Effect of Nutrition and Management on Marbling Deposition, Carcass Value, and Profitability in Feedlot Cattle
Pyatt, Nathan Aaron
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https://hdl.handle.net/2142/83577
Description
Title
Effect of Nutrition and Management on Marbling Deposition, Carcass Value, and Profitability in Feedlot Cattle
Author(s)
Pyatt, Nathan Aaron
Issue Date
2004
Doctoral Committee Chair(s)
Berger, Larry L.
Department of Study
Animal Sciences
Discipline
Animal Sciences
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Agriculture, Animal Culture and Nutrition
Language
eng
Abstract
Three feedlot experiments were conducted to examine the effect of dietary vitamin A on carcass quality and serum retinol (ROL) in cattle. Diets were calculated to contain 2300 (LVA) or 7250 IU/kg (HVA). No treatment differences existed for MS across all trials. Serum ROL was greater among calf-fed heifers and steers fed HVA. Serum ROL and MS were not correlated. Dietary intakes of vitamin A at three times NRC recommendations increased serum retinol, but did not affect carcass quality in Angus x Simmental feedlot cattle.
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