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Effect of dietary addition of clay mineral and chives probiotic in Hanwoo steers
Journal of the Korean Data & Information Science Society 2019;30:1091-103
Published online September 30, 2019;  https://doi.org/10.7465/jkdi.2019.30.5.1091
© 2019 Korean Data and Information Science Society.

Byung Ki Kim1 · Dae Jin Jung2 · Jun Koo Yi3 · Jae Jung Ha4 · Dae Hyun Kim5 · Eun Gyeoung Hwang6 · Jea-Young Lee7

12345Gyeongsangbuk-do Livestock Research Institute
6Department of Hotel Cooking & Baking, Kyungbuk College
7Department of Statistics
Correspondence to: Chief of research, Gyeongsangbuk-do Livestock Research Institute, Yeoungju 36052, Korea. E-mail : bkkim017@korea.kr

This Research was Supported by Pohang City Project Research Fund., 2018.
Received July 26, 2019; Revised September 10, 2019; Accepted September 17, 2019.
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
The purpose of this study is to investigate the fattening performance and carcass characteristics in the dietary addition of the clay minerals and chives probiotics for Hanwoo steers during the fattening period by using random arrangement. This experiment has found out that the control plot during the growing period and T2 plot during the early fattening period were highest, and that the T2 plot during the middle fattening period and T3 plot during the late fattening period had higher body weight gains. Furthermore, the T3 plot were highest among the treatment plots as the market weight was 753.7∼811.43 kg (mean 772.74 kg) and the carcass weight was 434.38∼488.43 kg (mean 454.39 kg). In addition, there was statistical significant difference that the T3 plot (16.86 mm, 103.00 cm2 each) was thickest (p<0.05) as the backfat thickness was mean 15.21 mm and the longissimus muscle area was mean 96.84 cm2. This study has found out that the T3 plot was very significant higher as 3.86 point when it was compared by calculating the carcass quality grade in the carcass traits (p<0.05).
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