Congenital bilateral clinical anophthalmia and brachygnathia superior in a fighting bull calf

  1. Seva, Juan 1
  2. Sanes, José Manuel 1
  3. Bueno, Juan Manuel 2
  4. De Jódar, Carlos 1
  5. Soler, Marta 3
  6. Bayón, Alejandro 3
  7. Párraga‐Ros, Ester 1
  1. 1 Department of Anatomy and Comparative Pathology, Veterinary Teaching Hospital University of Murcia Murcia Spain
  2. 2 Optics Laboratory, Center for Research in Optics and Nanophysics University of Murcia Murcia Spain
  3. 3 Department of Animal Medicine and Surgery, Veterinary Teaching Hospital University of Murcia Murcia Spain
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Revue:
Clinical Case Reports

ISSN: 2050-0904,  2050-0904

Année de publication: 2023

Volumen: 11

Número: 5

Type: Article

DOI: 10.1002/CCR3.7159 WoS: WOS:000989296600001 GOOGLE SCHOLAR lock_openAccès ouvert editor

D'autres publications dans: Clinical Case Reports

Résumé

This study describes a case of a 20-day-old male fighting bull with bilateral clinical anophthalmia and brachygnathia superior whose dam was 12.5years old and was mistakenly dewormed with ivermectin intramuscularly in the first third of gestation in a livestock farm. A macroscopic examination of the carcass was performed, with a special focus on the ocular components. Eyeball remains were found in both orbits and a histopathological examination was performed on them. Antibodies by serological study against bovine herpes virus-1, respiratory syncytial virus and bovine viral diarrhea virus for both the cow and the calf were not detected. The calf had small orbits and inside them a white and brown mass of soft consistency. Microscopically, abundant muscular and adipose tissue was observed, alongside nervous structures and vestiges of ocular structures with stratified epithelium and abundant connective tissue with glands. No evidence that this congenital bilateral anophthalmia had infectious or hereditary origin was found. By contrast, the malformation could be related to the treatment with ivermectin during the first month of gestation.

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