PROGESTERONE PROFILES OF CROSS BRED SOWS FOLLOWING DOUBLE AND TRIPLE INJECTIONS OF DINOPROST TROMETHAMINE (LUTALYSE®) TREATMENTS

Abstract

This study was carried out to evaluate progesterone profile of cross bred sows in Zaria following treatments with double and triple injections of Dinoprost tromethamine (Lutalyse®). Ten (n = 10) apparently healthy cross bred sows were randomly assigned to 2 treatment groups based on number of injections of Lutalyse®. Group 1 (n=5) received two injections of Lutalyse®(12.5mg) (days 0 and 13) while Group 2 (n=5) received three injections of Lutalyse®(12.5mg) (Day 0, 7, 13). Oestrus was monitored twice daily from 0700-1000 and 1500-1800h. Data on progesterone profile obtained during the oestrous cycle were expressed as mean ± SEM. Student t-test was used to compare the mean values between the groups. Graph pad Prism®data package for windows (2009) was employed for all statistical analyses. A value of P<0.05 was considered significant. There was no statistical significant (P > 0.05) difference in the overall mean serum P4 concentrations between groups 1 and 2. It is concluded that dinoprost tromethamine sodium can be used to synchronize sow oestrus, both double and triple injections of dinoprost tromethamine produces similar effect on progesterone concentration. It is recommended that double injections of dinoprost tromethamines hould be used for oestrus synchronization as no statistical significant (P>0.05) differences were observed in the progesterone concentrations of both groups.