Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 2 (3S): 8 - 11. Special Issue-3 (Approaches in Diagnosis and Management of Diseases of Livestock and Poultry)
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Nitika Sharma*, Shivasharanappa Nayakwadi, Rajveer Singh Pawaiya, Surender Kumar, Waseem A Tailie, Souvik Paul, Anil Kumar Mishra, Kumaresan Gururaj, Ashok Kumar, Vivek Kumar Gupta, Vinay Chaturvedi
Division of Animal Health, Central Institute for Research on goats, Makhdoom, P.O. Farah – 281122, Mathura, Uttar Pradesh, India
*Corresponding author:

Nasal myiasis or oestrosis is primarily a disease of sheep (but rarely in goats, camel, deer, dog and man) caused by the infestation of nasal cavities by the larvae of botfly Oestrus ovis. Four adult goats, aged between three and five years were presented with clinical history of onset of episodes of neurological symptoms such as ataxia, staggering gait, convulsions, circling and paddling of legs. The animals were treated but the response to the treatment was very poor. The severity of neurological signs increased with time resulting in recumbency and death of the animals. On necropsy, 19 larvae were recovered from the nasal sinuses and cranial cavity of one animal, 4 from brain of another goat and one larva each from the brain of other two animals. The Oestrus ovis larvae were confirmed based on the presence of posterior ‘D ‘shaped respiratory spiracles. These very rare cases of aberrant infestation of goat brain with Oestrus ovis larvae, their clinical manifestation, pathology and public health significance have been described and discussed in detail.

Key Words: Botfly, Encephalomyelitis, Goat, Larva, Nasal myiasis, Oestrus ovis, Parasitic, Pathology