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ABSTRACT The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others. publications problem uptodate up date classifications context exception (CTFB http//fauna.jbrj.gov.br/, httpfaunajbrjgovbr http //fauna.jbrj.gov.br/ , jbrj gov br (http://fauna.jbrj.gov.br/) 2015 Brazil 80 specialists 1 2024 133691 133 691 133,69 125138 125 138 125,13 82.3%, 823 82 3 (82.3% 102000 102 000 102,00 7.69%, 769 7 69 (7.69% 11000 11 11,00 . 3,567 3567 567 (3,56 2,292 2292 2 292 (2,29 1,833 1833 833 (1,83 1,447 1447 447 (1,44 1000 1,00 831 (83 628 (62 606 (60 520 (52 50 users science health biology law anthropology education others http//fauna.jbrj.gov.br/ faunajbrjgovbr //fauna.jbrj.gov.br (http://fauna.jbrj.gov.br/ 201 8 202 13369 13 133,6 12513 12 125,1 82.3% (82.3 10200 10 00 102,0 7.69% 76 6 (7.69 1100 11,0 3,56 356 56 (3,5 2,29 229 29 (2,2 1,83 183 83 (1,8 1,44 144 44 (1,4 100 1,0 (8 62 (6 60 52 (5 5 http//fauna.jbrj.gov.br (http://fauna.jbrj.gov.br 20 1336 133, 1251 125, 82.3 (82. 1020 0 102, 7.69 (7.6 110 11, 3,5 35 (3, 2,2 22 (2, 1,8 18 (1, 1,4 14 4 ( 82. (82 7.6 (7. 3, (3 2, (2 (1 7. (7

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% of CL in the left ovary and 48.8% 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.

The preservation of the goat genital organs with a fixed solution of paraformaldehyde 10% 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.

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

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