da Silva, H.K., Cassoli, L.D., Pantoja, J.C.F., Cerqueira, P.H.R., Coitinho, T.B. and Machado, P.F. 2017. Short communication: Bovine milk sampling efficiency for pregnancy-associated glycoproteins (PAG) detection test. Spanish Journal of Agricultural Research. 14, 4 (Jan. 2017), e04SC01. DOI:https://doi.org/10.5424/sjar/2016144-9923.