Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
권호 표지

Effects of Supplementing of Aluminosilicate MAXIMINERAL(72) on the Performance of Broiler Chickens

규산염광물질 MAXIMINERAL(72) 첨가가 육계의 생산성에 미치는 영향

  • 이승환 (중앙대학교 산업대학 축산학과) ;
  • 서상훈 (중앙대학교 산업대학 축산학) ;
  • 엄재상 (중앙대학교 산업대학 축산학) ;
  • 백인기 (중앙대학교 산업대학 축산학과)
  • Published : 1996.09.01
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Abstract

A feeding trial was conducted to evaluate the effect of supplementing MAXIMINERAL(72)(MM), a cornmercial product of Ca, Mg-bentonite, to the broiler diet. One thousand hatched rnale broiler chickens(Cobb strain) were randomly assigned to 4 dietary treatments; MM 0% (control), MM 1%, MM 2%, and MM 2% + tricalciurnphosphate (CaP) 0.5%. Each treatment had 5 replicates of 50 birds each. Birds were grown on floor and fed ad libitum for 5 wk. Through the whole period, weight gain and feed intake were not significantly different among treatments. However, weight gain of MM 2% + CaP 0.5% group was highest and orthogonal contrast showed that the feed intake during the period of 0~2 wk was significantly(p<0.01) lower in MM supplemented groups than the control. Feed efficiency (feed /gain) of MM supplemented groups were significantly better than the control. Feed efficiency of the control was significantly(p<0.05) higher than MM 1% and MM 2% + CaP 0.5% groups but not different from MM 2% group. Contents of ash, Ca and P of tibia were not significantly different among treatments but that of P tended to be low in MM 1% and MM 2% groups. There were significant (p<0.01) differences in plasma alkaline phosphatase (AP) activity among treatments. The highest AP activity was shown in MM 2% + CaP 0.5% group followed by the control, MM 2% and MM 1% group. It was concluded that supplernentation of MM at the level of 1% of broiler diet significantly improves feed efficiency and adjustment of P level rnay further improve the performance of the broiler chickens.

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