Effect of Microbial Phytase in Low Phosphorus and Calcium Level Diet on the Performance and Nutrient Digestibility in Laying Hens
2005
Min, B.J. (Dankook University, Seoul, Republic of Korea) | Kwon, O.S. (Dankook University, Seoul, Republic of Korea) | Lee, W.B. (Dankook University, Seoul, Republic of Korea) | Son, K.S. (Dankook University, Seoul, Republic of Korea) | Hong, J.W. (Dankook University, Seoul, Republic of Korea) | Yang, S.J. (Jeju Provincial Government, Jeju, Republic of Korea) | Moon, T.H. (InterMax System, Inc., Seoul, Republic of Korea) | Kim, I.H. (Dankook University, Seoul, Republic of Korea), E-mail: inhokim@dankook.ac.kr
This study was conducted to investigate the effects of microbial phytase in low phosphorus and calcium level diet on the performance and nutrient digestibility in laying hens. One hundred ninety two, 50 wks old, ISA brown commercial layers were used for 12 weeks feeding trial after 7-d adjustment period. Four dietary treatments included CON (control; corn-soybean meal basal diet contained available P (aP) and Ca to meet the NRC requirement), P1 (0.01% PHYTEX, Agranco, Co.), P2 (0.06% Natuphos, BASF) and P3 (0.06% PHOSMAX, GENOFOCUS).
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