Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço

Detalhes bibliográficos
Autor(a) principal: Moura, Guilherme Silva
Data de Publicação: 2008
Tipo de documento: Dissertação
Idioma: por
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://locus.ufv.br/handle/123456789/5596
Resumo: The experiment was done with the following objectives: a) to evaluate the effect of GnRH administered at different times of the reproductive management on the pregnancy rate and serum P4 concentration; and b) to evaluate the effect of gonadotropins releasing hormone (GnRH) given twelve days after FTAI on serum levels of progesterone and above the rate of pregnancy. For the first objective 82 crossbred cows (Bos taurus indicus x Bos taurus Taurus) were allocated into three treatments: TControl (n = 28): the animals were observed for estrus detection and were inseminated after 8 to 12 hours; TGnRH0 (n = 27): similar to TControl plus the administration of 25 μg of GnRH at the AI time; and TGnRH12 (n = 27): similar to TControl plus the administration of 25 μg of GnRH at the AI time and also 12 days after AI. The pregnancy diagnostic was done on day 35 after the AI, by ultrasound scans through trans-rectal ultrasound. The pregnancy rate for TControl cows was 57.15% (16/28) for the first service, and for TGnRH0 and TGnRH12 cows, 63.00% (17/27) in each treatment. The protocol used did not affect the pregnancy rate of crossbred cows (P > 0.05). Also, there was no difference between the serum P4 concentrations between treatments, (P > 0.05). In conclusion, the administration of GnRH analogue, at the time of AI or 12 days after AI, did not improve the reproductive performance in crossbred cows. For the second objective 59 beef crossbred cows (Bos taurus indicus x Bos taurus taurus) were allocated into two treatments. TBE (n = 30): the day 0 - insertion of progesterone intravaginal device (Primer®) plus 2 mg of BE (Estrogin®), im; on 8, Remove the Primer® and applied 300 IU of eCG (Novormon ®) and 0.15 mg of PGF2 α (Prolise®), im, on 9, was applied 1 mg BE, im, and was do FTAI 48-56 hours after the withdrawal of PRIMER; and TBEGnRH12 (n = 29): the protocol was similar to TBE, but with administration of 25 μg of GnRH (Gestran Plus®, Lecirelin) twelve days after the FTAI. The pregnancy diagnostic was done on day 35 after the AI, by ultrasound scans through trans-rectal ultrasound. The pregnancy rate for TBE cows was 53.33% (16/30) for the first service, and for TBEGnRH12 cows, 37.93% (11/29). The protocol used did not affect the pregnancy rate of crossbred cows (P> 0.05). Also, there was no difference between the serum P4 concentrations between treatments (P> 0.05). In conclusion, the administration of the analogue of GnRH, lecirelina, at twelve days after the FTAI did not affect the pregnancy rates, neither affect the serum P4 concentration, between treatments, on days zero, five, 12 and 20 after the FTAI.
