Pathogenesis of Experimental Salmonella Gallinarum Infection (fowl typhoid) in Broiler Chicks
نویسندگان
چکیده
منابع مشابه
Reproduction of fowl typhoid by respiratory challenge with Salmonella Gallinarum.
Fowl typhoid is a disease of adult chickens and is caused by Salmonella Gallinarum infection via the alimentary tract. The experimental reproduction of fowl typhoid per os (PO) requires artificial conditions to minimize the effect of gastric acid, and several Salmonella serovars have been known to be transmitted via the respiratory route. Therefore, we have hypothesized the existence of a respi...
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Aim: To conduct detailed pathomicrobial studies on Salmonella Gallinarum infection in broiler chickens. Materials and Methods: Bacteriological and pathological studies were conducted on 134 dead poultry birds collected from 23 different farms suspected to be infected with S. Gallinarum. Results: Mortality pattern revealed that maximum mortality occurred in 1-2 week aged birds. Out of 23 Salmone...
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Four strains of Salmonella gallinarum isolated from independent cases of fowl typhoid all possessed both an 85-kilobase and a 2.5-kilobase plasmid. Each plasmid was eliminated in turn from one of the strains by transposon labeling and curing at 42 degrees C. Elimination of the small plasmid had no effect on the high virulence of the strain for newly hatched and 2-week-old chickens. Whereas oral...
متن کاملImmunoprophylactic Effects of Administering Honeybee (Apis melifera) Venom Spray against Salmonella Gallinarum in Broiler Chicks
Antibiotics continue to be used as growth promoters in the poultry industry. Honeybee (Apis melifera) venom (HBV) possesses a number of beneficial biological activities, particularly for regulating the immune system. The aim of the present study was to evaluate the immunoprophylactic effects of HBV against Salmonella Gallinarum in broiler chicks as an initial step towards developing eco-friendl...
متن کاملUsing Dietary Propionic Acid to Limit Salmonella gallinarum Colonization in Broiler Chicks
This experiment was conducted to study the effect of dietary propionic acid on inhibitory effect of Salmonella gallinarum. Day-old 144 broiler chicks were randomly distributed into four dietary treatments, three replicates per treatment. The four dietary treatments consisted of 0.0, 0.6, 1.2, and 1.8% dietary propionic acid. Chicks were challenged orally on three days of age with 10 cfu Salmone...
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ژورنال
عنوان ژورنال: Egyptian Journal of Veterinary Sciences
سال: 2016
ISSN: 2357-089X
DOI: 10.21608/ejvs.2016.1098