Comparison of embryo recovery, embryo quality, oestradiol-17β and progesterone profiles in domestic cats (Felis catus) at natural or induced oestrus

in Reproduction

Summary. Domestic cats experiencing a natural or FSH-induced oestrus were studied. Mated cats produced fewer (P < 0·01) unfertilized oocytes and more (P < 0·01) morulato blastocyst-stage embryos of better quality after a natural oestrus than after FSH treatment. Serum oestradiol- 17β concentrations were lower (P < 0·05) and progesterone levels rose earlier (P < 0·05) in the induced oestrus compared to the natural oestrus group. Morula/blastocyst-stage embryos from both groups transferred to 15 FSH/hCG-treated recipients produced 3 pregnancies and 2 live-born litters (1 from a natural oestrus donor and 1 from an FSH-treated donor). These results indicate that fertilization rates and embryo quality in domestic cats appear to be compromised by the FSH treatment, probably because of altered oestradiol-17β and progesterone concentrations.

Keywords: domestic cat; embryo recovery; oestrus; FSH; oestradiol-17β; progesterone.

If the inline PDF is not rendering correctly, you can download the PDF file here.

 

    Society for Reproduction and Fertility

Related Articles

Article Information

Metrics

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 153 114 6
PDF Downloads 135 122 6

Altmetrics

Cited By

PubMed

Google Scholar