Author(s): Kasimanickam R, Duffield TF, Foster RA, Gartley CJ, Leslie KE, , Kasimanickam R, Duffield TF, Foster RA, Gartley CJ, Leslie KE, , Kasimanickam R, Duffield TF, Foster RA, Gartley CJ, Leslie KE, , Kasimanickam R, Duffield TF, Foster RA, Gartley CJ, Leslie KE,
Abstract Share this page
Abstract This study compares cytobrush and lavage techniques for the assessment of endometrial cytology (EC) in clinically normal postpartum dairy cows. The EC samples were collected from Holstein cows (n = 35) during visit 1 (V1) at 20 to 33 d in milk (DIM) and 2 wk later during visit 2 (V2) at 34 to 47 DIM by using both techniques. A minimum of 100 cells were counted to determine the percentage of cells that were neutrophils (\%PMN). The mean \%PMN was significantly different between the techniques at V1 (P = 0.001), but not at V2 (P = 0.474). Overall, the \%PM N decreased with time postpartum (r2 = 0.36; P = 0.001), but not within V1 (P > 0.05) or V2 (P > 0.1). Uterine diameter was negatively correlated with fluid recovery by the lavage technique (r2 = 0.41; P = 0.002). The mean \%PMN was not influenced by the volume of fluid recovered in successful attempts, but 17\% (12/70) of attempts yielded no fluid. In conclusion, the cytobrush technique is a consistent and reliable method for obtaining endometrial samples for cystologic examination from postpartum dairy cows.
This article was published in Can Vet J
and referenced in Journal of Fertilization: In Vitro - IVF-Worldwide, Reproductive Medicine, Genetics & Stem Cell Biology