Periódicos Brasileiros em Medicina Veterinária e Zootecnia

Pathological and biochemical findings of the cows with dermatitis fed with excessive molasses

Mamak, NuriBalkan, Burcu MenekseTemizsoylu, Mustafa DogaSevgisunar, Necmettin Sarp

Background: In ruminant diets additives are widely used in ensiled forages to enhance the acidification. Molasses used asadditive could provide fermentable substrates for lactic acid bacteria and act as a fermentation stimulant. Adding molassesto materials before ensiling could decrease pH, and increase lactic acid levels and residual water-soluble carbohydrates.These changes may cause disease in farm animals. Therefore, the objective of the present study was to investigate thebiochemical and pathological changings of dairy cows which fed with excessive molasses.Materials, Methods & Results: The blood samples were collected from 10 affected (8 Holstein and 2 Montofon cows) and10 healthy (8 Holstein and 2 Montofon) cows (median age: 4.5). Skin biopsies were also taken from the skin of dorsal andrump area from two affected cows. Albumin, glucose, total protein, calcium, potassium, magnesium, sodium, phosphorous,uric acid levels were measured in blood serum samples. The serum glucose, sodium, calcium, magnesium and, uric acidconcentrations of dermatitis group revealed significantly (P < 0.05) lower values compared to control group. But no significant differences were found in total protein, albumin, potassium, and phosphorous levels between the groups. Histopathology of the skin biopsy samples from affected skin parts revealed subacute inflammatory dermatitis and subacute chronichyperplastic perivascular dermatitis. A significant (P < 0.05) reduction in the mean concentration of calcium, magnesium,and sodium were determined in the dermatitis group compare to the control group. Calcium concentration decreased to9.42 ± 0.17 mmol/L in dermatitis group. The magnesium and sodium concentrations, the mean values of the dermatitisgroup were decreased to 2.03 ± 0. 06 mEq/L and 148.30 ± 0.97 mEq/L respectively. Glucose and uric acid levels in thedermatitis group decreased significantly (P < 0.05) (53,8±3,5, 0,58±0,05) compared to the controls...(AU)

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