Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)

Dromedary bulls exhibit particularly suboptimal semen quality. In this species, standard breeding soundness evaluation (BSE) often cannot catch the subtle difference between fertile and subfertile males. Therefore, the aim was to explore novel diagnostic tools to predict fertility and recognize subf...

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Autores: Méar, L.O., Gnemmi, G., Echegaray, A., Skidmore, J.A., Malo, C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:145253
Acceso en línea:http://zaguan.unizar.es/record/145253
Access Level:acceso abierto
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spelling Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)Méar, L.O.Gnemmi, G.Echegaray, A.Skidmore, J.A.Malo, C.Dromedary bulls exhibit particularly suboptimal semen quality. In this species, standard breeding soundness evaluation (BSE) often cannot catch the subtle difference between fertile and subfertile males. Therefore, the aim was to explore novel diagnostic tools to predict fertility and recognize subfertility in dromedary bulls. We explored the relationship between semen quality, fertility, echotexture parameters, accessory glands volume and total testosterone. Two sets of experiments were performed: in vitro (semen group) and in vivo (natural mating group). Each group was assessed by standard BSE: clinical examination, testis volume, ultrasound analysis of testicular parenchyma (TP) and epididymis. For the first time, images of epididymal head were obtained. Testis volume was not correlated to any parameters studied. Ultrasound TP showed especially low sensitivity (20 % in vitro and 14 % in vivo). The standard BSE was found unsuccessful in assessing subfertility. Therefore, animals were then submitted to advanced BSE: digital image analysis of TP, assessment of accessory glands (prostate (P) and bulbourethral (BB) glands) and serum total testosterone concentration. Upon analysis, significant correlations were found among some echotexture parameters (white pixels, mean grey levels, area and density of hypoechogenic areas) and percentage of viability, head defects, mitochondria potential and fertility. Only white pixels showed strong sensitivity (86 %) and specificity (100 %). BB volume correlated with ejaculate volume. Total testosterone concentration did not correlate with any parameters studied. In conclusion, advanced BSE (digital ultrasound image analysis and accessory glands volume) proved to be a useful tool for predicting semen quality and detecting subfertility in dromedary camels.2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/145253reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1452532026-05-29T13:59:51Z
dc.title.none.fl_str_mv Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
title Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
spellingShingle Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
Méar, L.O.
title_short Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
title_full Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
title_fullStr Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
title_full_unstemmed Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
title_sort Exploring novel approaches for fertility and subfertility prediction in dromedary male camels (Camelus dromedarius)
dc.creator.none.fl_str_mv Méar, L.O.
Gnemmi, G.
Echegaray, A.
Skidmore, J.A.
Malo, C.
author Méar, L.O.
author_facet Méar, L.O.
Gnemmi, G.
Echegaray, A.
Skidmore, J.A.
Malo, C.
author_role author
author2 Gnemmi, G.
Echegaray, A.
Skidmore, J.A.
Malo, C.
author2_role author
author
author
author
description Dromedary bulls exhibit particularly suboptimal semen quality. In this species, standard breeding soundness evaluation (BSE) often cannot catch the subtle difference between fertile and subfertile males. Therefore, the aim was to explore novel diagnostic tools to predict fertility and recognize subfertility in dromedary bulls. We explored the relationship between semen quality, fertility, echotexture parameters, accessory glands volume and total testosterone. Two sets of experiments were performed: in vitro (semen group) and in vivo (natural mating group). Each group was assessed by standard BSE: clinical examination, testis volume, ultrasound analysis of testicular parenchyma (TP) and epididymis. For the first time, images of epididymal head were obtained. Testis volume was not correlated to any parameters studied. Ultrasound TP showed especially low sensitivity (20 % in vitro and 14 % in vivo). The standard BSE was found unsuccessful in assessing subfertility. Therefore, animals were then submitted to advanced BSE: digital image analysis of TP, assessment of accessory glands (prostate (P) and bulbourethral (BB) glands) and serum total testosterone concentration. Upon analysis, significant correlations were found among some echotexture parameters (white pixels, mean grey levels, area and density of hypoechogenic areas) and percentage of viability, head defects, mitochondria potential and fertility. Only white pixels showed strong sensitivity (86 %) and specificity (100 %). BB volume correlated with ejaculate volume. Total testosterone concentration did not correlate with any parameters studied. In conclusion, advanced BSE (digital ultrasound image analysis and accessory glands volume) proved to be a useful tool for predicting semen quality and detecting subfertility in dromedary camels.
publishDate 2024
dc.date.none.fl_str_mv 2024
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dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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eu_rights_str_mv openAccess
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dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
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