Endometrial infections are a common cause of reproductive loss in cattle. Accurate diagnosis is important to reduce the economic losses caused by endometritis. A range of sampling procedures have been developed which enable collection of endometrial tissue or luminal cells or uterine fluid. However, as these are all invasive procedures, there is a risk that sampling around the time of breeding may adversely affect subsequent pregnancy rate. This systematic review compared the pregnancy rates (PR) of cattle which underwent uterine lavage (UL), cotton swab (CS), cytobrush (CB), cytotape (CT), or endometrial biopsy (EB) sampling procedures with those that were not sampled. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) protocol, relevant databases, including Pubmed, Web of Science, CAB Abstracts, VetMed Resource–Ruminants, and Scopus, were searched. The outcome measured was the pregnancy rate after the collection of endometrial sample(s). Seven studies, involving a total of 3693 cows, fulfilled the inclusion criteria for the systematic review and allowed the comparison of PR between sampled (n = 1254) and non-sampled cows (n = 2409). The results of the systematic review showed that endometrial sampling procedures can be performed before breeding or shortly after insemination without adversely affecting pregnancy rates in cattle. However, further studies are needed to validate this information.
Details
Title
Effect of Endometrial Sampling Procedures on Subsequent Pregnancy Rate of Cattle
Creators
Orlando Ramirez-Garzon - The University of Queensland
Ricardo Soares Magalhaes - The University of Queensland
Nana Satake - The University of Queensland
Jonathan Hill - The University of Queensland
Claudia Jimenez - Universidad Nacional de Colombia
Michael K. Holland - The University of Queensland
Michael McGowan - The University of Queensland
Publication Details
Animals (Basel), Vol.11(6), 1683
Publisher
Mdpi
Number of pages
13
Grant note
School of Veterinary Science, the University of Queensland, Australia
COLCIENCIAS, Colombia; Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias