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Plasma prolactin variations in the male calf in relation to age, season and breed

Plasma prolactin variations in the male calf in relation to age, season and breed

Annales de Biologie Animale, Biochimie, Biophysique 17(6): 1095-1099

ISSN/ISBN: 0003-388x

Plasma prolactin levels were measured in 16 Charolais, 7 Hereford, 5 Maine-Anjou, 4 Limousin and 10 French Friesian male calves at weekly intervals from 1 wk after birth to 6 mth of age, and then every 2 wk until 1 yr of age. The mean annual level of prolactin in the 5 breeds was 9.8, 9.6, 9.3, 10.7 and 8.3 ng/ml resp. These differences were not significant.

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Accession: 000461076

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