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Prenatal Influence of an Androgen Agonist and Antagonist on the Differentiation of the Ovine Sexually Dimorphic Nucleus in Male and Female Lamb Fetuses

Creator:

Roselli, Charles E., Reddy, Radhika C., Estill, Charles T., Scheldrup, Melissa, Meaker, Mary, Stormshak, Fred, and Montilla, Hernán J.

Abstract:

The ovine sexually dimorphic nucleus (oSDN) is 2 times larger in rams than in ewes. Sexual differentiation of the oSDN is produced by testosterone exposure during the critical period occurring between gestational day (GD)60 and GD90 (term, 147 d). We tested the hypothesis that testosterone acts through the androgen receptor...

Resource Type:

Article
Effect of Feeding Selenium-Fertilized Alfalfa Hay on Performance of Weaned Beef Calves

Creator:

Hall, Jean A., Bobe, Gerd, Hunter, Janice K., Vorachek, William R., Stewart, Whitney C., Vanegas, Jorge A., Estill, Charles T., Mosher, Wayne D., and Pirelli, Gene J.

Abstract:

Selenium (Se) is an essential micronutrient in cattle, and Se-deficiency can affect morbidity and mortality. Calves may have greater Se requirements during periods of stress, such as during the transitional period between weaning and movement to a feedlot. Previously, we showed that feeding Se-fertilized forage increases whole-blood (WB) Se concentrations...

Resource Type:

Article

Full Text:

University, Corvallis, Oregon, United States of America, 2Department of Animal and Rangeland Sciences