Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effects of Molasses Addition and(or) Pelleting on Nutritional Characteristics of Broiler Litter Processed by Ensiling or Deepstacking and Palatability Improvement by 'Hanwoo' During the Adjustment Period

육계분 혐기 또는 퇴적 발효 사료 제조 시 당밀 첨가 및 펠렛화가 사료영양적 가치 및 사료 적응기의 한우 기호성 개선에 미치는 영향

  • Kwak, W. S. (Animal Science, School of Life Resource and Environmental Science, College of Natural Sciences, Konkuk University) ;
  • Park, J. M. (Animal Science, School of Life Resource and Environmental Science, College of Natural Sciences, Konkuk University)
  • 곽완섭 (건국대학교 자연과학대학 생명자원환경과학부 축산학전공) ;
  • 박종문 (건국대학교 자연과학대학 생명자원환경과학부 축산학전공)
  • Published : 2003.02.28
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Abstract

This study was conducted in order to determine a proper level of molasses addition through the analysis of changes in appearance, nutritive and silage parameters before and after ensiling or deepstacking of broiler litter, to evaluate the effect of pelleting processed broiler litter and to develop methods to enhance palatability of broiler litter and reduce the adjustment period by ‘Hanwoo’ steers. Molasses addition was effective in ensiling and deepstacking of broiler litter and the proper addition level was about 5%. Changes in nutritive values of broiler litter by ensiling and deepstacking with or without molasses treatment were not great. Adding 5% molasses at deepstacking of broiler litter did not affect(P<0.05) in vitro digestion of dry matter and organic matter. Pelleting of broiler litter resulted in significant(P<0.05) moisture evaporation, organic matter reduction and nearly threefold increase of bulk density. Pelleting or molasses addition of broiler litter improved palatability by ‘Hanwoo’ steers and reduced the adjustment period by half(8-9 d).

본 연구는 육계분 혐기 또는 퇴적 발효사료 제조 시의 적정 당밀 첨가 수준을 도출하고, 발효 전 후의 영양적 및 발효 성상의 변화를 구명하고, 펠렛 처리 효과를 평가하며, 그리고 기존의 한우 사양 체계에서의 당밀 또는 펠렛 처리된 육계분 발효사료 급여 시 한우에 의한 기호성 개선 통한 적응기간 단축 효과를 평가하고자 실시되었다. 육계분의 혐기발효 시 경제적이고도 효과적으로 혐기발효를 일으키는 당밀 적정 첨가 수준은 5%인 것으로 사료되었다. 육계분의 혐기 또는 퇴적발효 시 당밀 5% 첨가는 발효 성상을 향상시키나(P<0.05), 화학적 성분과 in vitro 영양소 소화율에는 현저한 영향을 미치지 않았다. 육계분 퇴적발효사료의 펠렛화는 밀도(중량/부피)를 3배정도 증가시키고, 수분을 현저히(P<0.05) 증발시켰으나, 약간의 유기물 감소(P<0.05) 현상을 보였다. 육계분 발효사료를 펠렛 처리 또는 당밀 첨가는 한우에 의한 기호성을 뚜렷하게 향상시켰으며, 결과적으로 한우의 이들 사료에 대한 적응기간을 반 정도(8-9일)로 단축시켰다. 종합적으로 육계분 발효사료 제조 시 당밀 첨가 또는 펠렛 처리는 사료영양적 가치를 유지하면서 적응기간동안의 한우 기호성을 현저하게 개선시키는 효과가 있었다.

Keywords

References

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