2015
DOI: 10.5433/1679-0359.2015v36n3supl1p1935
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Histopathological and histomorphometric testicular characteristics associated to reproductive condition in Bos indicus (Nellore) bulls

Abstract: The aim of this study was to evaluate morphological, morphometric and functional aspects of spermatogenesis based on reproductive conditions of Nellore bulls. The study used 25 bulls Bos indicus (Nellore), which were classified as satisfactory (n=10) and unsatisfactory (n=15) for reproduction. After orchiectomy, fragments of the right testis of each animal were processed routinely and stained with hematoxylin and eosin (HE) and periodic acid-Schiff (PAS). The slides were analyzed in bright field microscopy at … Show more

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Cited by 3 publications
(5 citation statements)
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“…O excesso de gordura dietética também foi apontado por Campos- Silva et al (2015) como responsáveis pela redução da altura do epitélio do túbulo seminífero e do diâmetro dos túbulos seminíferos. No entanto, não observamos efeito (P>0,05) da inclusão da glicerina bruta sobre o diâmetro ou altura do epitélio dos túbulos seminíferos do testículo de bovinos.…”
Section: Discussionunclassified
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“…O excesso de gordura dietética também foi apontado por Campos- Silva et al (2015) como responsáveis pela redução da altura do epitélio do túbulo seminífero e do diâmetro dos túbulos seminíferos. No entanto, não observamos efeito (P>0,05) da inclusão da glicerina bruta sobre o diâmetro ou altura do epitélio dos túbulos seminíferos do testículo de bovinos.…”
Section: Discussionunclassified
“…Aqui os animais consumiram o máximo de 1 kg de glicerina bruta e 440 g de glicerol (considerando teor de 44% de glicerol na glicerina). Esse álcool é rapidamente fermentado pelos micro-organismos ruminais em propionato (van Cleef et al, 2015). O glicerol pode ainda ser absorvido diretamente pela mucosa ruminal e, dessa forma, ser metabolizado no tecido hepático à glicose (Kozloski et al, 2001).…”
Section: Discussionunclassified
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“…Begitu juga kajian histomorfometri testis pada berbagai spesies lainnya sudah banyak dilaporkan, seperti histomorfometri testis sapi fulani putih (Togun 2009), sapi shorthorn (Swierstra 1966), sapi nelore (Silva et al 2015), kambing hitam bengal (Gofur 2015), kambing kacang dan domba lokal (Noviana et al 2000), unta (Ibrahim et al 2012), babi (Straaten dan Wensing 1977), dan tikus putih wistar (Miraglia dan Hisakazu 1993). Menurut Togun (2009) ketebalan testis pada bagian tubulus seminiferous sapi fulani adalah 179,94 ± 4,64 µm, Swierstra (1966) menyebutkan ketebalan testis sapi shorthorn adalah 160,5 ± 18,9 µm, penelitian dari Silva et al (2015) menyebutkan testis pada sapi nelore memiliki ukuran 70,0 ± 0,54 µm pada ketebalan epitel, 229,8 ± 1,22 µm pada diameter tubulus dan 3,8 ± 0,04 µm pada tunika propria. Gofur (2015) menyebutkan pada kambing hitam bengal memiliki kelenjar vasikular yang lebih panjang di banding dengan kelenjar bulbouretralis…”
Section: Pembahasanunclassified
“…Each testis was divided into longitudinal halves, so the rete testis could be identified in the longitudinal axis of the testis. Next, en bloc samples of approximately 1 cm 3 in size were taken from three different locations (proximal, middle, distal), as described by Brito et al [17] and Da Silva [18]. The samples were placed into Bouin's solution for 48 h. (13 G × 3.9 cm).…”
Section: Collection Of Testicular Samplesmentioning
confidence: 99%