New Zealand veterinary journal · 2003
Microphthalmia in Texel lambs.
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Roe W D, West D M, Walshe M T, Jolly R D
Аннотация
AIM: To describe an outbreak of congenital microphthalmia in Texel lambs in New Zealand.
METHODS: Affected eyes were fixed in 10% formol saline, processed routinely for histopathology and stained with haematoxylin and eosin, Holme's silver and haematoxylin with and without luxol fast blue, and luxol fast blue alone.
RESULTS: Macroscopically, the globes and optic nerves were hypoplastic. Histologically, all embryonic components of the eye were present, but the lens, ciliary body, iris and retina were dysplastic. Axons of the hypoplastic optic nerve were poorly myelinated.
CONCLUSIONS: Congenital microphthalmia occurs in Texel sheep in New Zealand, and is likely inherited as an autosomal recessive trait.
METHODS: Affected eyes were fixed in 10% formol saline, processed routinely for histopathology and stained with haematoxylin and eosin, Holme's silver and haematoxylin with and without luxol fast blue, and luxol fast blue alone.
RESULTS: Macroscopically, the globes and optic nerves were hypoplastic. Histologically, all embryonic components of the eye were present, but the lens, ciliary body, iris and retina were dysplastic. Axons of the hypoplastic optic nerve were poorly myelinated.
CONCLUSIONS: Congenital microphthalmia occurs in Texel sheep in New Zealand, and is likely inherited as an autosomal recessive trait.