Resumo

ALEJOS-DE LA FUENTE, José Isidro et al. Productive and health response of Holstein calves to parity and colostrum supplied by sonde or teat. Ecosistemas y recur. agropecuarios [online]. 2025, vol.12, n.3, e4123.  Epub 05-Dez-2025. ISSN 2007-901X.  https://doi.org/10.19136/era.a12n3.4123.

The aim of this study was to evaluate the response of Holstein calves to parity and colostrum supply by teat or sonde at the Fresnedo dairy, Gómez Palacio, Durango. In the present study, a 2×2 factorial design, completely randomized (four treatments) was used. A total of 134 Holstein calves were evaluated, where colostrum supply was based on acceptance of the nipple. Subsequently, 81 calves were fed by gavage and 53 by nipple, and 24 hours later, a refractometer was used to measure serum immunoglobulins (IgG, g dL-1). Other response variables were birth to weaning weight gain (GPND, kg), birth to weaning height gain (GAND, m), and relative frequencies of respiratory problems (RP) and digestive problems (DP). No significant differences or interactions (P > 0.05) were found between treatments, only trends: GPND in calves from multiparous cows, supplied with a tube (49.35 kg), and GAND and IgG in calves from primiparous cows supplied with a nipple (0.1826 m and 6.3622 g dL-1), showed the highest values. Among the relative frequencies, PR grade 2 (0.9463) and PD grade 3 (0.1976), were the highest. In conclusion, there were no parity effects in the response variables, and due to the specialization of the personnel, no differences were detected when colostrum was fed by tube or by nipple. Further studies in other production units are needed to contrast the results of this research.

Palavras-chave : Calf; parity; colostrum; sonde; teat.

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