Estimation of endogenous calcium and phosphorus loss in layer parent cockerels
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Date
2021-04
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Abstract
A study was carried out to estimate the endogenous loss of calcium (Ca) and phosphorus (P) in white leghorn parent cockerels.
P is one of the most important elements both in feeding and as well as environmental point of view. It is considered as one of the most
polluting nutrients in areas of intensive rearing of animals because they excrete high levels of P in their faeces. Ca and P serve a variety
of functions including structure and strength of bones and cell walls, buffering systems and also energy transfer mechanisms. While
calculating the factorial requirement of Ca and P for layers, the knowledge on the maintenance requirement and as well as amount of
minerals excreted through the eggs. For this, thirty parent cockerels were divided into three replicates each consisting of ten birds. The
birds were starved and their faeces are collected and analysed for Ca and P contents. The endogenous faecal excretion of Ca and P was
found to be about 245.24±6.94 and 101.95±1.21 mg/kg of metabolic body weight, respectively.
Description
TNV_IJPS_2021_56(1)59-62
Keywords
Veterinary Science