Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/38329 |
Resumo: | This study examined the effect of administering an additional dose of prostaglandin F2 alpha (PGF2?), in a fixed-time artificial insemination protocol (FTAI), on the fertility of female Nellore cattle. Two experiments were carried out: the first (Experiment I) took place in the state of Tocantins and the second (Experiment II) in the state of Pará, Brazil. In Experiment I (E1), 80 cows were used in three treatments (T1, T2 and T3) in which all received the same FTAI protocol. In T1 (n = 29), the cows received 12.5 mg of Dinoprost on day 9; in T2 (n = 28), they received the additional dose on day 10; and in T3 (n = 23; control group), the animals did not receive the additional PGF2? dose. Experiment II consisted of 147 bovine females distributed into two treatment groups, namely, T1 - 72 animals receiving the same protocol as T1 of E1; and T2 - 75 animals receiving the same protocol as T3 of E1. Statistical analysis was performed using SAS software, applying the PROC NPARWAY procedure for E1, and means were compared by the Wilcoxon test at the 5% significance level. In Experiment II, the data were subjected to analysis of variance by PROC GLIMMIX and means were compared by the T test at the 5% significance level. The following pregnancy rates were obtained in Experiment I: T1 - 62.06% (18/29); T2 - 57.14% (16/28); and T3 - 52.17% (12/23), with no significant difference observed between treatments. In Experiment II, pregnancy rate in T1 was 66.67% (48/72), whereas in T2 it was 41.33% (31/75), with a significant difference detected (P < 0.05). An additional dose of PGF2? provides an increase in pregnancy rate in Nellore females. |
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Semina. Ciências Agrárias (Online) |
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Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAIEfeito de dose adicional de pgf2? sobre a taxa de gestação de fêmeas bovinas Nelore submetidas a IATFBovineFTAIPGF2alfaPregnancy rate.BovinoIATFPGF2alfaTaxa de prenhez.This study examined the effect of administering an additional dose of prostaglandin F2 alpha (PGF2?), in a fixed-time artificial insemination protocol (FTAI), on the fertility of female Nellore cattle. Two experiments were carried out: the first (Experiment I) took place in the state of Tocantins and the second (Experiment II) in the state of Pará, Brazil. In Experiment I (E1), 80 cows were used in three treatments (T1, T2 and T3) in which all received the same FTAI protocol. In T1 (n = 29), the cows received 12.5 mg of Dinoprost on day 9; in T2 (n = 28), they received the additional dose on day 10; and in T3 (n = 23; control group), the animals did not receive the additional PGF2? dose. Experiment II consisted of 147 bovine females distributed into two treatment groups, namely, T1 - 72 animals receiving the same protocol as T1 of E1; and T2 - 75 animals receiving the same protocol as T3 of E1. Statistical analysis was performed using SAS software, applying the PROC NPARWAY procedure for E1, and means were compared by the Wilcoxon test at the 5% significance level. In Experiment II, the data were subjected to analysis of variance by PROC GLIMMIX and means were compared by the T test at the 5% significance level. The following pregnancy rates were obtained in Experiment I: T1 - 62.06% (18/29); T2 - 57.14% (16/28); and T3 - 52.17% (12/23), with no significant difference observed between treatments. In Experiment II, pregnancy rate in T1 was 66.67% (48/72), whereas in T2 it was 41.33% (31/75), with a significant difference detected (P < 0.05). An additional dose of PGF2? provides an increase in pregnancy rate in Nellore females.Objetivou-se avaliar o efeito da administração de uma dose adicional de prostaglandina F2 alfa (PGF2) em protocolo de inseminação artificial em tempo fixo (IATF) sobre a fertilidade de fêmeas bovinas da raça Nelore. Foram realizados dois experimentos, sendo um (E1) no estado do Tocantins e o segundo (E2) no estado do Pará. No experimento 1 (E1) foram utilizadas 80 fêmeas bovinas distribuídas em três tratamentos (T1, T2 e T3), todos animais receberam o mesmo protocolo de IATF, diferindo no T1 (n=29), que recebeu 12,5 mg de Dinoprost no dia 9, T2 (n=28) recebeu a dose adicional no dia 10 e o T3 (n=23) - Grupo controle, que não recebeu a dose adicional de PGF2. O experimento 2 (E2) constituído por 147 fêmeas bovinas distribuídas em dois tratamentos. T1: com 72 animais, recebendo mesmo protocolo do T1 do E1. T2: constituído por 75 animais, com protocolo idêntico ao T3 do E1. A análise estatistica foi realizada no programa SAS, sendo no E1 utilizando-se o PROC NPARWAY e as médias comparadas pelo teste de Wilcoxon com nível de significância de 5%. No E2 os dados foram submetidos à análise de variancia pelo PROC GLIMMIX e as médias comparadas pelo teste T com nível de significância de 5%. No experimento 1 a taxa de prenhez no T1 foi de 62,06% (18/29), T2 de 57,14% (16/28) e T3 de 52,17% (12/23), não