The purpose of this study was to explore the role of L-5-hydroxytryptophan (L-HTP) and its relationship with the renin-angiotensin system (RAS) on the drinking behavior in Japanese quails. Normally-hydrated quails that received injections of L-HTP (12.5; 25 and 50 mg.kg-1) by the intracoelomic route (ic) expressed an increase in water intake, which was inhibited by captopril, an angiotensin con...

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 ...

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...

In this study parasitic infection of bobwhite and Japanese quails were clarified in farms of Garmsar city in province of Semnan. Forty quails from two breeds randomly were selected and they examined to identify all internal and external parasites .Finding was shown that five percent of the quails examined harbored one or more species of helminthes. Two cestodes, Raillietina echinobothrida and R...

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...

The temporal expression of estrogen receptor (ER)-α and ER-β mRNA was examined in male Japanese quails. Femurs of quails receiving 17β-estradiol underwent RT-PCR and histochemical analysis 1 to 15 days after treatment. Untreated quails were used as controls (day 0). Between days 0 and 5, cells lining the bone endosteal surface differentiated into osteoblasts, which in turn formed medullary bone...

The effect of microgravity on functional development of the small intestine of Japanese quails incubated for 2-3 d and hatched on the orbital station MIR was examined. After 5 d of space flight duodenal and jejunal alkaline phosphatase (AP) activity of the experimental group was compared with the AP activity in quails of the same age hatched on the Earth (laboratory controls). Short-term microg...

This study was conducted to investigate the effects of garlic powder on the performance, egg traits, egg cholesterol and serum parameters of laying Japanese quails. One hundred and twenty 10-weeks-old quails were allocated to four dietary treatments. Quails were caged individually and fed diets supplemented with 0 (control), 1, 2, 4% garlic powder for 12 weeks. There were significant (P < 0.05)...

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...

Aengwanich, W. and Chinrasri, O. Effect of dexamethasone on differential white blood cell counts and heterophil / lymphocyte ratio in Japanese quails (Coturnix coturnix japonica) Songklanakarin J. Sci. Technol., 2003, 25(2) : 183-189 Laying Japanese quails (n = 60), 30 weeks of age reared at the experimental laboratory unit of the Faculty of Technology, Maha Sarakham University, Maha Sarakham p...