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首页> 外文期刊>Advances in Animal Biosciences >Cardiovascular measures during routine practices for feed efficiency assessment in beef cattle
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Cardiovascular measures during routine practices for feed efficiency assessment in beef cattle

机译：牛肉饲料效率评估的常规实践期间心血管措施

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摘要

Assessment of cattle feed efficiency via physiological indicators of residual feed intake (RFI; kg DM/day)(Pollak et al., 2012) has potential to aid in meeting increasing meat demand while lowering environmental footprint, fromboth breeding and management perspectives. Further investigation of the relationship between cardiovascular functionagainst productive performance could advance its application as a proxy for RFI. Feed efficient (Low-RFI) cattle have beenshown to have lower heart rates (HR) during rest, but higher HR in response to acute stress (Munro et al., 2016). Thus,objectives were to further assess the relationships of cardiovascular function and RFI in cattle as part of regular feedlothusbandry practices, in an ongoing effort to determine the potential of cardiovascular measures in commercial settings.
机译：通过残留饲料摄入量的生理指标评估牛饲料效率（RFI; KG DM / Day）（Pollak等，2012）有助于在降低环境足迹，从育种和管理视角下会满足肉类需求。 进一步调查心血管功能性能之间的关系，可以将其应用推向RFI的代理。 饲料效率（低RFI）牛已经休息，但在休息期间具有较低的心脏速率（HR），但响应急性压力的人力资源较高（Munro等，2016）。 因此，目的是进一步评估牛中心血管功能和RFI的关系，作为常规Feedlusbry实践的一部分，以持续努力确定商业环境中心血管措施的潜力。

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