In order to compare and evaluate the rate of growth and reproduction in two quail strains, Coturnix Japanese and Coturnix ypisilophorus (Range quail), in breeding conditions in house was studied through three trials. In the first trial to estimate the genetic parameters (single-trait and multi-trait method), comparing growth, slaughter and carcass characteristics 32 pairs of Japanese quails and 26 pairs of Range quails were randomly selected from the base population of parents (1000 quails). One male and one female quail in an individual one-tier cage performed the mating. The birds were wing banded according to the cage number. The eggs were collected through 5 periods of 10 days (50 days) and the collected eggs were marketed according to parents number and were set in incubator. 347 Coturnix chickens and 295 Range chickens which were hatched from 1 to 63 days of age were weighted. In 49 days of age (5 hatches) and 63 days of age (3 hatches) from each strains 10 male and 10 female were slaughtered and carcasses were separated. In second trial from the population of parents, 500 quails randomly were selected for 4 groups and in order to produce fertile eggs, every group at a one male to 3 female ratio were kept in separate pens. Fertility eggs in each group were hatched in 5 hatches. From each group in every hatch 50 chickens after attaching the wing number were transferred in house and breeded. To compare the growth, body weight from 1 to 63 days of age weekly and individually was recorded. In order to determine the feed conversion, feed intake weekly and collectively was measured and to evaluate slaughter and carcass characteristics in 49 days of age from each group 10 quail (5 male and 5 female) randomly were slaughtered in 2 hatches. In third trial to compare reproductive traits in two quail strains, 2700 eggs were sat from six hatches in the incubator, and fertility, hatchability chicken weight and shell weight were determined. The result of first trial showed that heritability coefficient of body weight from 1 to 63 days of age through single-trait method in Coturnix quail are from the least amount (0.114±0.107) for body weight in 49 days of age up to maximum amount (0.482±0.254), for body weight in 1 day of age. In Range quail the maximum of heritability coefficient (0.567±0.312) for body weight in 1 day of age and the maximum amount (0.151±0.154) for body weight in 14 days of age was estimated. For slaughter and carcass characteristics, the maximum of heritability coefficient through single-trait method in Coturnix quail, carcass weight without viscera (0.438±0.155) and the maximum amount (0.031±0.090) for best percent were calculated. In Range quail, thigh weight with coefficient showed (0.787±0.406) the maximum amount and gizzard, liver and heart weight with coefficient (0.004±0.104) showed
