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Effects of parity, seasonal heat stress, and colostrum collection time postpartum on colostrum quality of Holstein cattle in an arid region

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Abstract

The aim of this study was to determine effects of parity (primiparous vs. multiparous), seasonal heat stress at calving (summer vs. winter), and time postpartum on some parameters associated with colostrum quality in Holstein cows reared in the Sonoran Desert ecosystem. Forty-seven cows (11 primiparous and 36 multiparous) expected to calve during summer, and 46 cows during winter (14 primiparous and 32 multiparous) were randomly selected. Management and feeding before and after parturition were similar for cows in both seasons. After parturition, colostrum from all cows was evaluated for volume, weight, temperature, density, and content of fat, protein, solids non-fat (SNF), and immunoglobulins (IGG). Data were analyzed with a model that included effects of parity status, calving season, and time postpartum, as well as all interactions. Colostrum produced in summer was warmer (P < 0.01) by almost 6 °C than winter colostrum, while colostrum from multiparous was warmer (P = 0.02) by 1.2 °C than that produced by primiparous cows. Colostrum volume and weight were not impacted by parity, calving season or time postpartum. Density, protein, and SNF content in colostrum were higher (P < 0.01) in multiparous vs. primiparous cows, as well as at parturition (0 h postpartum) than at 12 h postpartum (P < 0.01). At calving (0 h), spring colostrum had higher fat content (P < 0.01) and lower (P < 0.01) IGG concentration than that collected in summer, and no difference (P > 0.05) between seasons was observed for these components at 12 h postpartum. Multiparous cows produced colostrum with higher (P < 0.01) IGG concentrations than primiparous cows. In conclusion, only 0-h colostrum and that from multiparous cows was categorized as “Excellent,” meanwhile the colostrum produced under summer heat stress was characterized as “Good” with reduced fat content. While the lacteal secretion collected at 12 post-partum still classified as colostrum, substantially lower contents of IGG, protein, fat, and SNF decreased its classification to “Poor” from the classification of “Excellent” at 0 h postpartum.

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Acknowledgements

The authors expressed appreciation for the help and permission of using the animals to C. P. Mario Magaña Calderón (owner) and M. V. Z. José Alfredo Jiménez Gómez (ranch manager) from Establo Morelia in the Mexicali Valley, B. C., Mexico.

Funding

This research study was supported by the Cuerpo Académico de Fisiologia y Genética Animal, which belongs to the Instituto de Ciencias Agrícolas of the Universidad Autónoma de Baja California.

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Correspondence to U. Macías-Cruz.

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Avendaño-Reyes, L., Macías-Cruz, U., Sánchez-Castro, M.A. et al. Effects of parity, seasonal heat stress, and colostrum collection time postpartum on colostrum quality of Holstein cattle in an arid region. Int J Biometeorol 68, 427–434 (2024). https://doi.org/10.1007/s00484-023-02601-5

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  • DOI: https://doi.org/10.1007/s00484-023-02601-5

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