• Korean Journal of Poultry Science
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• v.31 no.3
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• pp.151-155
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• 2004

This experiment was conducted to investigate the influence of dietary supplementation of granite porphyry (GP) on growth performances and meat sensory quality in commercial broiler chicks. A total of four hundred-fifty 5-day-old male broiler chicks were divided into 15 pens and fed one of five experimental diets for 5 weeks; 0% GP with antibiotics (Control), 1% GP with or without antibiotics, and 2% GP with or without antibiotics. Final body weight and daily weight gain of all GP supplemented groups were slightly higher than those of control. Feed conversion rate was improved in GP 1 % supplemented groups, although there was no significant difference. Feeding antibiotics in addition to GP did not influence the growth parameters. Relative weights of liver and abdominal fat tended to be reduced in broiler chickens fed GP supplemented diets. Feeding of 2% GP diet resulted in a significant improvement in meat sensory quality in terms of taste and tenderness(P < 0.05), but the effect of the 1% GP on meat sensory quality was not significant. The results of this study indicate that GP could be used as a favorable feed additive for production of sensory-enhanced broiler meats.

• KOREAN POULTRY JOURNAL
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• v.38 no.6 s.440
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• pp.120-123
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• 2006

선모자연농원(대표 양승덕)은 지난 2006년 3월 10일 우리 시대에 맞는 친환경 생산물을 이용해 무항생제, 항산화제로 소비자에게 깨끗하고 신선한 계란을 공급하고자 3년간의 지속적인 연구 끝에 흑운모와 녹차를 함유한 유정란의 품질인증을 받았고, 현재 특허등록을 위해 출원한 상태이다.(출원번호 40-2006-0012500). 양승덕 사장은 흑운모가 황토와 맥반석보다 약 3배 이상 원적외선 방사율(94%)이 높으며 게르마늄 함유량이 36ppm에 이르는 생명의 돌로서 예전부터 흑운모석을 약돌이라 부른 것에 착안하여 산란계에도 흑운모 분말을 배합한 사료를 급여하였다. 본고는 웰빙시대에 걸 맞는 흑운모, 녹차의 기능과 이를 이용해 국내에서 어렵게 생산한 "흑운모 · 녹차유정란"의 특성을 살려 생산하는 현장을 취재하였다.