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Title:Effects of prenatal testosterone treatment on growth performance and carcass characteristics of cattle and sheep
Author(s):DeHaan, Kevin Charles
Doctoral Committee Chair(s):Berger, Larry L.
Department / Program:Animal Sciences
Discipline:Animal Sciences
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Agriculture, Animal Culture and Nutrition
Abstract:Six experiments were conducted to determine the effects of prenatal testosterone treatment (P) alone or in combination with postnatal steroid implantation (I) on growth performance, carcass traits, nitrogen balance and endocrine status of cattle and sheep. In Exp. 1, P heifers possessed improved (P $$.10) were observed with fecal, urinary and total N excretion and amount of N absorbed. Nitrogen retained (% of intake and g/d) was higher (P $<$.05) in P ewe lambs compared to control ewe lambs. Plasma insulin and insulin-like growth factor I concentrations were 99.0% and 28.7% higher (P $<$.05) in P ewe lambs, respectively. Non-esterified fatty acid (NEFA) concentrations were 41.3% greater (P $<$.05) in P ewe lambs.
Issue Date:1990
Rights Information:Copyright 1990 DeHaan, Kevin Charles
Date Available in IDEALS:2011-05-07
Identifier in Online Catalog:AAI9026167
OCLC Identifier:(UMI)AAI9026167

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