“…The genes controlling LSB in any parity may differ from another; therefore, each parity must be treated as a different trait (Noguera et al,2003;Roeche et al,1995). The Bayesian approach via the Gibbs sampling has been used to estimate genetic parameters of LSB and birth weight, body weight, and LSB, carcass traits and visual scores, survival, body condition score, wool shedding, worm resistance, wool and growth traits, and daily gain traits in some populations of sheep (Latifi et al, 2017;Yadollahi et al, 2019;Yazdi et al,1999;Ghavi Hossein-Zadeh., 2010;Júnior et al, 2017;King et al, 2006;Alves et al, 2016;Vargas Jurado et al,2016;Ciappesoni et al, 2013;Gowane et al, 2015).…”