the japanese quail has been utilized as a research species in establishing the genetic relationships that may also be present in other species. divergent phenotypic selection for 4-wk bw was conducted for three generations in high (hw) and low (lw) lines. within each line, 50 females and 25 males were selected among 600 birds, based on 4-wk bw. mean bw at 4 wk of age in the base generation was ...

To determinate the effect of chromium-methionine level in diet on hatchability of Japanese quail in dry tropic weather under temperaturecontrolled in summer season, a completely randomized design experiment was conducted. Thousand two hundred eighty Japanese quail (960 females and 320 males), they were divided in 160 groups of eight (six females and two males), and were allocated in wire cages ...

Since cinnamon has vitamins and minerals in addition to antioxidants compounds in its chemical composition studies have shown the potential of cinnamon supplementation on some important characteristics in the performance of birds. Thus, this study was conducted under the hypothesis that the inclusion of cinnamon in the laying quail diet could influence the performance of the birds through the e...

The quail raising in Brazil has increased through the last years and the incubation procedures are important to maintenance and improvement of quail egg production. To obtain a sufficient number of eggs to fill an incubator, eggs are usually accumulated in storage over a period from 1 day up to 3 weeks before incubation. The objective of this research was to verify the effect of egg storage on ...

We investigated participation of the brain serotonergic system in food intake control by using oral and systemic administration of serotonin precursors in quails (Coturnix japonica). Dietary supplemental tryptophan (0.1-50.0 g/kg) provoked a dose-dependent inhibition of food intake during a 5-h observation period, which persisted up to 24 h for doses of 30.0 and 50.0 g/kg. Normally fed and fast...

This study examined the comparative utilization of 30% inclusion levels of three vegetable protein sources [Groundnut Cake (GNC); Soybean Meal (SBM) and Cotton Seed Cake (CSC)] in the diets of growing and laying Japanese quails. The findings showed no significant variations (P>0.05) on feed intake, weight gain and feed/gain ratio during the growing period among the vegetable protein sources fed...

The Japanese quail has been utilized as a research species in establishing the genetic relationships that may also be present in other species. Divergent phenotypic selection for 4-wk BW was conducted for three generations in high (HW) and low (LW) lines. Within each line, 50 females and 25 males were selected among 600 birds, based on 4-wk BW. Mean BW at 4 wk of age in the base generation was ...

We investigated the role of 5-HT2C receptors and serotonergic transmission in the feeding behavior control of quails. Administration of serotonin releaser, fenfluramine (FEN) and 5-HT2C agonists, mCPP and MK212, 1.0 and 3.3 mg/Kg induced significant inhibition of food intake in previously fasted fowls (0.71 +/- 0.18 g and 0.47 +/- 0.2 g; 0.49 +/- 0.22 g and 0.48 +/- 0.29 g; 0.82 +/- 0.13 g and ...