Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.theriogenology.2019.07.021 http://hdl.handle.net/11449/189442 |
Resumo: | The objective of this study was to evaluate the effects of long-term supplementation with rumen-protected fatty acids (FA) on growth and reproductive parameters of young Nellore bulls in a grazing regime. Forty-eight young bulls were distributed into two groups: FA (supplemented with rumen-protected polyunsaturated FA); and control (control fat-free supplement). The animals were supplemented from 14.3 to 24.6 months of age and growth and reproductive parameters were evaluated at 28-day intervals. The semen was cryopreserved in the last collection and fresh and post-thaw semen samples were evaluated. Feeding FA did not affect (P > 0.05) growth, reproductive parameters (scrotal circumference, sperm concentration per mL of ejaculate, percentage of sperm defects, sperm quality and fertility in vitro), or testicular ultrasonographic characteristics. However, thawed semen from bulls fed FA exhibited better quality (P < 0.05) than control semen for the following parameters evaluated by computer-assisted sperm analysis: average path velocity [μm/s: 90.48 vs. 79.66 post-thaw and 74.81 vs. 72.80 post-rapid thermoresistance test (TRT)], straight-line velocity (μm/s: 72.37 vs. 65.20 post-thaw and 64.96 vs. 63.25 post-TRT), and curvilinear velocity (μm/s: 148.44 vs. 131.31 post-thaw and 115.68 vs. 113.35 post-TRT). In addition, feeding FA increased peripheral concentrations of testosterone, leptin, total cholesterol and high-density lipoprotein. In conclusion, the increase in testosterone concentrations in bulls fed FA was not related to variations in growth parameters and sexual maturity. In addition, post-thawing sperm velocities were enhanced by diet, however, such increases were not related to better in vitro embryo production rates. |
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Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acidsEmbryoMale sexual functionNutritionRuminantSemenThe objective of this study was to evaluate the effects of long-term supplementation with rumen-protected fatty acids (FA) on growth and reproductive parameters of young Nellore bulls in a grazing regime. Forty-eight young bulls were distributed into two groups: FA (supplemented with rumen-protected polyunsaturated FA); and control (control fat-free supplement). The animals were supplemented from 14.3 to 24.6 months of age and growth and reproductive parameters were evaluated at 28-day intervals. The semen was cryopreserved in the last collection and fresh and post-thaw semen samples were evaluated. Feeding FA did not affect (P > 0.05) growth, reproductive parameters (scrotal circumference, sperm concentration per mL of ejaculate, percentage of sperm defects, sperm quality and fertility in vitro), or testicular ultrasonographic characteristics. However, thawed semen from bulls fed FA exhibited better quality (P < 0.05) than control semen for the following parameters evaluated by computer-assisted sperm analysis: average path velocity [μm/s: 90.48 vs. 79.66 post-thaw and 74.81 vs. 72.80 post-rapid thermoresistance test (TRT)], straight-line velocity (μm/s: 72.37 vs. 65.20 post-thaw and 64.96 vs. 63.25 post-TRT), and curvilinear velocity (μm/s: 148.44 vs. 131.31 post-thaw and 115.68 vs. 113.35 post-TRT). In addition, feeding FA increased peripheral concentrations of testosterone, leptin, total cholesterol and high-density lipoprotein. In conclusion, the increase in testosterone concentrations in bulls fed FA was not related to variations in growth parameters and sexual maturity. In addition, post-thawing sperm velocities were enhanced by diet, however, such increases were not related to better in vitro embryo production rates.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)São Paulo State University (UNESP) School of Agrarian and Veterinary Sciences Graduate Program in Veterinary Medicine Campus Jaboticabal, São PauloInstitute of Animal Science (IZ) São Paulo Agribusiness Technology Agency (APTA), Sertãozinho, São PauloSão Paulo State University (UNESP) School of Veterinary Medicine and Animal Science Department of Animal Reproduction and Veterinary Radiology, Campus Botucatu, São PauloSão Paulo State University (UNESP) School of Veterinary Medicine Laboratory of Reproductive Physiology Campus Araçatuba, São PauloSão Paulo State University (UNESP) School of Agrarian and Veterinary Sciences Graduate Program in Veterinary Medicine Campus Jaboticabal, São PauloSão Paulo State University (UNESP) School of Veterinary Medicine and Animal Science Department of Animal Reproduction and Veterinary Radiology, Campus Botucatu, São PauloSão Paulo State University (UNESP) School of Veterinary Medicine Laboratory of Reproductive Physiology Campus Araçatuba, São PauloFAPESP: 2013/13696-3FAPESP: 2015/06733-5CNPq: 307416/2015-1CAPES: BEX 11820/2013-06Universidade Estadual Paulista (Unesp)São Paulo Agribusiness Technology Agency (APTA)Rossi, Guilherme Fazan [UNESP]Ribeiro Dias, Erika AlineBastos, Natália Marins [UNESP]Vrisman, Dayane Priscila [UNESP]Rodrigues, Naiara Nantes [UNESP]Vantini, Roberta [UNESP]Garcia, Joaquim Mansano [UNESP]Simili, Flávia FernandaRibeiro, Enilson GeraldoCanesin, Roberta CarrilhoZerlotti Mercadante, Maria EugêniaFreitas-Dell'Aqua, Camila P. [UNESP]Monteiro, Fabio Morato [UNESP]Mingoti, Gisele Zoccal [UNESP]2019-10-06T16:40:53Z2019-10-06T16:40:53Z2019-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article16-27http://dx.doi.org/10.1016/j.theriogenology.2019.07.021Theriogenology, v. 139, p. 16-27.0093-691Xhttp://hdl.handle.net/11449/18944210.1016/j.theriogenology.2019.07.0212-s2.0-85069661274Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTheriogenologyinfo:eu-repo/semantics/openAccess2024-09-09T14:05:43Zoai:repositorio.unesp.br:11449/189442Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T14:05:43Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids |
