雖然規模較小,但這次通過Matrix調整發情週期的生產實踐說明,按標籤劑量投用Matrix 可延遲發情。停用Matrix之後,性成熟後備母豬會在5 – 7天內發情。
參考資料
Knox R. V., S. L. Rodriguez-Zas, G.M. Miller, K. L. Willenburg, and J. A. Robb. 2001. Administration of P.G. 600 to sows at weaning and the time of ovulation as determined by transrectal ultrasound. J. Anim. Sci. 79:796-802
Bates, R. O., J. Kelpinski, B. Hines, and D. Ricker. 2000. Hormonal therapy for sows weaned during fall and winter. J. Anim. Sci 78:2068-2071
Singleton, W and M. Diekman. Reproductive physiology and anatomy of the sow. Animal Science, Purdue University. Available: http://www.ansc.purdue.edu/swine ... hysiol/reppaper.htm
Estienne, M.J. and A. F. Harper. Using Artificial Insemination is Swine Production: Detecting and Synchronizing Estrus and Using Proper Insemination Technique. Animal Science, Virginia Tech. Available: http://www.ext.vt.edu/pubs/swine/414-038/414-038.html
P.G. 600 , Matrix, Estrumate, Prostamate 和 Lutalyse 的產品標籤。
1P.G. 600是英特威公司(Intervet Inc.)產品,Millsboro, DE
2Matrix是英特威公司(Intervet Inc.)產品,Millsboro, DE
3Prostamate是AgriLabs的產品,St. Joseph, MO
4Lutalyse是輝瑞公司(Pfizer Inc.)產品,New York, NY