Pinheiro, J.W. et al. 2013. Sunflower cake in the diet of semi heavy weight laying hen. Semina: Ciências Agrárias. 34, 6Supl2 (Dec. 2013), 3959–3970. DOI:https://doi.org/10.5433/1679-0359.2013v34n6Supl2p3959.