|
Registro Completo |
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
08/05/2001 |
|
Data da última atualização: |
28/01/2019 |
|
Autoria: |
VIANA, J. H. M.; FERREIRA, A. de M.; SÁ, W. F. de; CAMARGO, L. S. de A. |
|
Afiliação: |
JOAO HENRIQUE MOREIRA VIANA, CNPGL; ADEMIR DE MORAES FERREIRA, CNPGL; WANDERLEI FERREIRA DE SÁ, CNPGL; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL. |
|
Título: |
Follicular dynamics in zebu cattle. |
|
Ano de publicação: |
2000 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 12, p. 2501-2509, dez. 2000 |
|
Idioma: |
Inglês |
|
Notas: |
Título em português: Dinâmica folicular em vacas zebuínas. |
|
Conteúdo: |
The aim of this study was to investigate the follicular dynamics during estrous cycle in Gir breed (Bos indicus) cows. Follicular growth and atresia during estrous cycle were evaluated using a portable ultrasound device. Luteal activity was evaluated by serum progesterone levels. Cycles with two (6.67%), three (60.00%), four (26.67%) and five (6.67%) follicular waves were observed. There was no difference (P>0.05) in dominant or subordinate follicles growth or atresia rates among follicular waves. The maximum diameter of the ovulatory follicle was higher than the diameter of the other dominant follicles in cycles with four waves, and higher than the diameter of the second dominant follicle in cycles with three waves (P<0.05). There was no difference (P>0.05) in estrous cycle length (21.11±1.76 and 22.25±1.71 days) or progesterone levels during diestrous (4.48±1.45 and 5.08±1.40 ng/mL) between cycles with three or four waves. Follicular dynamics in Gir cattle is characterized by a higher incidence of cycles with three or four waves, associated with a low persistence of the dominant follicle. |
|
Palavras-Chave: |
Bovines; Folículo ovariano; Gir breed; Oestrous cycle; Raça Gir; Ultra-som. |
|
Thesagro: |
Bovino; Ciclo Estral; Ovário. |
|
Thesaurus Nal: |
Animal ovaries; Beef cattle; Ovarian follicles; Ultrasonics. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/18896/1/pab99_159.pdf
|
|
Marc: |
LEADER 02011naa a2200325 a 4500
001 1103624
005 2019-01-28
008 2000 bl uuuu u00u1 u #d
100 1 $aVIANA, J. H. M.
245 $aFollicular dynamics in zebu cattle.
260 $c2000
500 $aTítulo em português: Dinâmica folicular em vacas zebuínas.
520 $aThe aim of this study was to investigate the follicular dynamics during estrous cycle in Gir breed (Bos indicus) cows. Follicular growth and atresia during estrous cycle were evaluated using a portable ultrasound device. Luteal activity was evaluated by serum progesterone levels. Cycles with two (6.67%), three (60.00%), four (26.67%) and five (6.67%) follicular waves were observed. There was no difference (P>0.05) in dominant or subordinate follicles growth or atresia rates among follicular waves. The maximum diameter of the ovulatory follicle was higher than the diameter of the other dominant follicles in cycles with four waves, and higher than the diameter of the second dominant follicle in cycles with three waves (P<0.05). There was no difference (P>0.05) in estrous cycle length (21.11±1.76 and 22.25±1.71 days) or progesterone levels during diestrous (4.48±1.45 and 5.08±1.40 ng/mL) between cycles with three or four waves. Follicular dynamics in Gir cattle is characterized by a higher incidence of cycles with three or four waves, associated with a low persistence of the dominant follicle.
650 $aAnimal ovaries
650 $aBeef cattle
650 $aOvarian follicles
650 $aUltrasonics
650 $aBovino
650 $aCiclo Estral
650 $aOvário
653 $aBovines
653 $aFolículo ovariano
653 $aGir breed
653 $aOestrous cycle
653 $aRaça Gir
653 $aUltra-som
700 1 $aFERREIRA, A. de M.
700 1 $aSÁ, W. F. de
700 1 $aCAMARGO, L. S. de A.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 35, n. 12, p. 2501-2509, dez. 2000
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
