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丹麦奶农对体外胚胎生产和基因组选择生产的公牛精液的接受程度和使用意愿。

Danish dairy farmers' acceptance of and willingness to use semen from bulls produced by means of in vitro embryo production and genomic selection.

机构信息

Department of Food and Resource Economics, University of Copenhagen, Frederiksberg C 1958, Denmark.

Department of Food and Resource Economics, University of Copenhagen, Frederiksberg C 1958, Denmark.

出版信息

J Dairy Sci. 2021 Jul;104(7):8023-8038. doi: 10.3168/jds.2020-19210. Epub 2021 Apr 30.

Abstract

A novel technology combining in vitro production and genomic embryo selection is currently under development in dairy cattle breeding. Adoption of this technology will probably accelerate genetic progress toward the main breeding goals of economic interest, as well as allow selection for traits of societal concern such as decreased methane emissions and improved animal welfare. However, dairy farmers, and especially organic farmers, could find the technology morally questionable and reject its use. This cross-sectional study surveyed Danish dairy farmers' general acceptance of the combined technology and their reported likelihood of using semen produced with it. Drawing on diffusion theory, a questionnaire was developed to examine the way farmers discover and communicate about new technological breeding options, and to measure the factors which predict acceptance and likelihood of adopting the technology. The questionnaire was sent to a randomly selected sample of organic and conventional dairy farmers in Denmark, and 85 organic and 71 conventional farmers (41% response rate) completed it. Seventy-six percent of farmers reported that they would be likely to use semen from bulls derived from the technology. A majority (61%) also found the technology acceptable, but many (33%) were unsure or undecided. Most farmers saw the technology as beneficial, but ethical reservations were aired by around a fifth of the farmers. There were no differences between organic and conventional farmers in likelihood of using, perceived utility, and ethical reservations about the technology. Self-reported idealistic organic farmers showed lower acceptance of the technology, but reported similar likelihood of using semen produced by it. Young farmers (20-39 yr) exhibited higher acceptance of the technology. Larger producers (in terms of number of cows) were more likely to report that they will use and accept the technology. We conclude that it is likely that semen from the technology combining in vitro production and genomic selection would be widely used by both organic and conventional farmers provided that costs can be kept low, and that there are advantages in terms of achieving breeding goals. Structural developments, growth in size of dairy farms, acceptance by young farmers, and the fact that economic incentives (and even ethical arguments) seem to favor the technology all point to this conclusion.

摘要

一种将体外生产和基因组胚胎选择相结合的新技术目前正在奶牛养殖业中开发。采用这项技术可能会加速朝着主要经济利益的育种目标的遗传进展,同时也允许选择与社会关注的性状相关的特征,例如减少甲烷排放和改善动物福利。然而,奶牛养殖户,特别是有机养殖户,可能会发现这项技术在道德上存在问题,并拒绝使用。本横断面研究调查了丹麦奶牛养殖户对综合技术的普遍接受程度,以及他们报告的使用该技术生产的精液的可能性。利用扩散理论,制定了一份问卷,以检查养殖户发现和交流新的繁殖选择的方式,并衡量预测接受和采用该技术的因素。该问卷被发送给丹麦的有机和常规奶牛养殖户的随机样本,85 名有机养殖户和 71 名常规养殖户(41%的回复率)完成了问卷。76%的养殖户报告说,他们很可能会使用来自该技术的公牛的精液。大多数(61%)还认为该技术是可以接受的,但许多(33%)人不确定或犹豫不决。大多数养殖户认为该技术是有益的,但约有五分之一的养殖户提出了伦理保留意见。有机养殖户和常规养殖户在使用意愿、感知效用和对技术的伦理保留方面没有差异。自认为理想主义的有机养殖户对该技术的接受程度较低,但报告说使用该技术生产的精液的可能性相似。年轻的养殖户(20-39 岁)对该技术的接受程度较高。奶牛数量较多的大型养殖户(按奶牛数量计)更有可能报告他们将使用和接受该技术。我们得出的结论是,如果能够保持低成本,并且在实现繁殖目标方面具有优势,那么这项将体外生产和基因组选择相结合的技术生产的精液很可能会被有机养殖户和常规养殖户广泛使用。结构发展、奶牛场规模的增长、年轻养殖户的接受程度,以及经济激励(甚至伦理论点)似乎有利于这项技术的事实,都指向了这一结论。

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