Parâmetros escroto-testiculares e de sêmen em caprinos adultos submetidos à insulação escrotal

Santos, D. O.; Simplício, A. A.

doi:10.1590/s0100-204x2000000900016

Cited by 17 publications

(21 citation statements)

References 12 publications

(10 reference statements)

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“…The goats with a high level of scrotal bipartition demonstrated higher values of scrotal perimeter and testicular length in the dry year period, an observation also made by Almeida et al (2010). Similarly, Villar Filho et al (1993) and Campos et al (2003), concerning morphometrical investigation of male genital organs in dry and rainy periods, suggested an interference of season on the size of the organs, whereas Santos & Simplício (2000) veriϐied the scrotal and testicular response to the increased thermal stress, induced by an insulating bag positioned over the scrotum. Moreira et al (2001) carried out a study in rams, comparable to the goat, observing that the increase on the environment temperature promoted a negative inϐluence correlation on the scrotal circumference and testicular length.…”

Section: Discussionmentioning

confidence: 91%

“…The importance of this investigation has also been based on Ferreira et al (1988), Vilar Filho et al (1993), Bailey et al (1996Bailey et al ( , 1998, Santos & Simplício (2000), Unanian et al (2000), De La Vega et al (2001), Moreira et al (2001), Campos et al (2003), Pant et al (2003), who considered, in general, the strong inϐluence of the year period on scrotal and testicular biometry in those animal species.…”

Section: Discussionmentioning

confidence: 94%

“…Several studies with cattle (Bailey et al 1996, 1998, Unanian et al 2000, Pant et al 2003, goats (Villar Filho et al 1993, Santos & Simplício 2000, De La Vega et al 2001, Campos et al 2003, and sheep (Ferreira et al 1988, Moreira et al 2001) demonstrated that the scrotal-testicular biometry seems to be a reliable indicator for the spermatic capacity of the animal; thus, depending on a susceptibility range of climatic factors during the year, regarding temperature and humidity among others.…”

Section: Introductionmentioning

confidence: 99%

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Goat scrotal-testicular biometry: Influence of the season on scrotal bipartition

et al. 2011

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RESUMO.-[Biometria escroto-testicular em caprinos: inϐluência de período do ano na bipartição escrotal.]Objetivou-se neste trabalho avaliar a biometria escroto-testicular em caprinos com escroto simples e bipartido, criados no Estado do Piauí, Brasil, nos períodos seco e chuvoso do ano. The scrotal-testicular biometry was evaluated in goats raised in Piaui state, Brazil, presenting different levels of scrotal division, in rainy and dry periods of the year. For this study, eighteen male goats at mating age were accomplished and arranged into three groups (6 animals each), obeying the classiϐication as goats with no scrotal bipartition (GI), goats showing scrotal bipartition up to 50% of testicular length (GII), and goats with more than 50% of scrotal bipartition (GIII). The biometry of the scrotal-testicular was made evaluating the scrotal length (SL), scrotal circumference (SC), testicular length (TL) and testicular volume (TV). The results were evaluated following the variance analysis (ANOVA) and the SNK test applied on the average comparisons. The analysis of the data demonstrated high values, in dry and rainy periods, of SC (24.63cm/ 26.97cm), SL (16.61cm/ 18.24cm), TL (5.32cm/ 5.93cm), TV (173.81cm 3 / 203.01cm 3 ). This supports the hypothesis of the inϐluence of the period of the year and of the scrotal bipartition on the scrotal-testicular biometry in goat.INDEX TERMS: Goats, scrotal bipartition, biometry, year-periods variability.to testicular) e o grupo III (bipartição escrotal superior a 50% do comprimento testicular). A biometria escroto-testicular consistiu do comprimento escrotal (COE), circunferência escrotal (CE), comprimento testicular (CT) e volume testicular (V). Os resultados foram submetidos à análise de variância (ANOVA), seguido do teste SNK para comparação das médias. Os dados mostraram que os animais do grupo GIII apresentaram, no período seco, os valores de CE, COE, CT e V de 24,63cm, 16,61cm, 5,32cm, e 173,81cm³, respectivamente e de 26,97cm para CE, 18,24cm para COE, 5,93cm para CT e 203,01cm³ para V, no período chuvoso. Todos esses valores foram superiores (p<0,05) aos encontrados para os animais dos demais grupos. Conclui-se que o grau de bipartição escrotal e o período do ano interferem na biometria escroto-testicular de caprinos. TERMOS DE INDEXAÇÃO: Caprinos, escroto bipartido, biometria.

