Relationship between serologic recognition of Escherichia coli 0111: B4 (J5) and clinical coliform mastitis in cattle.

J. W. Tyler; James S Cullor; Bennie Osburn; R. B. Bushnell; B. W. Fenwick

Relationship between serologic recognition of Escherichia coli 0111: B4 (J5) and clinical coliform mastitis in cattle.

J. W. Tyler, James S Cullor, Bennie Osburn, R. B. Bushnell, B. W. Fenwick

Research output: Contribution to journal › Article › peer-review

Abstract

Serum IgG1 ELISA titers recognizing gram-negative core antigens (Escherichia coli [J5]) were studied at a large dairy in central California. Population mean log10 titer was 2.7357 (equivalent to 1:544) with a SE of 0.03843. Titers increased with increased lactation number (unstandardized regression coefficient = 0.06733). Changes in lactation number accounted for only 6.77% of titer variation. Titers less than 1:240 were associated with 5.33 times the risk of clinical coliform mastitis. Also, older cattle were at greater risk to develop clinical coliform mastitis. These factors apparently affect incidence in a nonlinear fashion, with greatly increased risk associated with titers less than 1:240 and with fourth or greater lactations.

Original language	English (US)
Pages (from-to)	1950-1954
Number of pages	5
Journal	American Journal of Veterinary Research
Volume	49
Issue number	11
State	Published - Nov 1988

ASJC Scopus subject areas

veterinary(all)

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title = "Relationship between serologic recognition of Escherichia coli 0111: B4 (J5) and clinical coliform mastitis in cattle.",

abstract = "Serum IgG1 ELISA titers recognizing gram-negative core antigens (Escherichia coli [J5]) were studied at a large dairy in central California. Population mean log10 titer was 2.7357 (equivalent to 1:544) with a SE of 0.03843. Titers increased with increased lactation number (unstandardized regression coefficient = 0.06733). Changes in lactation number accounted for only 6.77% of titer variation. Titers less than 1:240 were associated with 5.33 times the risk of clinical coliform mastitis. Also, older cattle were at greater risk to develop clinical coliform mastitis. These factors apparently affect incidence in a nonlinear fashion, with greatly increased risk associated with titers less than 1:240 and with fourth or greater lactations.",

author = "Tyler, {J. W.} and Cullor, {James S} and Bennie Osburn and Bushnell, {R. B.} and Fenwick, {B. W.}",

year = "1988",

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T2 - B4 (J5) and clinical coliform mastitis in cattle.

AU - Tyler, J. W.

AU - Cullor, James S

AU - Osburn, Bennie

AU - Bushnell, R. B.

AU - Fenwick, B. W.

PY - 1988/11

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N2 - Serum IgG1 ELISA titers recognizing gram-negative core antigens (Escherichia coli [J5]) were studied at a large dairy in central California. Population mean log10 titer was 2.7357 (equivalent to 1:544) with a SE of 0.03843. Titers increased with increased lactation number (unstandardized regression coefficient = 0.06733). Changes in lactation number accounted for only 6.77% of titer variation. Titers less than 1:240 were associated with 5.33 times the risk of clinical coliform mastitis. Also, older cattle were at greater risk to develop clinical coliform mastitis. These factors apparently affect incidence in a nonlinear fashion, with greatly increased risk associated with titers less than 1:240 and with fourth or greater lactations.

AB - Serum IgG1 ELISA titers recognizing gram-negative core antigens (Escherichia coli [J5]) were studied at a large dairy in central California. Population mean log10 titer was 2.7357 (equivalent to 1:544) with a SE of 0.03843. Titers increased with increased lactation number (unstandardized regression coefficient = 0.06733). Changes in lactation number accounted for only 6.77% of titer variation. Titers less than 1:240 were associated with 5.33 times the risk of clinical coliform mastitis. Also, older cattle were at greater risk to develop clinical coliform mastitis. These factors apparently affect incidence in a nonlinear fashion, with greatly increased risk associated with titers less than 1:240 and with fourth or greater lactations.

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Relationship between serologic recognition of Escherichia coli 0111: B4 (J5) and clinical coliform mastitis in cattle.

Abstract

ASJC Scopus subject areas

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