In vitro and in vivo embryo production efficiency in Flemish and Holstein donor females DOI Creative Commons
Fabiano Carminatti Zago, Luís F. Schütz, Renato Pereira da Costa Gerger

и другие.

Animal Reproduction, Год журнала: 2023, Номер 20(3)

Опубликована: Янв. 1, 2023

The aim of this study was to compare embryo production efficiency in Flemish and Holstein donor females using ovum pick-up vitro fertilization (OPU-IVF) or vivo (superovulation; SOV) procedures. conducted a split-plot design, with eight non-lactating cycling females. Females were subjected ten weekly OPU/IVF sessions and/or two SOV/embryo collections at 63-day interval, for total 160 OPU-IVF 32 SOV sessions. Mean numbers follicles corpora lutea, cumulus-oocyte complex (COC) recovery rates similar between breeds after the OPU However, donors yielded better quality grade II COCs (301, 41.9%) than (609, 202, 33.1%). Also, cleavage blastocyst rates, number mean viable embryos obtained higher (49.6% 11.8%, 63 11.8 per donor, respectively) (32.8% 7.2%, 34 7.2 also more efficient yielding (111, 7.3 donor) (48, 3.3 Overall, had responses procedures counterparts. Irrespective breeds, embryos, under conditions study. Both reproductive useful tools genetic conservation cattle breed Southern Brazil.

Язык: Английский

In vitro and in vivo embryo production efficiency in Flemish and Holstein donor females DOI Creative Commons
Fabiano Carminatti Zago, Luís F. Schütz, Renato Pereira da Costa Gerger

и другие.

Animal Reproduction, Год журнала: 2023, Номер 20(3)

Опубликована: Янв. 1, 2023

The aim of this study was to compare embryo production efficiency in Flemish and Holstein donor females using ovum pick-up vitro fertilization (OPU-IVF) or vivo (superovulation; SOV) procedures. conducted a split-plot design, with eight non-lactating cycling females. Females were subjected ten weekly OPU/IVF sessions and/or two SOV/embryo collections at 63-day interval, for total 160 OPU-IVF 32 SOV sessions. Mean numbers follicles corpora lutea, cumulus-oocyte complex (COC) recovery rates similar between breeds after the OPU However, donors yielded better quality grade II COCs (301, 41.9%) than (609, 202, 33.1%). Also, cleavage blastocyst rates, number mean viable embryos obtained higher (49.6% 11.8%, 63 11.8 per donor, respectively) (32.8% 7.2%, 34 7.2 also more efficient yielding (111, 7.3 donor) (48, 3.3 Overall, had responses procedures counterparts. Irrespective breeds, embryos, under conditions study. Both reproductive useful tools genetic conservation cattle breed Southern Brazil.

Язык: Английский

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