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Effects of hormone treatments, season, age and type of mares on ovulation, twinning and pregnancy rates of mares inseminated with fresh and frozen semen



Effects of hormone treatments, season, age and type of mares on ovulation, twinning and pregnancy rates of mares inseminated with fresh and frozen semen



Pferdeheilkunde 19(6): 619-624



Records of a stud farm from years 1988-2000 consisting of 1085 mares and 1908 cycles were analyzed in a retrospective study. The type of semen had a significant effect (p<0.001) on pregnancy rate/cycle (fresh semen Al on the stud farm 56.1%, shipped semen 51.7% and frozen semen 33.1%) but not on ovulation and twinning rates.

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Accession: 003742326

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