Preparation To The Œstrus And The Reproduction. Instructions For Use: Situations For Which The Use Of Ovultonic Flash Is Appropriate: -Fertility Improvement: 1/2 Syringe 0 To 4 Hours Before A.I. -Promotes The Natural Return Of The Cycle:1 /2 Syringe To Be Renewed Every 10 Days (Max. 3 Times) -In Addition To A Synchro Program: 1 / 2Syringe At The Time Of The A.I.