this study was designed to evaluate serum and milk amyloid a (saa) as an inflammatory indicator in inflammatory diseases. twenty clinically healthy cows and 100 cows with various inflammatory diseases were selected for this study. blood samples were collected from the coccygeal vein of both healthy and diseased groups. milk samples were taken from four quarters of both groups. milk samples of f...

First-calf heifers were fitted with five different intramammary device models prior to, or within 2 mo after parturition. Each model represented an increase in the weight of the device to be supported by the epithelial cells of the gland cistern. Each model was tested in four animals by placing devices in two quarters while remaining quarters served as controls. Foremilk and stripping quarter s...

The periodic trimming of the long hairs growing at the distal end of the tail -switch trimming- is humane alternative of tail docking. The purpose of this study was to determine the influence of switch trimming on somatic cell count (SCC), California mastitis test (CMT) and udder cleanliness of lactating cows in a free-stall dairy farm. In the present study, 219 healthy, pregnant Holstein cows ...