tailieunhanh - Báo cáo khoa học: "Clinical and Endocrine Investigations after Dexamethasone and Prostaglandin Induced Premature Parturition – A Case Repor"

Tuyển tập các báo cáo nghiên cứu về bệnh thú y được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành thú y đề tài: Clinical and Endocrine Investigations after Dexamethasone and Prostaglandin Induced Premature Parturition – A Case Report. | Acta vet. scand. 2001 42 307-310. Brief Communication Clinical and Endocrine Investigations after Dexamethasone and Prostaglandin Induced Premature Parturition - A Case Report By K. Kask1 K. Konigsson1 H. Kindahl1 and H. Gustafsson2 department of Obstetrics and Gynaecology Faculty of Veterinary Medicine Centre for Reproductive Biology in Uppsala Swedish University of Agricultural Sciences Uppsala and 2Swedish Dairy Association Eskilstuna Sweden. Sometimes it is necessary to induce abortion parturition in cattle. The most common methods are by injections of either PGF2a or an analogue or dexamethasone flumethasone. If the induction is performed too early in pregnancy the likelihood of achieving parturition or abortion is low. In an experiment where dexamethasone was used to induce parturition in heifers Kask et al. 2000 ab Konigsson et al. 2001 one animal did not respond to the induction and this brief communication is based on that particular animal. The heifer Swedish Red and White breed received 2 injections of dexamethasone Voren-vet vet. Boehringer Ingelheim GmbH Ingelheim Germany at 2 Z weeks before expected term with a dose of 20 mg per injection 24 h in between. Eleven days after the second injection of dexamethasone parturition had not yet occurred. At that time 25 mg prostaglandin F2a Dinolytic vet. Boehringer Ingelheim was given intramuscularly and this was repeated 24 h thereafter. The general clinical status and occurrence of vaginal discharge were monitored daily until 7 weeks postpartum PP . Rectal palpation for determining uterine tone and position were performed every third day starting on the day 5 PP. On the same days uterine content measurements of the diameter of the cervix and uterine horns as well as resumption of the ovarian function were monitored by ultrasonography. Uterine biopsy samples were collected during 6 weeks postpartum for determination of elimination of uterine bacteria. Jugular vein blood samples for analysis of PGF2a metabolite