• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Tropical Animal Health and Production >Feeding of oak (Quercus leucotrichophora) leaves and evaluation for its potential inclusion in the feeding of native heifers of Kumaon Himalaya
【24h】

Feeding of oak (Quercus leucotrichophora) leaves and evaluation for its potential inclusion in the feeding of native heifers of Kumaon Himalaya

机译：橡木（Quercus leucotrichophora）叶的饲喂及其在库曼喜马拉雅山本地小母牛的饲喂中的潜在评价

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

After an initial survey on feeds and feeding practices at Kumaon Himalaya, the potential of oak leaves feeding was evaluated in six native heifers (Bos indicus; 101.5 kg BW, 18–24 months) in a partial switch-over design involving two animals each on each treatment at a time. The feeding treatments involved high and low levels of oak leaves (Quercus leucotrichophora, oak leaves (OL)) supplemented to local mixed grass hay (GH) which were GH (G1), GH + low level (42.5 %) of OL (G2) and GH + high level (63.6 %) of OL (G3). The feeding trial for each treatment was conducted for 40 days that ended with a digestibility trial of 6-day duration. The dry matter (DM) intake (kg/day) was non-significantly higher in G3 (3.52) than G2 (3.11) and G1 (2.96). Intake of crude protein (CP) (g/day) was significantly (P < 0.001) higher in both G2 and G3 than G1. The digestibility of DM, CP, organic matter, ether extract and total carbohydrates increased (P < 0.001) linearly in OL-fed groups as compared to control. The total digestible nutrients (TDN) (kg/day) intake was significantly higher (P < 0.05) in G3 compared to G1, but it was comparable between G1 and G2. Intake of DM, CP, digestible CP (DCP) and TDN/metabolizable energy (ME) per kilogram metabolic body weight was significantly higher (P < 0.01) in G3 than G2 which in turn was also higher (P < 0.01) than G1. The animals under G1 had negative gain (?50 g/day) compared to 146 and 306 g/day in G2 and G3, respectively. Feeding of OL reduced serum urea and creatinine level and supported serum protein concentration better in G3 compared to G2. The feeding of cattle on GH alone was lacking in both energy and protein for sustaining minimum levels of production, whereas in combination with OL at 36.4:63.6 ratios supported minimum level of production (ADG 300 g) with near nutritional adequacy for major nutrients (CP, DCP, TDN, ME) but with a caution for the minor nutrients like calcium and phosphorus that need to be supplemented.
机译：在Kumaon喜马拉雅山对饲料和喂养方式进行了初步调查之后，在部分转换设计中，对六只本地小母牛（Bos indicus； 101.5 kg BW，18-24个月）进行了橡树叶喂养的潜力评估，每只两只动物每次处理一次。饲喂处理涉及高和低水平的橡树叶（栎叶栎，橡树叶（OL）），补充当地的混合草干草（GH），其中GH（G1），GH +低水平（42.5％）的OL（G2） GH +高水平（63.6％）的OL（G3）。每种处理的饲喂试验进行了40天，最后以6天的消化率试验结束。 G3（3.52）中的干物质（DM）摄入量（kg /天）明显高于G2（3.11）和G1（2.96）。 G2和G3中的粗蛋白（CP）摄入量（g /天）均显着（P <0.001）高于G1。与对照组相比，OL饲喂组的DM，CP，有机物，醚提取物和总碳水化合物的消化率线性增加（P <0.001）。与G1相比，G3中的总可消化营养素（kg /天）摄入量显着更高（P <0.05），但在G1和G2之间相当。 G3中每千克代谢体重的DM，CP，可消化CP（DCP）和TDN /代谢能（ME）的摄入量显着高于G2（P <0.01），而G2也高于G1（P <0.01）。 G1组动物的增重为负（约50 g /天），而G2和G3组分别为146和306 g /天。与G2相比，OL的喂养降低了G3中的血清尿素和肌酐水平，并更好地支持了血清蛋白浓度。仅以GH喂养牛就缺乏维持最低生产水平的能量和蛋白质，而与OL以36.4：63.6的比例配合使用可支持最低生产水平（ADG 300克），且主要营养成分（CP）的营养充足，DCP，TDN，ME），但对于需要补充的微量营养元素（例如钙和磷）要谨慎。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号