|
|
|
|
|
| Sollecito,N.V.; Pereira,E.C.M.; Grázia,J.G.V.; Neves,B.P.; Couto,B.V.R.; Andrade,V.B.; Miranda,M.S.; Silva,J.K.R.; Borges,A.M.. |
| ABSTRACT The aim of this study was to evaluate the supplementation of embryo culture medium with antioxidant obtained from oily extract of Lippia origanoides on in vitro blastocyst development and quality. Oocytes collected from slaughterhouse ovaries were matured and fertilized in vitro following standard laboratory procedures. Zygotes were cultured in SOF medium supplemented according to the following treatments: T1 embryo culture medium without antioxidant supplementation; T2)50μM/mL Cysteamine; T3)2.5μg/mL; T4)5.0μg/mL and T5)10.0μg/mL of antioxidant obtained from oily extract of Lippia origanoides. On the seventh day of culture, the blastocysts were fixed and evaluated for apoptosis rates, number of total cell and inner cell mass cells by means of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidants; Apoptosis; Lippia origanoides; In vitro embryo production. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000300723 |
| |
|
|
| Leão,R.A.C.; Castro,F.L.S.; Xavier,P.R.; Vaz,D.P.; Grázia,J.G.V.; Baião,N.C.; Avelar,G.F.; Marques Júnior,A.P.. |
| ABSTRACT In broiler breeder roosters, the weight of the testes is positively associated with daily sperm production and fertility. In birds, the testes are located in the coelomic cavity, not being accessible to reproductive evaluation as mammalian testes. The reproductive evaluation of roosters is based on phenotypic traits. Any changes on testes will be reflected on fertility levels. The aim of this paper was to evaluate the potential of association of phenotypic traits as body weight (BW), comb scores (COS), cloaca scores (CLS) and feet scores (FS) with testicular morphometric parameters in adult Cobb® Mx roosters in two ages (25 and 45 weeks of age). The low BW roosters had lower testes weight (TW), smaller seminiferous tubule diameter (STD) and lower... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Testicular regression; Rooster; Histomorphometry; Phenotypic characteristics; Histology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000601529 |
| |
|
|
| Grázia,J.G.V.; Silveira,R.O.; Pereira,E.C.M.; Santos,G.M.. |
| RESUMO O Brasil atualmente é detentor do terceiro maior rebanho de vacas leiteiras do mundo, composto, em sua maioria, de animais mestiços F1 (Gir X Holandês), os quais são bem adaptados às áreas tropicais. O objetivo do presente estudo foi investigar a eficiência da ovum pick-up (OPU) e da produção in vitro de embriões oriundos de doadoras Girolando com sêmen sexado de touros provenientes de duas raças, Gir e Holandesa. Foram utilizados dados referentes a 232 animais de diversos rebanhos, totalizando 4334 oócitos recuperados. Os oócitos foram classificados, e as estruturas viáveis (GI, GII e GIII) foram utilizadas para produção in vitro de embriões (PIVE). Foi observada uma média de oócitos recuperados para as doadoras F1 de 18,14±1,33. Além disso,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Girolando; OPU; PIVE. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000300605 |
| |
|
|
|
