| Abstract | Mastitis was induced by infusion of 3,000-7,000 colony-forming units of Klebsiella pneumoniae into the left rear quarter of four primiparous Holstein-Freisians. Greater than 100 organisms were recovered from a quarter milk sample within 2 hr and in 87.5% of the hourly cultures taken after 8 hr. Bacteria, California Mastitis Tests, somatic cell counts and N-acetyl-beta-D-glucosaminidase levels differed significantly from that of control quarters in infused cows after hr 6, 8, 9 and 9 respectively. High correlations were obtained between somatic cell count and N-acetyl-beta-D-glucosaminidase (r = .97) and N-acetyl-beta-D-glucosaminidase and natural log bacterial count (r. = .88). N-acetyl-beta-D-glucosaminidase was related to natural log bacterial counts of samples taken 1, 2, 3, and 4 hr prior to the test (rN-acetyl-beta-D-glucosaminidase and natural log bacterial count (r = .91, .92, .93, and .95). |
| Authors | J R Kunkel, R B Bushnell, J Cullor, J Aleong
(Affiliation: Department of Animal Science, University of Vermont, Burlington 05405.)
|
| Journal | The Cornell veterinarian
(Cornell Vet)
Vol. 77
Issue 3
Pg. 225-34
(Jul 1987)
ISSN: 0010-8901 UNITED STATES |
| PMID | 3315443
(Publication Type: Journal Article)
|
| Chemical References |
- Hexosaminidases
- Acetylglucosaminidase
|
| Topics |
- Acetylglucosaminidase
(analysis)
- Animals
- Cattle
- Cell Count
- Female
- Hexosaminidases
(analysis)
- Klebsiella Infections
(enzymology, pathology, veterinary)
- Klebsiella pneumoniae
- Mastitis, Bovine
(enzymology, microbiology, pathology)
- Milk
(analysis, cytology, enzymology, microbiology)
|
