Sá, Cristiane Otto de, et al. “Influence of Photoperiod on Food Intake, Milk Yield and Milk Composition of Bergamasca Ewes”. Pesquisa Agropecuaria Brasileira, vol. 40, no. 6, June 2005, pp. 601-8, https://doi.org/10.1590/S1678-3921.pab2005.v40.6999.