SynthesisReproduction in domestic animals = Zuchthygiene2026
Does the Use of a Sanitary Sheath During Artificial Insemination Improve Pregnancy Outcomes in Cattle? A Systematic Review With Meta-Analysis.
Synthesis in Reproduction in domestic animals = Zuchthygiene, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
3 authors.
Funding
Abstract
Sanitary sheaths (SS), used to reduce reproductive-tract contamination during bovine artificial insemination (AI), have shown inconsistent associations with pregnancy per AI (P/AI). This systematic review with meta-analysis evaluated whether SS use improves P/AI compared with AI without SS. The primary analysis comprised six independent cohorts contributing seven P/AI strata and 11,367 inseminations. Risk ratios (RRs) were pooled using random-effects models with restricted maximum likelihood estimation and Hartung-Knapp adjustment. The use of SS did not significantly improve P/AI (RR = 1.07; 95% CI: 0.94-1.21; p = 0.245), although the point estimate corresponded to approximately 3.5 additional pregnancies per 100 inseminations. Heterogeneity was moderate (I
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