postmortem examination of a 5.5-year-old holstein cow with history of sudden death showed a veryhuge spleen (120 × 45 × 10 cm) associated with severe haemoperitoneum. histopathological findingsincluded extensive infiltration of medium to large sized lymphocytic and lymphoblastic cells with smallamounts of cytoplasm, round nuclei with coarsely granular chromatin in the spleen, and limited foci o...

A 4-year-old Holstein cow with progressive atrophy and ataxia was submitted for diagnosis. The postmortem examination revealed multifocal yellowish nodules in the pulmonary parenchyma vegetative masses mitral tricuspid valve of heart. Both kidneys were severely enlarged, multiple yellow on parenchyma. Histopathologically, abscesses, endocarditis, suppurative glomerulonephritis, fibrino-purulent...

The objective of this study was to investigate the effect of a partial substitution of soybean meal with field pea (Pisum sativum) in Holstein lactating dairy cow diets on dry matter intake, milk yield and composition, blood metabolites, rumen ammonia-N concentration and pH. Eighteen lactating Holstein cows were randomly assigned into three groups based on parity, days in milk, and mil...

Synophthalmia is a form of cyclopia, in which some elements of two eyes are fused and form a single eye in the middle region of the forehead. The head of a Holstein female calf born from a 5-year-old cow was referred to Department of Pathology, School of Veterinary Medicine, Shahrekord University due to multiple congenital anomalies. The calf had been slaughtered immediately after birth due to ...

Effects of seven breeds of cow's sire and 12 breeds of cow's maternal grandsire on preweaning performance of crossbred cows and their calves were examined in data from two experiments conducted at the Roman L. Hruska U.S. Mean Animal Research Center. Data included 1,836 records over three to five parities for 516 cows by 143 sires and by 307 maternal grandsires. The statistical model fitted eff...