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| Morales Terán, Gladis. |
| Se realizaron tres experimentos para determinar el efecto del amamantamiento y su interacción con el efecto macho, el efecto del destete y el efecto del suplemento de aceite de soya durante el periodo postparto (PP) en la eficiencia reproductiva de ovejas Pelibuey. En el experimento 1, a los 7 d postparto, cuatro tratamientos se asignaron al azar a las ovejas con sus crías: amamantamiento continuo (AC), amamantamiento controlado (Ac), amamantamiento continuo con macho (ACCM) y amamantamiento controlado con macho (AcCM). A partir del día 7 al día 60 postparto, se tomaron muestras de progesterona dos veces por semana y por medio del ultrasonido se realizó el registró del día a que emergen los folículos 4-5mm y folículos preovulatorio (FP; >6mm). El... |
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Palavras-chave: Amamantamiento; Efecto macho; Desarrollo folicular; Aceite de soya; Postparto; Nursing; Male effect; Follicle development; Soy oil; Postpartum; Doctorado; Ganadería. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/193 |
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| Morales Terán, Gladis. |
| Se realizaron tres experimentos para determinar el efecto del amamantamiento y su interacción con el efecto macho, el efecto del destete y el efecto del suplemento de aceite de soya durante el periodo postparto (PP) en la eficiencia reproductiva de ovejas Pelibuey. En el experimento 1, a los 7 d postparto, cuatro tratamientos se asignaron al azar a las ovejas con sus crías: amamantamiento continuo (AC), amamantamiento controlado (Ac), amamantamiento continuo con macho (ACCM) y amamantamiento controlado con macho (AcCM). A partir del día 7 al día 60 postparto, se tomaron muestras de progesterona dos veces por semana y por medio del ultrasonido se realizó el registró del día a que emergen los folículos 4-5mm y folículos preovulatorio (FP; >6mm). El... |
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Palavras-chave: Amamantamiento; Efecto macho; Desarrollo folicular; Aceite de soya; Postparto; Nursing; Male effect; Follicle development; Soy oil; Postpartum; Doctorado; Ganadería. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/193 |
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| SHIMIZU, Takashi; AKIYAMA, Hirotada; ABE, Yasuyuki; SASADA, Hiroshi; SATO, Eimei; MIYAMOTO, Akio; UCHIDA, Takafumi; 清水, 隆; 宮本, 明夫. |
| Protein phosphorylation on certain serine or threonine residues preceding proline (Ser/Thr-Pro) is a pivotal signaling mechanism in diverse cellular processes. Pin1 is a highly conserved enzyme that isomerizes only the phosphorylated Ser/Thr-Pro bonds in certain proteins, thereby inducing conformational changes. Although much protein is phosphorylated in the ovary, the role of Pin1 in the ovary is still unknown. The purpose of this study is to investigate the effects of gonadotropins on protein and mRNA expression of Pin1 in mice ovaries. Quantitative PCR analysis showed that the expression of Pin1 mRNA significantly increased in the ovaries of equine chorionic gonadotropin (eCG)-treated mice compared with those of untreated mice (P<0.05). However,... |
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Palavras-chave: E2F; Follicle development; Gonadotropin; Ovary; Pin1. |
| Ano: 2006 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4056 |
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| Hatcher, Sue; Johnson, P.R.. |
| This paper reviews the development of the wool follicle population with a view to the management of breeding ewes so as to optimise the genetic potential of the progeny for wool production and quality throughout their lifetime. It highlights the importance of the pre-weaning environment (i.e. maternal nutrition through pregnancy and lactation) on the initiation and maturation of the secondary follicle population and identifies the last third of pregnancy as the most critical period. The implications of this for the commercial wool producer are discussed in terms of matching the breeding cycle of the ewes to available pasture and provision of supplementary feed. Finally, it introduces a national project 'Lifetime Wool' funded by Australian Wool Innovation... |
| Tipo: Article |
Palavras-chave: Genetic potential; Follicle development; Breeding ewe; Nutrition; Lifetime wool; Farm Management. |
| Ano: 2005 |
URL: http://purl.umn.edu/123141 |
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| SHIMIZU, Takashi; 清水, 隆. |
| Ovarian follicular development in mammals is the complex process including endocrine, paracrine and autocrine. There is the development of four basic stages of ovarian follicles, i.e. the primordial, primary, secondary and tertiary or Graafian follicles. There are few blood vessels in the cortical area where primordial and primary follicles are assembled. The development of these follicles is stimulated by oocytes derived factor including growth differentiation factor 9 (GDF-9) or bone morphogenetic protein 15 (BMP-15). Porcine GDF-9 complementary DNA (cDNA) cloned, and then injected its gene into the ovary in gilts. The injection of porcine GDF-9 gene resulted in an increase in the number of primary, secondary and tertiary follicles, concomitant with a... |
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Palavras-chave: Follicle development; Gene injection; Growth differentiation factor 9 (GDF-9); Ovary; Vascular endothelial growth factor (VEGF). |
| Ano: 2005 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4059 |
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