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Abstract

In the accredited herds there were only 0.16% reactors to the tuberculin test. The figures since 1938-39, when reactors were 0.14%, had not exceeded 0.18%. The danger was the constant importation of cows from ad-jacent States and Counties and also uncontrolled native cattle. MASTITIS is being...

Author(s)
Hurt, L. M.
Publisher
Los Angeles, Calif: County Livestock Dept.,
Citation
Los Angeles County Livestock Department, California. Twenty-fourth Annual Report, fiscal year ending June 30th 1948., 1948, pp 50 pp.
Abstract

Tuberculin tests of all dairy cattle in Los Angeles County in 1942-43 revealed 47 reactors in 102, 548 animals (0.045%). Tests on 19, 840 dairy, cattle imported into the county disclosed 198 reactors (0.99%).
According to the rate of importation, the average period of usefulness of cows is only 2...

Author(s)
Hurt, L. M.
Publisher
Los Angeles, Calif.,
Citation
County Live Stock Department. Review Covering Recent Field and Laboratory Work in Animal Disease Control 1942-1943., 1943, pp 55 pp.