Pesq. Vet. Bras. 34 (7) Universitária s/n, Patos, PB 58700-970, Brazil. E-mail: mikaeltolentino@gmail.com Forty-two crossbred rams were used, divided according to their scrotal configuration. Twelve of these animals were used to investigate the testicular biometry and scrotal skin histology. The other animals were used to study the spermatic cord. The animals were placed in a group of 21 animals without scrotal bipartition (GEI) and another with scrotal bipartition (GEII) which did not reach 50% of the length of the scrotum's longitudinal axis. In each group, scrotal skin fragments from six rams and spermatic cord fragments from 5 others were collected, processed by routine histological tests and analyzed with a microscope. In 10 rams latex was injected into the testicular artery to obtain vascular molds and the artery length. Comparison of groups GEI and GEII showed no significant statistical differences (p<0.05) between scrotal thickness (epidermis and dermis), histological constituency of the scrotal skin, number of sudoriferous glands per area, scrotal bipartition length or testicular biometric parameters. However, the total length of the testicular arteries of GEI was greater than of GEII (p<0.05). It was concluded from the morphological parameters analyzed that scrotal bipartition in rams did not influence the skin structure, scrotal bipartition or testicular biometry when compared with animals that did not present this characteristic. Further studies should be carried out to elucidate the appearance of this characteristic in rams and whether it is desirable or not for improved production of these animals in warm climate regions.
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