Changes in serum progesteron and 17beta-estradiol concentration after application of Suprelorin (4,7 deslorelin acetate) implant for estrus induction in bitches

Since bitches are monoestrous animals, their sexual cycle occurs much less often than other domestic and reproductive capacity is potentially less. That why manipulations with the of correction gaining more interest. Estrus induction essential to commercial breeding owners for several reasons. Understanding processes that occur during each stage cycle, it can be safely manipulated. There many methods stimulating estrus, but not all them have found practical application. The implant Suprelorin (4.7 mg Deslorelin), which primarily registered pharmacological castration dogs cats, has also its use estrus in bitches, since at beginning activities, stimulates secretion gonadotropin (GnRH), triggers synthesis follicle-stimulating luteinizing pituitary hormones. This initial mechanism action Deslorelin implants known as flash effect causes heat almost 100 % bitches. Despite numerous publications on implant, impact still being investigated. article presents changes progesterone estradiol after using compares course an induced a spontaneous one. study was conducted 13 sexually mature 7 received no earlier 150 days last 6 were included control group. removed when level increased above 3 ng/ml. In 6/7 females, this day fell 10th inserted, 1/7 – 9th. Ovulation occurred two LH peak from experimental group, corresponded 12th 11th introduction implant. group observed faster It average 8th (mediam 8 (7–9)) one bitch 7th day, three - 8th, 9th respectively. 9 (8–9), five But obtained results indicate most research before (5/7) only 2/7 peak, typical so despite, that,, later ovulation itself faster. Quantitatively, sex hormones higher predictable.