Abstract
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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 95-100 |
| Number of pages | 6 |
| Journal | Canadian Veterinary Journal |
| Volume | 38 |
| Issue number | 2 |
| State | Published - Feb 1 1997 |
| Externally published | Yes |
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ASJC Scopus subject areas
- veterinary(all)
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Bacteriological culture of blood from critically ill neonatal calves. / Fecteau, Gilles; Van Metre, David C.; Paré, Julie; Smith, Bradford; Higgins, Robert; Holmberg, Charles A.; Jang, Spencer; Guterbock, Walter.
In: Canadian Veterinary Journal, Vol. 38, No. 2, 01.02.1997, p. 95-100.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Bacteriological culture of blood from critically ill neonatal calves
AU - Fecteau, Gilles
AU - Van Metre, David C.
AU - Paré, Julie
AU - Smith, Bradford
AU - Higgins, Robert
AU - Holmberg, Charles A.
AU - Jang, Spencer
AU - Guterbock, Walter
PY - 1997/2/1
Y1 - 1997/2/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=0031068024&partnerID=8YFLogxK
M3 - Article
C2 - 9028592
AN - SCOPUS:0031068024
VL - 38
SP - 95
EP - 100
JO - Canadian Veterinary Journal
JF - Canadian Veterinary Journal
SN - 0008-5286
IS - 2
ER -