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Asian-Australas J Anim Sci > Volume 20(11); 2007 > Article
Review Paper
Asian-Australasian Journal of Animal Sciences 2007;20(11): 1777-1782.
DOI: https://doi.org/10.5713/ajas.2007.1777    Published online October 30, 2007.
Is It Feasible Nutritionally to Improve Both Quality and Quantity of Meat Carcasses from Beef Steers?
Kyu Ho Myung*, Sang Soo Sun
Correspondence:  Kyu Ho Myung,
Abstract
Beef producers are trying to produce not only better quality but also greater quantity of beef in order to meet the preferences of some consumers at a lower cost. This can be accomplished if we understand the factors regulating lipid deposition in intramuscular adipose tissue and the tenderness of meat. Propylene glycol (PG) might be used as a precursor of intramuscular fat synthesis especially in the late period of fattening because adipose tissue in ruminants is thought to mature sequentially in abdominal, intermuscular, subcutaneous and intramuscular depots. The action of cholecalciferol supplementation has been verified in producing more tender meat through the enhancement of calpain activity over the postmortem ageing period. A synergistic effect can be expected if the dietary cation and anion difference (DCAD) technique is used in combination with dietary supplementation of cholecalciferol. In another approach, the optimization of hormonal implant use also may provide similarly marbled beef at a much lower cost.
Keywords: Quality; Quantity; Propylene Glycol; Cholecalciferol; Implant; Beef Steer


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