Chegini, A., Ghavi Hossein-Zadeh, N. and Hosseini-Moghadam, H. 2015. Effect of calf sex on some productive, reproductive and health traits in Holstein cows. Spanish Journal of Agricultural Research. 13, 2 (May 2015), e0605. DOI:https://doi.org/10.5424/sjar/2015132-6320.