定义动物品种的有效育种目标
Robin Wellmann1, Nicolas Gengler2, Jörn Bennewitz3
1Department of Animal Genetics and Breeding, University of Hohenheim, 70599, Stuttgart, Germany. r.wellmann@uni-hohenheim.de.
Genetics, selection, evolution : GSE
|November 22, 2023
概括
一种新的动物育种方法使用利基概念来定义超越利的品种适应性. 这种方法通过考虑生产者和消费者的满意度来优化育种目标,确保为各种业主需求提供有效的育种目标.
科学领域:
- 动物繁殖 动物繁殖
- 定量遗传学 是一种定量遗传学.
- 人口遗传学 人口遗传学
背景情况:
- 传统的动物育种计划优化目标,假设利最大化.
- 这种假设往往是不准确的,需要一个通用的方法.
- 一个有效的育种计划必须提高品种适合其预期用途.
研究的目的:
- 开发一种通用的方法来优化动物育种中的育种目标.
- 在育种计划中超越利最大化假设.
- 将更广泛的业主和消费者满意度纳入育种目标优化中.
主要方法:
- 该研究引入了一种基于"利基概念"的通用方法.
- 一个品种的利基被定义为支持积极人口增长的环境.
- 该方法确定了最大限度地适应预期的利基市场的特征最佳性,将利函数替换为适应性函数.
主要成果:
- 一般化的方法定义了基于环境因素和人口增长的品种利基.
- 品种适应是通过生产者和消费者对动物和产品的满意度来衡量的.
- 该方法确定了在允许的繁殖目标范围内最大限度地适应特征的最佳特征.
结论:
- 只有当利是唯一的动机,价格反映消费者偏好时,建议的方法才与传统方法保持一致.
- 当利最大化或准确的价格反映得不到满足时,传统方法可能会产生无效的育种目标.
- 这种以利基为基础的方法提供了一个更有效的框架,特别是对于伴侣品种,填补了在育种目标优化中的关键缺口.
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