Blanchard T L, Elmore R G, Youngquist R S, Loch W E, Hardin D K, Bierschwal C J, Ganjam V K, Balke J M, Ellersieck M R, Dawson L J, Miner W S
Department of Veterinary Medicine and Surgery, University of Missouri-Columbia, Columbia, MO 65211 USA.
Theriogenology. 1983 Jul;20(1):121-31. doi: 10.1016/0093-691x(83)90031-6.
Fifty mature pony stallions were randomly assigned to one of five treatment groups: Group 1- controls (no treatment), Group 2 - 0.55 mg/kg stanozolol weekly for 13 treatments, Group 3 - 1.1 mg/kg stanozolol every 3 weeks for 5 treatments, Group 4 - 1.1 mg/kg boldenone undecylenate every 3 weeks for 5 treatments, and Group 5 - 0.55 mg/kg boldenone undecylenate weekly for 13 treatments. Scrotal widths (SW), combined testis weights (CTW), and daily sperm productions (DSP) were not different between Groups 1 and 2. Ponies in Group 5 had smaller SW (P<0.01), smaller CTW and decreased DSP compared to controls (P < 0.05). Although SW for ponies in Groups 3 and 4 were less than for controls (P < 0.01), CTW and DSP were not different. The only treatment regime that did not alter SW, CTW, and DSP was Group 2 (0.55 mg/kg stanozolol weekly for 13 treatments).
第1组为对照组(不治疗),第2组每周注射0.55毫克/千克司坦唑醇,共治疗13次,第3组每3周注射1.1毫克/千克司坦唑醇,共治疗5次,第4组每3周注射1.1毫克/千克十一酸睾酮,共治疗5次,第5组每周注射0.55毫克/千克十一酸睾酮,共治疗13次。第1组和第2组之间的阴囊宽度(SW)、睾丸总重量(CTW)和每日精子生成量(DSP)没有差异。与对照组相比,第5组的公马阴囊宽度较小(P<0.01),睾丸总重量较小,精子生成量减少(P<0.05)。虽然第3组和第4组公马的阴囊宽度小于对照组(P<0.01),但睾丸总重量和精子生成量没有差异。唯一未改变阴囊宽度、睾丸总重量和精子生成量的治疗方案是第2组(每周注射0.55毫克/千克司坦唑醇,共治疗13次)。