The effects of alternative feeding strategies for broiler breeders on behaviour, physiology, productivity and welfare

肉种鸡替代饲养策略对行为、生理、生产力和福利的影响

• 批准号: 470617-2014
• 负责人: Widowski, Tina
• 金额: $ 4.16万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=577571
• 关键词: effects; alternative; feeding; strategies; broiler

Broiler breeder feed management is an important welfare and economic issue for the poultry industry. In order to limit problems such as obesity, lameness, and ascites, and maintain adequate reproductive capabilities, broiler breeders are feed restricted throughout their production, most severely during the rearing phase, and often exhibit signs of chronic hunger. In Canada, most producers restrict breeders with the use of a non-daily feeding schedule, a practice that is banned in some countries because of its purported insult to welfare. Yet, there has been little empirical data on the welfare implications of such practices, and none in terms of production data in commercial conditions. In this project, we propose to investigate the use of non-daily feeding schedules for female broiler breeders (who comprise up to 90% of the breeding flock) during rearing, in conjunction with promising alternative diets incorporating fibrous bulking agents and appetite suppressants. The effects of these feeding strategies on growth, behaviour, stress physiology, egg production and hatchability, gastrointestinal morphology, and Salmonella colonization will be studied in experimental and simulated commercial conditions to make science-based recommendations to the poultry industry.

肉鸡种鸡饲料管理是家禽养殖业的重要福利和经济问题。为了限制肥胖、跛行和腹水等问题，并保持足够的繁殖能力，肉鸡育种者在整个生产过程中都受到饲料限制，尤其是在饲养阶段，并且经常表现出长期饥饿的迹象。在加拿大，大多数生产者通过使用非每日喂养时间表来限制饲养者，这种做法在一些国家是被禁止的，因为它据称是对福利的侮辱。然而，几乎没有关于这种做法的福利影响的经验数据，也没有关于商业条件下的生产数据的数据。在这个项目中，我们建议调查在饲养过程中对雌性肉鸡育种者(占种鸡群的90%)使用非每日喂养计划的使用，并结合使用纤维增肥剂和食欲抑制剂的有前景的替代日粮。将在实验和模拟商业条件下研究这些饲养策略对生长、行为、应激生理、产蛋量和孵化率、胃肠道形态和沙门氏菌定植的影响，以向家禽养殖业提出基于科学的建议。