The present study aimed to analyze the live weight (LW) and some bodymeasurements to estimate the LW of lambs in five different meat-typesheep breeds reared in the same flock under intensive conditions. A totalof 202 head of lambs, including both genders of Kivircik (K), Bandirma(B), Karacabey Merino (KM), Hampshire Down x Merino crossbreed(HM), and Ramlic (R), were conducted in this study. Birth weights rangedbetween 3.94-5.07 kg in those breeds and were affected significantly bybreed and birth types (P<0.001). The effect of sex was clearly seen withthe weaning period; males lambs were 2.61 kg heavier than female lambs(P<0.001). The importance of breed differences on chest circumference(CC) increased as the lambs grew older. On the other hand, sex had asignificant effect on all body measurements at the pre- and post-weaningperiod (P<0.01 and P<0.001); however, did not on body length (BL) atthe pre-weaning period (P>0.05). In contrast, the importance of birth typeon BL and CC decreased as the lambs grew older (P>0.05). The results ofregressing LW and body measurements show that LW was very highly(P<0.001) correlated with body measurements (r=0.682–0.892). Thehighest correlations were observed between LW and CC (r=0.802-0.892)in B, KM, and R lambs. These results suggest that using bodymeasurements as a correction factor has a great benefit in those breeds,such as withers height and CC are used to estimate LW in KM and Rlambs, effectively.