Selective breeding trait preferences for farmed tilapia among low-income women and men consumers in Egypt: Implications for pro-poor and gender-responsive fish breeding programmes
Selective breeding trait preferences for farmed tilapia among low-income women and men consumers in Egypt: Implications for pro-poor and gender-responsive fish breeding programmes
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DOI：
10.1016/j.aquaculture.2020.735042
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发表时间：
2020-08
期刊：
影响因子：
4.5
通讯作者：
S. Murphy;H. Charo-Karisa;S. Rajaratnam;S. Cole;C. McDougall;A. Nasr-Allah;Diaa Kenawy;Mohamed Y. Abou Zead;M. L. van Brakel;L. K. Banks;N. A. Ibrahim
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文献类型：
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作者：
S. Murphy;H. Charo-Karisa;S. Rajaratnam;S. Cole;C. McDougall;A. Nasr-Allah;Diaa Kenawy;Mohamed Y. Abou Zead;M. L. van Brakel;L. K. Banks;N. A. Ibrahim
许多研究强调了埃及罗非鱼水产养殖的前景广阔以及基因改良品系在这一发展中的作用，例如阿巴萨尼罗罗非鱼（Oreochromis niloticus，Linneaus，1758）。然而，很少有研究探讨水产养殖发展与低收入消费者鱼类需求变化之间的联系。本研究结合了家庭预算问卷和 2017 年市场旺季进行的形态测量罗非鱼性状排名，以研究埃及低收入女性和男性消费者的罗非鱼消费模式和偏好。采用方差检验分析和分层逻辑回归模型来确定性别、年龄、教育状况、家庭规模、儿童数量、食物依赖率和地点对罗非鱼消费和性状偏好的影响。结果显示，下埃及和上埃及之间的罗非鱼消费量存在显着差异。罗非鱼性状排名的最大异质性表现在对总体重、体宽、体长和罗非鱼头部性状的偏好。模型预测，下埃及有孩子的年轻女性消费者更有可能消费较小尺寸的罗非鱼，并且更喜欢较大的罗非鱼头部特征。这项研究为考虑采用扶贫和性别敏感育种目标的遗传选择计划提供了低收入消费者对罗非鱼性状偏好的第一个证据基础。
A number of studies have highlighted the promising growth of Egyptian tilapia aquaculture and the role of genetically improved strains in this development, such as the Abbassa Nile tilapia (Oreochromis niloticus, Linneaus, 1758). However, few studies have explored the link between aquaculture development and changes in fish demand among low-income consumers. This study combines household budgeting questionnaires and morphometric tilapia trait rankings conducted in the peak market season of 2017 to examine patterns of tilapia consumption and preferences among low-income women and men consumers across Egypt. Analysis of variance tests and a hierarchical logistic regression model were employed to determine effects of sex, age, educational status, household size, presence of children, food dependency ratio and location on tilapia consumption and trait preferences. Results showed significant differences in tilapia consumption between Lower and Upper Egypt. Greatest heterogeneity in tilapia trait rankings was found in preferences for total body weight, as well as for body width, body length and tilapia head traits. Models predicted that younger women consumers with children in Lower Egypt were more likely to consume smaller tilapia sizes and prefer larger tilapia head traits. This study offers the first evidence base of tilapia trait preferences of low-income consumers to genetic selection programmes considering the adoption of pro-poor and gender-responsive breeding objectives.