Case Report of Mixed Infestation of Menacanthus stramineus and Menopon gallinae in Commercial Pullets in Ibadan, Nigeria

The poultry industry is crucial to Nigeria’s agricultural economy, significantly supporting food security and income. However, ectoparasitic infestations remain a major obstacle to maximizing productivity. This case report details a mixed infestation of two lice species Menacanthus stramineus (M. stramineus) and Menopon gallinae (M. gallinae) in a flock of 500 commercial pullets in Ibadan, Nigeria, focusing on clinical signs, parasitological results, and treatment approaches. Clinical examinations showed infestation in a greater population. Examination of 50 birds shows M. stramineus in 92% and M. gallinae in 68%, with 60% hosting both lice. Average lice counts were 11 to 18 per bird, respectively. Treatment involved applying a pyrethrin-based insecticide powder topically, with a second application after 10 days. Environmental cleaning and improved husbandry practices were also adopted to prevent reinfestation and eliminate lice from the farm. Mixed lice infestations can seriously harm poultry health and output. Timely diagnosis, effective treatment, and strict biosecurity are vital for sustainable poultry management