In order to estimate genetic parameters for body weights and carcass yield of 2 strains of quails; 32 pairs of Japanese quail (coturnix Japanese) and 26 pairs of range quail (coturnix ypisilophorus) randomly were selected from the base populations of parents. Produced progenies (650 birds) were used to estimate the genetic parameters of body weights and carcass characteristics traits. Body weig...

The mechanics of avian take-off are central to hypotheses about flight evolution, but have not been quantified in terms of whole-body movements for any species. In this study, I use a combination of high-speed video analysis and force plate recording to measure the kinematics and mechanics of ground take-off in the European starling Sturnis vulgaris and the European migratory quail Coturnix cot...

The aim of this investigation was to study the histological structure of the hepatic bile ducts in common quail (Coturnix coturnix). Twenty clinically healthy adult female and male common quail were used. Histological results showed that the hepatic bile ducts possessed tunica mucosa, tunica muscularis and tunica serosa. The tunica mucosa forms some simple folds which appeared to be irregularly...

Diversity is often thought to create conflict and harm economic institutions. We hypothesize, however, that the impact of diversity is conditional on political institutions, and may be negative in some settings but positive in others, due to differences in the nature of rent seeking in different regimes. To test this hypothesis, we estimate the impact of diversity on economic freedom, condition...

subulura brumpti infection was observed in japanese quails and caused heavy production loss up to 10%. gross lesions were confined to caecum of the affected birds. pathological changes suggestive of acute cecal hemorrhagic enteritis were recorded. closer observation of the cecal loop revealed wavy movement with thousands of tiny worms. based on morphometry, the worms were identified as s. brump...

Up to date 2 species of Mallophaga have been reported from birds in Iran. Further studies in Tehran area showed that the wild birds harbour more lice. The following species of Mallophage are reported for the first time from birds in Iran. Anaticola crassicornis from Anas clypeata, Laemobothrion maximum from Falco tinnunculus Laemobothrion sp. from Aquila chrysaetos Alcedoecus annulatus from Alc...

The effects of oviduct removal, oviduct displacement or sham-operation were studied in Japanese quail (Coturnix coturnix japonica). No significant differences were observed between the treatments for body weight, number of follicles larger than or equal to 6 mm diam., or number of ruptured follicles. Retraction or removal of the oviduct resulted in similar significant increases (P less than 0.0...

Name of sequence. Quail calpain cDNA. Species. Coturnix coturnix japonica. Origin of clone. Six primers (primers 1, 2, 3, 4, 5, and 6) complementary to highly conserved regions of the / m-calpain cDNA in skeletal muscle of chicken sequence were designed from chicken calpain 80-K subunit cDNA sequence (Ohno et al., 1984) and used in a reverse transcriptase polymerase chain reaction to amplify a ...