sendo observada diferença significativa entre os tratamentos. No experimento 2 a taxa de prenhez do T1 foi de 66,67% (48/72), enquanto T2 foi de 41,33% (31/75), verificando-se diferença significativa (P < 0,05). A dose adicional de PGF2 promoveu incremento na taxa de prenhez de fêmeas Nelore.UEL2020-09-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionartigo de pesquisa cientificaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3832910.5433/1679-0359.2020v41n6p2669Semina: Ciências Agrárias; Vol. 41 No. 6 (2020); 2669-2676Semina: Ciências Agrárias; v. 41 n. 6 (2020); 2669-26761679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/38329/28068Copyright (c) 2020 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessFerreira, Jorge LuísRodrigues, Matheus Henrique DiasSantos, Shammara NoletoOliveira, Rodolfo Olinto Rotoli Garcia deRodrigues, Vanessa de SousaBeserra, Dourival Alex AraújoGarcia, José Américo Soares2022-10-06T17:04:11Zoai:ojs.pkp.sfu.ca:article/38329Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-06T17:04:11Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI Efeito de dose adicional de pgf2? sobre a taxa de gestação de fêmeas bovinas Nelore submetidas a IATF |
title |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI |
spellingShingle |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI Ferreira, Jorge Luís Bovine FTAI PGF2alfa Pregnancy rate. Bovino IATF PGF2alfa Taxa de prenhez. |
title_short |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI |
title_full |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI |
title_fullStr |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI |
title_full_unstemmed |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI |
title_sort |
Effect of additional PGF2? dose on pregnancy rate in Nellore females subjected to FTAI |
author |
Ferreira, Jorge Luís |
author_facet |
Ferreira, Jorge Luís Rodrigues, Matheus Henrique Dias Santos, Shammara Noleto Oliveira, Rodolfo Olinto Rotoli Garcia de Rodrigues, Vanessa de Sousa Beserra, Dourival Alex Araújo Garcia, José Américo Soares |
author_role |
author |
author2 |
Rodrigues, Matheus Henrique Dias Santos, Shammara Noleto Oliveira, Rodolfo Olinto Rotoli Garcia de Rodrigues, Vanessa de Sousa Beserra, Dourival Alex Araújo Garcia, José Américo Soares |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Ferreira, Jorge Luís Rodrigues, Matheus Henrique Dias Santos, Shammara Noleto Oliveira, Rodolfo Olinto Rotoli Garcia de Rodrigues, Vanessa de Sousa Beserra, Dourival Alex Araújo Garcia, José Américo Soares |
dc.subject.por.fl_str_mv |
Bovine FTAI PGF2alfa Pregnancy rate. Bovino IATF PGF2alfa Taxa de prenhez. |
topic |
Bovine FTAI PGF2alfa Pregnancy rate. Bovino IATF PGF2alfa Taxa de prenhez. |
description |
This study examined the effect of administering an additional dose of prostaglandin F2 alpha (PGF2?), in a fixed-time artificial insemination protocol (FTAI), on the fertility of female Nellore cattle. Two experiments were carried out: the first (Experiment I) took place in the state of Tocantins and the second (Experiment II) in the state of Pará, Brazil. In Experiment I (E1), 80 cows were used in three treatments (T1, T2 and T3) in which all received the same FTAI protocol. In T1 (n = 29), the cows received 12.5 mg of Dinoprost on day 9; in T2 (n = 28), they received the additional dose on day 10; and in T3 (n = 23; control group), the animals did not receive the additional PGF2? dose. Experiment II consisted of 147 bovine females distributed into two treatment groups, namely, T1 - 72 animals receiving the same protocol as T1 of E1; and T2 - 75 animals receiving the same protocol as T3 of E1. Statistical analysis was performed using SAS software, applying the PROC NPARWAY procedure for E1, and means were compared by the Wilcoxon test at the 5% significance level. In Experiment II, the data were subjected to analysis of variance by PROC GLIMMIX and means were compared by the T test at the 5% significance level. The following pregnancy rates were obtained in Experiment I: T1 - 62.06% (18/29); T2 - 57.14% (16/28); and T3 - 52.17% (12/23), with no significant difference observed between treatments. In Experiment II, pregnancy rate in T1 was 66.67% (48/72), whereas in T2 it was 41.33% (31/75), with a significant difference detected (P < 0.05). An additional dose of PGF2? provides an increase in pregnancy rate in Nellore females. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-09-19 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artigo de pesquisa cientifica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/38329 10.5433/1679-0359.2020v41n6p2669 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/38329 |
identifier_str_mv |
10.5433/1679-0359.2020v41n6p2669 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/38329/28068 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 41 No. 6 (2020); 2669-2676 Semina: Ciências Agrárias; v. 41 n. 6 (2020); 2669-2676 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306082281062400 |