| 青海省海晏县放牧牦牛体重及血清生化指标的全年监测 |
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| 引用本文： | 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). |
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| 作者姓名： | 范小红 杨得玉 郝力壮 刘书杰 柴沙驼 牛建章 王迅 |
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| 作者单位： | 省部共建三江源生态与高原农牧业国家重点实验室,青海省高原放牧家畜动物营养与饲料科学重点实验室,西宁 810016;青海高原牦牛研究中心,西宁 810016;青海大学畜牧兽医科学院,西宁 810016 |
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| 基金项目： | 国家自然科学基金，国家重点研发计划，国家国际科技合作专项项目，国家重点基础研究发展计划(973项目)，青海省重大科技平台建设项目 |
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| 摘 要： | 本试验旨在探明青海省主要牦牛饲养区海晏县牦牛的营养状况,为制定添补措施提供科学依据。于2015-09—2016-08跟踪测定了青海省海晏县牧户草场天然牧草产量以及牦牛干物质采食量、体重和血清生化指标,同时分析平均日增重与血清生化指标的相关性。结果表明:天然牧草可食草产量7月份高于其他月份;春季牦牛干物质采食量显著高于秋、冬季(P0.05),秋季显著低于其他季节(P0.05);1月份、2月份、3月份、10月份、11月份、12月份牦牛平均日增重呈现负增长,4月份后逐渐上升,6月份、7月份显著高于其他月份(P0.05);血清葡萄糖(GLU)的含量7月份显著高于除6月份、10月份外的其他月份(P0.05);2月份、3月份血清尿素氮(UN)含量及碱性磷酸酶(ALP)活性低于其他月份;由相关性分析可知,平均日增重与血清UN含量呈显著的正相关(P0.05)。综合得出,青海省海晏县10月份至次年3月份为饲草供给不足,牦牛平均日增重呈现负增长,4月份后平均日增重逐渐上升,因此,建议轮牧的放牧形式下,10月份至次年3月份,采用天然草场配合补饲饲料的饲养方式。
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| 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 |
Whole Year Detection of Body Weight and Serum Biochemical Indicators of Grazing Yaks in Haiyan County,Qinghai Province |
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| FAN Xiaohong,YANG Deyu,HAO Lizhuang,LIU Shujie,CHAI Shatuo,NIU Jianzhang,WANG Xun.Whole Year Detection of Body Weight and Serum Biochemical Indicators of Grazing Yaks in Haiyan County,Qinghai Province[J].Acta Zoonutrimenta Sinica,2017,29(10). |
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| Authors: | FAN Xiaohong YANG Deyu HAO Lizhuang LIU Shujie CHAI Shatuo NIU Jianzhang WANG Xun |
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| 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. |
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| Keywords: | Haiyan county yak dry matter feed intake average daily gain serum biochemical indicator dynamic change |
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