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作 者:苏文娟[1]
机构地区:[1]甘肃省皇城绵羊育种试验场,甘肃肃南734031
出 处:《草食家畜》2009年第3期36-39,共4页Grass-Feeding Livestock
摘 要:本文测定了高寒地区细毛羊不同管理条件、不同生长阶段的净毛生长速度和羊毛纤维直径,分析了其变异性。结果表明,每日净毛生长量在不同生长阶段不同类型羊只及管理群之间存在显著差异(P<0.01)。成年种公羊不同生长阶段羊毛纤维直径差异不显著(P>0.05),幼年公羊差异显著(P<0.05),成幼年母羊不同生长段纤维直径差异极显著(P<0.001)。每日净毛生长速度以成年公羊(9.935~24.196g/d)最高,幼年公羊(6.687~14.919g/d)次之。母羊补饲条件和品质基础好的成(4.63~15.41g/d)、幼年母羊(6.378~13.433g/d)要比补饲水平及品质基础一般的成(3.028~7.792g/d)、幼年母羊(4.201~9.509g/d)生长速度快。羊毛生长不同阶段的生长速度和纤维直径存在显著差异,枯草期放牧及枯草期补饲水平、羊只本身的品质基础是影响羊毛生长速度和纤维细度的直接因素。研究表明,进入枯草期,通过调整放牧和补饲管理方法控制羊只营养的均衡供给,提高细羊毛的质量还是有很大空间的。This study menstruates the wool growth speed and the wool fiber diameter of fuzz sheep in the alpine pasturing area under different conditions of management and growth, and analyses its variability. The result shows, a notable difference exists in net wool growth quantity per day between different types and different conditions of management and growth (P〈0.01).The grown ram in different ages do not have notable difference (P〉0.05), but not child ram (P〈0.05), and the child and grown ewe has a highly notable difference in wool fiber diameter between different ages(P〈0.001).The net wool growth quantity per day tops in grown ram (9.935-24.196 g/d),and follows by child ram (6.687-14.919 g/d). The grown ewe (4.63-15.41 g/d) and the child ewe (6.378-13.433 g/d) which has a better feed and quality is growing much faster than the normal grown ewe (3.028-7.792 g/d) and the child ewe (4.201-9.509 g/d).A notable difference exists in the wool growth speed and the wool fiber diameter in different ages of sheep. The feed and management levels are the direct complication to affect the wool growth speed and the wool fiber diameter. The study shows during the dry season, by adjusting browse and feeding management to control the sheep's alimentation supply, the quality of wool can be improved.
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