Biological Availability of Commercial Feed Phosphates

Biological and medical significance of calcium phosphates.

The inorganic part of hard tissues (bones and teeth) of mammals consists of calcium phosphate, mainly of apatitic structure. Similarly, most undesired calcifications (i.e. those appearing as a result of various diseases) of mammals also contain calcium phosphate. For example, atherosclerosis results in blood-vessel blockage caused by a solid composite of cholesterol with calcium phosphate. Dent...

Extreme Availability: Determining the Limits of Availability in Commercial Systems

High availability has become increasingly important to businesses with the advent of the Web and various associated e-commerce services. This paper describes the key attributes of the very highest availability systems. Such systems and their associated support environments are qualitatively different than other systems, even other high availability systems; for the purposes of this paper these ...

Biological availability of phosphorus in defluorinated phosphates with different phosphorus solubilities in neutral ammonium citrate for chicks and pigs.

Two experiments were conducted to assess the bioavailability of P in five sources of defluorinated phosphate (DFP) that differed in P solubility in neutral ammonium citrate (NAC). In Exp. 1, 384 2-d-old male chicks were fed a corn-cornstarch-dextrose-soybean meal basal diet (1.22% lysine, 1.00% Ca, .45% P) or the basal with .05 or .10% P from monosodium phosphate (MSP), or .10% P from DFP with ...

Effects of Exogenous Feed Enzymes on Dietary Energy Availability

Introduction Enzymes are proteins and are present in all living cells, where they facilitate and/or regulate the numerous chemical reactions taking place. Enzymes act by recognizing and binding to its substrate (i.e., the molecule on which it acts) and usually only act on only one (1) specific substrate. Depending on the type of enzyme, it will then break specific bonds in the substrate, releas...

Effect of Feed Restriction on Performance and Immune Response of Two Commercial Broiler Strains