Trematode infections in pregnant ewes can predispose to mastitis during the subsequent lactation period

Research in Veterinary Science
Vasia S MavrogianniG C Fthenakis

Abstract

Objective was to investigate if trematode infections predispose ewes to mastitis and/or metritis. We used 80 trematode-infected ewes: primigravidae in group P-A and multigravidae in M-A remained untreated, primigravidae in P-B and multigravidae in M-B were drenched with netobimin and multigravidae in M-C were given rafoxanide. We collected faecal samples for parasitological examination, blood samples for β-hydroxybutyrate concentration measurement and uterine content, teat duct material and milk samples for bacteriological examination. We found significant differences in blood β-hydroxybutyrate concentrations between M-A, M-B and M-C during pregnancy (P ⩽ 0.002). We did not observe significant differences between groups regarding development of metritis (P>0.83). We found that for M-A, M-B and M-C ewes, respectively, median time to first case of mastitis was 5.75, 21 and 6.75 days after lambing (P = 0.003) and incidence risk of mastitis was 0.308, 0.069 and 0.222 (P = 0.047). We postulate that trematode infections predispose ewes to mastitis; perhaps, increased β-hydroxybutyrate blood concentrations adversely affect mammary cellular defences. This is the first report associating parasitic infections with mastitis in sheep.

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Citations

Jul 29, 2015·Veterinary Microbiology·A I GelasakisG C Fthenakis
Jul 2, 2015·The Journal of Dairy Research·Mariana S BarbagianniGeorge C Fthenakis
Jan 13, 2015·Veterinary Parasitology·G C FthenakisE Papadopoulos
Jul 31, 2019·Reproduction in Domestic Animals = Zuchthygiene·Natalia G C VasileiouGeorge C Fthenakis
Nov 17, 2019·Veterinary Immunology and Immunopathology·Fika Yuliza PurbaNaoki Isobe
Mar 7, 2021·Animals : an Open Access Journal From MDPI·Alexandra KahlMartin Ganter

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