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논문 기본 정보

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학술저널
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한국축산학회(구 한국동물자원과학회) 한국축산학회지 한국축산학회지 제56권 제6호
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2014.1
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1 - 5 (5page)

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초록· 키워드

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An experiment was conducted to evaluate the effect of form and particle size of feed supplemented with L- threonineon growth performance, carcass characteristic and blood biochemical parameters of broiler chickens. The experimentaldesign was a 2 × 2 × 2 factorial arrangement of treatments evaluating two feed forms (pellet or mash), two feed particlesizes (fine or course), and two inclusion rates of dietary L-threonine (with or without) which adopted from 7 to 42 daysof age. In this experiment, 360 a day old chicks in two sexes were assigned in each treatment and each experimentalunit was included 15 chicks. Feed consumption and weight gain were measured weekly. At 35 days of age, bloodsamples were taken to analysis blood biochemical parameters. At the end of the experimental period, two birds wereslaughtered in each treatment and carcass analysis was carried out. The results showed that the effect of feed form onbody weight gain and feed intake in whole of experimental period was significant (P < 0.05). Broilers fed pelleted dietshad more weight gain than the mash group. Growth performance parameters were not affected by feed particle sizeand dietary L-threonine supplementation in whole of experimental period (P > 0.05). The results of carcass analysisshowed that liver and gizzard relative weights were influenced by feed form (P < 0.05). However, pancreas and liverrelative weights were affected by feed particle size and dietary L-threonine supplementation, respectively (P < 0.05). Triglyceride and VLDL levels were affected by feed form and dietary L-threonine supplementation (P < 0.05). The effectof feed particle size on blood biochemical parameters was not significant (P > 0.05). In conclusion, the experimentalresults indicated that feed form increased feed consumption and weight gain in whole of experimental period(1 to 42 days of age) while feed particle size and dietary L-threonine had no effect on broiler performance.
#L-threonine #Feed form #Broiler #Performance

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참고문헌 (14)

참고문헌 신청
Amerah AM / 2007 / Influence of feed particle size and feed form on the performance, energy utilization, digestive tract development, and digesta parameters of broiler starte google schola Amerah AM / 2008 / Influence of feed particle size on the performance, energy utilization, digestive tract development, and digesta parameters of broiler starters fed wheat- google schola Behnke KC / 1996 / Feed manufacturing technology: current issues and challenges / Anim Feed Sci Technol 62 : 49 ~ 57 google schola Dozier WA / 2000 / Threonine requirement of broiler males from 42 to 56 days in a summer environment / J Appl Poult Res 9 : 460 ~ 467 google schola Ebrahimi R / 2010 / Effect of feed particle size on the performance and carcass characteristics of broilers / Int J Anim Vet Adv 9 (10) : 1482 ~ 1484 google schola

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