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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Animal Metabolism-Agricultural Chemicals Research » Research » Publications at this Location » Publication #292062

Research Project: METABOLIC FATE OF CHEMICAL AND BIOLOGICAL CONTAMINANTS

Location: Animal Metabolism-Agricultural Chemicals Research

Title: Consumption of beef from cattle administered estrogenic growth promotants does not result in premature puberty and obesity using the swine model

Author
item Magolski, James - North Dakota State University
item Anderson, Giovana - North Dakota State University
item Shappell, Nancy
item Vonnahme, Kimberly - North Dakota State University
item Berg, Eric - North Dakota State University

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 8/1/2012
Publication Date: 8/12/2012
Citation: Magolski, J.D., Anderson, G., Shappell, N.W., Vonnahme, K.A., Berg, E.P. 2012. Consumption of beef from cattle administered estogenic growth promotants does not result in premature puberty and obesity using the swine model. Proceedings 58th International Congress of Meat Science & Technology, August 12-17, 2012, Montreal, Canada. 58:D85.

Interpretive Summary:

Technical Abstract: The objective was to investigate the effects of ground beef from cattle administered commercial growth promotants on puberty attainment and body composition in female swine. Twenty-four gilts were selected based on strict selection criteria to reduce piglet variation. Treatments were randomly assigned based on BW (24.5 +/- 3.2 kg) and litter number, and included daily feedings of a 113-g beef patty from non-implanted steers (NAT), a 113-g beef patty from steers receiving estrogenic implants (IMP), a 198-g piece of tofu (TOFU), or a negative control receiving no supplemental treatment (CON). All gilts received the very low estrogen base diet fed at approximately 3.5% of BW and adjusted weekly to account for intake. Gilts were slaughtered at the NDSU Meats Lab a minimum of 3 d following first visual heat. Data were analyzed using the PROC MIXED function of SAS, with litter as a random variable. No treatment effect was observed with any growth parameter (P >/= 0.32), measurement of puberty including age at first heat (P >/= 0.46), or carcass composition measurement (P >/= 0.35). These data indicate that consumption of beef from cattle receiving estrogenic growth promotants does not influence growth rate, body composition, or attainment of puberty.