Correlation between sperm characteristics and testosterone in bovine seminal plasma by direct radioimmunoassay

Souza, Luiz Waldemar de Oliveira; Andrade, André Furugen Cesar de; Celeghini, Eneiva Carla Carvalho; Negrão, João Alberto; Arruda, Rubens Paes de

doi:10.1590/s1516-35982011001200015

Cited by 13 publications

(8 citation statements)

References 12 publications

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“…In humans, seminal T concentration can be both positively or negatively correlated with sperm quality 14,42 . In nellore bulls ( Bos indicus ) there was a negative correlation of seminal T concentration with the number of sperm deficits 43 , but another study found no such correlations at all 44 . In birds, the literature is very scarce: In domestic chickens ( Gallus gallus domesticus ), testosterone may induce negative effects on sperm metabolic rate.…”

Section: Discussionmentioning

confidence: 94%

Ejaculate testosterone levels affect maternal investment in red junglefowl (Gallus gallus gallus)

Lelono

Riedstra

Groothuis

2019

Sci Rep

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Substantial concentrations of testosterone are not only present in a male’s circulation, but also in its ejaculate. Surprisingly, the regulation of ejaculate T and its effects on females and their offspring, potentially a cryptic paternal trait, are not known. We found lower circulating and higher ejaculate T concentrations in subordinate red junglefowl ( Gallus gallus gallus ) males compared to dominant males, suggestive of an adaptive trade-off in T allocation to circulation and their ejaculate. Subsequently, we artificially inseminated females with either testosterone enriched (TE) or control ejaculates (CE) in a cross-over design. TE females produced heavier eggs than CE females. Offspring growth and tonic immobility were affected in a sex-specific way by TE. TE sons were heavier with shorter TI duration than CE sons, and TE daughters were lighter than CE daughters but daughters did not differ in TI score. However, the chicks competitiveness was not influenced by the TE nor CE. This indicates a previously unknown function of ejaculate testosterone as well as a new form of interaction between a cryptic paternal trait and a maternal effect that may be widespread in the animal kingdom.

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Section: Discussionmentioning

confidence: 94%

Ejaculate testosterone levels affect maternal investment in red junglefowl (Gallus gallus gallus)

Lelono

Riedstra

Groothuis

2019

Sci Rep

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“…However, results of the present study did not support their findings. Earlier studies also reported that the circulating blood testosterone concentrations are not related to libido ( Schallenberger et al, 1991 ; Sekasiddhi and Buban, 1997 ) and semen quality ( Souza et al, 2011 ) or have only low correlation with mass activity and motility ( Santos et al, 2004 ; Souza et al, 2011 ). Since testosterone concentration varies with many factors like species, breed, individual, age, season, environmental conditions and time, frequent estimation of testosterone in short intervals taken with objective measures of other traits may be necessary to accurately assess relationships of testosterone concentrations with seminal characteristics.…”

Section: Discussionmentioning

confidence: 97%

Testicular Cell Indices and Peripheral Blood Testosterone Concentrations in Relation to Age and Semen Quality in Crossbred (Holstein Friesian×Tharparkar) Bulls

Rajak

Kumaresan

Gaurav

et al. 2014

Asian Australas. J. Anim. Sci

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Present study analyzed the changes in peripheral blood testosterone concentrations and testicular cytogram in relation to age and semen quality in crossbred males. Three different age groups of crossbred males viz. bull calves (6 months, n = 5), young bulls (15 months, n = 5) and adult bulls (4 to 6 years, n = 8) were utilized for the study. Testicular fine needle aspiration cytology technique was used to quantify testicular cytology and their indices. Peripheral blood testosterone concentrations were measured using enzyme-linked immunosorbent assay method. Semen samples collected from adult bulls were microscopically evaluated for quality parameters. Mean peripheral blood testosterone concentrations in bull calves, young bulls and adult bulls were 2.28±0.09 ng/mL, 1.42±0.22 ng/mL and 5.66±1.08 ng/mL respectively, and that in adult bulls were significantly different (p<0.01) from young bulls and bull calves. There was no significant difference between the proportion of different testicular cells in bull calves and young bulls. Between young and adult bulls, significant differences (p<0.01) were observed in the proportion of spermatocytes, spermatozoa, and sperm: Sertoli cell ratio. The proportions of Sertoli cells showed a significant difference (p<0.01) between the three age groups. The number of primary spermatocytes had a positive correlation with peripheral blood testosterone concentrations in bull calves (r = 0.719, p<0.01). Number of Sertoli cells per 100 germ cells was negatively correlated with blood testosterone concentration in young bulls (r = −0.713, p<0.01). Among different semen parameters in adult bulls, ejaculate volume (r = 0.790, p<0.05) had positive relationship, and sperm motility had significant negative correlation (r = −0.711, p<0.05) with testosterone concentrations. The number of Sertoli cells and Sertoli cell index had a positive correlation with various semen quality parameters (p<0.001). Results of the present study conclude that number of Sertoli cells and Sertoli cell index are good indicators of semen quality, but peripheral blood testosterone concentrations may not have a direct relationship with various seminal attributes in crossbred bulls.

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“…Testes productivity in producing spermatozoa is dependent upon the numbers of spermatogonia cells performed mitosis and meiosis cleavages [5], and testes ability to produce testosterone [7]. The higher testosterone concentration the better production of substrates are responsible for regulating and performing spermatogenesis activity [8,9,10]. Some studies have analyzed the relationship between serum testosterone concentration, sperms quality and fertility of bulls, and some of them reported a strong correlation [11,12,13], but other could not find any association [10].…”

Section: Introductionmentioning

confidence: 99%

Correlation Between Testosterone Concentrations with Scrotal Circumference, and Semen Characteristics in Aceh Bulls

et al. 2020

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This study was conducted to examine testosterone concentrations its relationship with the scrotal circumference and physical characteristics of semen in aceh bulls. Semen samples were collected weekly from jugular vein of three aceh bulls aged 4-5 years old for 10 weeks. Testosterone concentration was measured by enzyme-linked immunosorbent assay (ELISA) method. Semens were collected by using artificial vagina and evaluated for physical characteristics namely ejaculatory volume, pH, and sperm motility, concentration, and abnormalities. Data were analyzed using correlation-regresion test. Testosterone concentrations showed a positive correlation with scrotal circumference (r = 0.799), number of sperm (r = 0.703), sperm motility (r = 0.857) and sperm abnormalities (r = -0,877). No correlation, however, was found between testosterone concentrations with semen volume (r = 0.038) and pH (r = 0.418). It can be concluded that testosterone concentrations correlated positively with scrotal circumference, numbers of sperm, sperm of motility and sperm of abnormality.

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Correlation between sperm characteristics and testosterone in bovine seminal plasma by direct radioimmunoassay

Cited by 13 publications

References 12 publications

Ejaculate testosterone levels affect maternal investment in red junglefowl (Gallus gallus gallus)

Ejaculate testosterone levels affect maternal investment in red junglefowl (Gallus gallus gallus)

Testicular Cell Indices and Peripheral Blood Testosterone Concentrations in Relation to Age and Semen Quality in Crossbred (Holstein Friesian×Tharparkar) Bulls

Correlation Between Testosterone Concentrations with Scrotal Circumference, and Semen Characteristics in Aceh Bulls

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