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Genetic preferences of smallholders and trypanotolerant cattle in southern Burkina Faso.

机译:布基纳法索南部小农户和锥虫耐受牛的遗传偏好。

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摘要

This study investigates livestock owners preferences for cattle characteristics in southern Burkina Faso. The most important animal traits were identified using focus group interviews with cattle owners, recommendations from animal scientists and formal surveys. Preferences were assessed using ranking and rating schemes and conjoint analysis. Baoule, Zebu and Mere were the breeds of cattle raised in the area.;Focus group interviews and recommendations from animal scientists provided seven traits of bulls and seven traits of cows. The most ranked traits for bulls were fitness to traction, disease resistance, selectivity in feed and temperament. The most highly ranked traits of cows were fecundity, milk yield and disease resistance.;Producer survey data indicated three main production systems and various herd structures. Survey data also indicated that Baoule were preferred to Zebu and Mere only in disease resistance and grazing habits while Zebu were preferred to Baoule in several traits such as milk yield, size, fecundity, weight gain and traction ability.;Assessment of farmers' preferences for Baoule showed that involvement in subsistence system, being an indigenous farmer and the fact that some farmers regarded Baoule as having an "overall desirability" relative to Zebu and Mere were significant determinants of the adoption of Baoule.;Finally, conjoint analysis provides partworths for the levels of traits and the relative importance of the traits considered in the study. Disease resistance, good fitness to traction and high fertility were the most preferred traits of bulls while fecundity, disease resistance and feeding ease were the most important traits for cows. Weight gain and milk yield were less preferred.;This study results indicate that the potential role for an effective genetic research for livestock development in the area needs to use a participatory approach so as to integrate farmers' preferences in the breeding program.;The use of conjoint analysis can also help design more effective livestock breeding programs. The increasing adoption of Zebu may indicate the need for breed improvement schemes focussing on ways of adapting traits of Zebu by crossbreeding Zebu with trypanotolerant breed such as Baoule.
机译:这项研究调查了布基纳法索南部牲畜主人对牲畜特征的偏好。通过与牛主进行的焦点小组访谈,动物科学家的建议和正式调查,确定了最重要的动物性状。使用排名和评级方案以及联合分析评估偏好。 Baoule,Zebu和Mere是该地区饲养的牛的品种。焦点小组的访谈和动物科学家的建议提供了7个公牛性状和7个牛性状。公牛最重要的特征是对牵引力的适应性,抗病性,饲料的选择性和性情。奶牛的最高性状是生育力,产奶量和抗病性。生产者调查数据表明,这三个主要生产系统和不同的畜群结构。调查数据还表明,就牛奶产量,大小,繁殖力,增重和牵引能力等几个特征而言,仅在抗病性和放牧习惯方面,鲍勒优先于Zebu和Mere,而Zebu优先于Baoule。鲍勒(Baoule)表明,作为一个土著农民,它参与了生计系统,而且一些农民认为鲍勒(Bouule)相对于Zebu和Mere具有“总体可取性”,这是采用鲍勒(Baoule)的重要决定因素。特质水平和研究中所考虑特质的相对重要性。抗病性,良好的牵引力适应性和高生育力是公牛最喜欢的特征,而繁殖力,抗病性和喂食舒适性是母牛最重要的特征。体重增加和产奶量不那么可取。;该研究结果表明,对该地区畜牧业进行有效遗传研究的潜在作用需要采用参与性方法,以便将农民的喜好纳入育种计划。联合分析还可以帮助设计更有效的牲畜育种程序。瘤牛的采用日益增加,这可能表明需要有一个改良计划,着重于通过将瘤牛与锥虫耐性品种(例如鲍勒)杂交来适应瘤牛性状的方法。

著录项

  • 作者

    Tano, Kouadio.;

  • 作者单位

    University of Manitoba (Canada).;

  • 授予单位 University of Manitoba (Canada).;
  • 学科 Agricultural economics.;Animal sciences.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 203 p.
  • 总页数 203
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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