RT Journal
T1 EFFICACY OF MICROBIAL PHYTASE AT DIFFERENT LEVELS ON GROWTH PERFORMANCE AND MINERAL AVAILABILITY IN BROILER CHICKEN
A1 Saima
A1 M. Z. U. Khan
A1 M. A. Jabbar
A1 M. Ijaz
A1 M. A. Qadeer
JF Journal of Animal and Plant Sciences
JO JAPS
SN 1018-7081
VO 19
IS 2
SP 58
OP 62
YR 2009
FD 2009/04/01
DO DOI NA
AB <p><strong>Key words</strong>: phytase, broiler, phosphorus, calcium, magnesium ) at different levels on growth performance and mineral availability in broiler chicks fed a low (0.35%) Phosphorus (P) diet. Four levels of microbial phytase (0, 250, 500 and 750 U / kg diet) were added to diets containing M.E. 3000 Kcal/kg and CP 21 %. Phytase supplementation increased (P&lt;0.05) body weight, feed intake, FCR and dressing percentage at 28 day. Supplementation of phytase @ 500 U/kg diet to the low phasphorous diet significantly (P&lt;0.05) improved toe ash percentage. Microbial phytase improved (P&lt;0.05) apparent availability of P, Ca, and Mg. Supplementation of phytase @ 250 U/kg diet was the most economical as cost/kg live weight was lesser than 500 and 750 phytase U/kg diet supplementation. The results showed that microbial phytase supplementation to a low-P diet improved growth performance and apparent mineral availability in broiler chickens.</p>
K1 phytase, broiler, phosphorus, calcium, magnesium
PB Pakistan Agricultural Scientists Forum
LK https://thejaps.org.pk/AbstractView.aspx?mid=2009-JAPS-214