in order to examine the effect of using rumen protected methionine (mepron, evonik industries, hanau, germany) on productive and reproductive performance under field condition, 195 holstein cows were used in a unbalanced completely randomized design and 2 groups. experimental treatments consisted of: 1) control group with 110 holstein dairy cows (71±51 dim and 47.5±12 milk yield) and without me...

A 5-year-old Holstein-Friesian cow was presented with a primary problem of difficult in parturition (Dystocia). This was the third calving for the cow. A disoriented foetus was palpated per rectum, and on vaginal examination the head of the foetus was palpated which was ventral to the body of the foetus. A caesarotomy (caesarean section) was performed which aided in the diagnosis of a shistosom...

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 ...

The objective was to evaluate 6 different lactation curve models for daily water and dry matter intake. Data originated from the Futterkamp dairy research farm of the Chamber of Agriculture of Schleswig-Holstein in Germany. A data set of about 23,000 observations from 193 Holstein cows was used. Average daily water and dry matter intake were 82.3 and 19.8 kg, respectively. The basic linear mixe...

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...

We investigated the concentration of the bacterial endotoxin lipopolysaccharide (LPS) in the blood, ovarian follicular fluid and uterine fluid of a clinical case of bovine metritis. A 2-year-old lactating Holstein cow exhibited continuous fever >39.5°C for more than 2 weeks after normal calving. The cow produced a fetid, watery, red-brown uterine discharge from the vagina and was diagnosed with...

Case DescriptionAn eight-year-old Holstein cow with inflammed and abnormal left eyelid was referred to the veterinary clinic of Shahid Bahonar University of Kerman. Treatment and OutcomeBecause of involvement of all structures of the eye, exentration was done and abnormal tissues sent for histopathologic examination. Microscopic evaluations revealed mononuclear histiocytes filled with lipid in ...