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首页> 外文期刊>New Zealand journal of agricultural research >Wool production of different breeds of mixed-age ewes on hill country
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Wool production of different breeds of mixed-age ewes on hill country

机译:丘陵地区不同品种的混龄母羊的羊毛生产

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Abstract Greasy fleece weight, staple length, quality number, character, and severity of staple unsoundness and cotting were recorded from Romney, Coopworth, Perendale, Cheviot, and Dorset-Romney ewes over 7 years. All breeds were grazed together except during mating. Romney had the heaviest fleece weight followed by Coopworth, Perendale, Dorset-Romney and Cheviot. Fleece weights increased to 3 or 4 years of age and declined to 5 years of age, Coopworth and Perendale showing the greatest decline. All breeds except Romney showed a decline in fleece weight associated with fertility status, dry ewes having the heaviest fleeces. Romney ewes rearing their own single lamb had higher fleece weights than dry ewes. The subjectively assessed fleece characteristics were not influenced by fertility status. Romney and Coopworth had a higher proportion of cotted fleeces than the other breeds and Cheviot had the highest proportion of fleeces with staple unsoundness. Increased staple unsoundness was associated with lower...
机译:摘要从Romney,Coopworth,Perendale,Cheviot和Dorset-Romney母羊记录了7年多的油腻羊毛重量,订书钉长度,质量数,特征以及订书钉不牢固和严重的情况。除交配期间外,所有品种均放牧在一起。罗姆尼的羊毛重量最重,其次是库普沃思,佩伦代尔,多塞特-罗姆尼和切维奥特。羊毛重量增加到3或4岁,下降到5岁,库普沃思和佩伦代尔的下降幅度最大。除罗姆尼外,所有品种均显示出与受精状况相关的羊毛重量下降,干母羊的羊毛重量最大。饲养自己的单只羔羊的罗姆尼母羊的羊毛重量比干母羊高。主观评估的羊毛特性不受生育状况的影响。罗姆尼和库普沃思的苏格兰绒毛比例比其他品种更高,而切维奥夫的绒毛比例最高,主要是不规则的。订书钉不牢固的增加与较低的...

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