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spelling Moura, Guilherme Silvahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4234533P7Carvalho, Giovanni Ribeiro dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723068Z6Guimarães, José Domingoshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782270U6Torres, Ciro Alexandre Alveshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787213D4Costa, Eduardo Paulino dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787237D6Amorim, Elenice Andrade Moraes ehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4762376D62015-03-26T13:54:45Z2009-08-122015-03-26T13:54:45Z2008-07-30MOURA, Guilherme Silva. The use of GnRH after conventional insemination and FTAI protocol in crosbreed cattle. 2008. 60 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2008.http://locus.ufv.br/handle/123456789/5596The experiment was done with the following objectives: a) to evaluate the effect of GnRH administered at different times of the reproductive management on the pregnancy rate and serum P4 concentration; and b) to evaluate the effect of gonadotropins releasing hormone (GnRH) given twelve days after FTAI on serum levels of progesterone and above the rate of pregnancy. For the first objective 82 crossbred cows (Bos taurus indicus x Bos taurus Taurus) were allocated into three treatments: TControl (n = 28): the animals were observed for estrus detection and were inseminated after 8 to 12 hours; TGnRH0 (n = 27): similar to TControl plus the administration of 25 μg of GnRH at the AI time; and TGnRH12 (n = 27): similar to TControl plus the administration of 25 μg of GnRH at the AI time and also 12 days after AI. The pregnancy diagnostic was done on day 35 after the AI, by ultrasound scans through trans-rectal ultrasound. The pregnancy rate for TControl cows was 57.15% (16/28) for the first service, and for TGnRH0 and TGnRH12 cows, 63.00% (17/27) in each treatment. The protocol used did not affect the pregnancy rate of crossbred cows (P > 0.05). Also, there was no difference between the serum P4 concentrations between treatments, (P > 0.05). In conclusion, the administration of GnRH analogue, at the time of AI or 12 days after AI, did not improve the reproductive performance in crossbred cows. For the second objective 59 beef crossbred cows (Bos taurus indicus x Bos taurus taurus) were allocated into two treatments. TBE (n = 30): the day 0 - insertion of progesterone intravaginal device (Primer®) plus 2 mg of BE (Estrogin®), im; on 8, Remove the Primer® and applied 300 IU of eCG (Novormon ®) and 0.15 mg of PGF2 α (Prolise®), im, on 9, was applied 1 mg BE, im, and was do FTAI 48-56 hours after the withdrawal of PRIMER; and TBEGnRH12 (n = 29): the protocol was similar to TBE, but with administration of 25 μg of GnRH (Gestran Plus®, Lecirelin) twelve days after the FTAI. The pregnancy diagnostic was done on day 35 after the AI, by ultrasound scans through trans-rectal ultrasound. The pregnancy rate for TBE cows was 53.33% (16/30) for the first service, and for TBEGnRH12 cows, 37.93% (11/29). The protocol used did not affect the pregnancy rate of crossbred cows (P> 0.05). Also, there was no difference between the serum P4 concentrations between treatments (P> 0.05). In conclusion, the administration of the analogue of GnRH, lecirelina, at twelve days after the FTAI did not affect the pregnancy rates, neither affect the serum P4 concentration, between treatments, on days zero, five, 12 and 20 after the FTAI.Este trabalho foi realizado com os seguintes objetivos: a) avaliar o efeito do hormônio liberador de gonadotropina (GnRH), administrado em diferentes momentos do manejo reprodutivo, na taxa de prenhez e concentração sérica de P4 em gado de corte mestiço; e b) avaliar o efeito do hormônio liberador de gonadotropinas (GnRH), administrado 12 dias após IATF, sobre os níveis séricos de progesterona e, principalmente, na taxa de prenhez em vacas de corte mestiças. Para o primeiro objetivo, utilizaram-se 82 fêmeas bovinas mestiças (Bos taurus indicus x Bos taurus taurus), alocadas ao acaso, em três tratamentos: Tcontrole (n = 28): os animais foram observados para detecção de estros e inseminados após 8 a 12 horas; TGnRH0 (n = 27): similar ao Tcontrole, com administração de 25 μg de GnRH (Gestran Plus®, Lecirelina) no momento da IA; e TGnRH0-12 (n = 27): similar ao Tcontrole, com administração de 25 μg de GnRH no momento da IA e no dia 12 após a IA. No dia 35, após IA, foi feito o diagnóstico de gestação por exames