alexa A comparison of the cytobrush and uterine lavage techniques to evaluate endometrial cytology in clinically normal postpartum dairy cows.
Reproductive Medicine

Reproductive Medicine

Journal of Fertilization: In Vitro - IVF-Worldwide, Reproductive Medicine, Genetics & Stem Cell Biology

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,

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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

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