3rd International Poultry Meat Congress

Results
Phytase supplementation tended (P= 0.054) to reduce feed consumption however herbal Vit D3
enhanced feed consumption during the starter phase. Weight gain, FCR and mortality were not
affected by dietary treatments in starter phase (P> 0.05). Although phytase supplementation to
control diet improved FCR, no further improvements in FCR was detected by addition of herbal
Vit D3 to diets with phytase during d 12-41 (Table 2). After starter, 12-41 d, chicks received T6
and T7 diets had significantly lower weight gain and feed intake (P< 0.05) than T2, T3, and
T4(P 0.05). While
birds consumed diets that contain only phytase and phytase plus herbal Vit D 3
exhibited better
FCR than control group without phytase(P< 0.05), no additional improvement was obtained
with herbal Vit D 3
supplementation compared to only phytase. Higher level of herbal Vit D 3
,
0.2%, significantly decreased feed intake in low Ca and P diets compared to standart Ca, P diets
(Table 3)
Although lowering diet Ca and P level resulted significant reduction(P 0.05), (Table 4). Although tibia weight
were not affceted significantly, low level of Ca and P resulted significant decrease in ash and P
content even supplemented with phytase and/or herbal Vit D 3
compared to standart recomended
Ca and P level for broilers(Table 5).
Discussion
Phytase addition to diets that contain regular Ca-P levels did not affect weight gain, FCR and
mortality during the starter period (P> 0.05). Birds given the low Ca-P diets with phytase had
similar weight gain and FCR when compared to birds consume regular Ca-P diets in the same
period. This is in line with previous studies that indicate Ca-P level could be reduced by adding
phytase without any depression in performance (8; 9). Phytase addition improved FCR but feed
consumption and weight gain were depressed by reducing Ca-P level regardless of phytase
or panbonis during d 12-41. Data showed that vitamin D3 levels might be reduced by herbal
vit D3 addition without any adverse effect on weight gain and FCR during the starter phase
however, from d 12-41 herbal D3 addition of reduced Ca-P diets inhibited weight gain and
feed consumption. This study in line with Cheng et. al. (5) that reported no additional benefit in
terms of FCR and weight gain by inclusion of Solanum glaucophyllum (dried leaves 7.5g/kg)
with phytase (1200 FTU/kg). In the light of the results it could be assumed that phytase might
cover effects of herbal vitamin D3 source. No difference observed between level of panbonis
supplementation so it might be concluded there is no need 200 ppm panbonis addition to diets
contained phytase. Inclusion of herbal D3 with phytase had no effect on carcass parameters.
Tibia parameters of chicks fed diets that contain lower vitamin D3 level (3000 IU/kg feed) with
panbonis were similar to that of the chicks fed diets contain regular vitamin D3 level (5000
IU/kg feed) without herbal source. This result indicated that herbal vitamin D3 could replace
synthetic one in broiler diets without any adverse effect on tibia parameters. Although tibia ash
(% of DM) and tibia P (% of dry-defatted tibia) were negatively affected by decreasing levels of
Ca and P in the diets, performance of broilers were not affected in general throughout study. So
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