ultrassonográficos pela via transretal. Foi observado que 57,14% das vacas (16/28) no Tcontrole e no TGnRH0 e TGnRH12, 62,96% (17/27) ficaram gestantes após o primeiro serviço. Não foi observada diferença entre os animais dos tratamentos (P > 0,05). Também não se observou diferença entre as concentrações de P4 séricas entre os animais dos tratamentos. Concluiu-se que a administração de análogo de GnRH no momento da IA ou 12 dias após a IA não melhorou o desempenho reprodutivo em vacas mestiças, nem a sintese de P4 pelo corpo lúteo. Para o segundo objetivo, foram utilizadas 59 fêmeas bovinas mestiças (Bos taurus indicus x Bos taurus taurus), alocadas ao acaso, em dois tratamentos: TBE (n = 30): no dia 0, inseriu-se o dispositivo intravaginal de progesterona (Primer®) mais 2,0 mg de BE (Estrogin®), im; no dia 8, retirou-se o PRIMER e aplicaram-se 300 UI de eCG (Novormon®) e 0,15 mg de PGF2α (Prolise®), im; no dia 9, aplicou-se 1 mg de BE, im, e realizou-se a IATF 48-56 horas após a retirada do PRIMER; e TBEGnRH12 (n = 29): o protocolo foi similar ao do TBE, porém com administração de 25 μg de GnRH (Gestran Plus®, Lecirelina) no dia 12 após a IA. No dia 35, após IA, foi feito o diagnóstico de gestação por exames ultrassonográficos pela via transretal. Neste estudo foi observado que 53,33% das vacas (16/30) no TBE e 37,93% (11/29) no TBEGnRH12 ficaram gestantes após o primeiro serviço. Não foi observada diferença entre os animais dos tratamentos (P > 0,05). Também não se observou diferença entre as concentrações de P4 entre os animais dos tratamentos (P > 0,05). Concluiu-se que a administração do análogo de GnRH, lecirelina, no dia 12, após a IATF, não afetou as taxas de prenhez e nem a concentração de progesterona dos animais dos tratamentos, nos dias 0, 5, 12 e 20 após a IATF.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de ViçosaMestrado em ZootecniaUFVBRGenética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e ForragiculBovino de corteGnRHIATFProgesteronaBeef cattleGnRHFTAIProgesteroneCNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::PRODUCAO ANIMALUso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiçoThe use of GnRH after conventional insemination and FTAI protocol in crosbreed cattleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf259691https://locus.ufv.br//bitstream/123456789/5596/1/texto%20completo.pdf3eb4834dd0179533658dbe83bf931de6MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain106134https://locus.ufv.br//bitstream/123456789/5596/2/texto%20completo.pdf.txt1bf809d246c9d824dc2fb0eccef467caMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3702https://locus.ufv.br//bitstream/123456789/5596/3/texto%20completo.pdf.jpg949b24d0c9edf54ec11ea93493456af5MD53123456789/55962016-04-11 23:11:44.307oai:locus.ufv.br:123456789/5596Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-12T02:11:44LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.por.fl_str_mv Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
dc.title.alternative.eng.fl_str_mv The use of GnRH after conventional insemination and FTAI protocol in crosbreed cattle
title Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
spellingShingle Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
Moura, Guilherme Silva
Bovino de corte
GnRH
IATF
Progesterona
Beef cattle
GnRH
FTAI
Progesterone
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::PRODUCAO ANIMAL
title_short Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
title_full Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
title_fullStr Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
title_full_unstemmed Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
title_sort Uso de análogo de GnRH após inseminação convencional e com protocolo de IATF em gado mestiço
author Moura, Guilherme Silva
author_facet Moura, Guilherme Silva
author_role author
dc.contributor.authorLattes.por.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4234533P7
dc.contributor.author.fl_str_mv Moura, Guilherme Silva
dc.contributor.advisor-co1.fl_str_mv Carvalho, Giovanni Ribeiro de
dc.contributor.advisor-co1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723068Z6
dc.contributor.advisor-co2.fl_str_mv Guimarães, José Domingos
dc.contributor.advisor-co2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782270U6
dc.contributor.advisor1.fl_str_mv Torres, Ciro Alexandre Alves
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787213D4
dc.contributor.referee1.fl_str_mv Costa, Eduardo Paulino da
