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Oversupply of calcium (Ca) is a growing concern in broiler diets, impacting poultry nutrition. Recent research focuses on digestible Ca and its interaction with phosphorus (P) for optimal broiler growth.

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Area of Science:

  • Poultry Nutrition
  • Animal Science
  • Nutrient Metabolism

Background:

  • Calcium (Ca) is vital for poultry skeletal development, with 99% in bones.
  • Oversupply of Ca, not deficiency, is the current challenge in commercial broiler diets.
  • The shift to digestible phosphorus (P) necessitates re-evaluating digestible Ca due to their interrelationship.

Purpose of the Study:

  • To review recent advances in calcium nutrition for broilers.
  • To discuss the interplay between calcium and phosphorus in poultry.
  • To cover homeostatic control, Ca sources, and digestibility factors.

Main Methods:

  • Review of current scientific literature on calcium and phosphorus metabolism in poultry.
  • Analysis of data on ileal digestibility of Ca and P in feed ingredients.
  • Examination of preliminary data on digestible Ca and P requirements at different broiler growth stages.

Main Results:

  • Established the critical role of calcium in poultry skeletal health.
  • Highlighted the emerging issue of calcium oversupply in broiler feed formulations.
  • Presented data on Ca and P ileal digestibility and requirements.

Conclusions:

  • Re-evaluation of calcium nutrition is essential in modern broiler diets.
  • Understanding Ca and P interactions is key for optimizing poultry growth and health.
  • Further research into Ca sources and digestibility factors is warranted for improved feed formulations.