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 |
Fingerprint
ASJC Scopus subject areas
- veterinary(all)
Cite this
Relationship between serologic recognition of Escherichia coli 0111 : B4 (J5) and clinical coliform mastitis in cattle. / Tyler, J. W.; Cullor, James S; Osburn, Bennie; Bushnell, R. B.; Fenwick, B. W.
In: American Journal of Veterinary Research, Vol. 49, No. 11, 11.1988, p. 1950-1954.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Relationship between serologic recognition of Escherichia coli 0111
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
Y1 - 1988/11
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.
UR - http://www.scopus.com/inward/record.url?scp=0024119708&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024119708&partnerID=8YFLogxK
M3 - Article
C2 - 3073679
AN - SCOPUS:0024119708
VL - 49
SP - 1950
EP - 1954
JO - American Journal of Veterinary Research
JF - American Journal of Veterinary Research
SN - 0002-9645
IS - 11
ER -