In a series of three experiments, we examined the hypothesis that female Japanese quail, Coturnix japonica, are motivated to form aggregations to reduce the probability of harassment by conspecific males. When in the presence of a conspecific male, female quail both sought others of their sex and remained near them. However, if no males were present, females were indifferent to or tended to avo...

Green tea leaves contain a wide range of active bio-compounds that are essential for sustainable quail intensification; however, its feed value is not known the Jumbo quail. Therefore, this study evaluated effect different levels green leaf powder (GTLP) on physiological and meat quality parameters One-week-old chicks (n = 350; 56.1 ± 2.12 g live-weight) were evenly distributed to 35 replicate ...

The objective of this study was to determine the influence housing system on physical, morphological, and mechanical properties Japanese quail (Coturnix coturnix japonica) eggs. A total 240 eggs were collected from quails kept in two different systems: cage aviary (120 each system). Eggs significantly (P<0.05) heavier than (11.85 g vs. 10.93 g), also longer, wider had larger geometric mean diam...

BACKGROUND Cytochrome P450 1 (CYP1) genes are biomarkers for aryl hydrocarbon receptor (AHR) agonists and may be involved in some of their toxic effects. CYP1s other than the CYP1As are poorly studied in birds. Here we characterize avian CYP1B and CYP1C genes and the expression of the identified CYP1 genes and AHR1, comparing basal and induced levels in chicken and quail embryos. METHODOLOGY/...

Reproductive performance of many avian species, including Japanese quail, is reported to be modulated by specific temporal phase relation of serotonergic and dopaminergic oscillations. Accordingly, it has been shown that the serotonin precursor 5-HTP and the dopamine precursor l-DOPA given 8 h apart induce gonadal suppression and given 12 h apart lead to gonadal stimulation, while other tempora...

Brachiocephalic arteries in quails are large arteries which are arising separately from the aortic arch. The aim of the present study was to determine the histomorphometric aspects of brachiocephalic arteries in the Japanese quail. The different layers of the brachiocephalic artery were studied quantitatively in 10, 20 and 60 days-old Japanese quail; (n = 6) and both sexes. Luminal diameter, th...

Aulonocephalus pennula is a nematode living in the caeca of the wild Northern bobwhite quail (Colinus virginianus) present throughout the Rolling Plains Ecoregion of Texas. The cytochrome oxidase 1 (COX 1) gene of the mitochondrial genome was used to screen A. pennula in wild quail. Through BLAST analysis, similarity of A. pennula to other nematode parasites was compared at the nucleotide level...

Quail litter (QL), a combination of accumulated quail manures, feathers, spilled feed and bedding materials, is a potential plant fertilizer, ruminant feed ingredient and other value-added applications. In general, utilization of this litter has been limited to within a few kilometers of quail farms, because it has low density. Pelleting is one possible way to enhance storage, transportation an...

The northern bobwhite (Colinus virginianus) is an ecologically and economically important avian species. At the present time, little is known about the microbial communities associated with these birds. As the first step to create a quail microbiology knowledge base, the current study conducted an inventory of cultivable quail tracheal, crop, cecal, and cloacal microbiota and associated antimic...

The aim of the present study was to elucidate the origin of the striated muscle cells in the avian iris. For this purpose we adopted interspecific transplantation between quail and chick embryos because quail cells can be used as biological markers in this system. We transplanted isotopically and isochronically (6- to 7-somite stage) a fragment of a dorsal part of the quail neural anlage into a...