Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.

Detalhes bibliográficos
Autor(a) principal: FONSECA, J. F. da
Data de Publicação: 2006
Outros Autores: MAFFILI, V. V., RODRIGUES, M. T., SANTOS, A. D. F., ROVAY, H., PINTO NETO, A., BRANDÃO, F. Z., TORES, C. A. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/532729
Resumo: The objective of this study was to evaluate the effect of hCG administration on plasma progesterone concentrations in lactating Alpine goats during the natural breeding season. After detection of estrus, 124 does were randomly assigned to one of two treatments (T1 and T2). In T1 (n = 60) and T2 (n = 64), the animals received 1 ml of saline solution or 250 IU of hCG i.m., respectively, 5 days after the first detection of estrus and breeding. Plasma progesterone concentration (ng/mL) was determined from blood sampled (T1 = 12 and T2 = 13) on Days 0 (day of estrus), 5, 7, 13, 17, 21, 28 and 45 after breeding. Two control goats with short cycles and two nymphomaniac goats (one per treatment) were detected. Plasma progesterone concentration (mean ± SEM) for T1 and T2 females differed on Days 13, 17 (P < 0.005) and 21 (P < 0.075), being respectively 3.8 ± 0.2 and 6.6 ± 0.7 at Day 13; 3.6 ± 0.1 and 6.5 ± 0.7 at Day 17; 4.3 ± 0.4 and 6.4 ± 0.9 at Day 21. Pregnancy rates on Days 35 and 70 did not differ (P > 0.05) between T1 (78.3%) and T2 (84.4%) does. The hCG administration 5 days after breeding increased plasma progesterone concentrations on Days 13 to 21 but did not increase pregnancy rate.
id EMBR_eb5e70a73514ebd52e0ecc25c843737c
oai_identifier_str oai:www.alice.cnptia.embrapa.br:doc/532729
network_acronym_str EMBR
network_name_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository_id_str 2154
spelling Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.hCGCaprinoFertilidadeHormônioProgesteronaReprodução AnimalThe objective of this study was to evaluate the effect of hCG administration on plasma progesterone concentrations in lactating Alpine goats during the natural breeding season. After detection of estrus, 124 does were randomly assigned to one of two treatments (T1 and T2). In T1 (n = 60) and T2 (n = 64), the animals received 1 ml of saline solution or 250 IU of hCG i.m., respectively, 5 days after the first detection of estrus and breeding. Plasma progesterone concentration (ng/mL) was determined from blood sampled (T1 = 12 and T2 = 13) on Days 0 (day of estrus), 5, 7, 13, 17, 21, 28 and 45 after breeding. Two control goats with short cycles and two nymphomaniac goats (one per treatment) were detected. Plasma progesterone concentration (mean ± SEM) for T1 and T2 females differed on Days 13, 17 (P < 0.005) and 21 (P < 0.075), being respectively 3.8 ± 0.2 and 6.6 ± 0.7 at Day 13; 3.6 ± 0.1 and 6.5 ± 0.7 at Day 17; 4.3 ± 0.4 and 6.4 ± 0.9 at Day 21. Pregnancy rates on Days 35 and 70 did not differ (P > 0.05) between T1 (78.3%) and T2 (84.4%) does. The hCG administration 5 days after breeding increased plasma progesterone concentrations on Days 13 to 21 but did not increase pregnancy rate.JEFERSON FERREIRA DA FONSECA, CNPC; V. V. Maffili, UFV; M. T. Rodrigues, UFV; A. D. F. Santos, UFV; H. Rovay, UFV; F. Z. Brandão, Universidade Federal Fluminense; C. A. C. Torres, UFV.FONSECA, J. F. daMAFFILI, V. V.RODRIGUES, M. T.SANTOS, A. D. F.ROVAY, H.PINTO NETO, A.BRANDÃO, F. Z.TORES, C. A. A.2011-04-10T11:11:11Z2011-04-10T11:11:11Z2007-12-1320062019-09-25T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAnimal Reproduction, v. 3, n. 4, p. 410-414, Oct./Dec. 2006.http://www.alice.cnptia.embrapa.br/alice/handle/doc/532729enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:15:27Zoai:www.alice.cnptia.embrapa.br:doc/532729Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:15:27falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:15:27Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
title Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
spellingShingle Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
FONSECA, J. F. da
hCG
Caprino
Fertilidade
Hormônio
Progesterona
Reprodução Animal
title_short Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
title_full Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
title_fullStr Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
title_full_unstemmed Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
title_sort Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats.
author FONSECA, J. F. da
author_facet FONSECA, J. F. da
MAFFILI, V. V.
RODRIGUES, M. T.
SANTOS, A. D. F.
ROVAY, H.
PINTO NETO, A.
BRANDÃO, F. Z.
TORES, C. A. A.
author_role author
author2 MAFFILI, V. V.
RODRIGUES, M. T.
SANTOS, A. D. F.
ROVAY, H.
PINTO NETO, A.
BRANDÃO, F. Z.
TORES, C. A. A.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv JEFERSON FERREIRA DA FONSECA, CNPC; V. V. Maffili, UFV; M. T. Rodrigues, UFV; A. D. F. Santos, UFV; H. Rovay, UFV; F. Z. Brandão, Universidade Federal Fluminense; C. A. C. Torres, UFV.
dc.contributor.author.fl_str_mv FONSECA, J. F. da
MAFFILI, V. V.
RODRIGUES, M. T.
SANTOS, A. D. F.
ROVAY, H.
PINTO NETO, A.
BRANDÃO, F. Z.
TORES, C. A. A.
dc.subject.por.fl_str_mv hCG
Caprino
Fertilidade
Hormônio
Progesterona
Reprodução Animal
topic hCG
Caprino
Fertilidade
Hormônio
Progesterona
Reprodução Animal
description The objective of this study was to evaluate the effect of hCG administration on plasma progesterone concentrations in lactating Alpine goats during the natural breeding season. After detection of estrus, 124 does were randomly assigned to one of two treatments (T1 and T2). In T1 (n = 60) and T2 (n = 64), the animals received 1 ml of saline solution or 250 IU of hCG i.m., respectively, 5 days after the first detection of estrus and breeding. Plasma progesterone concentration (ng/mL) was determined from blood sampled (T1 = 12 and T2 = 13) on Days 0 (day of estrus), 5, 7, 13, 17, 21, 28 and 45 after breeding. Two control goats with short cycles and two nymphomaniac goats (one per treatment) were detected. Plasma progesterone concentration (mean ± SEM) for T1 and T2 females differed on Days 13, 17 (P < 0.005) and 21 (P < 0.075), being respectively 3.8 ± 0.2 and 6.6 ± 0.7 at Day 13; 3.6 ± 0.1 and 6.5 ± 0.7 at Day 17; 4.3 ± 0.4 and 6.4 ± 0.9 at Day 21. Pregnancy rates on Days 35 and 70 did not differ (P > 0.05) between T1 (78.3%) and T2 (84.4%) does. The hCG administration 5 days after breeding increased plasma progesterone concentrations on Days 13 to 21 but did not increase pregnancy rate.
publishDate 2006
dc.date.none.fl_str_mv 2006
2007-12-13
2011-04-10T11:11:11Z
2011-04-10T11:11:11Z
2019-09-25T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Animal Reproduction, v. 3, n. 4, p. 410-414, Oct./Dec. 2006.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/532729
identifier_str_mv Animal Reproduction, v. 3, n. 4, p. 410-414, Oct./Dec. 2006.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/532729
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
_version_ 1794503377966596097