산란계 사료 내 Sericite의 첨가 급여가 산란능력, 사료요구율, 계란품질 및 분중 NH3-N농도에 미치는 영향
(주)코리아스칼라
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- 2023.04.05
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- 2010.06
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서지정보
ㆍ발행기관 : 강원대학교 동물자원공동연구소
ㆍ수록지정보 : 동물자원연구 / 21권 / 1호
ㆍ저자명 : 윤석민, 이명호, 이준엽, 케오하봉, 카잉민, 이시정, 오상집
목차
ABSTRACT I. 서론 II. 재료 및 방법 1. 시험 동물 및 설계 2. 산란율 및 평균난중 3. 사료섭취량 및 사료요구율 4. 영양소 소화율 5. 난의 품질 6. 분내 NH3-N 농도 측정 7. 통계분석 III. 결과 및 고찰 1. 산란율과 평균난중 2. 사료섭취량과 사료요구율 3. 영양소 소화율 4. 계란의 품질 5. 분내 NH3-N 농도 IV. 요약 V. 인용문헌
영어 초록
This study was conducted to investigate the effect of dietary sericite(SC) on laying performance, feed conversion ratio, egg quality and fecal ammonium nitrogen. Three hundreds and sixty 92-wk-old, Lohman Lite layers were randomly divided into 20 groups of 18 birds each and assigned to five experiment for 4 weeks (72 birds per treatment). Dietary treatments were Control (control diet), SC 0.5 (control diet +0.5% sericite), SC 1.0 (control diet +1.0% sericite), SC 1.5 (control diet +1.5% sericite), and SC 2.0 (control diet +2.0% sericite). Hen-day egg production tended to increase by the SC 1.0%, SC 1.5% and SC 2.0% supplementation in the diets. Egg weight also tended to increase by the SC 1.0% addition in the diets. Feed intake was increased (p<0.05) in SC 1.5 and SC 2.0 but feed conversion was improved (p<0.05) only in SC 1.0 (p<0.05). Digestibility of nutrients were not linearly affected by dietary supplementation of sericite although there was an inconsistent difference. Egg shell strength, albumin height, yolk color, and egg shell thickness were not affected (p<0.05) by treatments. Fecal NH3-N concentration was decreased (p<0.05) by dietary sericite supplementation compared to control. This study showed that dietary 1.0% sericite supplementation can be beneficial to improve egg production, egg weight and feed conversion and to decrease fecal NH3-N concentration.
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