title |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids |
spellingShingle |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids Rossi, Guilherme Fazan [UNESP] Embryo Male sexual function Nutrition Ruminant Semen |
title_short |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids |
title_full |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids |
title_fullStr |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids |
title_full_unstemmed |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids |
title_sort |
Sexual maturity and fertility-related measures in young Nellore bulls receiving long-term dietary supplementation with rumen-protected polyunsaturated fatty acids |
author |
Rossi, Guilherme Fazan [UNESP] |
author_facet |
Rossi, Guilherme Fazan [UNESP] Ribeiro Dias, Erika Aline Bastos, Natália Marins [UNESP] Vrisman, Dayane Priscila [UNESP] Rodrigues, Naiara Nantes [UNESP] Vantini, Roberta [UNESP] Garcia, Joaquim Mansano [UNESP] Simili, Flávia Fernanda Ribeiro, Enilson Geraldo Canesin, Roberta Carrilho Zerlotti Mercadante, Maria Eugênia Freitas-Dell'Aqua, Camila P. [UNESP] Monteiro, Fabio Morato [UNESP] Mingoti, Gisele Zoccal [UNESP] |
author_role |
author |
author2 |
Ribeiro Dias, Erika Aline Bastos, Natália Marins [UNESP] Vrisman, Dayane Priscila [UNESP] Rodrigues, Naiara Nantes [UNESP] Vantini, Roberta [UNESP] Garcia, Joaquim Mansano [UNESP] Simili, Flávia Fernanda Ribeiro, Enilson Geraldo Canesin, Roberta Carrilho Zerlotti Mercadante, Maria Eugênia Freitas-Dell'Aqua, Camila P. [UNESP] Monteiro, Fabio Morato [UNESP] Mingoti, Gisele Zoccal [UNESP] |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) São Paulo Agribusiness Technology Agency (APTA) |
dc.contributor.author.fl_str_mv |
Rossi, Guilherme Fazan [UNESP] Ribeiro Dias, Erika Aline Bastos, Natália Marins [UNESP] Vrisman, Dayane Priscila [UNESP] Rodrigues, Naiara Nantes [UNESP] Vantini, Roberta [UNESP] Garcia, Joaquim Mansano [UNESP] Simili, Flávia Fernanda Ribeiro, Enilson Geraldo Canesin, Roberta Carrilho Zerlotti Mercadante, Maria Eugênia Freitas-Dell'Aqua, Camila P. [UNESP] Monteiro, Fabio Morato [UNESP] Mingoti, Gisele Zoccal [UNESP] |
dc.subject.por.fl_str_mv |
Embryo Male sexual function Nutrition Ruminant Semen |
topic |
Embryo Male sexual function Nutrition Ruminant Semen |
description |
The objective of this study was to evaluate the effects of long-term supplementation with rumen-protected fatty acids (FA) on growth and reproductive parameters of young Nellore bulls in a grazing regime. Forty-eight young bulls were distributed into two groups: FA (supplemented with rumen-protected polyunsaturated FA); and control (control fat-free supplement). The animals were supplemented from 14.3 to 24.6 months of age and growth and reproductive parameters were evaluated at 28-day intervals. The semen was cryopreserved in the last collection and fresh and post-thaw semen samples were evaluated. Feeding FA did not affect (P > 0.05) growth, reproductive parameters (scrotal circumference, sperm concentration per mL of ejaculate, percentage of sperm defects, sperm quality and fertility in vitro), or testicular ultrasonographic characteristics. However, thawed semen from bulls fed FA exhibited better quality (P < 0.05) than control semen for the following parameters evaluated by computer-assisted sperm analysis: average path velocity [μm/s: 90.48 vs. 79.66 post-thaw and 74.81 vs. 72.80 post-rapid thermoresistance test (TRT)], straight-line velocity (μm/s: 72.37 vs. 65.20 post-thaw and 64.96 vs. 63.25 post-TRT), and curvilinear velocity (μm/s: 148.44 vs. 131.31 post-thaw and 115.68 vs. 113.35 post-TRT). In addition, feeding FA increased peripheral concentrations of testosterone, leptin, total cholesterol and high-density lipoprotein. In conclusion, the increase in testosterone concentrations in bulls fed FA was not related to variations in growth parameters and sexual maturity. In addition, post-thawing sperm velocities were enhanced by diet, however, such increases were not related to better in vitro embryo production rates. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:40:53Z 2019-10-06T16:40:53Z 2019-11-01 |
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://dx.doi.org/10.1016/j.theriogenology.2019.07.021 Theriogenology, v. 139, p. 16-27. 0093-691X http://hdl.handle.net/11449/189442 10.1016/j.theriogenology.2019.07.021 2-s2.0-85069661274 |
url |
http://dx.doi.org/10.1016/j.theriogenology.2019.07.021 http://hdl.handle.net/11449/189442 |
identifier_str_mv |
Theriogenology, v. 139, p. 16-27. 0093-691X 10.1016/j.theriogenology.2019.07.021 2-s2.0-85069661274 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Theriogenology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
16-27 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
repositoriounesp@unesp.br |
_version_ |
1810021340532441088 |