Lowered Dietary Calcium and Its Effects on the Production Performance, Meat Quality and Adipogenic Marker Gene Expression of Korean Hanwoo Beef Cattle
Emil Joseph Sanvictores Vergara, Yeul Chang Baek, Doo Hyun Kim and Seong Gu Hwang
Full Length Research Paper I Published August,2016
Journal of Agricultural Science and Food Technology
ABSTRACT
Marbling is one of the most important characteristics in the
production of high quality beef. In practice, nutritional
manipulations are frequently performed in order to achieve
better marbled and thus higher quality beef. The present
study was designed in order to determine the effect of
lowered dietary calcium on the meat quality of Korean Hanwoo
beef cattle. Dietary calcium was reduced through the
decrease of limestone content in the feed formulation. Sixty
animals were divided into 3 groups "[20 animals each]",
control (1.32% limestone), treatment 1 (1.02% limestone) and
treatment 2 (0.72% limestone). After six months of feeding
trial, the animals were slaughtered and the carcass
characteristics and production performance were obtained.
In addition, RNA samples were isolated from muscle samples
collected from the cervical area and the expression of
adipogenic marker genes (PPARγ, CEBP/α, aP2 and SREBPc) were
measured through reverse transcriptase polymerase chain
reaction. Results have shown that lowering the dietary
calcium level causes no improvements or changes in the
production performance, carcass quality, serum biochemical
parameters, and mRNA expression of adipogenic marker genes.
Also, no significant changes were seen in the calcium
content of the serum suggesting a tight regulation for the
mineral by the calcium homeostasis system of the animal. In
conclusion, lowered dietary calcium at the level used in
this study does not result in increased carcass
characteristics in Hanwoo beef cattle.
Key Words: Calcium, Marbling,
Adipogenic genes, Micronutrient manipulation and Meat
quality.
- Journal of Agricultural Science and Food Technology (JASFT)
- Journal of Medical and Biological Science Research (JMBSR)
- Journal of Scientific Research and Essays (JSRE)
- Research Journal of Educational Studies and Review (RJESR)
- Journal of Physical Science and Environmental Studies (JPSES)
- Research Journal of Engineering and Technology (RJET)
- Pearl Journal of Management, Social Science and Humanities (PJMSSH)