Teat shape and size in relation to subclinical mastitis in friesian cows

ABSTRACT

A total of 100 Friesian cows from two farms at Giza governorate selected at random were classified on the basis of their teat shape. The results showed that cows with cylindrical teats had a significantly higher incidence of mastitis possibly due to a higher incidence of teat cup crawl. Also teats with a diameter range from 3 to 4 cm and a length from 9 to 10.5 cm showed 83.05% and 36.17% incidence of subclinical mastitis. The microbiological findings revealed that Escherichia coli and Staphylococcus epidermidis were the most prevalent infective agents and were isolated from 45.78% and 16.87% of infected quarters respectively