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Related Experiment Videos

Precipitated bone phosphate in broiler chick diets.

B L Damron1, L K Flunker

  • 1Department of Poultry Science, University of Florida, Gainesville 32611.

Poultry Science
|September 1, 1988
PubMed
Summary

Precipitated bone phosphate and a soft-precipitated phosphate mixture effectively support broiler growth and tibia ash, showing full equivalence to dicalcium phosphate for optimal phosphorus nutrition.

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Area of Science:

  • Animal Science
  • Nutritional Biochemistry
  • Poultry Science

Background:

  • Dietary phosphorus is crucial for broiler chicken development.
  • Evaluating alternative phosphorus sources is essential for cost-effective nutrition.
  • Dicalcium phosphate is a common phosphorus standard, but its cost can be high.

Purpose of the Study:

  • To compare the efficacy of precipitated bone phosphate and a soft-precipitated phosphate mixture against dicalcium phosphate.
  • To determine the bioavailability of phosphorus from alternative sources in broiler diets.
  • To assess the impact of different phosphorus supplements on broiler performance and bone mineralization.

Main Methods:

  • Two feeding experiments were conducted using day-old Cobb x Cobb broiler chicks over 21-day periods.
  • Birds were fed corn-soybean diets supplemented with varying levels of phosphorus from dicalcium phosphate, precipitated bone phosphate, or a soft-precipitated phosphate mixture.
  • Body weight, tibia ash content, and phosphorus utilization were analyzed.

Main Results:

  • Precipitated bone phosphate and the soft-precipitated mixture supported body weights statistically equivalent to dicalcium phosphate.
  • Tibia ash results indicated statistically equal phosphorus utilization from the soft-precipitated combination at suboptimal levels.
  • The bioavailability of phosphorus from precipitated bone phosphate was 120% relative to dicalcium phosphate.

Conclusions:

  • Precipitated bone phosphate is fully equivalent to dicalcium phosphate for broiler performance.
  • A combination of soft phosphate and precipitated bone phosphate is an acceptable method for meeting broiler phosphorus requirements.
  • Alternative phosphorus sources offer viable options for broiler nutrition, potentially reducing costs.

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