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ISSN : 1225-2964(Print)
ISSN : 2287-3317(Online)
Annals of Animal Resource Sciences Vol.31 No.3 pp.102-107

Effects of π-Ray Treated Feeds on Growth Performance and Carcass Characteristics of Broiler

Il Young Kim1#,Yong Gyun Goh2#,Jun Sang Ahn3,Gi Hwal Son1,Byung Ki Park2,Jong Suh Shin2,Xiang Zi Li4*
1Graduate Student, 2Professor, College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
3Hanwoo Research Institute, National Institute of Animal Science, RDA, Pyeongchang 25340, Korea
4Department of Animal Science, College of Agriculture, Yanji 133002, China
# These authors equally contributed to this study as first author.
* Corresponding Author: Xiang-Zi Li, Department of Animal Science, College of Agriculture, Yanji 133002, China. Tel: +86-433-243-5628, E-mail:


This study investigated the effects of π-ray treated feeds on the growth performance, carcass composition, internal organ weight, and sensory evaluation of broilers. One hundred and eighty broiler chicks were used as experimental animals. These were divided into four treatment groups according to the π-ray treated feed supplement level: 0% (control) 1%, 3%, and 5%. The π-ray treated feeds did not significantly affect on the body weight gain (2,484–2,602 g), feed intake (4,747–4,944 g), and feed efficiency (1.90–1.98) in broilers (p>0.05). Also, carcass protein (20.2–20.4%) and fat (4.6–4.9%) contents were not affected. The lengths (178.0, 182.7, 198.0, and 190.3 cm) and weights (38.4, 41.2, 44.2, and 38.9 g/kg of body weight) of the small intestine were slightly but not significantly higher in the π-ray treatments than in the control. Further, there were no overall effect of the π-ray treatment on the abdominal fat pad (2.3, 2.1, 2.1, and 1.8%), and cecum (6.7, 4.0, 5.6, and 6.0 g/kg of body weight) and gizzard (16.8, 15.2, 18.0, and 16.6 g/kg of body weight) weights of the broilers in the present study (p>0.05). The stickiness (2.25, 4.25, 4.50, and 4.38) and flavor (2.44, 4.25, 4.31, and 4.38) of cooked breast meat were higher in the π-ray treatments than in the control (p<0.01). This study also found that, in humans, eating cooked breast meat of broilers that were fed π-ray treated feeds had a positive effect on the blood circulation in the capillaries. Thus, the findings of this study suggest that dietary π-ray treatment has a positive effect on the sensory evaluation of broilers, without any negative effect on their body weight gain, feed intake, and feed efficiency, and that the consumption of these broilers is beneficial for humans on their blood circulation.

π-ray를 처리한 사료의 급여가 육계의 육성성적과 도체특성에 미치는 영향

강원대학교 동물생명과학대학 대학원생1, 교수2; 축산과학원 한우연구소3; 연변대학교 농학대학 교수4