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Effect of phytase in blood hematological and serum biochemistry of broiler chickens
Abstract
Experiments were conducted to examine the effect of broilers with or without phytase supplementation on blood hematological and serum biochemistry of broiler chickens. A total of 180-day-old Cobb 500 broilers were randomly assigned to four treatment diets in completely randomized design (CRD) replicated three times with 15 chicks each.
 The design of the experiment is a completely randomized design (CRD) and the birds were fed experimental feed having phytase at the dose rate of 0, 300, 600, 1200 FTU/kg for 42 days. There were significant differences (P<0.05) among treatments for Packed cell volume (PCV),Hb and WBC. However, there were no significant (P>0.05) differences in RBC count, MCV, MCH, MCHC of broilers fed the diet supplemented with enzymes. Total protein, albumin and globulin values did not significantly (P>0.05) increased in supplemented groups as compared to the T1 control (group) at whole growth period. The calcium concentration ranged from 1-1.49% and 0.75-0.89% whereas phosphorus ranged from 0.37-0.52% and 0.28-0.44% in starter and finisher diets, respectively and it is within the range recommended in broiler ration (NRC, 1994). According to the present result of partial budget analysis, broiler chicken in T4 returned a higher profit than those grouped to T2, T3 and T1 respectively. The use of phytase is potentially profitable than feeding control. There was no significant difference (P>0.05) in mortality percentage between the treatments.
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