Epidemiological studies on Salmonella in a certain area. ("Walcheren project"). II. Salmonella in the mesenteric lymph nodes and rectal contents of normal pigs. 1976

W Edel, and E H Kampelmacher

All pigs slaughtered on the former island of Walcheren were examined over a one-year period for the presence of Salmonella in the mesenteric lymph nodes and rectal contents. Salmonella was demonstrated in 22.3% of the 7756 animals examined. 50 different serotypes were isolated, two of which (S. menhaden and S. mikawasima) being isolated in The Netherlands for the first time. Particulars of the farms were collected, a distinction being made between different types of farm (breeding, breeding-fattening and fattening farm), kinds of feed (pellets, pellets + meal, and meal) and numbers of fattening pigs per farm. The results show that there is a small difference in proportion of positive pigs between pellet and meal feeding in favour of pellet feeding: 20.9% against 23.7%. It is remarkable that on smaller farms (up to 100 pigs), this difference is considerably greater in favour of pellet feeding: 12 9% against 21.0%. It was also found that on farms with pellet feeding fewer serotypes were isolated on average than on farms with meal feeding.

UI MeSH Term Description Entries
D008198 Lymph Nodes They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system. Lymph Node,Node, Lymph,Nodes, Lymph
D008643 Mesentery A layer of the peritoneum which attaches the abdominal viscera to the ABDOMINAL WALL and conveys their blood vessels and nerves. Mesenteries
D009426 Netherlands Country located in EUROPE. It is bordered by the NORTH SEA, BELGIUM, and GERMANY. Constituent areas are Aruba, Curacao, and Sint Maarten, formerly included in the NETHERLANDS ANTILLES. Holland,Kingdom of the Netherlands
D012007 Rectum The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL. Rectums
D004812 Epidemiologic Methods Research techniques that focus on study designs and data gathering methods in human and animal populations. Epidemiologic Method,Epidemiological Methods,Methods, Epidemiologic,Epidemiological Method,Method, Epidemiologic,Method, Epidemiological,Methods, Epidemiological
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000821 Animal Feed Foodstuff used especially for domestic and laboratory animals, or livestock. Fodder,Animal Feeds,Feed, Animal,Feeds, Animal,Fodders
D000822 Animal Husbandry The science of breeding, feeding and care of domestic animals; includes housing and nutrition. Animal Husbandries,Husbandries, Animal,Husbandry, Animal
D012475 Salmonella A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that utilizes citrate as a sole carbon source. It is pathogenic for humans, causing enteric fevers, gastroenteritis, and bacteremia. Food poisoning is the most common clinical manifestation. Organisms within this genus are separated on the basis of antigenic characteristics, sugar fermentation patterns, and bacteriophage susceptibility.

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