...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Veterinaria Brno >Correlations of Dietary Crude Protein and Gross Energy on Blood Glucose and Urea, Milk Urea and Lactose Concentrations in Lactating Ewes
【24h】

Correlations of Dietary Crude Protein and Gross Energy on Blood Glucose and Urea, Milk Urea and Lactose Concentrations in Lactating Ewes

机译：日粮粗蛋白和总能量与泌乳母羊血糖和尿素，乳汁尿素和乳糖浓度的关系

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Concentrations of scrum glucose (SG) and urea (SU) milk lactose (ML) and urea (MU) and their relationships to dietary gross energy (GE) and crude protein (CP) were studied in 16 lactating ewes in Urmia Iran Ewes were aged 3 to 5 years and were bred in a closed pen They were fed alfalfa hay pasture grass concentrate and corn silage Each lactating ewe was nursing a single lamb Five ml of blood from v jugularis 50 ml milk and 200 g feed mixture were collected at 15 day intervals up to 135 days (9 samples) Serum glucose and urea concentrations were evaluated using a spectrophotometer milk lactose m Polarimeter gross energy by calculation method and crude protein by Kjeldahl methods The mean values for dietary GE CP SG SU MU and ML were 2 39 Mcal/kg/DM 14 1% food/DM, 2 69 465 3 67 mmol/1 and 4 8 mg/dl milk respectively Significant differences (P < 0 01) were found for scrum and milk indicators during the milking periods among the sampling times Scrum urea and milk urea irregularly increased while serum glucose and milk lactose irregularly decreased Positive correlations were found (P < 0 05) between SU/MU (r = 0 45) MU/GE (r = 0 75) MU/CP (r = 0 70) and SU/CP (r = 0 97) Negative correlations (P < 0 05) were found between MU/SG (r = -0 17) SU/ML (r = 0 20) and MU/ML (r = 0 24) Based on results It is concluded that urea glucose and lactose would be appropriate variables in the prediction of crude protein and gross energy concentration of diet in lactating ewes
机译：在Urmia伊朗母羊的16只泌乳母羊中，研究了血清葡萄糖（SG）和尿素（SU）的牛奶乳糖（ML）和尿素（MU）的浓度及其与饮食总能量（GE）和粗蛋白（CP）的关系。 3到5年并在封闭的钢笔中饲养。给它们饲喂苜蓿干草牧草浓缩物和玉米青贮饲料。每头哺乳的母羊都哺育一只羔羊。在第15天时，从v v jugularis中抽出5 ml血液50 ml牛奶和200 g饲料混合物间隔最长达135天（9个样品），使用分光光度计测定牛奶中的葡萄糖和尿素的浓度。乳糖乳糖m通过计算方法评估旋光仪的总能量，并通过凯氏定氮法评估粗蛋白。膳食GE CP SG SU MU和ML的平均值为2 39 Mcal / kg / DM 14 1％食品/ DM，分别在两次采样时间之间的挤奶期间，血清指标和牛奶指标存在显着差异（P <0 01），差异分别为2 69 465 3 67 mmol / 1和4 8 mg / dl Scrum尿素和牛奶尿素不规则增加SU / MU（r = 0 45）MU / GE（r = 0 75）MU / CP（r = 0 70）与SU / CP之间的正相关性（P <0 05）被发现（r = 0 97）在MU / SG（r = -0 17）SU / ML（r = 0 20）和MU / ML（r = 0 24）之间发现负相关（P <0 05）基于结果结论是尿素葡萄糖和乳糖将是预测泌乳母羊粗蛋白和日粮总能量浓度的适当变量。

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