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Online Journal of Veterinary Research©

 Volume 13 (2):104-113, 2009. Extensively redacted 2017.

Serum and milk trace elements and 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  Z, Nazifi  S, Haghkhah  M, Shekarforoush  SS, Aghamiri M., Trace elements and related enzymes in clinical and subclinical bovine mastitis, Onl J Vet Res, 13 (2):104-113, 2009. Serum trace element and enzyme concentrations were evaluated in 30 cows with subclinical mastitis and positive California Mastitis test (CMT) without clinical signs, 10 with clinical mastitis and 10 healthy controls with a negative CMT test. The dominant bacteria in clinical and subclinical samples was Staphylococcus aureus (n=17). Serum manganese, copper, ceruloplasmin, glutathione peroxides and log Somatic Cell Count (SCC) in clinical and subclinical mastitic cows were higher than controls. We found 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.

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