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Characterization of local chicken production systems and their potential under different levels of management practice in Jordan

机译:约旦不同管理水平下当地鸡生产系统的特征及其潜力

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This study aimed to characterize the local chickens and their production systems and to investigate the opportunities for improvement. The study was carried out in 18 villages in northern Jordan with the participation of 120 households. Data were collected by individual interviews and surveys supported with structured questionnaires. A scoring system was developed to study the effect of different levels of management on chicken performance. The main reasons for keep local chickens were egg production and generation of income. The main features of the production systems were improper housing and inadequate hygiene. Newcastle disease, predators, and parasites were the main causes of flock losses. Purchasing rate was controlled by the chickens’ phenotype, sex and age, and by season of year. The average flock size was 41.6 (±32.9) chickens per household, with a hen:cock ratio of 6.4:1. The average effective population size was 15.35, which indicated a high rate of inbreeding (5.52%). The main selection criterion adopted by farmers was egg production. There were positive significant correlations (p < 0.001) between management level and chickens’ performance. Hatchability, survivability, flock size, number of clutches, egg weight and egg mass were the major parameters that improved significantly with improvement in management level. Local chickens fulfil significant functions in the livelihood of rural smallholders; however, many constraints affected the efficiency of the production systems. Solutions should start with improving the management practices and establishing an effective breeding system.
机译:这项研究旨在表征当地鸡及其生产系统,并研究改进的机会。这项研究是在约旦北部的18个村庄进行的,有120户家庭参加。数据是通过结构化问卷支持的个人访谈和调查收集的。开发了一个评分系统来研究不同管理水平对鸡性能的影响。保留本地鸡的主要原因是鸡蛋生产和创收。生产系统的主要特点是住房不当和卫生不足。新堡病,捕食者和寄生虫是羊群损失的主要原因。购买率受鸡的表型,性别和年龄以及一年中的季节控制。每户平均鸡群大小为41.6(±32.9)只鸡,母鸡/公鸡的比率为6.4:1。平均有效种群数量为15.35,表明近交率很高(5.52%)。农民采用的主要选择标准是产蛋。管理水平与鸡的生长之间存在显着的正相关(p <0.001)。孵化率,存活率,鸡群大小,离合器的数量,蛋重和蛋重是随着管理水平的提高而显着改善的主要参数。当地鸡在农村小农户的生计中发挥着重要作用;但是,许多制约因素影响了生产系统的效率。解决方案应从改善管理实践和建立有效的育种系统开始。

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