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45 results for “Japanese quail”
Figure 4 in Replacement level of rubber seed cake for soybean meal on the growth of Japanese quail
Figure 4. Survivability (%) of the growing quail under different dietary treatments (D , D , D , D and D = Treatments, see Table 1).
Figure 6 in Replacement level of rubber seed cake for soybean meal on the growth of Japanese quail
Figure 6. Regression for the equation of, y = a + bx; where, y= feed intake, x= the inclusion rate of RS in the diet in place of soybean meal, and b= regression co-efficient and a= intercept. D0= Diet containing 20% soybean meal and 4% soybean oil (control diet), D1= Diet, where 12.5% of soybean meal and 25% of soybean oil has been replaced by RS; D2 = Diet, where 25% of soybean meal and 50% of soybean oil has been replaced by RS; D3 = Diet, where 37.5% of soybean meal and 75% of soybean oil has been replaced by RS; D4 = Diet, where 50% of soybean meal and 100% of soybean oil has been replaced by RS.
Data from: Sex-specific effects of dietary restriction on physiological variables in Japanese quails
<p>Nutritional limitation is a common phenomenon in nature that leads to trade-offs among processes competing for limited resources. These trade-offs are mediated by changes in physiological traits such as growth factors and circulating lipids. However, studies addressing the sex-specific effect of nutritional deficiency on these physiological variables are limited in birds. We used dietary restriction to mimic the depletion of resources to various degrees and investigated sex-specific effects on circulating levels of insulin-like growth factor 1 (IGF-1) and triglycerides in Japanese quails (<em>Coturnix japonica</em>) subjected to <em>ad libitum</em>, 20%, 30% or 40% restriction of their daily requirement, for two weeks. We also explored the association of both physiological variables with body mass and egg production. While dietary restriction showed no effects on circulating IGF-1, this hormone exhibited a marked sexual difference, with females having 64.7% higher IGF-1 levels than males. Dietary restriction significantly reduced plasma triglyceride levels in both sexes. Females showed more than six-fold higher triglyceride levels than males. Triglyceride levels were positively associated with body mass in females while showed not association in males. Overall, our findings revealed sex-specific expression of physiological variables under dietary restriction conditions, which coincide with body size.</p>
Figure 2 in Replacement level of rubber seed cake for soybean meal on the growth of Japanese quail
Figure 2. Kernel of rubber seeds.
Figure 1 in Replacement level of rubber seed cake for soybean meal on the growth of Japanese quail
Figure 1. Raw rubber seeds from the plantation.
Dietary fat supplements influence weight gain and egg production but not offspring sex ratios in Japanese quail
<p>Sex ratio theory suggests that females should bias offspring sex ratios based on maternal condition and the availability of critical food resources. Work in birds indicates that females do, indeed, bias sex ratios according to maternal condition and food quality and quantity. Yet it is unknown whether these sex ratio skews occur due to fluctuations in particular micro- or macro-nutrients, caloric content overall, or even the perception of food availability. We hypothesized that dietary fats may drive biases in offspring sex ratios, because measures of maternal condition often reflect fat reserves, and fats are critical for the process of egg-laying in birds. To test this, we provided breeding Japanese quail, a species that biases sex ratios in response to maternal condition, with either a control breeding diet or a diet supplemented with two oils (safflower oil and flaxseed oil). These oils were chosen for their high omega-3 and omega-6 fatty acid content as well as their importance in mammalian sex allocation. We then measured influences of these diets on the sex ratio of offspring, the change in maternal weight, and the laying rates of female quail. The dietary oil supplements increased weight gains in quail but decreased the number of eggs laid during the experiment. There was no influence of the oil supplements on offspring sex ratios. This indicates that fat may not be a macro-nutrient involved in the process of sex ratio adjustment in quail.</p>
A custom-made AAV1 variant (AAV1-T593K) enables efficient transduction of Japanese quail neurons in vitro and in vivo
<p><span>The widespread use of rodents in neuroscience has prompted the development of optimized viral variants for transduction of brain cells, <em>in vivo</em>. However, many of the viruses developed are less efficient in other model organisms, with birds being among the most resistant to transduction by current viral tools. Resultantly, the use of genetically-encoded tools and methods in avian species is markedly lower than in rodents; likely holding the field back. We sought to bridge this gap by developing custom viruses towards the transduction of brain cells of the Japanese quail. We first develop a protocol for culturing primary neurons and glia from quail embryos, followed by characterization of cultures via immunostaining, single-cell mRNA sequencing, patch clamp electrophysiology and calcium imaging. We then leverage the cultures for the rapid screening of various viruses, only to find that all yielded poor to no infection of cells <em>in vitro</em>. However, few infected neurons were obtained by AAV1 and AAV2. Scrutiny of the sequence of the AAV receptor found in quails led us to rationally design a custom-made AAV variant (AAV1-T593K; AAV1*) that exhibits improved transduction efficiencies <em>in vitro</em> and <em>in vivo</em> (eight- and five-fold, respectively). Together, we present a unique culturing method, transcriptomic profiles of quail's brain cells and a custom-tailored AAV1 for transduction of quail neurons <em>in vitro </em>and<em> in vivo.</em></span></p>
Data from: Unpredictability and adaptive responses to dietary variability in Japanese quail
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Data from: Sex-specific effects of dietary restriction on physiological variables in Japanese quails
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Dietary fat supplements influence weight gain and egg production but not offspring sex ratios in Japanese quail
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A custom-made AAV1 variant (AAV1-T593K) enables efficient transduction of Japanese quail neurons in vitro and in vivo
Open the record for dataset details and reuse information.
