Saki, A., Rahmani, A. e Yousefi, A. 2019. Calcium particle size and feeding time influence egg shell quality in laying hens. Acta Scientiarum. Animal Sciences. 41, 1 (fev. 2019), e42926. DOI:https://doi.org/10.4025/actascianimsci.v41i1.42926.