천연 및 합성 착색제의 첨가가 브로일러의 육성성적, 착색도 및 육색 변화에 미치는 영향

Influence of Dietary Natural and Synthetic figments on Growth Performances, Skin Pigmentation and Color Difference in Broiler Chicks

  • 발행 : 2003.03.01

초록

본 시험은 천연 및 합성 착색제의 첨가가 브로일러의 사양성적, 착색도 및 기계적인 색도에 미치는 영향을 비교하기 위하여 실시하였다. 시험 기간중 이용된 사료는 단백질과 에너지를 동일한 수준으로 배합하였으며, 사료내 xanthophylls 함량은 약 8.54g/ton이었다. 본 시험에 이용한 브로일러는 총 450수로 10처리, 처리당 15수씩 3반복하였으며, 총 6주간 시험하였다. 시험 결과 증체량, 사료섭취량 및 사료효율은 천연 및 합성 착색제간에 유의적인 차이가 없었다. 착색제 첨가에 따른 폐사율은 착색제 첨가수준이 높을수록 낮았으며, 합성착색제보다 천연착색제가 우수하였다. 착색도 첨가에 따른 도체율, 복강지방 및 근위무게는 처리간 차이가 없었다. 정강이 피부의 착색도는 착색제 첨가수준이 증가할수록 높았으며(P<0.05), 합성착색제가 천연착색제보다 착색효율이 우수하였다. 정강이육과 피부에 있어서 기계적 색도는 착색도와 일정한 연관성이 없었다. 본 시험의 결과만으로 미루어 착색제 첨가는 육색에 대한 소비자들의 선호도를 감안한다면 첨가하는 것이 효율적이라고 판단된다.

This experiment was conducted to investigate the effects of natural and synthetic commercial pigments on the growth performances, skin pigmentation and color difference of broiler chicks. Experimental diet was formulated to have isocalories and isonitrogen for experimental period, and xanthophyll concentration in the diet was 8.45g/1on. The experiment was conducted for six weeks with 450 broiler chicks. The birds were assigned to 10 treatment groups and each group had 15 chicks with three replications. Results showed that the types of pigments did not have any effect on body weight, feed intake and feed efficiency. The mortality was lower with higher pigment supplementation and greater in the natural pigment groups than in the synthetic ones. Dressed carcass, abdominal fat pad and gizzard weight were not significantly different among treatments. The pigmentation of shank skin was increased with high pigment supplementations, and the pigmentation effect was greater with synthetic pigments than in natural pigments. In the shank meat or skin, the color difference(L*, a*, b*, c* and h*) was not consistently related to pigmentation.

키워드

참고문헌

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