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Specific Appetite for Calcium in Broilers

Exploiting the Calcium Specific Appetite of Broilers

Published: March 30, 2012
Summary
Summary A total of 144 Cobb 500 broilers were used to investigate if modern broilers can regulate calcium intake using choice feeding. Birds were fed diets containing 0.25, 0.50, 0.75 or 1.00% total Ca and a separate Ca source (CaCO 3 ) from 1-21d. Consumption of the separate Ca source increased with decreasing Ca concentration of the mixed ration (P < 0.0001) indicating that modern broiler...
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Authors:
Aaron Cowieson
dsm-firmenich
Stuart Wilkinson
The University of Sydney
Mike Bedford
AB Vista
Dr. Peter Selle
The University of Sydney
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gerard huyghebaert
ILVO Animal Nutrition Sciences
4 de abril de 2012

An interesting paper.
In our broiler trials we found that dietary Ca-level has to be reduced at lower dietary P-concentrations. So, there is an interaction between Ca & P.

Gerard Huyghebaert

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Dr. Arshaq A Ramzee
4 de abril de 2012

A very good and interesting paper about Calcium Specific Appetite of broiler.  If I am not mistaken, author Aaron Cowieson, used to work for Danisco and later on with AB Vista before joining his current position in University.

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Analia Göttig
Engormix
4 de abril de 2012
Dear members, Please remember that the objective of this forum is to encourage sharing of scientific and technical information, ideas, findings and experiences. Thanks for your cooperation,
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Aaron Cowieson
dsm-firmenich
4 de abril de 2012

Thank you for the interest in this work about Calcium Specific Appetite of broiler. This is part of a large project to explore how digestible P and other dietary factors alter Ca appetite. We are using this model to explore Ca requirement but also with the objective of assessing the usefulness of post-pellet limestone addition which I believe will be beneficial on a whole host of metrics such as mill throughput, die wear, grit particle size selection and of course P digestibility, phytase effect and amino acid digestibility. Removing limestone from the diet appears highly beneficial. We have a paper on this topic in WPSJ 2011 (Dec) and another under review in BPS. Kind regards, Aaron.

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M.m.yaghobzadeh
6 de abril de 2012
Thank you for the interest in this work
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Philippe Joly
2 de octubre de 2012

Very interesting paper about Calcium Specific Appetite of Broiler. But I am quite sure, that , inthis result there is an interaction with an appetite for GRIT.
This could explained why there is an overconsumption of Ca with diet rich in Calcium...
Waiting your comment. Thak you

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