Åkerstedt, Maria
- Department of Molecular Sciences, Swedish University of Agricultural Sciences
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Research article2009Peer reviewedOpen access
Åkerstedt, Maria; Persson Waller, Karin; Sternesjö, Åse; Åkerstedt, Maria; Lundh, Åse; Sternesjö Lundh, Åse
The aim of the present study was to evaluate relationships between the presence of the two major bovine acute phase proteins haptoglobin (Hp) and serum amyloid A (SAA) and raw milk quality parameters in bulk tank milk samples. Hp and SAA have been suggested as specific markers of mastitis but recently also as markers for raw milk quality. Since mastitis has detrimental effects on milk quality, it is important to investigate whether the presence of Hp or SAA indicates such changes in the composition and properties of the milk. Bulk tank milk samples (n = 91) were analysed for Hp, SAA, total protein, casein, whey protein, proteolysis, fat, lactose, somatic cell count and coagulating properties. Samples with detectable levels of Hp had lower casein content, casein number and lactose content, but higher proteolysis than samples without Hp. Samples with detectable levels of SAA had lower casein number and lactose content, but higher whey protein content than samples without SAA. The presence of acute phase proteins in bulk tank milk is suggested as an indicator for unfavourable changes in the milk composition, e.g. protein quality, due to udder health disturbances, with economical implications for the dairy industry.
Acute phase proteins; milk quality; bulk tank milk
Journal of Dairy Research
2009, Volume: 76, number: 4, pages: 483-489
Publisher: CAMBRIDGE UNIV PRESS
Food Science
Animal and Dairy Science
Veterinary Science
DOI: https://doi.org/10.1017/S0022029909990185
https://res.slu.se/id/publ/61236