livestock-nutrition-2016_posters-accepted-abstracts

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Volume 4, Issue 2 J Fisheries Livest Prod
ISSN: 2332-2608 JFLP, an open access journal
Page 48
Notes:
Livestock Nutrition 2016
July 21-22, 2016
conferenceseries.com
July 21-22, 2016 Brisbane, Australia
2nd International Conference on
Livestock Nutrition
Y H Moon et al., J Fisheries Livest Prod 2016, 4:2 (Suppl)
Correlation between blood composition and meat quality in Hanwoo steers
Y H Moon, S S Jang, W G Cho, E T Kim and S S Lee
Gyeongnam National University of Science and Technology, South Korea
Ahundred twenty six Hanwoo steers (8-9 month of age) were used to know the correlation between blood composition and
carcass traits. Steers fed the formula feed and rice straw (30 heads) or total mixed rations (96 heads) and were slaughtered
at 30 month of age. Blood samples were corrected from jugular vein at the growing (8-12 mo), early fattening (13-23 mo) and
late fattening (24-30 mo) phases. Blood metabolites and hormones were analyzed and determined the correlation coefficients and
regression equations with carcass traits. Average concentrations of retinol, insulin and leptin were 1.10 IU, 30.34 ng and 235.35 ng per
ml of blood plasma, respectively and blood retinol has negative correlations significantly (P<0.01) with insulin and leptin. With the
age of steers, blood insulin and total protein decreased but blood retinol, AST, glucose, cholesterol and triglyceride were increased. At
the late fattening phase, significant (P<0.01) negative correlations occurred between blood retinol concentration and marbling score
and also blood total protein and longissimus muscle area of 13th rib and obtained the regression equations as follows; Marbling score
(1-9)=-0.009×Retinol (IU/100 ml)+9.125 (R2=0.643); Ribeye muscle area (cm2)=-0.250×AST (U/L)+112.498 (R2=0.450). From the
results obtained in the current study, it might be possible to make a high marbled beef by controlling the blood retinol content during
the fattening phase in steers.
Biography
Y H Moon has completed his PhD in Ruminant Nutrition from GNU in Korea and working in the university as a Professor since 20 years. He has published more
than 100 papers in reputed journals and has been serving as an Editorial Board Member of repute.