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Goat scrotal-testicular biometry: Influence of the season on scrotal bipartition

et al. 2011

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“…Esse resultado pode ser explicado pelo fato de maior disponibilidade de forragem verde e menor ocorrência de temperaturas elevadas no período chuvoso (AIP) ter determinado melhoria geral das condições corporais dos animais e maior volume seminal, o que corrobora com os resultados de NUNES (1988), ao relatar que na época de chuvas o sêmen de caprinos da raça AngloNubiana apresenta melhores parâmetros quantiqualitativos do que no período de seca, provavelmente devido à maior temperatura no período seco. A redução do volume seminal indica menos secreção das glândulas acessórias, determinando ausência ou diminuição de alguns constituintes, como proteínas do plasma seminal (SANTOS & SIMPLÍCIO, 2000).…”

Section: Resultado E Discussãounclassified

Proteínas do plasma seminal de caprinos relacionadas com o índice pluviométrico e a qualidade do sêmen

et al. 2009

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“…The physiological parameters include the reproductive mechanisms, especially the gonadal dynamic, an important factor in reproductive plasticity that acts integrated with the environment and climate and the relationship between its genotype and the environment is very important for reproduction of the species (Santos et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Influence of scrotal bipartition on spermatogenesis yield and sertoli cell efficiency in sheep

et al. 2016

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RESUMO.-[Influência da bipartição escrotal sobre o rendimento da espermatogênese e eficiência das cé-lulas de Sertoli em ovinos.] Com o objetivo de avaliar o efeito da bipartição escrotal sobre a espermatogênese em ovinos, foram utilizados os testículos de 12 ovinos sem raça definida oriundos de criadouros do município de Patos-PB, Brasil, distribuídos em dois grupos, GI de seis animais com bipartição escrotal e o GII de seis animais sem bipartição escrotal. Realizou-se a aferição da biometria testicular, em seguida, os testículos foram coletados, fixados em Bouin e fragmentos foram processados para obtenção de lâmi-nas histológicas. Foi estimado o rendimento da espermatogênese e eficiência das células de Sertoli contando-se as células da linhagem espermatogênica no estádio I do Ciclo do Epitélio Seminífero, bem como as células de Sertoli. Os resultados foram submetidos à análise de variância pelo programa ASSISTAT v.7.6 e os valores médios foram comparados pelo teste Student-Newman-Keuls (SNK) a 5% de significância. Os parâmetros de biometria testicular não apresentaram diferença estatística (p>0,05) entre os grupos. Os rendimentos meiótico, espermatogênico e a eficiên-cia das células de Sertoli mostraram-se superiores em animais bipartidos (p<0,05), enquanto o rendimento mitótico não diferiu (p>0,05) entre GI e GII. With the objective to assess the effect of scrotal bipartition on spermatogenesis in sheep, the testes were used from 12 crossbred rams of sheep farms in the municipality of Patos, Paraíba, Brazil, distributed into two groups: GI with six rams with scrotal bipartition, and GII with six rams without scrotal bipartition. The testicular biometry was measured and the testes were collected, fixed in Bouin and fragments were processed to obtain histological slides. The spermatogenesis yield and the Sertoli cell efficiency was estimated by counting the cells of the spermatogenetic line at stage one of the seminiferous epithelium cycle and the Sertoli cells. The results were submitted to analysis of variance with the AS-SISTAT v.7.6 program and the mean values were compared by the Student-Newman-Keuls test (SNK) at 5% significance. The testicular biometric parameters did not show statistical difference (p>0.05) between the groups. The meiotic, spermatogenetic and Sertoli cell efficiency were higher in bipartitioned rams (p<0.05), while the mitotic yield did not differ (p>0.05) between GI and GII. The results indicated that there is superiority in the spermatogenetic parameters of bi-partitioned rams, suggesting that these sheep present, as reported in goats, indication of better reproductive indices.

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Parâmetros escroto-testiculares e de sêmen em caprinos adultos submetidos à insulação escrotal

Cited by 17 publications

References 12 publications

Goat scrotal-testicular biometry: Influence of the season on scrotal bipartition

Goat scrotal-testicular biometry: Influence of the season on scrotal bipartition

Proteínas do plasma seminal de caprinos relacionadas com o índice pluviométrico e a qualidade do sêmen

Influence of scrotal bipartition on spermatogenesis yield and sertoli cell efficiency in sheep

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