Spinal Axonopathy in a Holstein-Friesian Heifer
نویسندگان
چکیده
منابع مشابه
Spinal dysraphism in a newborn Holstein-Friesian calf.
Spinal dysraphism, not associated with vertebral defect or arthrogryposis, was found in a 3-day-old Holstein-Friesian calf that was clinically diagnosed as having encephalopathy. The dysraphic lesion occurred in the sixth (C6) and seventh (C7) segments of the cervical spinal cord. Microscopically, the lesion was characterized by hydromyelia, syringomyelia, anomaly of the ventral median fissure,...
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Congenital defects present at birth occur frequently in cattle (Leipold and Dennis, 1986) and these defects may enhance perinatal mortality, decrease maternal productivity and reduce the value of defective neonates (Rousseaux, 1994). The factors responsible for causing the abnormalities are genetic, environmental or a combination of these factors (Roberts, 1971; Rousseaux, 1994). Congenitally f...
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The purpose of the heifer herd is to provide replacements for cows leaving the herd and to improve genetic progress. First-lactation cows significantly contribute to herd production and profit. A recommended goal for dairy replacement heifers is to calve at 24 months of age with a targeted postcalving body weight of 1250 pounds. A common misconception is that this goal is either unattainable or...
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A 7-month-old Holstein heifer presented with posterior paresis and megaesophagus. At post mortem examination, a nodular tumor was found attached to the thoracic wall and the eighth to eleventh thoracic vertebrae, adjacent to the left posterior pulmonary lobe. The tumor was diagnosed as rhabdomyosarcoma by histology. This is a very rare case of spinal infiltration of rhabdomyosarcoma in cattle.
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The study was carried out at Agarfa ATVET College dairy farm to evaluate the reproductive performance of Holstein Friesian× Arsi and Holstein Friesian ×Boran cattle. For the study, records compiled from 1983 to 2012 at the Agarfa dairy farm were used as original data. The effects of breed, bloodlines, season and parity on the reproductive traits were evaluated. Data were analyzed using the gene...
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ژورنال
عنوان ژورنال: Journal of the Japan Veterinary Medical Association
سال: 2021
ISSN: 0446-6454,2186-0211
DOI: 10.12935/jvma.74.233