Browsing by Author "Butler, S.T."
Now showing items 1-3 of 3
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Differences in the expression of genes involved in the somatotropic axis in divergent strains of holstein-friesian dairy cows during early and mid lactation
McCarthy, S.D.; Butler, S.T.; Patton, J.; Daly, M.; Morris, D.G.; Kenny, D.A.; Waters, S.M. (American Dairy Science Association, 2009-10-01)Differences in genetic selection criteria for dairy cows internationally have led to divergence in the Holstein-Friesian breed. The objective of this study was to compare hepatic expression of genes of the somatotropic ... -
Effects of synchronization treatments on ovarian follicular dynamics, corpus luteum growth, and circulating steroid hormone concentrations in lactating dairy cows
Herlihy, M.M.; Crowe, M.A.; Diskin, M.G.; Butler, S.T. (American Dairy Science Association, 2012-02-01)Lactating dairy cows (n = 57) >= 45 d postpartum at first service were enrolled in a randomized complete block design study to evaluate treatments to synchronize estrus and ovulation. At 10 d before artificial ... -
Evaluation of protocols to synchronize estrus and ovulation in seasonal calving pasture-based dairy production systems
Herlihy, M.M.; Berry, D.P.; Crowe, M.A.; Diskin, M.G.; Butler, S.T. (American Dairy Science Association, 2011-09-01)Lactating dairy cows (n = 1,538) were enrolled in a randomized complete block design study to evaluate protocols to synchronize estrus and ovulation. Within each herd (n = 8), cows were divided into 3 calving groups: early; ...