Treatment of repeat breeding of Iraqi native river buffaloes (Bubalus bubalis) south of Baghdad using different hormonal treatment – a field study


AbstractThis study aimed to evaluate the effects of hormonal treatment ( GnRH and PGF2α) with and without antibiotics in the treatment of repeat breeders (RB) of Iraqi native river buffaloes (Bubalus bubalis) in private dairy farms located in the south of Baghdad for improving the reproductive performance in addition to find the ratio of repeat breeder. The study included (112) Buffalo cows suffering from repeat breeding for more than three unfertile insemination estrus cycles. Buffalo cows were divided into 4 groups according to programs treatment (G1=PGF2α, G2=GnRH , G3= PGF2α+GnRH and G4=PGF2α+Iodine+Oxytetracyclen) respectively. Results of the study revealed that the using of (GnRH and PGF2α) hormones with and without antibiotic (Oxytetracycline+Iodine) are useful in improving the reproductive performance of Buffalo cows. The pregnancy rate after the application of the proposed treatments , measured after (60-65) days by rectal palpation, in the four groups proposed as follows ( 60.0% , 46.6 % , 71.8 % , 75.0 % ) respectively . The pregnancy rates in groups (G3 and G4) were significantly higher than in (G1and G2) groups (P<0.05) and the treatment with (GnRH+PGF2α) hormones or (PGF2α+Iodine+Oxytetracyclen) was more useful in improving the reproductive performance of these animals, the ratio of repeated breeding in Iraqi native river buffaloes (Bubalus bubalis) was about 44.8% (112 out of 250 animal examined in this study). In conclusion, the application of treatments with (GnRH+PGF2α) or (PGF2α+Iodine+Oxytetracyclen) is useful and highly efficient in improving reproductive performance in buffalo cows suffering from repeat breeding.Keywords: Repeat breeders, hormonal treatment, native buffaloes.