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Abstract

The objectives of the current study were to evaluate the effects of supplemental progesterone after artificial insemination (AI) on expression of IFN-stimulated genes (ISG) in blood leukocytes and fertility in lactating dairy cows. Weekly cohorts of Holstein cows were blocked by parity (575...

Author(s)
Monteiro, P. L. J., Jr.; Ribeiro, E. S.; Maciel, R. P.; Dias, A. L. G.; Solé, E., Jr.; Lima, F. S.; Bisinotto, R. S.; Thatcher, W. W.; Sartori, R.; Santos, J. E. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 8, pp 4907-4921
Abstract

Objectives were to determine the effect of reducing the period of follicle dominance in a timed artificial insemination (AI) protocol on pregnancy per AI (P/AI) in Holstein cows. In experiment 1, 165 cows received 2 injections of PGF at 36 and 50 d in milk (DIM). At 61 DIM, cows were assigned...

Author(s)
Santos, J. E. P.; Narciso, C. D.; Rivera, F.; Thatcher, W. W.; Chebel, R. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2010, 93, 7, pp 2976-2988