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Morphological, Stereological and Histometrical Assessment of the Testicular Parameters between Holstein and Simmental Bulls International Journal of Morphology
Akosman,Murat Sirri; Lenger,Ömer Faruk; Demirel,Hasan Hüseyin.
The testicular measurement is important criteria for experimental researches especially in toxicological studies and the prediction of spermatogenesis. In light of this knowledge, we aimed to estimate and compare these parameters in two different kinds of cattle breeds. The gross anatomical measurements were performed by vernier caliper, volume of the testis was estimated by Cavalieri method and seminiferous tubule diameter was measured on the histological sections by software-loaded computer attached to microscope. The mean testis weight, length, width, volume, and tubule diameter of the Simmental bulls and the Holstein bulls measured as 316 g, 12.1 cm, 6.9 cm, 295 cm3 and 226.68 µm and 299 g, 12.1 cm, 6.8 cm, 285 cm3 and 223.44 µm, respectively. In...
Tipo: Journal article Palavras-chave: Bull; Cavalieri method; Seminiferous tubule; Testis; Volume.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300048
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Wild boars (Sus scrofa scrofa) seminiferous tubules morphometry BABT
Costa,Deiler Sampaio; Silva,José Frederico Straggiotti.
The aim of this data was to analyze morphology and function of the seminiferous tubule in adult wild boars. Testes removed by unilateral castration of five animals were used. The testicular parenchyma was composed by 82.1±2.2% of seminiferous tubule and 17.9±2.2% of intertubular tissue. The tubular diameter was 249.2±33.0 µm and the seminiferous tubule lenght per gram of testis was 19.3±4.9m. The spermatogonial mitoses efficiency coefficient, meiotic index and spermatogenesis efficiency were 10.34, 2.71 and 30.5 respectively. Each Sertoli cell supported about 13 germinatives cells. The hystometric parameters studied were very similar to those related for domestic boars, however, the wild boars intrinsic efficiency of spermatogenesis and Sertoli cells...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seminiferous tubule; Wild boar; Sus scrofa scrofa.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600008
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Testicular Histomorphometric Evaluation of Zebu Bull Breeds BABT
Andreussi,Paulo Antônio Terrabuio; Costa,Deiler Sampaio; Faria,Fábio José Carvalho; Fernandes,Carlos Antônio Carvalho; Santos,Marcelo Diniz; Silva,Juliana Correa Borges.
The objective of this study was to evaluate the quantitative histology and testicular biometrics in zebu bulls of different breeds. Testicular fragments of Nelore (n=10), Polled Nelore (n=6), Gir (n=5), Guzerat (n=5) and Tabapuã bulls (n=5) were used. The fragments were perfusion-fixed in Karnovsky solution, embedded in glycol methacrylate and stained with toluidine blue-1% sodium borate. The Nelore animals had a higher tubular volumetric proportion (85.2%) and greater height of the seminiferous epithelium (73.2 µm) than the Gir, Guzerat and Tabapuã breeds. The Nelore animals also had a higher volumetric proportion of Leydig cells (5.2%) than the Guzerat and Tabapuã breeds. There was no significant difference for any of these parameters between the Nelore...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle; Testis; Volumetric proportion; Seminiferous tubule.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000600900
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