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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
Data corrente: |
15/01/2024 |
Data da última atualização: |
06/03/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GONÇALVES, J. D.; VERGANI, G. B.; RODRIGUES, J. N. D.; DIAS, J. H.; PEREIRA, V. S. do A.; GARCIA, A. R.; ESTEVES, S. N.; FONSECA, J. F. da; OLIVEIRA, M. E. F. |
Afiliação: |
JOEDSON DANTAS GONÇALVES, São Paulo State University; GABRIEL BRUN VERGANI, São Paulo State University; JULIANA NASCIMENTO DUARTE RODRIGUES, Federal University of Viçosa; JENNIFFER HAUSCHILDT DIAS, Federal University of Viçosa; VERONICA SCHINAIDER DO A PEREIRA, CNPGL; ALEXANDRE ROSSETTO GARCIA, CPPSE; SERGIO NOVITA ESTEVES, CPPSE; JEFERSON FERREIRA DA FONSECA, CNPC; MARIA EMILIA FRANCO OLIVEIRA, São Paulo State University. |
Título: |
Luteal tissue characteristics of Morada Nova ewes with hCG application 7.5 days after the end of estrus synchronization protocol in the breeding season. |
Ano de publicação: |
2024 |
Fonte/Imprenta: |
Animal Reproduction Science, v. 261, 107396, Feb. 2024. |
DOI: |
https://doi.org/10.1016/j.anireprosci.2023.107396 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Results with the use of hCG after synchronization protocol are still inconsistent, which may vary according to breed, season, day of application and dose of the drug used. The aim of the present study was to evaluate the functionality of luteal tissue and ovarian perfusion after hCG treatment during early luteal phase. Estrus-synchronized ewes were randomly assigned to receive i.m. injection of 300 IU of hCG (G-hCG; n = 40) or 1 mL of saline (G-Control; n = 32) on Day 7.5 after progesterone withdrawal. Ultrasonographic evaluations of the ovaries and ovarian and iliac arteries were performed on Days 7.5, 10.5, 13.5, and 21.5. The accessory corpus luteum (aCL) formation rate was 52.5% for G-hCG. There was interaction (p > 0.05) for treatment (G-hCG and G-Control), days (7.5, 10.5, 13.5 and 21.5) and PD (Pregnant and Non-pregnant) for the variables of biometric characteristics of the corpus luteum B-Mode and Color Doppler on days 7.5, 10.5, 13.5 and 21.5. There was no difference (p > 0.05) for pregnancy rates and mean fetuses per ewe between the treatment groups. It is concluded that the application of hCG 7.5 days after the hormonal protocol in Morada Nova ewes in a breeding season is efficient in inducing aCL formation and increasing luteal tissue biometry. However, there was no effect on pregnancy rate. |
Palavras-Chave: |
Accessory corpora lutea; Arterial velocimetric indices; HCG; Luteal color Doppler signs; Non-breeding; Ovarian ultrasound. |
Thesaurus Nal: |
Breeding; Chorionic gonadotropins; Estrus synchronization; Ewes; Females; Males; Pharmacology; Pregnancy rate; Progesterone; Reproduction; Reproductive efficiency; Seasons; Sheep. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02717naa a2200457 a 4500 001 2160892 005 2024-03-06 008 2024 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.anireprosci.2023.107396$2DOI 100 1 $aGONÇALVES, J. D. 245 $aLuteal tissue characteristics of Morada Nova ewes with hCG application 7.5 days after the end of estrus synchronization protocol in the breeding season.