Ovum pick-up interval in buffalo (Bubalus bubalis) managed under wetland conditions in Argentina: Effect on follicular population, oocyte recovery, and in vitro embryo development
| Autor: | José Luis Konrad, R. Yuponi, G. Taminelli, G. Crudeli, G. Clérico, M. Sansinena, M. J. Garrido, M. Yuponi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Oocyte
Buffaloes medicine.medical_treatment Population Argentina Embryonic Development Oocyte Retrieval Buffalo Fertilization in Vitro Embryo Culture Techniques Andrology 03 medical and health sciences 0302 clinical medicine Endocrinology Ovarian Follicle Food Animals In vitro fertilization Otras Ciencias Veterinarias Follicular phase medicine Animals Animal Husbandry Oocyte recovery education Ovum education.field_of_study 030219 obstetrics & reproductive medicine In vitro fertilisation biology Ciencias Veterinarias Embryogenesis 0402 animal and dairy science Embryo 04 agricultural and veterinary sciences General Medicine biology.organism_classification 040201 dairy & animal science Ovum pick up medicine.anatomical_structure CIENCIAS AGRÍCOLAS Wetlands Oocytes Female Animal Science and Zoology Bubalus |
| Popis: | The excellent adaptation of water buffalo (Bubalis bubalis) to swampy environments means that animals are frequently managed in areas with restricted access for reproductive procedures. The objective of this study was to evaluate the effect of the ovum pick-up (OPU) interval on follicular population, oocyte recovery, oocyte quality and in vitro embryo production. Twelve Murrah buffaloes were subjected to two consecutive dominant follicle reductions, and randomly assigned to either 7-day (n = 6) or 14-day (n = 6) OPU interval groups. Although there was no significant difference in the average number of small (8 mm) diameter follicles available per OPU, a higher proportion of medium-sized follicles (3–8 mm) were observed in the 14-day interval group (5.129 vs 3.267; p < 0.05). The number of recovered oocytes per donor was also significantly higher (4.51 vs. 2.8; p < 0.05) in the 14-day interval group, although this was attributed to an increase in the proportion of lower quality oocytes (grades III and IV). After in vitro fertilization, embryo developmental competence from grade I and II oocytes was superior to that from grade III and IV oocytes, irrespective of OPU interval group. There was no significant difference in the proportion of grade I and II oocytes cleaved after sperm co-incubation; however, there was a higher proportion of blastocysts produced in 14-day interval group (28 vs. 6%, p < 0.05). No blastocysts were produced from grade III and IV oocytes. This study indicates it is possible to use a 14-day interval for oocyte collection in water buffalo; this approach could be considered as an alternative when access to animals is restricted. Fil: Konrad, José Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina Fil: Clérico, Gabriel José. Pontificia Universidad Católica Argentina ; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Garrido, María José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina Fil: Taminelli, Guillermo Luis. Pontificia Universidad Católica Argentina ; Argentina Fil: Yuponi, M.. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina Fil: Yuponi, R.. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina Fil: Crudeli, Gustavo Angel. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias; Argentina Fil: Sansinena, Marina Julia. Pontificia Universidad Católica Argentina ; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
| Databáze: | OpenAIRE |
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