伊拉克库尔德斯坦地区山羊生产性能综述

Kamal Mustafa
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引用次数: 0

摘要

两种山羊原产于伊拉克库尔德斯坦地区,即山地黑山羊主要用于肉类和牛奶生产,而Meriz山羊主要用于肉类和牛奶之外的毛发。这两个品种长期暴露在剧烈和严重的半干旱条件下,干旱,饲料短缺和流行疾病。因此,他们对这种环境的适应是以牺牲重要的经济特征为代价的。从这两个品种的有限研究来看,梅里兹山羊的体型似乎比黑山羊小,日增重相对较低,为0.068-0.140 kg。黑山羊似乎尤其具有提高产奶量的潜力,因为它的表现超出了压倒范围(127-189升)。一般来说,黑山羊的生育能力和繁殖能力相当低,通过激素治疗和/或冲洗可以提高繁殖性能,对精液特征的研究表明雄鹿是季节性繁殖者,特别是在梅里兹。然而,这两个品种没有很好地表征,需要做大量的工作来探索这些品种在经济性状方面的潜力。
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PERFORMANCE OF NATIVE GOATS IN KURDISTAN REGION OF IRAQ: A REVIEW
Two breeds of goats are native to Kurdistan region- Iraq, namely mountainous black goat is raised mainly for meat and milk production, and Meriz which is raised primarily for hair beside meat and milk. The two breeds were exposed over a long period of time to the vigorous and sever semi-dry conditions, drought, feed shortage and prevailing diseases. Hence their adaptation to such conditions was at the expense of important economic traits. From the limited work available for both breeds, it seems that Meriz characterized by smaller size than did black goat, and daily gain in weight is rather low for the two breeds being 0.068-0.140 kg. it seems that black goat in particular have a potential for improvement of milk yield because display over whelming range (127-189 L.). In general, fertility and prolificacy are rather low in black goat and an improvement of the reproductive performance was achieved by hormonal treatment and /or flushing and studies on semen traits revealed that bucks are seasonal breeders especially in Meriz. However, the two breeds are not well characterized and much work is needed to explore the potential of those breeds for economic traits.
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0.20
自引率
0.00%
发文量
16
审稿时长
20 weeks
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