Effect of Using Melatonin Implants on Postpartum Reproductive Indices in Tigaia Sheep Breed. - Padeanu, Ioan; Voia, Sorin; Gavojdian, Dinu; Mircu, Călin; Constantin, Pascal; Sauer, Maria; Rău, Vasile; Fratila, Iulian (Scientific Papers: Animal Science & Biotechnologies / Lucrari Stiintifice: Zootehnie si Biotehnologii, 2012)