Marques, Raquel Ornelas, et al. “Effect of Concentrate Supplementation During Pre-Kidding on the Productive and Reproductive Performance of Goats Raised on Guinea Grass (Panicum Maximum Cv. Tobiatã) Pasture”. Semina: Ciências Agrárias, vol. 37, no. 3, June 2016, pp. 1489-04, doi:10.5433/1679-0359.2016v37n3p1489.