FORMULATION AND PENETRATION TESTING OF ETHOSOME AZELAIC ACID ON ABDOMINAL SKIN WHITE MALE RATS (RATTUS NORVEGICUS) WITH FRANZ DIFFUSION CELL

A survey on helminthic infection in mice (Mus musculus) and rats (Rattus norvegicus and Rattus rattus) in Kermanshah, Iran

Parasitic infections of rodents can compromise scientific research as well as the health of the animals and humans. Based on previous studies, infection rate of parasitic helminths is different in various regions of Iran. The current survey was aimed to determine endoparasitic helminths infection in 138 trapped rodents of Kermanshah county, Iran. Mice and rats were trapped using metal snares fr...

Environmental influences on flank marking and urine marking by female and male rats (Rattus norvegicus).

Sprague-Dawley rats (Rattus norvegicus) were observed in a familiar environment. In Experiment 1 a leader entered a clean chamber, and an opposite-sex follower entered the chamber next. Both sexes began to flank mark after several sessions. Males flank marked more, and females locomoted more, but both sexes urine marked and investigated objects equally often. Leaders and followers did not diffe...

Effect of Alkaloids of Achyranthes aspera Linn. on fertility in male albino rats (Rattus norvegicus)

Quantity Discrimination in Domestic Rats, Rattus norvegicus

Quantity discrimination is a basic form of numerical competence where an animal distinguishes which of two amounts is greater in size. Whilst quantity discrimination in rats has been investigated via training paradigms, rats' natural quantity discrimination abilities without explicit training for a desired response have not been explored. This study investigated domestic rats' ability to perfor...

Effects of microcurrent stimulation on Hyaline cartilage repair in immature male rats (Rattus norvegicus)

BACKGROUND In this study, we investigate the effects of microcurrent stimulation on the repair process of xiphoid cartilage in 45-days-old rats. METHODS Twenty male rats were divided into a control group and a treated group. A 3-mm defect was then created with a punch in anesthetized animals. In the treated group, animals were submitted to daily applications of a biphasic square pulse microga...