Gottschall, C. S., Canellas, L. C., Marques, P. R., & Bittencourt, H. R. (2009). Relationships between age, weight, average weight gain and days on feed of beef steers slaughtered at 15 or 27 months of age. Semina: Ciências Agrárias, 30(3), 717–726. https://doi.org/10.5433/1679-0359.2009v30n3p717