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KMID : 1023520030260040323
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Korean Journal of Veterinary Service
2003 Volume.26 No. 4 p.323 ~ p.328
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Distribution of the serum Ig G titers to whole cell and leukotoxin of Mannheimia haemolytica Al in Holstein and Korean indigenous cattle slaughtered in abattoir
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Byun Jae-Won
Kim Kyung-Ho
Lee Sung-Mo
Lee Jung-In
Hwang Hyun-Soon
Kim Yong-Hee
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Abstract
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A total of 419 slaughtered cattle were used to investigate the serum Ig G titers to the Mannheimia haemolytica Al whole cell and leukotoxin recognized with important virulence factor in bacterial pathogenesis. Data obtained in this study were represented with average absorbancestandard deviation. Serum Ig G titers were detected with the ranges from 0.1 to 0.5 at 490nm. Whole cell titers were higher than leukotoxin antibody on the whole. Antibody titers of slaughtered cattle between races, ages have no significant difference but gradual decrease under aging in dairy cow for whole cell (decline mean titer from 0.29 to 0.27 according to age) was undertaken. Holstein bulls shipped from Seoul province had a significantly lower Ig G titers than those from another ones (p<0.05).
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KEYWORD
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Mannheimia haemolytica, Antibody titers, Leukotoxin
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