Feeding value of urea molasses-treated wheat straw ensiled with fresh cattle manure for growing crossbred cattle calves
Feeding value of urea molasses-treated wheat straw ensiled with fresh cattle manure for growing crossbred cattle calves
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尿素糖蜜处理麦秆青贮新鲜牛粪对杂交牛犊的饲用价值
DOI：
10.1007/s11250-010-9745-5
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发表时间：
2011
影响因子：
1.7
通讯作者：
H. Saddiqi
中科院分区：
文献类型：
--
作者：
M. Sarwar;M. Shahzad;M. Nisa;Danish Afzal;M. Sharif;H. Saddiqi
本试验研究了尿素+糖蜜处理的小麦秸秆（WS）与牛粪（CM）混合青贮对萨荷杂交犊牛营养物质采食量、消化率和生长性能的影响。将CM与研磨的WS以基于干物质（DM）的30：70的比例混合。用尿素（4%DM）和糖蜜（4%DM）处理的WS-CM混合物允许在水泥坑中发酵40天。以发酵小麦秸秆（FWS）为基础，配制了4种等氮等能的试验日粮。FWS 0、FWS 20、FWS 30和FWS 40日粮分别含有0%、20%、30%和40%的FWS。20头犊牛（9-10月龄）采用随机区组设计，随机分配至4个日粮处理组，每组5头。犊牛的干物质、有机物、粗蛋白和中性洗涤纤维的摄入量随日粮FWS水平的增加而增加。不同饲料水平犊牛的增重差异显著。在饲喂FWS 40日粮的犊牛中观察到最高的增重（491.8 g/天），而饲喂FWS 0和FWS 20日粮的犊牛分别增重350.0和449.6 g/天。本研究的结果表明，FWS可以添加到生长杂交犊牛的饮食中高达30%，而不会对它们的生产性能产生任何不利影响。
The study was carried out to evaluate the influence of urea plus molasses-treated wheat straw (WS) ensiled with cattle manure (CM) on nutrients intake, their digestibilities, and growth performance of crossbred (Sahiwal × Holstein Friesian) cattle calves. The CM was mixed with ground WS in a ratio of 30:70 on dry matter (DM) basis. The WS–CM mixture treated with urea (4% DM) and molasses (4% DM) was allowed to ferment for 40 days in a cemented pit. Four iso-nitrogenous and iso-energetic fermented wheat straw (FWS)-based experimental diets were formulated. The FWS0, FWS20, FWS30, and FWS40 diets contained 0%, 20%, 30%, and 40% FWS, respectively. Twenty calves (9–10 months of age) were randomly allocated to four dietary treatments in a randomized complete block design, five in each group. Increasing trends for DM, organic matter, crude protein, and neutral detergent fiber intakes by calves were observed with increasing dietary FWS level. Weight gain was significantly different among calves fed different levels of FWS. The highest weight gain (491.8 g/day) was observed in calves fed FWS40 diet, while calves fed FWS0 and FWS20 diets gained 350.0 and 449.6 g/day, respectively. The results from this study imply that the FWS can be added up to 30% in the diet of growing crossbred calves without any detrimental effect on their performance.