A5075167939- Reproductive Biology and Fertility
- Sperm and Testicular Function
- Reproductive Physiology in Livestock
- Reproductive biology and impacts on aquatic species
- Genetic and phenotypic traits in livestock
- Ovarian function and disorders
- Effects of Environmental Stressors on Livestock
- Soil Mechanics and Vehicle Dynamics
- Animal Behavior and Welfare Studies
- Pharmacological Effects and Assays
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Forest Biomass Utilization and Management
- Reproductive Health and Technologies
- Agriculture and Rural Development Research
- Livestock Farming and Management
- Meat and Animal Product Quality
- Bee Products Chemical Analysis
University of Cuenca
2017-2024
Numerous studies have shown the influence of moon cycle on biological functions in farm animals, suggesting that predicting calving distribution could enhance survival rates by improving management practices animal production. This study builds previous research examining impact lunar frequency, gestation length, birth weight, and calf sex artificially inseminated cows. We analyzed 121,276 records from dual-purpose crossbred cows across 36 farms along western margin Lake Maracaibo basin,...
Se evaluó el efecto de la adición melatonina (Mt) en medio maduración y/o vitrificación ovocitos bovinos sobre clivaje y posterior desarrollo embrionario. Los complejos ovocito-células del cúmulo (COCs) fueron obtenidos vacas criollas mediante técnica aspiración transvaginal guiada por ultrasonografía (OPU) ovarios matadero (OM). Del pool ambas fuentes se seleccionaron los que tenían citoplasma homogéneo tres o más capas compactas células cúmulo. COCs seleccionados asignados aleatoriamente a...
In the Ecuadorian Andes there is a Creole bovine biotype whose population disappearing. vitro embryo production and cryopreservation an important biotechnology that allows conservation of animals threatened with extinction. The objective this study was to determine in embryos from creole heifers raised highlands Ecuador. Immature cumulus-oocyte complexes were retrieved by ovum pickup 10 (OPU) abattoir ovaries (control). experiment completed within 8 replicates. Cumulus-oocyte cultured...
El estudio tuvo como objetivo evaluar el efecto del suero fetal bovino (FCS) agregado al medio de cultivo los días 5 a 7 después la fertilización in vitro sobre producción y posterior criotolerancia blastocistos vaquillonas criollas ecuatorianas. Se recolectaron complejos cúmulo-ovocitos (COCs) inmaduros mediante aspiración intravaginal guiada por ultrasonido (OPU) 10 ovarios matadero en ocho sesiones. Los COCs se sometieron maduración (MIV), fecundación (FIV) (IVC). día 1 FIV, presuntos...
Reproduction, Fertility and Development is an international journal publishing original research , review comment in the fields of reproduction developmental biology humans, domestic animals wildlife
Reproduction, Fertility and Development is an international journal publishing original research , review comment in the fields of reproduction developmental biology humans, domestic animals wildlife
This study was conducted with the aim to determine effect of bovine corpus luteum on in vitro embryo production. Immature cumulus-oocyte complexes (COC) were aspirated from abattoir ovaries cows (mainly Holstein and dairy crossbred heifers) (ipsilateral; CL+) without (contralateral; CL−) (CL), CL any ovaries. The average weight each group 10.4±0.25, 5.7±0.25, 6.1±0.25g for CL+, CL−, C, respectively. experiment completed within 12 replicates (100 per group). COC cultured maturation medium...
Reproduction, Fertility and Development is an international journal publishing original research , review comment in the fields of reproduction developmental biology humans, domestic animals wildlife