Social rank affects the endocrine response to frequent regroupings in grazing dairy heifers.

The objectives of this study were to determine the social behavior response to repeated social regrouping (SR), and if social rank and the changes of social rank affect the growth rate and some metabolites and hormones linked to energy status, in "resident" replacement dairy heifers subjected to SR for 205 d. Fourteen dairy heifers (153.3 ± 16.

Frequent social regroupings affect corporal and reproductive development, metabolic status, and behavioral time budget in dairy heifers.

We aimed to evaluate the corporal and reproductive development, metabolic status, and behavioral patterns of resident dairy heifers subjected to social regroupings (SR). Holstein replacement heifers (153.3 ± 16.