Pakpahan, Rakhmaini, Universitas Graha Nusantara Padangsidimpuan
Pamungkas, Alvian Adhi, Laboratory of Beef and Dairy Sciences, Department of Animal Science, Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang City, Central Java 50275 (Indonesia)
Pane, Doharni, Universitas Graha Nusantara Padangsidimpuan
Prayitno, Edi, Laboratory of Beef and Dairy Sciences, Department of Animal Science, Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang City, Central Java 50275
Purnomo, Inggal (Indonesia)
Purnomosidi, Marjoko (Indonesia)
Purwatihningsing, Purwatihningsing (Indonesia)
Puspita, Oktavia Rahayu
Putra, Eka Juli Wijaya (Indonesia)
Putranti, Oktora Dwi (Indonesia)
Putritamara, Jaisy Aghniarahim, Faculty of Animal Science, University of Brawijaya, Malang, East Java (Indonesia)