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Studies on the diagnosis of subclinical mastitis in cows by the measurement of the electrical conductivity, 1; comparison of various methods of handling conductivity data with the use of California mastitis test and direct somatic cell count
1984
Kang, B.K. (Chonnam National Univ., Kwangju (Korea R.). Coll. of Agriculture. Dept. of Veterinary Medicine)
A total of 466 foremilk from dairy farms in Chonnam Korea [R.] district was examined for the subclinical mastitis over a period of 1 year, using a method of the electrical conductivities (EC); absolute conductivity (AC) and differential conductivity (DC) and quarter difference value (QD), in relation to the California mastitis test (CMT) and the direst somatic cell count (DSCC). The compatibility and efficiency rating between the EC values and the other screening tests was conducted
Show more [+] Less [-]Sensitivity of repeat tuberculin test with bovine PPD, seibert's fraction A(SFA) and avian PPD tuberculins in visible and non-visible lesion reactor cattle to HCSM tuberculin
1984
Choi, C.S. | Kim, J.H. | Yoon, Y.D. (Institute of Veterinary Research, Dept. of Bacteriology)
To investigate the sensitivity of repeat tuberculin test with bovine PPD, seibert's fraction A(SFA) and avian PPD tuberculins in visible and non-visible lesion reactor cattle to HCSM tuberculin. The comparative test, under the condition of this experiment, was entirely unsatisfactory to differentiate between visible and non-visible lesion cases, the high frequency distribution of the skin fold thickness greater than 10mm to SFA tuberculin appeared in visible lesion cases, whereas the skin reaction 1 less than 4mm to the SFA tuberculin appeared in NVL cases
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