Breeding Practices and Traits of Economic Importance for Indigenous Chicken in South Sudan

T. Muasya, Balentino Deng Wol, A. K. Kahi
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Abstract

The current study aimed at generating essential information on breeding practices and traits of the economic importance of indigenous chicken (IC) farmers in the three historical regions of South Sudan (Bhar el Gazel, Upper Nile and Equatoria). Data on perceived important traits according to farmers (n=385), marketers (n=100) and consumers (n=100) were collected and analyzed through computation of indices which represented the average weight of all ranks of a specific trait. The results of the indices indicated that farmers selected body weight (3.16), disease tolerance (3.02), drought tolerance (2.70) and fast growth rate (2.44) for breeding cocks. For hens, high indices were observed on disease tolerance (2.95), hatchability (2.78), egg size (2.63), and egg number (2.48). Large Baladi (LB) and Naked Neck (Na) genotypes were the dominant genotypes raised by 64.8% and 27.7% of all farmers, respectively, for their superiority in mothering ability (40%), heat tolerance (20%) and disease tolerance (17%). Traits perceived by farmers as the primary economic importance were body weight (0.207), survival rate (0.11), egg yield (0.084) and meat quality (0.084). While marketers perceived body weight (0.234), egg yolk colour (0.150), disease tolerance (0.145), and plumage colour (0.133) as the most important traits, consumers emphasize egg yolk colour (0.202), plumage colour (0.204), and survival rate (0.156) as crucial. Body weight had a positive and favourable significant correlation with growth rate (0.561), egg fertility (0.412), disease tolerance (0.062), and a negative and unfavourable correlation with meat quality (-0.191). Meat quality was negatively correlated with fertility (-0.312) and growth rate (-0.381). Prolificacy had positive and favourable correlations with drought tolerance (0.603), disease tolerance (0.091) and heat tolerance (0.091). Regarding the preference rank correlation of marketers and consumers, positive and significant correlations were reported for body weight with growth rate (0.092) and meat quality (0.056). IC ecotypes that can perform well and are adaptable to the local environments in South Sudan should be identified. Selections should be based on traits preferred by farmers, marketers, and consumers.
南苏丹地方鸡的养殖实践和经济重要性特征
目前的研究旨在获得有关南苏丹三个历史地区(Bhar el Gazel、上尼罗河和赤道省)土鸡(IC)养殖户的养殖实践和经济重要性特征的基本信息。收集农民(n=385)、营销商(n=100)和消费者(n=100)对重要性状的感知数据,通过计算代表某一特定性状各等级平均权重的指数进行分析。结果表明,养殖户选择的种鸡体重(3.16)、抗病性(3.02)、抗旱性(2.70)和生长速度(2.44)均为最佳。母鸡的疾病耐受性(2.95)、孵化率(2.78)、蛋大小(2.63)和蛋数(2.48)指数较高。大巴拉迪(LB)和裸颈(Na)基因型为优势基因型,分别为64.8%和27.7%,在育母能力(40%)、耐热性(20%)和抗病性(17%)方面具有优势。农民认为最重要的经济性状是体重(0.207)、存活率(0.11)、产蛋量(0.084)和肉质(0.084)。营销人员认为体重(0.234)、蛋黄颜色(0.150)、抗病能力(0.145)和羽毛颜色(0.133)是最重要的特征,而消费者则强调蛋黄颜色(0.202)、羽毛颜色(0.204)和存活率(0.156)是最重要的特征。体重与生长率(0.561)、受精率(0.412)、抗病性(0.062)呈显著正相关(-0.191),与肉质呈显著负相关(-0.191)。肉质与肥力(-0.312)和生长率(-0.381)呈负相关。繁殖能力与抗旱性(0.603)、抗病性(0.091)和耐热性(0.091)呈正相关。在营销人员和消费者的偏好等级相关性方面,体重与生长率(0.092)和肉质(0.056)呈显著正相关。应该确定在南苏丹表现良好并适应当地环境的IC生态型。选择应基于农民、营销商和消费者喜欢的性状。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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