SEASONAL DISTRIBUTION OF MAJOR DISEASES AMONG SHEEP AND GOATS IN SELECTED SUB HUMID AREAS IN NIGERIA

Abstract

This study into the diseases responsible for the uneven distribution of goat and sheep in the sub humid areas in Nigeria as one of the major hinderances in sheep and  goat  production  despite  the  potentiality  of  this  region  to  sustain  small ruminants. A survey of the types and causes of major diseases of small ruminants was carried out in Edo State of Nigeria which presents variants of climatic conditions that cut across the humid areas of Nigeria and Africa. The study covered a period of five years (1997‐2002) in three local government areas of the state. A total of 316 small ruminants’ cases of major diseases made up of 25 cases in sheep and 291 cases in  goats  were  recorded.  Pneumonia  contacted  by  the  ruminants  was  17%, helminthosis was 10% and was 6% as the most predominated diseases that occurred during the wet seasons than the period of dry season. Mange was high during the dry seasons and seemed to be confined almost exclusively to goats. Statistical analysis using a three‐factor analysis of variance revealed that seasonal distribution of diseases was a significant factor (p<0.05), diseases and the type of the small ruminant that contacted the diseases were significant factor (p<0.05). Most of the major diseases were frequently contracted during the wet seasons. In the Humid areas, there is need to sensitize farmers about ruminants’ health care management programmes  especially  intensive  feeding  method  during  wet  season  and  de‐worming during onset or immediately after the wet season against gastro intestinal parasites as well as the improvement of indigenous breed through semi intensive management system by the farmers