Teixeira, Karla Andrade, et al. “Effect of Diets With Different Levels of Guanidinoacetic Acid on Newly Weaned Piglets”. Semina: Ciências Agrárias, vol. 38, no. 6, Nov. 2017, pp. 3887-96, doi:10.5433/1679-0359.2017v38n6p3887.