| 放牧强度对青年牦牛生长的影响 |
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| 引用本文： | 马存寿,宋仁德,冯生青,王援军,周玉青,米兴亮,张建新. 放牧强度对青年牦牛生长的影响[J]. 家畜生态, 2009, 0(1) |
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| 作者姓名： | 马存寿 宋仁德 冯生青 王援军 周玉青 米兴亮 张建新 |
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| 作者单位： | 青海省门源县畜牧兽医站;青海省玉树州畜牧兽医站; |
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| 基金项目： | 人事部高层次留学回国人才科研资助金(2005年);;日本学术振兴会科学研究费补助金 |
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| 摘 要： | 青年牦牛放牧强度试验结果表明:生长期牦牛在冬季和夏季个体增重与放牧强度都呈极显著的三次多项式回归关系(P<0.0001)。在不同放牧强度下,牦牛体重、日增重随着时间的变化分别呈极显著的二次多项式回归关系(P<0.0001)和显著的高次多项式回归关系(P<0.05);在试验期间,牦牛的个体增重与放牧强度呈明显的二次多项式回归关系(R2=1.00,P=0.077),每公顷增重与放牧强度均呈明显的线性回归关系(R2=0.971,P=0.110)。
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| 关 键 词： | 放牧强度 生长 青年牦牛 高寒草甸 |
Effects of Grazing Intensity on the Growth of Heifer Yak |
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| MA Cun-shou,SONG Ren-de,FENG Sheng-qing,WANG Yua-jun,ZHOU Yu-qing,MI Xing-liang,ZHANG Jian-xin. Effects of Grazing Intensity on the Growth of Heifer Yak[J]. Ecology of Domestic Animal, 2009, 0(1) |
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| Authors: | MA Cun-shou SONG Ren-de FENG Sheng-qing WANG Yua-jun ZHOU Yu-qing MI Xing-liang ZHANG Jian-xin |
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| Affiliation: | 1.Station of Animal and Veterinary Sciences of Menyuan County;Menyuan;Qinghai 810300;China;2.Station of Animal and Veterinary Sciences of Yushu County;Yushu;Qinghai 815000;China |
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| Abstract: | The results of grazing trial with Heifer yak showed that there are a extremely significant trinomial regression relationship(P<0.0001)between grazing intensities and total gain of live weight for yaks during winter and summer grazing seasons.Under different grazing intensities,there are an extremely significant binomial regression relationship(P<0.05)between grazing duration and total yak live weight and a significant polynomial regression relationship(P<0.0001)between grazing duration and daily gain of liv... |
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| Keywords: | grazing intensity growing heifer yak alpine meadow |
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