Purba FY, Suzuki N, Isobe N. Association of endometritis and ovarian follicular cyst with mastitis in dairy cows.
J Vet Med Sci 2020;
83:338-343. [PMID:
33342970 PMCID:
PMC7972888 DOI:
10.1292/jvms.20-0652]
[Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The occurrence of multiple metabolic and inflammatory diseases in dairy cows is higher
during the periparturient period, which may be triggered by bacterial components, but not
a viable bacterium. This study aimed to determine the association of endometritis and
ovarian follicular cyst (OFC) with mastitis in dairy cows. Ninety-eight Holstein dairy
cows were clinically examined for endometritis and OFC approximately 30–50 days after
calving. Blood and milk samples were collected for the determination of milk somatic cell
count (SCC); milk interleukin-1β (IL-1β), tumor necrosis factor-α (TNFα), and
interleukin-8 (IL-8) concentrations; and plasma haptoglobin (Hp) and
lipopolysaccharide-binding protein (LBP) concentrations. Of the 98 dairy cows included in
this study, 12 were diagnosed with endometritis and 37 cows were identified as
OFC-positive, whereas the remaining 49 cows were healthy (without endometritis or OFC).
The average and maximum SCCs and plasma Hp and LBP concentrations were not significantly
different between the healthy cows and those with endometritis or OFC. However, when the
maximum SCC was classified as <300, 300–1,000, or >1,000 × 103 cells/ml,
the percentage of cows with the maximum SCC <300 × 103 cells/ml was
significantly lower in the endometritis and OFC-positive groups than in the healthy group.
These results suggested that cows with endometritis and OFC during the postpartum period
exhibit high SCC, indicating that some bacterial components can be transferred between
organs.
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