Reduction in the Cesarean Delivery Rate After Obstetric Care Consensus Guideline Implementation.

Objective: To evaluate the rate of primary cesarean delivery after adopting labor management guidelines.

Methods: This is a before-after retrospective cohort study at a single academic center. This center adopted guidelines from the Consensus for the Prevention of the Primary Cesarean Delivery.

Effect of aging on male reproduction in zebrafish (Danio rerio).

The study was designed to test the hypothesis that male aging is associated with a change in reproductive function in the zebrafish. Young (290 ± 37 d) and older (911 ± 48 d) males were combined with females (604 ± 24 d) to test the effect of male age on the number and fertility of eggs laid by their mates. 48% of breeding trials with young males and 25% of the trails with older males resulted in egg deposition.

Development of a novel CASA system based on open source software for characterization of zebrafish sperm motility parameters.

Although computer-assisted sperm analysis (CASA) outperforms manual techniques, many investigators rely on non-automated analysis due to the high cost of commercial options. In this study, we have written and validated a free CASA software primarily for analysis of fish sperm. This software is a plugin for the free National Institutes of Health software ImageJ and is available with documentation at .