The effects of probiotic (Protexin) and formic acid were studied on humoral and cellular immunity in 200 Cobb broiler chicks in a completely randomized design of with 4 treatments and 5 replications (10 observations per replicate). Control group (C) did not receive any other than the base treatment. The chicks in the second (P), third (F) and forth (P+F) groups were fed with feed, which contained 0.1 g/kg Protexin, 0.8% formic acid vs. 0.1 g/kg Protexin + 0.8% formic acid in their diets, respectively. Daily feed intake weight gain. and feed conversion rates were recorded. The birds were immunized with Sheep Red Blood Cells (SRBC) on days 8 and 22 of age while serum antibody levels (produced in response to SRBC) being assessed through Hemagglutination Assay Technique on days 21, 28, 35, and 42. Skin response to Phytohemagglutinin-P (PHA-P) injected intradermally on day 16 was recorded 24 and 48 h following after injection. The weights of thymus and bursa of fabricius were also recorded following slaughter. The results indicated that daily feed intake and feed conversion rates decreased in the treatment groups (P
mirbabaie langarooi, N., mohammadi, M., & roostaei alimehr, M. (2013). Effect of Probiotic and Formic Acid on Immune System
of Broilers. Iranian Journal of animal Science, 43(4), 449-456. doi: 10.22059/ijas.2013.30265
MLA
n. mirbabaie langarooi; mehrdad mohammadi; m. roostaei alimehr. "Effect of Probiotic and Formic Acid on Immune System
of Broilers", Iranian Journal of animal Science, 43, 4, 2013, 449-456. doi: 10.22059/ijas.2013.30265
HARVARD
mirbabaie langarooi, N., mohammadi, M., roostaei alimehr, M. (2013). 'Effect of Probiotic and Formic Acid on Immune System
of Broilers', Iranian Journal of animal Science, 43(4), pp. 449-456. doi: 10.22059/ijas.2013.30265
VANCOUVER
mirbabaie langarooi, N., mohammadi, M., roostaei alimehr, M. Effect of Probiotic and Formic Acid on Immune System
of Broilers. Iranian Journal of animal Science, 2013; 43(4): 449-456. doi: 10.22059/ijas.2013.30265
)
