Field survey on small ruminants pathology in Northern Cameroon. Study of risk factors of individual clinical signs emergence and herd mortality

Martrenchar Arnaud, Bouchel Didier, Zoyem N., Thiaucourt François, Lambert M.. 1997. Field survey on small ruminants pathology in Northern Cameroon. Study of risk factors of individual clinical signs emergence and herd mortality. In : Actes du Comité scientifique de Niamey (Niger), session du 7 au 12 février 1994 : Projet régional de recherche sur les petits ruminants - Cameroun, Niger, Tchad. Bourzat Daniel (ed.). CIRAD-EMVT. Montpellier : CIRAD, 53-62. ISBN 2-87614-294-5 Comité scientifique du Projet régional de recherche sur les petits ruminants, Niamey, Niger, 7 Février 1994/12 Février 1994.

Autre titre : Enquête sur la pathologie des petits ruminants au Nord-Cameroun. Etude des facteurs de risque d'apparition des signes cliniques individuels et de la mortalité du troupeau

Résumé : A survey was conducted in North and Far-North provinces of Cameroon with the aim of determining the aetiology of small ruminants herds mortality. Eight herds, 141 animals, were submitted to a weekly visit during 21 months. The emergence of individual clinical signs was noted by a field agent. Monthly, the animals were weighed and their feces were collected for coproscopic examination. At the same time, their serums were tested against the following microbes: Mycoplasma mycoides subspecies mycoides LC, M. capricolum subspecies capricolum subspecies nove, M. agalactiae, M. capricolum subspecies capripneumoniae, a Capripoxvirus and peste des petits ruminants (PPR) virus. The independent variables were province, season, species, sex, age class, climatical data, infestation level by intestinal parasites and seroconversions. At the individual level, the main results were the preponderant influence of species and season on runny nose (more frequent for sheep and in the cold dry season), of age and mycoplasmas seroconversion on contagious agalaxia syndrome and of PPR-Capripoxvirus seroconversion on slow growth. At the herd level, PPR-Capripoxvirus seroconversions explained a fraction of the observed mortalities. It is recommended to develop the field vaccination of the herds with a mixed PPR-Capripoxvirus vaccine.

Mots-clés Agrovoc : caprin, ovin, Mycoplasma, peste des petits ruminants, capripoxvirus, collecte de données, symptome, mortalité

Mots-clés géographiques Agrovoc : Cameroun

Classification Agris : L73 - Maladies des animaux

Auteurs et affiliations

• Martrenchar Arnaud
• Bouchel Didier, CIRAD-EMVT-EEE (TCD)
• Zoyem N.
• Thiaucourt François, CIRAD-EMVT-PATHOLOGIE INFECTIEUSE (FRA)
• Lambert M.

Source : Cirad - Agritrop (https://agritrop.cirad.fr/465177/)

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