Características de ovários de fêmeas zebu (Bos taurus indicus), colhidos em abatedouros / Characteristics of the ovaries of zebu cows (Bos taurus indicus) collected in slaughterhouses

The ovarian characteristics of pregnant and non pregnant zebu cows (Bos taurus indicus) were studied. The ovaries were obtained in slaughterhouses, identified and divided into: group I, non pregnant animals (GI, n=43) and group II, pregnant animals (GII, n=43). The ovaries were measured and cut in their lenght for measuring and evaluation of the corpus luteum (CL) characteristics. For the GI the measures for the left ovary were 2.5 ± 0.70, 1.61 ± 0.32 and 1.22 ± 0.39cm, respectively for length, width and thickness, and 2.62 ± 0.54, 1.71 ± 0.36 and 1.21 ± 0.31cm for the right ovary. For the GII the measures for the left ovary were 2.78 ± 0.48, 1.80 ± 0.33 and 1.23 ± 0.35cm, respectively for length, width and thickness and 2.84 ± 0.50, 1.74 ± 0.45 and 1.21 ± 0.40cm for the right one. Both groups presented 51.2 percent of CL in the left ovary and 48.8 percent in the right one, with high incidence of CL enclosed and without cavity. The mean for the diameter of the CL was 1.59±0.32cm for GI e 1.82±0.35cm for GII. The results suggest the need to consider carefully the size of the ovary and the enclosed characteristics of the CL when performing gynecological examination of zebu cows via rectal palpation

Preservaçäo do sistema genital de cabras para a avaliaçäo em microscopia de luz / Preservation of goat genital system for microscopic evaluation purpose

The preservation of the goat genital organs with a fixed solution of paraformaldehyde 10 per cent and a saturated solution of Bouin during 4, 8, 12 and 24 hours of fixation, included in paraffin and stained with hematoxylin-eosin was evaluated. The Bouin solution with four hours of fixation showed to be the best protocol of fixation for the ovary, oviduct, uterus and vagina, resulting in little tissue retraction and better cellular integration when compared to the other fixing times (8, 12 and 24 hours). The fixation with paraformaldehyde showed significant alteration in the tissue architecture of the oviduct and vagina. Althouh paraformaldehyde is not the most adequate solution for the goat genital system preservation, its use can be considered in the absence of Bouin solution