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OJVR
Online Journal of Veterinary Research©
Volume 13 (2):104-113, 2009
Trace elements and
related enzymes in clinical and subclinical bovine mastitis
Asadi Z1, Nazifi S1, Haghkhah
M2, Shekarforoush SS3, Aghamiri M1
1Department of
Clinical Studies, 2Pathobiology and 3Food Hygiene, School of Veterinary
Medicine, Shiraz University, Shiraz, Iran.
ABSTRACT
Asadi Z1, Nazifi S1, Haghkhah M2, Shekarforoush SS3, Aghamiri M1, Trace elements and
related enzymes in clinical and subclinical bovine mastitis, Online J Vet Res, 13 (2):104-113, 2009. Serum trace elements and enzymes concentrations were evaluated in 30 cows
with subclinical mastitis and positive CMT but no clinical signs, 10 with clinical
mastitis and 10 healthy controls with negative CMT test. The dominant bacteria in
clinical and subclinical samples was Staphylococcus aureus (n=17). Results showed that the
concentrations of manganese, copper, ceruloplasmin, glutathione peroxides and
log SCC in clinical and subclinical mastitic cows were higher than those in the
control group. There were positive correlations between manganese and log SCC,
zinc and log SCC, and glutathione peroxides and log SCC and a negative relationship
between manganese and selenium. Further investigations are needed to elucidate
exact correlations between trace elements and severity of clinical and
subclinical mastitis.
Key words: Trace
elements, Superoxide dismutase, Glutathione
peroxidase, Serum, Milk, Clinical and subclinical mastitis, Cattle