140. Bos Indicus Heifers Have a Reduced Number of Kisspeptin- and Dynorphin-immunopositive Cells in the Arcuate Nucleus Compared to Bos Taurus Heifers.
Bos indicus-influenced cattle represent approximately 30% of the U.S. herd. While better adapted to tropical and subtropical climates, Bos indicus-influenced females exhibit reduced reproductive efficiency and delayed puberty compared to Bos taurus. These reproductive differences revolve primarily on the neuroendocri...