this study has been carried out to investigate the effect of short-term divergent selection for 4-wk body weight on growth curve parameters and carcass components in japanese quail. quail lines utilized were two divergently selected for high (hw) and low (lw) 4-wk body weight (bw) as well as a line as control (c). the results of the study indicated that quails in hw line had heavier bw than tho...

In present study, two trials had been conducted to evaluate the effects of Spirulina platensis (SP) on growth performance, carcass characteristics, egg quantity and quality traits, and immunity response of Japanese quails. In trial 1, a total number of 180 one-day-old Japanese quails were randomly assigned into 6 groups, 3 replicates with 10 quail chicks per replicate. Experimental die...

The intraocular pressure of imperfect albino mutant quails with a sex-linked recessive gene was measured by using a cannulating method, and morphological changes of the iridocorneal angle were observed with a gonioprism. Albino mutant quails were characterized by an elevated intraocular pressure and lens enlargement at 6 mo after hatching. Initially the iridocorneal angle opened and eventually ...

The present study describes clinical, virological, histopathological, immunohistochemical and electron microscopic findings of pox infection encountered in a quail flock. Lesions consisted of single or multiple nodules with a crust in variable size of gray to yellow or dark brown discoloration on the comb, eyelids, and the other poorly feathered areas of the body. Histopathological changes cons...

Response of Japanese quails to an inoculation of Schmidt-Ruppin strain of Rous sarcoma virus (SR-RSV) was examined. The quails were as susceptible as chick embryo cells to the infection of SR-RSV. The tumors induced in the quails contained a significant amount of infectious virus and avian leukosis group-specific CF antigen at early stages of 1 to 3 weeks after inoculation, but they turned to b...

Overview: The potential power of embryonic and fetal inter-species mixtures became clear about a decade ago in a series of dramatic experiments in which small sections of brains from developing quails were taken and transplanted into the developing brains of chickens. The resulting chickens exhibited vocal trills and head bobs unique to quails, proving that the transplanted parts of the brain c...

PURPOSE To investigate whether retinal cell death observed in an avian glaucoma-like disorder occurs by apoptosis and whether an increase in excitotoxic amino acid concentration in the vitreous humor is associated temporally with cell death in the retina. METHODS Presumptive retinal apoptotic nuclei were identified by histochemical detection of DNA fragmentation (by TdT-dUTP terminal nick-end...