Cross-over Infection of Linognathus africanus and Its Economic Impact on Goat and Sheep Husbandry in Southwest Libya

Abstract

A total number of 180 heads of sheep and goats were investigated for Pediculosis (Linognathus africanus). Linognathus infestation is one of the most common problems that cause economic loss in sheep and goats in southwest Libya with a bad effect on animal welfare. Pediculosis in southwest Libya is mainly caused by linognathus africanus. This study has found cross-over infection of the parasite in goats, heavy linognathus infestation in sheep, and goats is obviously seen in winter. The Infection is mainly correlated with increased food demand in winter. Transmission is caused by direct contact, with  rapid spread in housed animals especially in overcrowded houses. Anemia, weight loss and death in young animals with decreased milk production in adults were observed. Administration of one dose of Ivermectin was enough to remove the parasite within 7-days, co-administration of Ivermectin with multivitamin was highly effective in eliminating the infection and keeping the  animal bright and healthy