Hernawan, E.; Adriani, L.; Mushawwir, A.; Cahyani, C.; Darmawan. Effect of Dietary Supplementation of Chitosan on Blood Biochemical Profile of Laying Hens. Pak. J. Nutr. 2017, 16 (9), 696–699. https://doi.org/10.3923/pjn.2017.696.699.