The present study aimed to determine the effects of different storage materials and storage period on some hatchability traits of Japanese quail (Coturnix coturnix japonica) eggs. A total of 32 male and 102 female quail (twelve weeks of ages) were housed in multiple-bird cages. Eggs laid were divided into three groups with respect to the period of storage (I = 1, 2 and 3 days, II = 6, 7 and 8 d...

Inbreeding, which is the mating of related individuals, increases homozygosity and leads to depression, especially in traits with low heritability. In this study, parent-offspring, full-sibling half-sibling groups were formed their effects on embryo loss hatch weight investigated. a total 2130 fertile Japanese quail eggs used. Embryo losses divided into three periods; early period (first 5-day)...

This study was conducted in the farm of Department Animal Production, college Agriculture –Tikrit University for duration 19/11/2021 to 23/12/2021. The aim this effect colour plumage and breeding system on traits reproductive Japanese quail Use experiment 180 A bird age 21 Days were divided into two groups according 90 brown Black birds, each group that raised systems (batteries floor). Contain...

the current study investigated the effect of short-term selection for four week body weight (bw) on performance of divergent lines of japanese quail and their crosses. the mean of bw at hatching time, one, two, three and four week oldand bw at sexual maturity time, age at sexual maturity, number of eggs (from 50 to 100 days old), mean of egg weight, percentage of fertility and hatchability in e...

The goal of this experiment was to investigating of effects of different levels of nano chromium (N-Cr) in diet on egg quality and blood chromium content of japanese quail. Two hundred and forty laying japanese quail (45 day old) were randomly distributed to 20 experimental unit with 12 birds in cage pens of 40 × 80 cm. Experimental treatments include: 1) control national research council (NRC,...

Quail is an alternative source of protein for humans. These birds can be affected by common bacterial infections. Bacterial contamination of egg is the most common cause of mortality in Japanese quail chicks. In order to study the role of some members of Enterobacteriaceae responsible for early mortality in Japanese quail chicks, 100 dead or moribund quail chicks were obtained from 10 different...

An F2 Japanese quail population was developed by crossing two strains (wild and white) to map quantitative trait loci (QTL) for performance and carcass traits. A total of 472 F2 birds were reared and slaughtered at 42 days of age. Performance and carcass traits were measured on all of the F2 individuals. Parental (P0), F1 and F2 individuals were genotyped with 3 microsatellites from quail chrom...

This study was conducted to investigate the effect of fenugreek and copper sulfate supplementation levels and their combinations in diets on productive, physiological performance, lipids profile in blood, liver or yolk, fertility and hatchability of Japanese quail for a period of 7 weeks (from 8 to 14 weeks). A total number of 162 mature Japanese quail birds were used in this study. Quail birds...