率试验和为期112天的生长试验。所有处理组的总干物质（DM）和有机物质（OM）摄入量以及体重增加量相似。T1和T4组日粮的绵羊氮（N）摄入量最高（P<0.05），而T2和T5组日粮的绵羊氮摄入量最低。饲喂T1和T2组日粮的绵羊的DM和OM消化率高于饲喂T4和T5组日粮的绵羊（P<0.05）。T2、T4和T5组日粮的N消化率最高（P<0.05），而T1组日粮的N消化率最低。T4组日粮的N保留量最高，而T3组日粮的N保留量最低。总之，在有阿特拉、家禽粪便或咖啡渣的城市和城郊地区，小农户可以将这些混合物作为秸秆的补充饲料，在不使用精料的情况下取得良好的饲养效果。
