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Statistical effect analysis on the testosterone concentration, carcass grade and ultrasonic measurement at 30-month-old of Hanwoo steers
Journal of the Korean Data & Information Science Society 2018;29:1721-9
Published online November 30, 2018
© 2018 Korean Data and Information Science Society.

Jae Jung Ha1· Yun Sook Jung2 · Byung Ki Kim3 · Dae Jin Jung4 · Dong Yep Oh5 · Dae Hyun Kim6 · Jea Young Lee7 · Myoung Ok Kim8 · Oh Kyu Kwon9 · Sung Hyun Kim10 · Jun Koo Yi11

123456Gyeongsangbuk-Do Livestock Research Institute
2Department of Preventive Dentistry, Kyungpook National University
7Department of Statistics, Yeungnam University
8Department of Animal Biotechnology, Kyungpook National University
9Department of Ecology and Environmental Science, Kyungpook National University
10China-US(Henan) Hormel Cancer Institute
11Gyeongsangbuk-Do Livestock Research Institute
Correspondence to: Agriculture researcher, Gyeongsangbuk-Do Livestock Research Institute, Yeongju 36052, Korea. E-mail: 79lee38@korea.kr
Received September 13, 2018; Revised November 1, 2018; Accepted November 13, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This study was conducted to produce a statistical effect analysis on the testosterone concentration, carcass grade and ultrasonic measurement at 30-month-old of Hanwoo steers. A total of 186 Hanwoo steers were used. Testosterone concentration, MAR, u-LMA and u-MAR according to grade were statistically signi cant differenced (p = 0:021, p < :0001, p = 0:003, p < :0001). Correlation analysis showed that MAR, u-LMA and u-MAR had a positive correlation (r = 0:921, 0.475, 0.760), and testosterone was a negative correlation (r =-0:278) between the grade. LMA was positive correlation (r = 0:218), and MAR had a negative correlation (r =-0:322) between the testosterone concentration. Carcass grade (LMA, BFT, MAR) and ultrasonic carcass grade (u-LMA, u-BFT, u-MAR) were positive correlation (r = 0:768, r = 0:691, r = 0:854).
Keywords : Carcass grade, Hanwoo steers, testosterone concentration, ultrasonic measurement.