Cross-sectional analysis of the associations between age and body weight at first calving and productivity in spring-calving Holstein-Friesian dairy cows

Age at first calving (AFC) is one of the key determinants of heifer rearing costs. Although a young AFC is recommended in order to minimise the non-productive period, calving at a young age has previously been associated with a reduction in milk production. Heavier BW at first calving may, however,...

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Bibliographic Details
Main Authors: H. Costigan, D.P. Berry, S. Walsh, E. Kennedy
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Animal
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Online Access:http://www.sciencedirect.com/science/article/pii/S1751731125001727
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