publication . Article . 2015

Differential influence of phytase supplementation on the balance of phosphorus and other elements in laying hens' feed

Sobolewska, Sylwia; Orda, Janusz; Budny-Walczak, Anna;
Open Access English
  • Published: 01 Jan 2015
  • Publisher: Opole: Opole University, Faculty of Economics
Abstract
The aim of this study was to evaluate the impact of microbial phytase addition to laying hen diet on the balance of phosphorus, calcium, manganese and zinc. Phytase supplementation caused a decrease in phosphorus excretion by 8% in the group with low-phytase diet and 21% in the group with phytase addition of 1000 FTU (one unit of phytase activity) to a diet. Phytase supplementation increased the retention of phosphorus by 31% in laying hens receiving 500 FTU and 57% in the group with phytase addition of 1000 FTU to a diet, in comparison to the group without enzyme supplementation. The level of manganese in excretion was increased by 18% in the group receiving 10...
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free text keywords: I, Q, phytase, laying hens, phosphorus, calcium, manganese, zinc, ddc:330
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