$h[electronic resource] 260 $c2024 520 $aAbstract: Results with the use of hCG after synchronization protocol are still inconsistent, which may vary according to breed, season, day of application and dose of the drug used. The aim of the present study was to evaluate the functionality of luteal tissue and ovarian perfusion after hCG treatment during early luteal phase. Estrus-synchronized ewes were randomly assigned to receive i.m. injection of 300 IU of hCG (G-hCG; n = 40) or 1 mL of saline (G-Control; n = 32) on Day 7.5 after progesterone withdrawal. Ultrasonographic evaluations of the ovaries and ovarian and iliac arteries were performed on Days 7.5, 10.5, 13.5, and 21.5. The accessory corpus luteum (aCL) formation rate was 52.5% for G-hCG. There was interaction (p > 0.05) for treatment (G-hCG and G-Control), days (7.5, 10.5, 13.5 and 21.5) and PD (Pregnant and Non-pregnant) for the variables of biometric characteristics of the corpus luteum B-Mode and Color Doppler on days 7.5, 10.5, 13.5 and 21.5. There was no difference (p > 0.05) for pregnancy rates and mean fetuses per ewe between the treatment groups. It is concluded that the application of hCG 7.5 days after the hormonal protocol in Morada Nova ewes in a breeding season is efficient in inducing aCL formation and increasing luteal tissue biometry. However, there was no effect on pregnancy rate. 650 $aBreeding 650 $aChorionic gonadotropins 650 $aEstrus synchronization 650 $aEwes 650 $aFemales 650 $aMales 650 $aPharmacology 650 $aPregnancy rate 650 $aProgesterone 650 $aReproduction 650 $aReproductive efficiency 650 $aSeasons 650 $aSheep 653 $aAccessory corpora lutea 653 $aArterial velocimetric indices 653 $aHCG 653 $aLuteal color Doppler signs 653 $aNon-breeding 653 $aOvarian ultrasound 700 1 $aVERGANI, G. B. 700 1 $aRODRIGUES, J. N. D. 700 1 $aDIAS, J. H. 700 1 $aPEREIRA, V. S. do A. 700 1 $aGARCIA, A. R. 700 1 $aESTEVES, S. N. 700 1 $aFONSECA, J. F. da 700 1 $aOLIVEIRA, M. E. F. 773 $tAnimal Reproduction Science$gv. 261, 107396, Feb. 2024.
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Embrapa Gado de Leite (CNPGL) |
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Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
14/05/2013 |
Data da última atualização: |
17/07/2013 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CASTRO, C. de; OLIVEIRA JUNIOR, A. de; OLIVEIRA, F. A.; RODAK, B. W.; JORDÃO, L. T. |
Afiliação: |
CESAR DE CASTRO, CNPSO; ADILSON DE OLIVEIRA JUNIOR, CNPSO; FABIO ALVARES DE OLIVEIRA, CNPSO; UFPR; CENA/USP. |
Título: |
Produtividade de soja em resposta à utilização de fontes/formulações com nitrogênio aplicadas a lanço ou sulco de semeadura. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
In: REUNIÃO PARANAENSE DE CIÊNCIA DO SOLO, 3., Londrina. Sistemas conservacionistas de produção e sua interação com a Ciência do Solo: resumos. Londrina: IAPAR, 2013. p. 84. |
Idioma: |
Português |
Thesagro: |
Adubação; Soja. |
Thesaurus NAL: |
Fertilizer application; Soybeans. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/84576/1/Produtividade-de-soja-em-resposta-a-utilizacao-de-fontes-formulacoes-com-nitrogenio-aplicadas-a-lanco-ou-sulco-de-semeadura.pdf
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Marc: |
LEADER 00746nam a2200193 a 4500 001 1957879 005 2013-07-17 008 2013 bl uuuu u00u1 u #d 100 1 $aCASTRO, C. de 245 $aProdutividade de soja em resposta à utilização de fontes/formulações com nitrogênio aplicadas a lanço ou sulco de semeadura. 260 $aIn: REUNIÃO PARANAENSE DE CIÊNCIA DO SOLO, 3., Londrina. Sistemas conservacionistas de produção e sua interação com a Ciência do Solo: resumos. Londrina: IAPAR, 2013. p. 84.$c2013 650 $aFertilizer application 650 $aSoybeans 650 $aAdubação 650 $aSoja 700 1 $aOLIVEIRA JUNIOR, A. de 700 1 $aOLIVEIRA, F. A. 700 1 $aRODAK, B. W. 700 1 $aJORDÃO, L. T.
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