Present study investigates the role of temporal phase relation of serotonergic and dopaminergic oscillations in the regulation of seasonal reproduction in summer breeding Jungle bush quail, Perdicula asiatica and autumn breeding rain quail, Coturnix coturnix coromandelica. Two sets of experiments were performed in month of August, in reproductively quiescent (RQ) bush quail and reproductively a...

Diallel crosses were used to investigate the genetic inheritance of stress responsiveness through examination of population effects in progeny of randombred (RB) quail and quail selected for reduced (low stress, LS) or exaggerated (high stress, HS) plasma corticosterone (CS) response to brief immobilization. The three genotypes were crossed in a 3 x 3 factorial arrangement of treatments that al...

Variation in fertilization success underlies sexual selection, yet mating does not guarantee fertilization. The relationship between natural inseminations and fertilization success is essential for understanding sexual selection, yet that relationship and its underlying mechanisms are poorly understood in sperm-storing vertebrates such as birds. Here the relationship is analyzed in mating trial...

The aim of the current work was to present main quality characteristics and composition meat most valuable parts carcass - breasts legs 35-day-old domestic quails from meat, dual-purpose egg-laying type. obtained results give basis assume that glycogen reserve pectoral muscle can be associated with productive type, which highest in type line WG (ΔрН=-0.573±0.053 compared ΔрН=-0.299±0.059 А, P<0...

This study aimed to evaluate the effects of commercial plant extract mixture added laying quail rations on performance, egg quality, plasma antioxidant and blood biochemical parameters. In this experiment, 160 Japanese quails aged twelve weeks were equally divided into four groups 40 (five replicates 8 each). The included a control treatment with no diet additives, treatments as follows: (1) 10...

The current research was carried out to investigate the effect of diets enriched with different levels organic iron on performance, egg quality, blood haematological parameters, and serum biochemical constituents in laying quails. In study, 120 female quails at 20 weeks age were allocated 5 treatment groups 6 replicates 4 each. Experimental formed by adding 0, 50, 100, 150, 200 mg/kg (iron-glyc...

We mapped two different quail Mhc haplotypes and sequenced one of them (haplotype A) for comparative genomic analysis with a previously sequenced haplotype of the chicken Mhc. The quail haplotype A spans 180 kb of genomic sequence, encoding a total of 41 genes compared with only 19 genes within the 92-kb chicken Mhc. Except for two gene families (B30 and tRNA), both species have the same basic ...

Myoglobin has an important physiological role in vertebrates, and as the primary sarcoplasmic pigment in meat, influences quality perception and consumer acceptability. In this study, the amino acid sequences of Japanese quail and northern bobwhite myoglobin were deduced by cDNA cloning of the coding sequence from mRNA. Japanese quail myoglobin was isolated from quail cardiac muscles, purified ...

To assess the genetic diversity of domestic Japanese quail (Coturnix japonica) populations, and their genetic relationships, we examined mitochondrial DNA (mtDNA) D-loop sequences and microsatellite markers for 19 Japanese quail populations. The populations included nine laboratory lines established in Japan (LWC, Quv, RWN, WE, AWE, AMRP, rb-TKP, NIES-L, and W), six meat-type quail lines reimpo...