Assessment of the usage of biodegradable polymeric matrix in vaginal devices to sustain progesterone release in cows - Pimentel, José Rodrigo Valim; Maturana Filho, Milton; Cardozo-Filho, Lúcio; Agnelli, José Augusto Marcondes; Nascimento, Jefter; Madureira, Ed Hoffmann (Animal Science Journal, 2017)