Introduction: To increase the efficiency in meat production, genetic parameters knowledge is essential. In this context, with meat aptitude, the Texel breed has desired characteristics in sheep breeding to produce more meat in a shorter time. The present study aimed to estimate the maternal and direct heritabilities using the animal model for the traits birth weight (BW), weaning weight (WW), weight at 30 days after weaning (WW30), weight at 60 days after weaning (WW60) and average daily gain from birth to weaning (WGBW) in Texel lambs, managed in the southern region of Brazil.