Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of Dietary Supplemental Phosphate from Different Sources on Performance of Young Broiler Chicks and It's Biological Availability

서로 다른 인 공급원들의 생물학적 이용율과 어린 육계의 능력에 미치는 영향

  • Published : 1996.12.01
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Abstract

An experiment was conducted with male broiler chicks to determine the effect of different dietary phosphorus sources and evaluate the biological availability of phosphorus sources. The biological availability of phosphorus from dicalcium phosphate (DCP) was used as a reference standard (100%) compared to defluorinate phosphate (DFP). DCP and DFP was supplemented to a corn-soy basal diet at levels of 0.05, 0.15, 0.25, 0.35%. Each of 24 pens of 10 male broiler chicks with three replications was used for three weeks. The results indicated that weight gain, feed in-take, feed efficiency, nonphytic phosphorus (NPP) and tibia ash were significantly different among treatments. Dietary supplemental phosphorus of DFP improved weight gain, NPP intake and feed efficiency consistently, whereas supplements of DCP did not show consistent increase. Regression equations was used for the availability of DPP compared with DCP when percent bone ash was a function of total phosphorus in the diet. The percent (%) bone ash of DFP groups compared to that of DCP groups showed a value of 59.98% as a slope ratio. DFP indicated lower biological availability compared to DCP, but it's dietary supplementation tended to increase bone ash and maximize the growth of young broiler chicks.

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