Agustini, M. A. B., Nunes, R. V., Vilela, C. G., Takahashi, S. E., Vilela, V. O., Bueno, R. S., & Polese, C. (2014). Nutritional levels of digestible threonine in brown-egg laying hens from 75 to 90 weeks of age. Semina: Ciências Agrárias, 35(6), 3449–3456. https://doi.org/10.5433/1679-0359.2014v35n6p3449