Female preference and adverse developmental effects of glyphosate-based herbicides on ecologically relevant traits in Japanese quail
<p>Controversial glyphosate-based herbicides (GBHs) are the most frequently used herbicides globally. An increasing number of studies have identified GBH residues in soil, water and even human food that may expose non-target organism including wildlife, livestock, and humans to health risks. After a heated debate, European Union allowed the use of GBHs to continue until 2022, after which their risks will be re-evaluated. Thus, decision makers urgently need scientific evidence on GBH residues and their possible effects on ecosystems. An important, yet neglected, aspect is to assess whether animals show preference or avoidance for GBH contaminated food, as it can influence the likelihood of adverse health effects in wildlife. Here, using Japanese quails (<i>Coturnix japonica</i>) as our model, we show that females preferred GBH-contaminated food compared to control food. In females, exposure to GBHs caused delayed plumage development, and GBH residues were present in eggs, muscles and liver. These results indicate that female preference is not adaptive, potentially exposing non-target animals to greater risk of adverse effects of GBHs in natural and agricultural environments. Our results on tissue residues suggest that further studies are needed to understand the risks of such residues in the food chain.</p>
Data from: Plasticity and the structural characteristics of personality traits in captive-reared Japanese quail during ontogeny
<p>This dataset contains the measurements of different personality traits in a study on Japanese quail.</p>
Heat stress effects on Japanese quail production and iSTAT
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Data from: Post-hatch heat warms adult beaks: irreversible physiological plasticity in Japanese quail
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Female preference and adverse developmental effects of glyphosate-based herbicides on ecologically relevant traits in Japanese quail
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Dataset of prenatal thyroid hormones manipulation in Japanese quails
<p>This is the dataset of an experiment conducted on Japanese quails in which we elevated yolk thyroid hormones. This dataset contains all the responses measured in this experiment.</p>
Data from: Neural activation following offensive aggression in Japanese quail
Aggression is a fundamental part of animal social behaviour. In avian species, little is known about its neural representation. In particular, neural activity following offensive aggression has not been studied in detail. Here, we investigated the patterns of brain activation using immediate-early gene (IEG) expression in male Japanese quail that showed pronounced aggressive behaviours during a 30 min male-male interaction and compared them to those of males that did not interact with a conspecific. In aggressive males, we found a massive induction of the IEG zenk in pallial brain structures such as the intermediate medial mesopallium, the caudomedial mesopallium and the intermediate medial nidopallium. To a lesser extent, activation was observed in subpallial areas such as the nucleus taeniae of the amygdala and in the medial portion of the bed nucleus of the stria terminalis. Our data suggest that the modulation of aggressive behaviour involves the integration of multisensory information.
Data from: Constant and cycling incubation temperatures have long-term effects on the morphology and metabolic rate of Japanese quail
Incubation temperature can have profound effects on growth and development of embryos and young birds. However, few studies have examined the role that cycling incubation temperature may play in phenotypic variation and whether these effects persist to adulthood. We incubated Japanese quail eggs at control temperatures (37.5°C), at low temperatures (36.0°C), and under a cyclical treatment that maintained the same average temperature as the low treatment (36.0°C) with high temperatures that were the same as the control (37.5°C) and low temperatures that still allowed for development of the embryo (28.0°C). Individuals in the low treatment group were smaller in mass and size than individuals in the control group but had an increased basal metabolic rate relative to individuals in the cyclical treatment group. Temperature cycling offset the effects of low incubation temperatures on metabolic rate and embryonic development but not the effects on adult mass and size. Although Japanese quail are sexually size dimorphic, with females larger than males, we could detect no evidence of sex-specific sensitivity to suboptimal incubation temperatures. These results highlight the importance of incubation temperature and pattern as sources of morphological and physiological variation of adult birds.
Figure 5 in Replacement level of rubber seed cake for soybean meal on the growth of Japanese quail
Figure 5. Feed intake of the bird under different dietary treatment at different ages D 0, D 1, D 2, D 3 and D 4 = Treatments, see Table 1.
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International Brain Laboratory public data
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OpenNeuro
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