DOI: 10.26650/actavet.2019.398037
The objective of this study was to
investigate the effects of the combination of uterine lavage and oxytocin
administration before and after breeding during post-partum first estrus on the
pregnancy rates of mares. Thirty mares whose fetal membranes were released
within the first 3 h after parturition were divided into three groups - the
control (n=10), pre-breeding (n=10) and post-breeding treatment group (n=10).
The uterine lavage was performed 4 h before breeding in the pre-breeding group
and 4 h after breeding in the post-breeding group. The oxytocin administration
was performed twice in both treatment groups intravenously - immediately after
and 12 h after the uterine lavage. A sterile NaCl solution (0.9%) was
administrated intravenously in the control group. In the control group there was a longer
interval between parturition and first ovulation (14.6 days) compared to
treatment groups (p<0.05). The pregnancy rates in the control; pre-breeding
and post-breeding treatment groups were calculated as 40%, 40%, and 60%,
respectively. Although early embryonic loss was not observed in both the pre-
and post-breeding treatment groups, this ratio was 25% for the control group. As a conclusion, the
administration of a uterine lavage (1 liter of sterile 0.9% NaCl solution
+4.000.000 IU crystallized penicillin +4g streptomycin sulfate) and 20 IU
oxytocin 4 h before or after breeding mares at their first postpartum ovulation
shortens the day interval between parturition and ovulation. It can be assumed
that breeding during foal heat can be effective in reducing uterine involution,
inflammatory reactions related to breeding and embryonic death.
Birincil Dil | İngilizce |
---|---|
Konular | Veteriner Cerrahi |
Bölüm | Original Article |
Yazarlar | |
Yayımlanma Tarihi | 2 Eylül 2018 |
Yayımlandığı Sayı | Yıl 2018 Cilt: 44 Sayı: 3 |