Congenital Abnormalities in Two Holstein Calves with Spina Bifida Occulta, Tail Absence, Achondroplasia and Brachygnathia Inferior: A Case Report

Two Holstein calves were examined at February in 2005 in a large dairy Holstein farm in suburbs of Tehran province, Iran. One of calves was 47 days old and female. Weight of calf was 35.5 kg at the time of examination. Height of calf was 72 cm from whiter to hoof Signs such as tail absence (Hypoplastic coccyx) and Spina bifida occulta were prominent on lumbosacral area. Presence of skin and hair coat at the area didn't permit neural structure of lumbar vertebrates to be exposed. Apart from the clinical signs of the calf, the calving was normal. Other calf was an I I month old female calf that was examined the same time because of respiratory disorders. In clinical evaluation, Brachygnatia inferior (Mandibular) was observed. Further clinical examination did not show other congenital abnormalities such as hair lip and Clift palate.