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Asian-Australas J Anim Sci > Volume 14(11); 2001 > Article
Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 2001;14(11): 1560-1563.
DOI: https://doi.org/10.5713/ajas.2001.1560    Published online November 1, 2001.
Utilization of Substrate for the In vitro Lipid Synthesis in the Adipose Tissue of Hanwoo Steers
M. K. Song, H. J. Sohn, S. K. Hong, H. C. Kim
Abstract
An ability to utilize the substrates (acetate, glucose and lactate) in the lipid synthesis was measured in vitro with the adipose tissues of 4 locations (subcutaneous, SUBC; intramuscular, INTR; tail and kidney, KIDN) in 12 Hanwoo (Korean native cattle) steers (26 and 28 months of ages, mean body weight 638.6 kg). The rates of lipid synthesis from acetate were higher than those from glucose in SUBC and ITRA adipose tissues, respectively. In contrast, the rates of lipid synthesis from glucose were higher than those from acetate in the adipose tissues of tail and KIDN, respectively. Lactate utilization was lowest in all the locations while that of acetate or glucose had the different trends of utilization in the lipogenesis. The rate of lipid synthesis from acetate was highest in the SUBC adipose tissue but was lowest in the KIDN while that from glucose was also higher in the SUBC adipose tissue than in the other tissue locations. The rate of lipid synthesis from lactate, however, was highest in the tail adipose tissue among the locations.
Keywords: Lipogenesis; Adipose Tissue Location; Substrate; Hanwoo Steers


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