Document Detail

Bacteriological culture of blood from critically ill neonatal calves.
MedLine Citation:
PMID:  9028592     Owner:  NLM     Status:  MEDLINE    
The objectives of this study were to estimate the prevalence of bacteremia in critically ill, neonatal calves with severe diarrhea or depression, and to describe the variety of bacteria involved. Two studies were conducted in the summers of 1991 and 1993 involving 190 neonatal calves, 1-day to 19-days-old. Bacteremia was detected by blood culture in 31% (28/90) of calves in study 1, and in 24% (19/79) of ill calves and 0% (0/21) of control calves in study 2. Bacteria cultured from blood included Escherichia coli (51% of all isolates), other gram-negative enterics (25.5%), gram-negative anaerobes (5.9%), gram-positive cocci (11.8%), and gram-positive rods (5.9%). Among clinically ill calves, the average age was significantly lower in the blood culture-negative group (5.5 d) than in the blood culture-positive group (7.5 d) (P = 0.004). Mean serum IgG concentration was significantly (P = 0.0001) lower in blood culture-positive calves (1.146 g/L) than in blood culture-negative calves (3.077 g/L). The mortality rate was significantly (P < 0.0001) higher in the blood culture-positive group (57.4%) than in the blood culture-negative group (15.1%). Bacteremia appeared to be a frequent entity in this particular rearing situation. Early recognition of the problem, as well as appropriate treatment, may be beneficial in increasing survival rates. Results also support the need to address the failure of passive transfer of maternal antibodies to prevent bacteremia in calves.
G Fecteau; D C Van Metre; J Paré; B P Smith; R Higgins; C A Holmberg; S Jang; W Guterbock
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Canadian veterinary journal. La revue vétérinaire canadienne     Volume:  38     ISSN:  0008-5286     ISO Abbreviation:  Can. Vet. J.     Publication Date:  1997 Feb 
Date Detail:
Created Date:  1997-05-06     Completed Date:  1997-05-06     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0004653     Medline TA:  Can Vet J     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  95-100     Citation Subset:  IM    
Département de sciences cliniques (Fecteau), Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec.
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MeSH Terms
Aging / blood,  immunology
Animals, Newborn / blood*,  immunology,  microbiology*
Anti-Bacterial Agents / pharmacology
Antibodies, Bacterial / blood
Bacteremia / epidemiology,  microbiology,  veterinary*
Cattle Diseases / epidemiology*,  immunology,  microbiology
Drug Resistance, Microbial
Escherichia coli / drug effects,  immunology,  isolation & purification
Gram-Negative Bacteria / drug effects,  immunology,  isolation & purification
Gram-Positive Bacteria / drug effects,  immunology,  isolation & purification
Immunization, Passive
Immunoglobulin G / blood
Severity of Illness Index
Survival Rate
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Antibodies, Bacterial; 0/Immunoglobulin G

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