A dairy herd of 150 heavy pregnant freizian cows were used to study the influence of dry cow therapy on mastitis control. It was found that, this program reduced the percentage of mastitic quarters from 80.7 percent to 18.7 percent.
The use of cephalosporin as a dry cow therapy gave superior results than neomastitar, but it is worthy to note that, the treatment with cephalosporin, the antibiotic of choice 86.9% was impractical as it is not available as mastitic formula in Egyptian market.
Such practice proved to be effective against strept. dysagalactiae, strept. agalactiae, staph. aureus and E.coli in a descending manner.