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Full-Text Articles in Medicine and Health Sciences
Immune System Dysfunction In Broiler Chickens Experimentally Inoculated With Fowl Adenovirus Serotype-4 Associated With Inclusion Body Hepatitis Hydropericardium Syndrome, Iftikhar Hussain, Muhammad Shahid Mahmood, Muhammad Imran Arshad, Masood Akhtar, Fazal Mahmood, Azhar Rafique
Immune System Dysfunction In Broiler Chickens Experimentally Inoculated With Fowl Adenovirus Serotype-4 Associated With Inclusion Body Hepatitis Hydropericardium Syndrome, Iftikhar Hussain, Muhammad Shahid Mahmood, Muhammad Imran Arshad, Masood Akhtar, Fazal Mahmood, Azhar Rafique
Turkish Journal of Veterinary & Animal Sciences
Inclusion body hepatitis-hydropericardium syndrome (IBH-HPS) in broilers is caused by an adenovirus, here referred to as inclusion body hepatitis-hydropericardium syndrome virus (IBH-HPSV). This study describes the immune status of broiler chickens experimentally inoculated with an isolate of fowl adenovirus-4 serotype-1, involved in IBH-HPS in various trials. When compared with the unchallenged controls, IBH-HPSV-inoculated broilers had significantly higher atrophy of the bursa of Fabricius (BF) by up to 2-fold, as well as of the thymus (up to 9-fold) and spleen (up to 1.5-fold) (P < 0.05), with up to 60% mortality. Upon challenge with sheep red blood cells (SRBCs), IBH-HPSV-inoculated birds had from 2- to 3-log lower anti-SRBC antibody titers than the control. Response to phytohemagglutinin-P (PHA-P) was significantly reduced in IBH-HPSV-inoculated birds (P < 0.05) as compared to the control. Results of the studies revealed that the immune status of broilers is compromised significantly during IBH-HPSV infection in terms of lymphoid organ integrity, humoral, and cell-mediated immune responses, respectively. These findings suggest that immune dysfunction could be a contributing factor in the increased mortality of birds affected by IBH-HPS, which renders the birds immunosuppressed for the rest of their lives.
Prevalence And Factors Affecting The Presence Of Campylobacter Spp. In Broiler Carcasses In Bulgaria, Hristo Daskalov, Alexander Maramski
Prevalence And Factors Affecting The Presence Of Campylobacter Spp. In Broiler Carcasses In Bulgaria, Hristo Daskalov, Alexander Maramski
Turkish Journal of Veterinary & Animal Sciences
In an 11-month study, 292 samples from 13 slaughterhouses in Bulgaria were investigated for the presence of Campylobacter spp., and some factors affecting Campylobacter prevalence were analyzed. The study revealed that 44.9% of the samples were positive for Campylobacter spp. The main species detected were C. coli and C. jejuni. There was also one confirmed C. lari isolate. The C. coli strains prevailed over C. jejuni at 61.8% and 37.4%, respectively. A seasonal variation in the Campylobacter spp. presence in slaughter broiler carcasses was found with a predominance of positive isolates during June and July 2008. The conventional type of …
Serum Lysozyme Concentrations In Broilers Treated With Sel-Plex® And Sodium Selenite And Infected With Еimeria Tenella, Vetsislav Koinarski, Lilian K. Sotirov, Stefan Denev
Serum Lysozyme Concentrations In Broilers Treated With Sel-Plex® And Sodium Selenite And Infected With Еimeria Tenella, Vetsislav Koinarski, Lilian K. Sotirov, Stefan Denev
Turkish Journal of Veterinary & Animal Sciences
The aim of the present study was to elucidate the potential role of humoral factors of innate immunity in broilers infected with Eimeria tenella under the influence of inorganic and organic Se cations. It was found that the chickens treated with Sel-Plex® had higher serum lysozyme concentrations compared to those treated with sodium selenite in infected and noninfected groups. The authors consider that Sel-Plex® has a better expressed immunostimulating effect on serum lysozyme concentrations than sodium selenite.