dc.contributor.referee1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787237D6
dc.contributor.referee2.fl_str_mv Amorim, Elenice Andrade Moraes e
dc.contributor.referee2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4762376D6
contributor_str_mv Carvalho, Giovanni Ribeiro de
Guimarães, José Domingos
Torres, Ciro Alexandre Alves
Costa, Eduardo Paulino da
Amorim, Elenice Andrade Moraes e
dc.subject.por.fl_str_mv Bovino de corte
GnRH
IATF
Progesterona
topic Bovino de corte
GnRH
IATF
Progesterona
Beef cattle
GnRH
FTAI
Progesterone
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::PRODUCAO ANIMAL
dc.subject.eng.fl_str_mv Beef cattle
GnRH
FTAI
Progesterone
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::PRODUCAO ANIMAL
description The experiment was done with the following objectives: a) to evaluate the effect of GnRH administered at different times of the reproductive management on the pregnancy rate and serum P4 concentration; and b) to evaluate the effect of gonadotropins releasing hormone (GnRH) given twelve days after FTAI on serum levels of progesterone and above the rate of pregnancy. For the first objective 82 crossbred cows (Bos taurus indicus x Bos taurus Taurus) were allocated into three treatments: TControl (n = 28): the animals were observed for estrus detection and were inseminated after 8 to 12 hours; TGnRH0 (n = 27): similar to TControl plus the administration of 25 μg of GnRH at the AI time; and TGnRH12 (n = 27): similar to TControl plus the administration of 25 μg of GnRH at the AI time and also 12 days after AI. The pregnancy diagnostic was done on day 35 after the AI, by ultrasound scans through trans-rectal ultrasound. The pregnancy rate for TControl cows was 57.15% (16/28) for the first service, and for TGnRH0 and TGnRH12 cows, 63.00% (17/27) in each treatment. The protocol used did not affect the pregnancy rate of crossbred cows (P > 0.05). Also, there was no difference between the serum P4 concentrations between treatments, (P > 0.05). In conclusion, the administration of GnRH analogue, at the time of AI or 12 days after AI, did not improve the reproductive performance in crossbred cows. For the second objective 59 beef crossbred cows (Bos taurus indicus x Bos taurus taurus) were allocated into two treatments. TBE (n = 30): the day 0 - insertion of progesterone intravaginal device (Primer®) plus 2 mg of BE (Estrogin®), im; on 8, Remove the Primer® and applied 300 IU of eCG (Novormon ®) and 0.15 mg of PGF2 α (Prolise®), im, on 9, was applied 1 mg BE, im, and was do FTAI 48-56 hours after the withdrawal of PRIMER; and TBEGnRH12 (n = 29): the protocol was similar to TBE, but with administration of 25 μg of GnRH (Gestran Plus®, Lecirelin) twelve days after the FTAI. The pregnancy diagnostic was done on day 35 after the AI, by ultrasound scans through trans-rectal ultrasound. The pregnancy rate for TBE cows was 53.33% (16/30) for the first service, and for TBEGnRH12 cows, 37.93% (11/29). The protocol used did not affect the pregnancy rate of crossbred cows (P> 0.05). Also, there was no difference between the serum P4 concentrations between treatments (P> 0.05). In conclusion, the administration of the analogue of GnRH, lecirelina, at twelve days after the FTAI did not affect the pregnancy rates, neither affect the serum P4 concentration, between treatments, on days zero, five, 12 and 20 after the FTAI.
publishDate 2008
dc.date.issued.fl_str_mv 2008-07-30
dc.date.available.fl_str_mv 2009-08-12
2015-03-26T13:54:45Z
dc.date.accessioned.fl_str_mv 2015-03-26T13:54:45Z
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dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
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dc.identifier.citation.fl_str_mv MOURA, Guilherme Silva. The use of GnRH after conventional insemination and FTAI protocol in crosbreed cattle. 2008. 60 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2008.
dc.identifier.uri.fl_str_mv http://locus.ufv.br/handle/123456789/5596
identifier_str_mv MOURA, Guilherme Silva. The use of GnRH after conventional insemination and FTAI protocol in crosbreed cattle. 2008. 60 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2008.
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dc.publisher.program.fl_str_mv Mestrado em Zootecnia
dc.publisher.initials.fl_str_mv UFV
dc.publisher.country.fl_str_mv BR
dc.publisher.department.fl_str_mv Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul
publisher.none.fl_str_mv Universidade Federal de Viçosa
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