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거정석 첨가 급여가 비육한우의 체중 증가량, 혈액 성상, 면역성 및 도체등급에 미치는 영향 KCI 등재

Effects of Dietary Addition of Pegmatite on Body Weight Gain, Blood Characteristics, and Immunity and Carcass Grade for Fattening Hanwoo

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한국식품영양학회지 (The Korean Journal of Food And Nutrition)
한국식품영양학회 (The Korean Society of Food and Nutrition)
초록

This study analyzed the effect on weight and average daily gain, carcass grade, and blood characteristics and immunity in case of dietary addition of pegmatite to Hanwoo steers. Relative to Hanwoo steers, initial body weight was 257.3±11.74 kg (8-months old after birth). Forty-eight Hanwoo steers were fed for 24 months using random arrangement (4 treatment plots×4 heads×3 repeat). The treatment plot (498.75~500.82 kg) had higher weight during the early fattening stage compared with that of the control plot (474.37 kg) (p<0.05). Regarding total cholesterol of the blood, the value was similar to one during initiation of testing, but the value increased gradually based on the progress of fattening. In addition, the triglyceride was considerably low in T2~T3 plots with high addition of pegmatite during the late fattening stage compared with other treatment plots (p<0.05). This study revealed a tendency in the IgG content that represented immunity as the addition of pegmatite became higher (p>0.05). This study found that the treatment plot (441.55~452.10 kg) had higher carcass weight compared with the control plot (436.30 kg). However, this study revealed that the treatment plot (2.30~2.55 points) had higher carcass quantity grade compared with the control plot (2.11 points). This study found that the control plot (3.55 points) had higher carcass quality grade compared with the treatment plot (2.67~3.09 points) (p>0.05).
With studies combined, it was determined that dietary addition of pegmatite to the feed as clay minerals in fattening Hanwoo steers would improve feed intake, body weight gain and carcass quantity grade.

저자
  • 김병기(경상북도 축산기술연구소) | Byung Ki Kim
  • 하재정(경상북도 축산기술연구소) | Jae Jung Ha
  • 이준구(경상북도 축산기술연구소) | Jun Koo YI
  • 오동엽(경상북도 축산기술연구소) | Don Yep Oh
  • 정대진(경상북도 축산기술연구소) | Dae Jin Jung
  • 황은경(경북전문대학교 호텔조리제빵과) | Eun Gyeong Hwang
  • 최성복(국립축산과학원 한우연구소) | Seong Bok Choi Corresponding author