A comparison of the incidence of tuberculosis in forty-six town supply herds in the manawatu district in 1950–51 and 1951–52

Abstract

Extract

The forty-six herds concerned were tuberculintested in 1950–51 under the provisions of the appropriate section of the Stock Amendment Act, 1945. The same herds were retested in the season 1951–52 at an interval of approximately one year from the date of the first test.