Table 2.
Pregnancy rates after endometrial sampling in cattle.
| Author | Study Design | Sampled (n) | Control (n) | Intervention (#) | Interval Procedure-Breeding | PR Sampled (%) | PR Control (%) |
|---|---|---|---|---|---|---|---|
| Etheringthon et al. [29]) | RCS | 92 | 69 | EB | NM | 37 | 39 |
| (4) | |||||||
| Kauffman et al. [20] | CS | 201 | 103 | CB | 4 h | 43.3 | 41.7 |
| (1) | |||||||
| Cheong et al. [18] | CS | 705 | 1992 | UL (1) |
19.4 d (SEM = 0.4) | PRI 31.2 MUL 29.1 |
36.5 28.1 |
| Goshen et al. [31] | CC | 44 | 157 | EB (1) |
40.5 d (5–111) |
44.4 | 38.9 |
| Pugliesi et al. [27] | EB (1) | EB 31.6; UL 28.6 ** | 40.5 ** | ||||
| CS | 73 | 37 | 6 d * | ||||
| UL (1) | EB 26.3; UL 17.1 *** | 40.5 *** | |||||
| Thome et al. [30] | RCS | 93 | 35 | UL (1) | 4 h after AI | 57 ± 5.1 | 54 ± 8.4 |
| Martins et al. [28]) | CS | 46 | 16 | UL (1) | 6 d, 3 d and 0.5 d *** | Day 1 (60) Day 4 (29.4) Day 7 (37.5) |
62.5 |
RCS: randomized controlled study; CS: cohort study; CC: case control study; UL: uterine lavage; EB: endometrial biopsy; CB: cytobrush; AI artificial insemination;* time of breeding after intervention; ** 30 days of pregnancy assessment after breeding; *** 60 days of pregnancy assessment after breeding *** interval from UL to embryo transfer (ET)(day 7.5 postoestrus).