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• W2038664618 abstract "본 연구에서는, 3개의 다른 색(white, blue 및 red/ 23L-1D)의 조명이 육계 암수별 행동 및 생산성에 미치는 영향에 대해서 조사하였다. 시험계는 초생추 육계를 6개 pan(pan당 암컷 16수, 수컷 16수)으로 나누어서, 3가지 색의 조명에서 실험이 실시되었다. 실험계는 3일간의 조명에 대한 적응 기간을 거친 후, 동일한 사양 조건에서, 암수 각각 3수씩, pan당 6마리의 focal birds를 중심으로 pecking, resting, standing 및 walking 행동이, 1일 120분간(pan당 20분/일), 주 5일간, 직접관찰법으로 5주간 시행되었다. 뿐만 아니라 증체량과 사료 섭취량 등은 주별로 계산되었고, 시험계 19일령과 33일령의 2회에 걸쳐서 TI-반응과, 33일령의 1회에 걸쳐서 gait score, foot pad score 및 horn burn score가 조사되었다. 조명의 색은 증체량, 사료 섭취량에는 유의한 영향을 미치지 않았다(P>0.05). 그러나 사료 효율에는 유의한 영향을 미쳐서(P<0.05), blue 조명의 경우가 white 및 red 조명의 경우보다 높았다(P<0.05). Resting 행동 빈도는 전체의 행동 빈도에서 주요한 행동으로 나타났으며, 이는 암수간 또는 조명의 색깔에 따라서 영향을 받지 않았다. 성장 초기에는 red 조명에서 resting 행동 빈도가 낮게 나타나는 경향이 있었다. 뿐만 아니라 standing 행동 빈도는 4~18일령에, walking 행동 빈도는 전 시험 기간 동안 red 조명에서 높게 나타나는 경향이 있었다. 본 연구 결과로부터 육계 사육장내 조명의 색은 생산성, 행동 빈도 및 복지에 영향을 미칠 가능성이 생각되었다. The aim of the present study was to investigate the behavior and performance of male and female broiler chickens reared under three different colors of light (white, blue and red) in a 23L:1D of lighting program. Day-old broiler chicks were obtained and assigned to six pens (16 males and 16 females per pen). Two pens each were located in three different rooms in an environmentally controlled shed and received the different light colors. All birds received same husbandry conditions. After a 3-day adaptation to the light color, behavior observations (pecking, resting, standing and walking) were made on six focal birds per pen, representing the sex ratio, by direct visual scans for 120 minutes daily for five days a week throughout the 5-week study. Body weights and feed intake were recorded at weekly intervals. On days 19 and 33, welfare indicators (tonic immobility reaction on the 19 and 33 days old; gait scores, foot pad and hock burns scores on 33 days old) were determined. Light color had no significant effect (P>0.05) on the weight gain and feed intake of broilers, but significantly (P<0.05) influenced the feed conversion ratio. Birds receiving the blue light were more (P<0.05) efficient than those receiving white and red lights. Resting was observed to be the major behavior pattern, irrespective of sex or light color. During early growth, resting behavior tended to be lower in birds receiving red light. However, standing and walking behaviors tended to be higher in birds receiving red light in 4 to 18 day-old age and all of experimental periods, respectively. These data indicate that light color can influence broiler performance and behavior." @default.
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• W2038664618 title "The Effects of Light Colors on the Behavior and Performance of Broiler Chickens" @default.
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