EFFECTS OF PROBIOTICS ON GROWTH PERFORM ANCE AND HEM ATO-BIOCHEM ICAL PARAM ETERS IN BROILER AT SYLHET

Abstract

The research was conducted to observe efficacy of commercially available probiotics on broilers. One hundred Day-Old broiler chicks (Hubbard Classic) were assigned to 4 treatment group (each group contain 25 birds). Treatment group T0 referred to control supplied with no probiotics supplementation, group T1, group T2 and group T3 provided with (Levucell ® SB), SPORICH-PLUS, and Protexin ® ). Chicks were reared for twenty eight days. Body weight was determined at seven days interval. Broilers were scarified at the end of 28 days and whole blood samples were taken for hematological and biochemical analysis. Serum samples were taken and assayed for estimation of biochemical tests. Body weight gains were increased significantly (p<0.01) in birds supplemented with probiotics compared to control group. At 7 &14 days effects on body weight among the probiotics group- T3 (Protexin ® ) worked better which gives more BW (172.964±6.94 gm) & (435.04±9.59 gm) than other two groups which were statistically significant (p>0.01). In case of body weight at 21 & 28 days among the probiotics group- T2 (SPORICH-PLUS) worked better obtained highest BW (1031.81±11.14 gm), (1464.72±13.14 gm) respectively than group T1 (Levucell ® SB), group- T3 (Protexin ® ) and control T0 which was statistically significant (p<0.01). On the other hand at 7 days among these probiotics group- T3 (Protexin ® ) had better performance on FCR (0.896±0.0007) than group T1 (Levucell ® SB), group T2 (SPORICH-PLUS), and control T0 which was statistically significant (p<0.01) in contrast of them FCR at 14 & 21 days among the probiotics group T2 had better performance (1.203±0.001) and (1.310±0.014) than group T1, T3 and control T0 which significant level was (p<0.01) but FCR in 28 days (1.410±0.014) group T2 had better performance than others and significant level was at 5 % (p<0.05). In this the experiment adding probiotics in drinking water had significant effects on these hematological parameters in Hemoglobin (Hb) and Total Erythrocyte Count (TEC) at 5 % level (p<0.05) but on Packed Cell Volume (PCV) had no significant effect p>0.05. Significant effects also found on biochemical parameters on urea (p<0.05), on the other hand effects on other biochemical parameters like Uric Acids, SGOT (AST), SGPT (ALT), Creatinine and Fat had also significant level at 1 % (p<0.01). As any probiotics had significant effects on hematological parameters-Total erythrocytes count (TEC), Hemoglobin (Hb) concentration and biochemical parameters- Urea, Uric Acids, SGOT (AST), SGPT (ALT), Creatinine and Fat the best one SPORICH-PLUS was selected on the basis of body weight gain and FCR in broilers.