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Abstract

The objective was to determine the effects of the duration of progesterone exposure during the ovulatory wave on fertility (pregnancy rate) in beef cattle. We tested the hypothesis that short-progesterone exposure during the growing and early-static phase of the ovulatory follicle (analogous to the ...

Author(s)
Dias, F. C. F.; Mapletoft, R. J.; Kastelic, J. P.; Adams, G. P.; Colazo, M. G.; Stover, B. C.; Dochi, O.; Singh, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2012, 77, 2, pp 437-444
Abstract

In the 1st experiment, 18 beef heifers were assigned to non-ablation and 20 to ablation groups. In non-ablated heifers, superstimulatory treatment was given as a single subcutaneous injection (Follitropin-V, 400 mg) at mid-dioestrus to coincide with emergence of the spontaneous follicular wave 8-12 ...

Author(s)
Bergfelt, D. R.; Bo, G. A.; Mapletoft, R. J.; Adams, G. P.
Citation
Animal Reproduction Science, 1997, 49, 1, pp 1-12