the effect of lh and gnrh analogues on induction of ovulation in bactrian camel (camelus bactrianus)

ovarian follicle response and corpus luteum formation following induction of ovulation using gonadotropin-releasing hormone (gnrh) analogues and luteinizing hormone (lh) in bactrian camel were characterized. bactrian camels with a mature follicle (13-19.6 mm) received: 1) natural porcine lh (25 mg, iv, n = 4), 2) buserelin (20 μg, iv, n = 4) and 3) alarelin (25 μg, im, n = 4). daily ultrasonography and blood samplings were conducted between day -3 and +15 of the experiment (day 0 = induction of ovulation). data were analyzed by univariat analysis with repeated measures analysis included in the model. following treatment, mature follicle ovulated within 2 days and a new follicle wave emerged after 2-3 days. new mature follicle reached a size of 13.5 ± 0.14 mm by day 12. corpus luteum was detected on day 6 and reached the maximum size of 19.73 ± 0.81 mm on day 9. progesterone concentration initiated to increase on day 5, reached maximum concentration on day 9 and decreased significantly on day 11. in conclusion, due to the lack of significant difference among treatment groups (p>0.05), alarelin may be considered as a drug of choice for inducing ovulation in bactrian camel because of its effectiveness, simple route of administration (im vs. iv), lower price, and local availability.