中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 放牧制度对内蒙古细毛羊羊毛生产的影响 草业学报 1999 (3) 22-30
Position: Home > Articles > The influence of different grazing systems on wool production and qualities of chinese merino fine sheep in inner mongolian steppe Acta Prataculturae Sinica 1999 (3) 22-30

放牧制度对内蒙古细毛羊羊毛生产的影响

作  者：
汪诗平
单  位：
中国科学院植物研究所内蒙古草原生态系统定位研究站
关键词：
放牧率;放牧方式;羊毛生产
摘  要：
实验结果表明:夏秋季(6 月20 日～10 月5 日)不同放牧率的绵羊轮牧期间,羊毛生产性能各指标差异不显著,但对以后各季节有明显的影响,放牧率较轻的组(1.33～4.00羊/hm 2)差异不显著,放牧率较重的组(5.33～6.67 羊/hm 2)差异也不显著,而两组之间存在显著或极显著的差异;不同放牧方式间季节性差异均不显著。各放牧率和各放牧方式下全年羊毛生长均具明显的季节性,夏秋季生长最快,冬春季生长最慢,冬春季羊毛生长速度和净毛生长率分别只有夏秋的1/2～3/4 和1/3 左右;羊毛细度也以冬春季最细,放牧率大的绵羊甚至出现“饥饿痕”。放牧率较轻的绵羊全年净毛量显著大于放牧率较重的绵羊,不同放牧方式间差异不显著;当采食量在维持需要以上时,体重和羊毛同时增长,当采食量在维持需要以下时,体重下降,体组织分解释放能量供羊毛继续生长,但生长速度和净毛生长率变慢。
译  名：
The influence of different grazing systems on wool production and qualities of chinese merino fine sheep in inner mongolian steppe
作  者：
WANG Shi ping (Inner Mongolia Grassland Ecosystem Research Station, Institote of Botany, CAS, Beijing 100093)
关键词：
stocking rates; rotational and continuous grazing; woool production
摘  要：
The experiment was conducted in 1993～1994 at IMGERS. The grazing systems included different stocking rates (1.33, 2.67, 4.00, 5.33 and 6.67 sheep/hm 2) under rotational grazing and different grazing pattern (rotational and continuous grazing, the stocking rates were 4.00 sheep/hm 2) from May 20 to October 5. The results showed that there were no significant difference (P>0.05) of influence for different grazing pattern to wool performance and the difference of influence of different stocking rates to wool performance (including growth rate and quality) varied with different seasons there were no significant difference among stocking rates during summer autumn season (June 20～October 5) but the growth rate (mm/d) of wool absolate length, the productive rate of net wool weight (g/d) and qualities (including absolate length (cm), strength (g), elongation (%) and average diameter (mm) were better for lighter stocking rates (1.33～4.00 sheep/hm 2) than heavier stocking rates (5.33～6.67 sheep/hm 2). There were seasonal growth pattern for all stocking rates. Average daily growth rate and productive rate of net wool weight were faster during warm season and slower during cold scason and they were positive coorelation between body weight gain and ambient temperature.

相似文章

导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46