Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig.
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/28802 https://doi.org/Paixão, G, Esteves, A, Carolino, N, dos Anjos Pires, M, Payan‐Carreira, R. Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. Reprod Dom Anim 2020; 00: 1– 8. https://doi.org/10.1111/rda.13827 https://doi.org/10.1111/rda.13827 |
Resumo: | Bísaro pig (BP), like many other local breeds reared in extensive non-industrial systems, faces many constraints to comply with the EU welfare regulation, particularly regarding the restrictions to surgical castration. In order to adapt an immunocastration protocol to overtake this issue, a puberty timeline is needed. Using gonadal morphometry data from 91 young male BP, this study intended to characterize testicular development, describing the prominent cell types and structures, to ultimately assess the age at puberty in male BP through a mixed prediction model. As expected, the relations between several macro and microscopic parameters and their relation with age were as described within the literature. Post-pubertal animals have larger and heavier gonads, lower Sertoli cell density/tubule, higher Leydig cell density and larger seminiferous tubules. Meiosis was firstly seen in 44-day-old animals, elongated spermatids in 70-day-old animals. Complete spermatogenesis was firstly identified in a 90-day-old animal. Spermatozoa were present in the epididymis of 23 animals, aged from 70 to 240 days old, and in the vas deferens of 14 animals (105 to 240 days old). The prediction model inferred that male Bísaro pigs reach puberty between 14 and 17 weeks (3 and 4 months old) and become sexually capable from 15 to 19 weeks (3.5 and 4.4 months old). These parameters confirm the sexual precocity of this breed. |
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Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig.boarepididymispubertyspermatogenesistestisBísaro pig (BP), like many other local breeds reared in extensive non-industrial systems, faces many constraints to comply with the EU welfare regulation, particularly regarding the restrictions to surgical castration. In order to adapt an immunocastration protocol to overtake this issue, a puberty timeline is needed. Using gonadal morphometry data from 91 young male BP, this study intended to characterize testicular development, describing the prominent cell types and structures, to ultimately assess the age at puberty in male BP through a mixed prediction model. As expected, the relations between several macro and microscopic parameters and their relation with age were as described within the literature. Post-pubertal animals have larger and heavier gonads, lower Sertoli cell density/tubule, higher Leydig cell density and larger seminiferous tubules. Meiosis was firstly seen in 44-day-old animals, elongated spermatids in 70-day-old animals. Complete spermatogenesis was firstly identified in a 90-day-old animal. Spermatozoa were present in the epididymis of 23 animals, aged from 70 to 240 days old, and in the vas deferens of 14 animals (105 to 240 days old). The prediction model inferred that male Bísaro pigs reach puberty between 14 and 17 weeks (3 and 4 months old) and become sexually capable from 15 to 19 weeks (3.5 and 4.4 months old). These parameters confirm the sexual precocity of this breed.2021-01-25T12:18:16Z2021-01-252020-09-23T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/28802https://doi.org/Paixão, G, Esteves, A, Carolino, N, dos Anjos Pires, M, Payan‐Carreira, R. Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. Reprod Dom Anim 2020; 00: 1– 8. https://doi.org/10.1111/rda.13827http://hdl.handle.net/10174/28802https://doi.org/10.1111/rda.13827porhttps://onlinelibrary.wiley.com/doi/epdf/10.1111/rda.13827dvmndndndPaixão, GustavoEsteves, AlexandraCarolino, Nunoinfo:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-08T04:40:20ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. |
title |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. |
spellingShingle |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. Paixão, Gustavo boar epididymis puberty spermatogenesis testis |
title_short |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. |
title_full |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. |
title_fullStr |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. |
title_full_unstemmed |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. |
title_sort |
Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. |
author |
Paixão, Gustavo |
author_facet |
Paixão, Gustavo Esteves, Alexandra Carolino, Nuno |
author_role |
author |
author2 |
Esteves, Alexandra Carolino, Nuno |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Paixão, Gustavo Esteves, Alexandra Carolino, Nuno |
dc.subject.por.fl_str_mv |
boar epididymis puberty spermatogenesis testis |
topic |
boar epididymis puberty spermatogenesis testis |
description |
Bísaro pig (BP), like many other local breeds reared in extensive non-industrial systems, faces many constraints to comply with the EU welfare regulation, particularly regarding the restrictions to surgical castration. In order to adapt an immunocastration protocol to overtake this issue, a puberty timeline is needed. Using gonadal morphometry data from 91 young male BP, this study intended to characterize testicular development, describing the prominent cell types and structures, to ultimately assess the age at puberty in male BP through a mixed prediction model. As expected, the relations between several macro and microscopic parameters and their relation with age were as described within the literature. Post-pubertal animals have larger and heavier gonads, lower Sertoli cell density/tubule, higher Leydig cell density and larger seminiferous tubules. Meiosis was firstly seen in 44-day-old animals, elongated spermatids in 70-day-old animals. Complete spermatogenesis was firstly identified in a 90-day-old animal. Spermatozoa were present in the epididymis of 23 animals, aged from 70 to 240 days old, and in the vas deferens of 14 animals (105 to 240 days old). The prediction model inferred that male Bísaro pigs reach puberty between 14 and 17 weeks (3 and 4 months old) and become sexually capable from 15 to 19 weeks (3.5 and 4.4 months old). These parameters confirm the sexual precocity of this breed. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-09-23T00:00:00Z 2021-01-25T12:18:16Z 2021-01-25 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/28802 https://doi.org/Paixão, G, Esteves, A, Carolino, N, dos Anjos Pires, M, Payan‐Carreira, R. Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. Reprod Dom Anim 2020; 00: 1– 8. https://doi.org/10.1111/rda.13827 http://hdl.handle.net/10174/28802 https://doi.org/10.1111/rda.13827 |
url |
http://hdl.handle.net/10174/28802 https://doi.org/Paixão, G, Esteves, A, Carolino, N, dos Anjos Pires, M, Payan‐Carreira, R. Evaluation of gonadal macroscopic and microscopic morphometry reveals precocious puberty in Bísaro pig. Reprod Dom Anim 2020; 00: 1– 8. https://doi.org/10.1111/rda.13827 https://doi.org/10.1111/rda.13827 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/rda.13827 dvm nd nd nd |
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info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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