Social facilitator cow and nose-flap device: Strategies to reduce stress of calves during weaning management

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◆ 논문 초록 (Abstract)

To alleviate weaning distress in beef calves, we evaluated the effect of nose-flap (NF), social facilitator cow (SF), and their interactions on behavior, hair cortisol level, and performance. Forty-eight cows nursing calves were randomly allocated to one of four treatments, in a 2 × 2 factorial arrangement: without (-) / with (+) NF and absence (-)/presence (+) of SF. Nose-flaps were placed on calves on day -13; SF was introduced on paddock on day -7; and remote physical separation was on day 0. Behaviors were recorded on days -14, -13, -7, 0, 1, 2, 3, and 7; body weight on -29, -1, and 8; and hair samples were taken on -19 and 91. On day -13, feeding behaviors and lying down decreased; and on -7, drinking water and lying down decreased. On day 0, walking, standing, and vocalizing increased, without calves lying down. Calves from the +NF group diminished vocalization, standing, and walking behavior and increased grazing behavior. Calves from the +SF group increased graze behavior and reduced suckling attempts and vocalizing behaviors. From day -29 to -1, average daily gain (ADG) from the +NF-SF group was greater than that from the +NF+SF. From day -29 to 8 and from -1 to 8, all calves showed negative ADG. Hair cortisol concentration was greater post- than pre-weaning and in +SF than in -SF calves. Interaction between NF and SF cow seems not to be favorable to alleviate calf-weaning distress; however, the social facilitator cow promotes a more rapid adaptation after weaning than the nose-flap use.

◆ 원문 정보
저자: Canozzi MEA, Peripolli V, Damián JP, Quintans G
저널: Vet J
연도: 2026
DOI: 10.1016/j.tvjl.2026.106575

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