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Effects of Cudrania tricuspidata Fruit on the Performance, Blood Metabolites and IgG in Laying Hens

꾸지뽕 열매의 급여가 산란계의 생산능력, 혈액 성상, 면역글로불린에 미치는 영향

  • Lim, Chun Ik (Department of Animal Science, Chonbuk National University) ;
  • Choi, Hong Hwan (Department of Animal Science, Chonbuk National University) ;
  • Choi, Seung Min (Department of Animal Science, Chonbuk National University) ;
  • Lee, Dong Gil (Department of Animal Science, Chonbuk National University) ;
  • Kang, Min Su (Department of Animal Science, Chonbuk National University) ;
  • Lee, Bom Mi (Department of Animal Science, Chonbuk National University) ;
  • Kim, Hyeong Ju (Department of Animal Science, Chonbuk National University) ;
  • Shin, Min Kyeong (Department of Animal Science, Chonbuk National University) ;
  • Lee, A Ra (Department of Animal Science, Chonbuk National University) ;
  • Ryu, Kyeong Seon (Department of Animal Science, Chonbuk National University)
  • 임천익 (전북대학교 동물자원과학과) ;
  • 최홍환 (전북대학교 동물자원과학과) ;
  • 최승민 (전북대학교 동물자원과학과) ;
  • 이동길 (전북대학교 동물자원과학과) ;
  • 강민수 (전북대학교 동물자원과학과) ;
  • 이봄미 (전북대학교 동물자원과학과) ;
  • 김형주 (전북대학교 동물자원과학과) ;
  • 신민경 (전북대학교 동물자원과학과) ;
  • 이아라 (전북대학교 동물자원과학과) ;
  • 류경선 (전북대학교 동물자원과학과)
  • Received : 2016.01.11
  • Accepted : 2016.02.20
  • Published : 2016.03.31

Abstract

This research was carried out to determine the effect of Cudrania tricuspidata fruit (CTF) on the performance of laying hens, egg quality, yolk fatty acid composition, Immunoglobulin G (IgG) and blood composition. A total 288 Brown Nick laying hens of 48 weeks old replaced into 4 groups with 4 replicates of 18 birds in each. Treatments were added with 0, 0.25, 0.5, 1.0% CTF containing dried seed and pulp. Metabolizable energy (ME) and crude protein (CP) were 2,800 kcal/kg and 16.0% in basal diets, respectively. Egg production and daily eggmass were significantly increased in 1.0% CTF addition treatment compared to those of other treatments (P<0.05). Egg weight and feed intake were not different among treatments. Feed conversion ratio showed the lower result in 1.0% CTF treatment than other treatments (P<0.05). Eggshell color was not influenced by the addition of CTF. Albumin height, Haugh unit and eggshell breaking strength was not statistically different, but seemed to be higher as dietary CTF addition increased. Yolk color was increased as dietary CTF increased and was the highest in 1.0% CTF group (P<0.05). Fatty acids were not shown the consistency in yolk. Blood cholesterol and triglyceride (TG) of birds fed CTF were significantly low compared to those of control. IgG was also statistically higher in CTF treatments than control (P<0.05). As the results of this experiment, the addition of 1% CTF would be the most effective on performance and egg quality, whereas the 0.25% CTF addition in basal diets seemed to be optimum to improve the blood cholesterol, TG,high density lipoprotein cholesterol (HDL-CHOL), IgG in laying hens.

이 연구는 꾸지뽕 열매(Cudrania tricuspidata fruit; CTF)의 산란계에 급여가 생산 능력, 계란의 품질, 지방산, 혈중 콜레스테롤, 면역글로불린에 미치는 영향을 구명하고자 시행하였다. 48주령 산란계 닉브라운 288수를 4개 처리구 4반복 반복 당 18수씩 개체별 케이지에 배치하였으며, 처리구는 건조된 꾸지뽕 열매를 0, 0.25, 0.50, 1.00% 첨가하여 급여하였다. 기초사료의 ME와 CP는 2,800 kcal/kg, 16.0% 수준으로 하였으며, 산란율, 1일 산란량은 CTF 1% 급여구에서 다른 처리구에 비하여 현저하게 증가하였으며(P<0.05), 사료섭취량은 처리구 간에 차이가 없었지만, 사료요구율은 CTF 1.0% 급여구에서 다른 처리구보다 현저하게 개선되어 통계적으로 차이를 보였다(P<0.05). 알부민의 높이, 호유닛과 난각강도는 CTF 첨가로 인하여 개선되는 경향을 보였지만, 통계적인 차이는 없었다. 난황색도는 CTF 첨가 수준이 증가함에 따라서 증가하였다(P<0.05). 난황의 지방산은 일관성은 없었지만, n6/n3 비율이 CTF 처리구에서 대조구에 비하여 높게 나타났다. 혈중 콜레스테롤과 TG는 CTF 급여구에서 대조구보다 매우 낮았으며(P<0.05), 면역글로불린은 CTF 처리구에서 대조구보다 높게 나타났다(P<0.05). 이 실험 결과 산란계 사료에 CTF 1% 첨가는 생산능력과 계란 품질을 개선하였지만, 혈중 콜레스테롤, TG, IgG는 CTF 0.25% 수준으로 충분하였다.

Keywords

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