Effects of superstimulation with FSH on follicular population and recovery rate of oocytes in the growing phase of the first and second follicular wave

The objective of our study was to determine the effects of FSH superstimulation on the number of aspirated follicles and collected oocytes in dairy cows during two consequent follicular waves after treatment. Twelve unpregnant cows were used. The cows bearing corpus luteum were synchronized by PGF2a...

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Bibliographic Details
Published in:Veterinární medicína 2002-02, Vol.47 (2-3), p.33-37
Main Authors: Cech, S, Havlicek, V, Lopatarova, M, Vyskocil, M, Dolezel, R. (Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Ustav Reprodukce Zvirat)
Format: Article
Language:English
Subjects:
ANIMAL DONNEUR
CALIDAD
cattle
CORPS JAUNE
CORPUS LUTEUM
CUERPO LUTEO
DAIRY COWS
DONANTES
DONOR ANIMALS
FOLICULOS OVARICOS
FOLLICULE OVARIEN
FSH
HFS
OESTRUS SYNCHRONIZATION
OVA
OVARIAN FOLLICLES
OVULE
OVULO
ovum pick-up
PROSTAGLANDINAS
PROSTAGLANDINE
PROSTAGLANDINS
QUALITE
QUALITY
SINCRONIZACION DEL CELO
superstimulation
SYNCHRONISATION DE L'OESTRUS
VACAS LECHERAS
VACHE LAITIERE
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Summary:The objective of our study was to determine the effects of FSH superstimulation on the number of aspirated follicles and collected oocytes in dairy cows during two consequent follicular waves after treatment. Twelve unpregnant cows were used. The cows bearing corpus luteum were synchronized by PGF2alpha (day 0) and they were treated by FSH in 12 h intervals on days 12, 13, and 14. Transvaginal ultrasonographic puncture of oocytes was performed on days 7, 10, 16, and 20. The results showed that administration of FSH increased the number of follicles and the number of collected oocytes in the growing phase of the 1st follicular wave after superstimulation, nevertheless a higher number of follicles and a higher recovery rate of oocytes can be expected in the growing phase of the 2nd follicular wave after superstimulation as well.
ISSN:0375-8427
1805-9392
DOI:10.17221/5800-VETMED