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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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