Sobolewska, Sylwia; Orda, Janusz; Budny-Walczak, Anna - In: Economic and environmental studies : a journal for … 15 (2015) 4, pp. 461-468
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...