动物营养学报2017，Vol.29Issue(10)：3807-3818,12.DOI:10.3969/j.issn.1006⁃267x.2017.10.045
青海省海晏县放牧牦牛体重及血清生化指标的全年监测
Whole Year Detection of Body Weight and Serum Biochemical Indicators of Grazing Yaks in Haiyan County, Qinghai Province
摘要
Abstract
This study aimed to explore the nutritional status of yaks in Haiyan county, the main yak grazing ar?ea in Qinghai province, to provided scientific basis for the formulation of targeted supplement measures. The natural forage yield, and dry matter intake, body weight and serum biochemical indicators of grazing yaks in Haiyan county, Qinghai province were determined in September 2015 to August 2016, and the correlation be?tween average daily gain and serum biochemical indictors was analyzed. The results showed as follows: edible grass yield of natural pasture was higher in July than in other months; dry matter intake of grazing yaks was significantly higher in spring than in autumn and winter, and autumn was significantly lower than other seasons (P<0.05); average daily gain was negatively increased in January, February, March, October, November and December, after April, it was increased gradually, and June and July were significantly higher than other months ( P<0.05); serum glucose ( GLU) was significantly higher in July than in other months except June and October ( P<0. 05);serum alkaline phosphatase ( ALP) activity and urea nitrogen ( UN) content were lower in February and March than in other months;the correlation results showed that average daily gain had significant positive correlation with serum UN content ( P<0.05) . In conclusion, natural forage in October to March of the next year in Haiyan county, Qinghai province is undersupply, average daily gain of yaks is nega?tively increased, and is gradually increased after April, so it is suggested that under the condition of rotation grazing, feeding mode of natural forage combined with feed supplementation can be applied in October to March of the next year.关键词
海晏县/牦牛/干物质采食量/平均日增重/血清生化指标/变化动态Key words
Haiyan county/yak/dry matter feed intake/average daily gain/serum biochemical indicator/dynamic change分类
农业科技引用本文复制引用
范小红,杨得玉,郝力壮,刘书杰,柴沙驼,牛建章,王迅..青海省海晏县放牧牦牛体重及血清生化指标的全年监测[J].动物营养学报,2017,29(10):3807-3818,12.基金项目
国家自然科学基金(31660673) （31660673）
国家重点研发计划(2016YFD0500504?4) （2016YFD0500504?4）
国家国际科技合作专项项目(2015DFG31870) （2015DFG31870）
国家重点基础研究发展计划(973项目)(2012CB722906) （973项目）
青海省重大科技平台建设项目(2013?Z?Y03) （2013?Z?Y03）
