Open Access Research Paper Views (1024) The Effect Of Protease Enzyme Supplementation to Productivity Eggs Of Alabio Duck Danang Biyatmoko, Tintin Rostini Int. J. Biosci. 8(2), 203-208, February 2016. DOI: http://dx.doi.org/10.12692/ijb/8.2.202-208 Keywords: Alabio duck, Egg production, Egg weight, FCR, Protease enzyme Details