Impact of sodium butyrate on stimulating of some host defense peptides and body performance in broiler vaccinated with different avian influenza (H9N2) vaccines

Abstract

Our study is designated to determine the impact of SB in the induction HDPs, including AvBD-10 and CATH-B1, accompanied by two different inactivated H9N2 vaccines and their effect on body performance. One hundred fifty, day-old chicks were separated into five groups (30 chicks for each, three replicates): groups A and C were vaccinated with classical avian influenza H9N2 and developed H9N2P inactivated vaccines, respectively, but groups B and D were treated with sodium butyrate (SB) by a dosage of 1gm/liter of drinking water daily till the end of the trail, and these groups (B and D) received the same type of vaccines as they given to group A and C respectively, while group E is a control group. The results illustrated that SB improved the AvBD-10 level significantly in the treated group (B and D) at 14 days in comparison with groups A and E, but without significant with group C. Whereas at 35 days, this improvement occurred distinctly in treated groups B and D. The same improvement revealed with CATH-B1 at 35 days of experiments. Moreover, the supplementation of SB improved FCR in groups B and D at 35 days of the experiment, respectively, but no influence on WG between all groups at the same age. Thus, we concluded that supplemented SB enhanced innate immunity by stimulating the induction of AvBD-10 and CATH-B1. Also, these supplementations improved FCR but did not influence WG.

Using T cell lymphokines of hyperimmunized chickens with Salmonella pullorum to enhance immune response of layer hens against avian influenza

“…AIV is one of the viruses with a high potential for devastation in commercial chicken production, which results in massive economic losses, especially in breeder and layer flocks (3). Depending on the strains, hosts, and stages of infection, cytokines can have varying beneficial effects on the pathogenesis of the influenza virus (HPAI) (4,5). Studies on influenza-infected mice showed an increased inflammatory response and dysregulated cytokines, which led to a high mortality rate (6).…”