• Title/Summary/Keyword: Concentrate Feeding Levels

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Effects of Feeding Level of Extruded Poultry Manure on Growth Performance, Nutrient Digestibility and Body Composition in Korean Native Goats (Extrusion 가공처리 계분사료의 첨가수준이 재래산양의 육성능력, 영양소 소화율 및 체조성에 미치는 영향)

  • Kim, C.H.;Ra, C.S.;Goh, B.D.;Park, J.I.;Lin, G.Z.;Shin, J.S.
    • Journal of Animal Science and Technology
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    • v.44 no.6
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    • pp.783-792
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    • 2002
  • This experiment was conducted to investigate the effects of supplementary level of extruded poultry manure, corn and tapioca mixture (EPM) on growth performance, nutrient digestibility and body composition in korean native goats. Total 15 heads of Korean native goats (10 kg B.W.) were randomly assigned into five treatment groups (EPM 10, 20, 30, 40% and control.) and feeding trial was done for six weeks with ad libitum. Protein level of the extrudate with poultry manure was directly proportional to corn supplements rate. NFE and Ca content in EPM also were functional of the tapioca supplements levels. Daily body weight gain was significantly (p<0.05) reduced in EPM 40% group, but no significant differences were observed in other groups. Concentrate feed intake was high in EPM 10 to 30% groups, compared to the control. Feed conversion ratio also was relatively higher in EPM groups than in the control. As EPM level increased, dry matter digestibility was proportionally decreased, but that of crude protein was enhanced. Dressed carcass percentage was significantly (p<0.05) reduced with the increase of EPM level, showing control 49.7, EPM 10% 49.8, EPM 20% 48.3, EPM 30% 47.9 and EPM 40% 45.2, respectively.