CONCEPTION RATE IN BULGARIAN MURRAH BUFFALOES AFTER A PRESYNCH/OVSYNCH PROTOCOL APPLIED IN NON-BREEDING AND BREEDING SEASON

Abstract

The aim of the presented study was to establish the conception rate in Bulgarian Murrah buffaloes submitted to estrus synchronization via Presynch/Ovsynch protocol applied in non-breeding and breeding season. The experiment was conducted in 24 buffaloes with at least 40 days postpartum, allotted into two groups according to the treatment season: Group I (n=8) – non-breeding season, Group II (n=16) – breeding season. On day 0 and day 35 after artificial insemination, the buffaloes were examined by transrectal ultrasound to identify ovarian structures and prove pregnancy, respectively. The initial ultrasound examination revealed the presence of a corpus luteum and a follicle with a diameter ≥10 mm in 33.33% (8/24) of all cases, solely a follicle ≥10 mm in 45.84% (11/24) and follicles with a diameter 10 mm.

Keywords

• buffaloes
• presynch
• ovsynch
• conception rate