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Titolo:
Conglutinin and immunoconglutinin titers in stressed calves in a feedlot
Autore:
Purdy, CW; Loan, RW; Straus, DC; Briggs, RE; Frank, GH;
Indirizzi:
USDA ARS, Conservat & Prod Res Lab, Bushland, TX 79012 USA USDA ARS Bushland TX USA 79012 vat & Prod Res Lab, Bushland, TX 79012 USA Texas A&M Univ, Coll Vet Med, Dept Vet Pathobiol, College Stn, TX 77843 USA Texas A&M Univ College Stn TX USA 77843 hobiol, College Stn, TX 77843 USA Texas Tech Univ, Hlth Sci Ctr, Dept Microbiol & Immunol, Lubbock, TX 79430USA Texas Tech Univ Lubbock TX USA 79430 biol & Immunol, Lubbock, TX 79430USA USDA ARS, Natl Anim Dis Ctr, Ames, IA 50010 USA USDA ARS Ames IA USA 50010 SDA ARS, Natl Anim Dis Ctr, Ames, IA 50010 USA
Titolo Testata:
AMERICAN JOURNAL OF VETERINARY RESEARCH
fascicolo: 11, volume: 61, anno: 2000,
pagine: 1403 - 1409
SICI:
0002-9645(200011)61:11<1403:CAITIS>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSTHORACIC CHALLENGE EXPOSURE; PASTEURELLA-HAEMOLYTICA; FEEDER CALVES; BOVINE SERUM; COLLECTINS; EFFICACY; CL-43; VACCINE; CATTLE; LECTIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Purdy, CW USDA ARS, Conservat & Prod Res Lab, PO Drawer 10, Bushland, TX 79012 USA USDA ARS PO Drawer 10 Bushland TX USA 79012 shland, TX 79012 USA
Citazione:
C.W. Purdy et al., "Conglutinin and immunoconglutinin titers in stressed calves in a feedlot", AM J VET RE, 61(11), 2000, pp. 1403-1409

Abstract

Objective-To determine whether increased conglutinin titers are evident instressed calves that do not develop respiratory tract disease in feedlots,compared with respiratory tract disease, and to determine the increase in immunoconglutinin titers. Animals-101 mixed-breed beef calves. Procedure-Calves were processed at 4 farms of origin and allowed to remainwith their dams for another 100 days. Calves from each farm were brought to a centrally located order-buyer barn. In a feedlot, 101 calves were assigned to pens and observed daily for clinical signs of acute respiratory tract disease. When sick carves were detected, they were treated with antibiotics and isolated in a pen for 4 days. Conglutinin and immunoconglutinin titers were determined for all calves. Results-During the 28-day study, 73 calves developed respiratory tract disease, whereas 28 calves remained healthy. Mean conglutinin titers differed significantly among carves from the 4 farms. Significant differences were not detected in conglutinin titers among calves on the basis of sex, morbidity, or vaccination status against Mannheimia haemolytica at each farm, the order-buyer barn, or the feedlot on days 8, 15, and 28 after arrival. Immunoconglutinin titers in calves differed significantly among farms and morbidity status. Conclusions and Clinical Relevance-Mean conglutinin titers in calves do not appear to be associated with the incidence of acute respiratory tract disease; however, increased immunoconglutinin titers appear to be associated with recovery of stressed calves from respiratory tract disease during the first 15 days after arrival in a feedlot.

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Documento generato il 26/09/20 alle ore 12:08:06