Optimizing Calcium, Phosphorus and Phytase Formulation in layer Diets
Published: November 4, 2014
Summary
BACKGROUND Calcium (Ca) is an essential nutrient for poultry that is generally provided to laying hens at approximately 4.6% of the total feed volume. Calcium is usually supplied to layers as a calcite grit or flour i.e. limestone (CaCO 3 ) and also as part of the inorganic phosphorus (P) supplye.g. dicalcium or monocalcium phosphate. Though, in some markets, meat and bone meal may...
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IFF - International Flavors & Fragrances
10 de noviembre de 2014
Hello there and many thanks for great paper. I would like to ask the authors to give their short view on how can high levels of Ca - as in layers - with its buffering capacity at gizzard level, but also with its chelating properties of phytate interfere with exogenous phytases?. Many thanks from Madrid, Rafa.
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3 de marzo de 2015
Specific appetite for Calcium is known for many years. The pattern intake of a separate Calcium source is related to the time of the Calcium deposit.
The problem is related to the fact that birds ingested grit to " improve digestion".
We can suppose that birds receiving the highest level of Calcium are looking for grit.
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14 de febrero de 2017
Sir which level of phosphorus is detrimental to shell thickness of egg
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Shivaram Rao
Pilgrim´s
PhD Director Principal de Nutrición y Servicios Técnicos de Pilgrim’s Pride Corporation
United States
United States
