Spermatogenesis in white-lipped peccaries (Tayassu pecari)

Animal Reproduction Science
Deiler S CostaTarcízio A R Paula

Abstract

We describe here morphological and functional analyses of the spermatogenic process in sexually mature white-lipped peccaries. Ten sexually mature male animals, weighing approximately 39 kg were studied. Characteristics investigated included the gonadosomatic index (GSI), relative frequency of stages of the cycle of seminiferous epithelium (CSE), cell populations present in the seminiferous epithelium in stage 1 of CSE, intrinsic rate of spermatogenesis, Sertoli cell index, height of seminiferous epithelium and diameter of seminiferous tubules, volumetric proportion of components of the testicular parenchyma and length of seminiferous tubules per testis and per gram of testis. The GSI was 0.19%, relative frequencies of pre-meiotic, meiotic and post-meiotic phases were, respectively 43.6%, 13.8% and 42.6%, general rate of spermatogenesis was 25.8, each Sertoli cell supported an average 18.4 germinative cells, height of seminiferous epithelium and diameter of seminiferous tubules were, respectively, 78.4 microm and 225.6 microm, testicular parenchyma was composed by 75.8% seminiferous tubules and 24.2% intertubular tissue, and length of seminiferous tubules per gram of testis was 15.8m. These results show that, except for overall...Continue Reading

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Citations

Oct 9, 2013·Animal Reproduction Science·Deiler S CostaSarah A Auharek
Mar 12, 2013·Animal Reproduction Science·Fabiana Cristina Silveira Alves de MeloRicardo de Mattos Santa-Rita
Sep 15, 2012·Animal Reproduction Science·Marília H RodriguesFrancisco A Fonseca
Jan 31, 2012·Animal Reproduction Science·A A N Machado JúniorM A M Carvalho
Aug 2, 2011·Animal Reproduction Science·A A N Machado JuniorM A M Carvalho
Mar 29, 2011·Animal Reproduction Science·Deiler S CostaFábio J C Faria
Mar 4, 2011·Animal Reproduction Science·Deiler S CostaTarcizio A R Paula
Apr 21, 2010·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Hui JiangQun Wang
Jul 20, 2014·Animal Reproduction Science·Ana Carolina Torre MoraisSérgio Luis P da Matta
Dec 14, 2019·PloS One·Soraia Fonseca Marinho da SilvaDanielle Barbosa Morais
Mar 17, 2017·PloS One·Danielle Barbosa MoraisSérgio Luis Pinto da Matta

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