육계에서 Hematococcus pluvialis의 급여가 성장 및 혈액 성상에 미치는 효과
Effect of Dietary Hematococcus pluvialis Supplementation on Growth Performance and Blood Components of Broilers
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본 연구는 육계에 Hematococcus pluvialis(H. pluvialis)의 급여가 성장 및 혈액 성상에 미치는 효과를확인하기 위해 수행되었다. 2주령의 육계 120수를 기초사료 급여구(대조구)와 H. pluvialis 건조분말을0.05(HP 0.05), 0.1(HP 0.1) 및 0.2%(HP 0.2)로 사료에 혼합하여 급여한 3개의 처리구로 나누어 5주동안 사양시험을 실시하였다. 시험 종료시점에, HP 0.2의 증체량은 대조구와 비교하여 통계적으로 유의성있게 증가하였으며(p<0.05), 사료요구율도 대조구와 비교하여 통계적으로 유의성 있게 개선되었다(p<0.05). 혈액학적 지표들의 경우, 모든 H. pluvialis 건조분말 처리구와 대조구 사이에 유의적인 차이를 보이지않았다. 혈액생화학적 지표들의 경우, HP 0.2의 aspartate aminotransferase 값이 대조구와 비교하여통계적으로 유의성 있게 감소하였다(p<0.05). 본 연구의 결과를 통해, H. pluvialis 건조분말을 사료 톤 당2.0kg 농도(0.2%)로 육계사료에 첨가하여 급여할 경우에 육계의 성장 및 사료요구율의 개선 효과가 있는것으로 확인되었다.
Abstract
This study investigated the effects of dietary Hematococcus pluvialis(H. pluvialis) supplementation ongrowth performance and blood components in broiler chickens. Referred to the previous studies, a totalof 120 one-day-old male broiler chicken(Ross 308) after 7 days of acclimation were randomly assignedto four experimental groups, which were a basal diet alone(control) or supplemented with H. pluvialisat 0.05(HP 0.05), 1.0(HP 0.1), and 2.0 g/kg of basal diet(HP 0.2). After 35 days of administration, thebody weight gain and average daily feed intake of HP 0.2 were significantly higher when compared tothat of control(p<0.05). In addition, the feed conversion ratio of HP 0.2 was significantly improvedcompared to that of control(p<0.05). In hematological parameters, there were no significant differencebetween control and all treatment groups. In blood biochemical parameters, aspartate aminotransferasevalue of HP 0.2 significantly decreased compared to that of control(p<0.05). The results of this studyindicated that dietary H. pluvialis meal supplementation at 2.0 kg/ton could be safely used for theimprovement of growth performance and feed conversion ratio in broilers.
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