Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Effects of Dietary Xanthophylls and See Weed By-Products on Growth Performance, Color and Antioxidant Properties in Broiler Chicks

Xanthophylls과 해조 부산물 첨가 급여가 육계의 사양성적, 육색 및 항산화 특성에 미치는 영향

  • 김창혁 (강원대학교 동물자원공동연구소) ;
  • 이성기 (강원대학교 동물자원과학대학) ;
  • 이규호 (강원대학교 동물자원과학대학)
  • Published : 2004.06.01
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Abstract

This experiment was conducted to investigate the effects of dietary pigment sources on the performance, color and antioxidant properties in broiler chick. Experimental diet was formulated to have isocalories and isonitrogen during the experiment period. Total xanthophylls content in the experimental diet was formulated to have 30ppm. Experimental trials were done for five weeks with six treatment groups; T1 (Control), T2 (Olo Glo, natural yellow pigment), T3 (Kern Glo, natural red pigment), T4 (canthaxanthin, synthetic red pigment), T5 (asthaxanthine, natural red pigment), and T6 (seaweed by-products). Body weight gain and feed intake were significantly lower (p＜0.05) in T6 group than in other treatments. Mortality was lower in T2, T3 and T4 than in control, but higher (p＜0.05) in T5 and T6. The sources of pigments did not have any effects on the dressed carcass and abdominal fat pad (p＞0.05). The gizzard weight was significantly lower in T6 (p＜0.05) than in others. Pigmentation of leg skin was significantly lower (p＜0.05) in control and T6. Effects of dietary pigments was greater with red pigments than with yellow pigments, and those were also greater with natural pigments than with synthetic ones. The peroxide value (POV), thiobarbituric acid reactive substances (TBARS) and pH values of chicken meat were increased (p＜0.05) in all treatments at 12 day storage, and was higher (p＜0.05) in pigments supplementation group. No differences of CIE L$\^$*/(lightness) and b$\^$*/(yellowness) were not found by storage days and xanthophylls sources. The a$\^$*/(redness) after 12 day storage was significantly (p＜0.05) decreased in all treatments, but those of T4 and T5 were higher than those of others. These results showed that feeding of xanthophylls sources to chick could improve color intensity and inhibit lipid oxidation of leg meat.

본 시험은 천연 및 합성착색제와 해조부산물의 첨가가 육계의 육성 성적, 착색도, 항산화도 및 색택에 미치는 영향을 구명하기 위하여 실시하였다. 시험사료는 단백질과 에너지를 동일 수준으로 배합하였고, 사료내 xanthophylls 함량은 총 30 ppm이 되도록 하였다. 시험처리구로는 대조구(무첨가구, T1), Oro Glo 첨가구(천연황색소, T2), Kem Glo 첨가구 (천연적색소, T3), canthaxanthin 첨가구(합성적색소, T4), asthaxanthine 첨가구(천연적색소, T5)와 해조부산물 첨가구(T6)로 나누어 5주간 사양시험을 수행하였다. 증체량과 사료 섭취량은 대조구에 비해 T6구에서 유의적으로 낮았으나(p＜0.05), 착색제 종류에 따른 차이는 없는 것으로 나타났다. 폐사율은 대조구에 비해 T2, T3 및 T4에서 낮았고, T5 및 T6구에서는 현저하게 높게 나타났다.(p＜0.05). 도체율과 복강내지방은 처리구간 착색제에 따른 차이는 볼 수 없었으나, 근위무게는 T6구에서 가장 적은 것으로 나타났다.(p＜0.05). 다리 착색도는 대조구와 T6구에서 가장 낮았고(p＜0.05), 착색효과에 있어서는 황색 착색제보다 적색 착색제에서, 그리고 합성착색제보다는 천연착색제에 의한 효과가 우수한 것으로 나타났다.(p＜0.05). 닭고기의 POV, TBARS 및 pH는 저장 12일 이후 모든 처리구에서 증가하였고(p＜0.05), 처리 간 차이는 대조구보다 착색제 첨가구가 높게 나타났다(p＜0.05). 육색에서 CIE L$^{*}$ (명도)값과 b$^{*}$ (황색도)값은 저장기간 및 착색제 종류에 따른 차이는 없었다. a$^{*}$ (적색도)값은 저장 12일 후 모든 처리구가 감소(p＜0.05)하였으나. T4와 T5구의 a$^{*}$ 값이 다른 처리구에 비하여 높았다.(p＜0.05). 이상의 결과를 종합하여 볼 때 xanthophylls 종류에 따라 육색에 영향을 미치고, 저장 중 지방산화가 억제되었다.

Keywords

References

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