CONFLICT OF INTEREST STATEMENT None of the authors have any conflict of interest to declare. REFERENCES , , , & (2016). Determination of gestational time and prediction of parturition in dogs and cats: An update. Reproduction in Domestic Animals, 51(Suppl 1), 12–17. , , & (2008). Ultrasonographic study of deep portion of diencéfalo telencephalic vesicle for the determination of gestational age of the canine foetus. Reproduction in Domestic Animals, 43(3), 367–370. , & (2004).