Data collected on 765litters produced from 261 does and 69 sires of New Zealand White for five consecutive years. The data of doe traits (DBW = doe body weight, DPE = doe production efficiency), litter traits (LSB = litter size at birth, LSW = litter size at weaning, LW1, LW2, LW3 and LW4 = litter weight at 1 st , 2 nd , 3 rd week and 4 th week of age respectively, litter gain traits (LG1= litter gain from birth to 1 st week, LG2= litter gain from birth to 2 nd week, LG3= litter gain from birth to 3 rd week, LG4= litter gain from birth till to 4 th week of age resp.) and lactation traits (MY1, MY2, MY3 and MY4) = milk yield during the 1 st , 2 nd , 3 rd and 4 th week respectively, milk conversion ratio (MCR1, MCR2, MCR3 and MCR4 = milk conversion ratio from kindling till 1 st , 2 nd , 3 rd and 4 th week respectively (g litter gain per g of milk suckled during 1 st , 2 nd , 3 rd and 4 th weeks respectively of lactation).Heritability for doe traits were low (0.05 for DBW and 0.08 for DPE);h 2 were low ranged from 0.01 to 0.06 for litter size (LSB and LSW); from 0.0 7 to 0.20 for litter weights. The trend was the same in the case of both litter gain and milk traits. The highest repeatability R 2 estimates (0.74 and 0.76) were obtained for DBW and MCR4. R 2 estimates for other studied traits tended to be low to moderate in magnitude and ranged from 0.01 to 0.20 for litter traits and ranged from 0.14 to 0.40 for milk traits. The ranges of transmitting ability were 248.29 and 0.234 grams for DBW, DPE; ranged from 0.297 to 880.54 grams for litter traits, ranged from 0.383.22 to 416.29grams for milk yield, finally ranging from 0.584 to 5.06 % for milk conversion ratio from kindling till 1 st , 2 nd , 3 rd and 4 th week respectively. The percentages positive transmitting ability estimates were 48.41 and 47.52% for doe traits, ranged from 46.37 to 52.99% for litter traits and ranging from 33.63 to 46.50% for lactation traits. The ranges of transmitting abilities estimates for top 25% of animals were 121.28 and 0.117% for doe traits, ranged from 0.124 to 0.841% for litter traits. The rank correlation was negative, moderate and highly significant between DBW and DPE were generally positive,