Breeds and Breeding System of Indigenous and Crossbred Goats in Nepal

N. Bhattarai, N. Gorkhali, M. Kolakshyapati, S. Sapkota
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引用次数: 8

Abstract

Goats are the indispensable component of rural economy in Nepal where 10.98 million goats accounting for 45.3% of total ruminants contribute to 20.3% of the total meat production and 49.2 million US dollar in the national economy. Being popular as “poor man’s cow” and “living cheque,” they significantly contribute to food, nutritional, and economic security of the marginalized farmers creating employment opportunities in the country. This chapter has tried to review the existing breeds, their breeding systems, challenges and way forward to enhance production and productivity of goats. Findings revealed that Nepal is endowed with four major indigenous genetic resources of goats and their crosses with Boer, Jamnapari, Barbari, Sirohi, etc. Occasionally, native goat breeds of Nepal were crossed with Kiko and Damascus as well. Breeding of goats in Nepal is mainly based on selection, pure breeding within indigenous flock, and crossbreeding to the available exotic breeds. There have been some biotechnological approaches applied in goat breeding and evaluation of native breeds. Estrus synchronization followed by artificial insemination is currently being practiced. Goats, being the most popular and easy source of household income and family nutrition in Nepal, could be the important source of national revenue provided with improved breeding and other husbandry practices. Chyangra in the haplogroup B2 in their genetic four mtDNA haplogroups of domestic goats. no between the geographic regions of and relationships among goat These sequences were compared with published data of other domestic goats from neighboring countries India, Pakistan, and China) to determine the relationship of Nepalese goats among goat resources of the region. The study revealed certain level of gene flow among the neighboring goat populations. The complex mtDNA diversity and structure identified among indigenous Nepalese goats can be explained by the gene flow through ancient trading and current “free” movement of goats from/to the geographic vicinities in India and China.
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尼泊尔本地山羊和杂交山羊的品种和繁殖系统
山羊是尼泊尔农村经济不可缺少的组成部分。尼泊尔有1098万只山羊,占反刍动物总数的45.3%,占肉类总产量的20.3%,为国民经济贡献了4920万美元。它们被称为“穷人的牛”和“生活支票”,为边缘农民的粮食、营养和经济安全做出了重大贡献,并在该国创造了就业机会。本章试图审查现有的品种,它们的育种系统,挑战和前进的道路,以提高山羊的产量和生产力。调查结果显示,尼泊尔拥有4种主要的本土山羊遗传资源,以及它们与Boer、Jamnapari、Barbari、Sirohi等的杂交。偶尔,尼泊尔的本地山羊品种也与Kiko和大马士革杂交。尼泊尔山羊的育种主要基于选择、本地羊群的纯育种以及与现有外来品种的杂交。一些生物技术方法已应用于山羊的育种和乡土品种的评价。目前正在实行的是同步发情,然后人工授精。山羊是尼泊尔最受欢迎和最容易获得的家庭收入和家庭营养来源,通过改进饲养和其他饲养方法,山羊可以成为国家收入的重要来源。在家山羊遗传的4个mtDNA单倍群中,Chyangra属于B2单倍群。将这些序列与邻近国家(印度、巴基斯坦和中国)的其他国内山羊的已发表数据进行比较,以确定尼泊尔山羊与该地区山羊资源之间的关系。该研究揭示了邻近山羊种群之间一定程度的基因流动。在尼泊尔本土山羊中发现的复杂mtDNA多样性和结构可以通过古代贸易和目前山羊在印度和中国地理附近的“自由”流动的基因流动来解释。
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