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Direct Research Journals
Direct Research Journal of Veterinary Medicine and Animal Science (DRJVMAS):Vol.2 (2), pp. 14-19, March 2017
International Standard Journal Number ISJN: A4372-2601

A case of chronic Aspergillosis in a flock of commercial pullets, at Bado Quarters, Sokoto Nigeria
Article Number: DRJA110933087

Original Research Article

Muhammad, S.,*1 Bello, M. R2.,  Adamu, Y.A.3,  Mera, U. M.,3 Bello, A.4,  Shehu, Z., 1Baki, A. S.,5 and  Mungadi, H. U.1

1Veterinary Teaching Hospital, Usmanu Danfodiyo University Sokoto,Nigeria.

2Department of Animal Health, Umaru Ali Shinkafi  Polytechnic Sokoto,Nigeria.

3Department of Veterinary Medicine, Usmanu Danfodiyo University Sokoto,Nigeria.

4Department of Veterinary Anatomy Usmanu Danfodiyo University Sokoto,Nigeria.

5Department of Microbiology, Faculty of Science, Usmanu Danfodiyo University Sokoto,Nigeria.

*Corresponding author E-mail:

date Received: February 3, 2017     date Accepted: March 3, 2017     date Published: March 15, 2017


A case of increasing mortality, progressive emaciation, blindness and chronic respiratory distress was reported to Veterinary Teaching Hospital, Usmanu Danfodiyo University Sokoto Nigeria, in a flock of 600 pullets, at Bado Qts Area Sokoto. The condition was refractory to conventional chemotherapy and regular vaccination schedule was adhered to. A total of 325 birds from a flock of 600 pullets representing 54.2% mortality were recorded over a 4 month’s period. Occasional respiratory distress, coughing, severe emaciation, and blindness were common findings prior to death. Birds were raised on commercial grower’s mash, which was stored for over 3 months in the farm. Postmortem findings revealed periocular oedematous lesions and blindness, grossly emaciated carcases, anemia, with numerous diffused grayish granulomatous lesions in most of the viscera. Some bags of stored feed were moldy. Laboratory findings revealed low hematocrit values, leucocytosis and elaborate growth of Aspergillus fumigatus, from the nodular lesions and sampled feed.  Mycobacterial infection and Merek’s disease were ruled out, as confirmation of Chronic Aspergillosis was made.

Key words: Pullets, Blindness, Moldy feeds, Chronic Aspergillosis, Sokoto