Effects of environmental enrichment on reproductive performance and quantity and morphology of cumulus-oocyte complexes obtained from Rattus norvegicus.

Several researchers have observed that environmental enrichment (EE) can be effective in reducing stressful conditions and abnormal behavior and may provide better reproductive performance in rodents. In this context, this study aimed to evaluate the reproductive performance of Wistar rats reared in three different housing conditions. Animals were separated into breeding pairs, one pair per cage and pairs randomly assigned to three experimental groups (ten couples per group): control group were provided cages without any environmental enrichment; PVC group with PVC pipe; and cardboard roll group with a commercially available cardboard tube.

The Effects of Passive Smoking on Laryngeal and Tracheal Mucosa in Male Wistar Rats During Growth: An Experimental Study.

Cigarettes contain toxic and carcinogenic substances. In this context, cigarette smoking, and similar activities, are associated with numerous pathologies, being considered a risk factor in up to 10% of the total number of deaths in adults. Recent evidence suggests that the exposure of children to smoking in the early days of their development causes many diseases.

Effects of Lantana camara (Verbenaceae) on rat fertility.

Lantana camara, widely used in folk medicine, possesses several pharmacological properties, including antipyretic, antimicrobial and antimutagenic properties. Lantana poisoning causes livestock mortality and morbidity; and also has adverse effects on humans working in lantana-infested forests, pastures or orchards. We examined the effects of a hydroalcoholic extract from Lantana camara var aculeata leaves on fertility of male rats.