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Effect of zinc supplementation on quality parameters of Japanese quail eggs
Contexts in source publication
Context 1
... the present study relatively lower mean level weight of eggs was observed in experimental group (with Zn supplementation) in comparison to control group on 35 day of experiment (10.38 g; 10.79g)respectively. As shown in Table 1, minimal differences in weight of eggs were found in the control and experimental group on 58 day of experiment (Table 1). It was obtained the coefficient of variation 17.26%; 11.76%, respectively. ...
Context 2
... the present study relatively lower mean level weight of eggs was observed in experimental group (with Zn supplementation) in comparison to control group on 35 day of experiment (10.38 g; 10.79g)respectively. As shown in Table 1, minimal differences in weight of eggs were found in the control and experimental group on 58 day of experiment (Table 1). It was obtained the coefficient of variation 17.26%; 11.76%, respectively. ...
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This a review article of CdO material. It should not be used illegally or copied without the permission.
C 28 H 22 CdN 4 O 6 , triclinic, P 1̄ (no. 2), a = 8.8463(3) Å, b = 9.0275(3) Å, c = 15.6752(5) Å, α = 78.033(3)°, β = 88.988(3)°, γ = 84.843(3)°, V = 1219.66(7) Å ³ , Z = 2, R gt ( F ) = 0.0333, wR ref ( F ² ) = 0.0732, T = 291 K.
Citations
... Karimi et al. (2017) reported that in male Japanese quail exposed to Cd-supplemented diet at the rate of 100 mg/kg liver vacuolar degeneration and hepatocytes necrosis were increased. There are also several reports demonstrating the negative impact of Cd on egg production and the internal and external quality of quail eggs (Koréneková et al., 2005(Koréneková et al., , 2007Skalicka et al., 2008). ...
... Eggshell construction and quality are dependent on minerals such as calcium and zinc, both of which are antagonist of Cd (Koréneková et al., 2005). In rodents, higher dietary intakes of iron, calcium, manganese and zinc can obstruct Cd absorption by directly competing with Cd for access to the mineral transporters and downregulating expression of these transporters in the intestine (Martin et al., 2006;Rama & Planas, 1981). ...
The demand for quail eggs has been increased over the last decade due to its beneficial nutritional quality characteristics; however, different nutritional and environmental stressors adversely impact the quality of the produced eggs. This study was conducted to investigate whether dietary supplementation of coenzyme Q10 (CoQ10) could mitigate the negative impact of cadmium (Cd) administration on egg quality and liver histopathology. A total of 162 six-week-old laying Japanese quail (Coturnix japonica) were randomly allotted into three experimental groups. Treatments were as follows: (1) negative control (NC): feeding basal diet; (2) positive control (PC): feeding basal diet and Cd administration; and (3) CdQ10: feeding basal diet supplemented with CoQ10 (900 mg/kg diet) and Cd administration. Cadmium (10 mg/kg BW) was subcutaneously administrated at 10 and 11 weeks of age (woa). Feed conversion ratio (FCR), egg production, egg mass, mortality rate, Cd residue in egg, liver histopathology, and some internal and external egg quality indices were evaluated. Administration of Cd increased FCR in the PC group, but supplementation of CoQ10 partially ameliorated the impact of Cd on FCR (p < 0.05). Cadmium administration decreased both egg production and egg mass; however, CoQ10 supplementation partially mitigated these adverse effects of Cd injection in the CdQ10 compared to the PC group (p < 0.05). Cadmium decreased eggshell thickness and Haugh unit in PC quail compared to both NC and CdQ10 quail (p < 0.05). Moreover, egg yolk colour intensity was enhanced by CoQ10, where a* and b* indices were higher in CdQ10 compared to PC (p < 0.05). In conclusion, the current results demonstrate the beneficial effects of dietary CoQ10 supplementation on liver histopathology and some egg quality indices of Cd-challenged quail.
... However, Stahl et al., (1986) found that supplementing diets of laying hens with Zn had no effect on egg production, feed intake, and feed conversion ratio (FCR). Japanese quails are particularly sensitive to dietary Zn deficiency, and it has found that Zn is necessary for their normal growth, feathering and normal skeletal development (Koréneková et al., 2005). Therefore, quails may benefit from with Zn supplements. ...
We investigated the effects of dietary supplementation of zinc (ZnO; 0, 40, 80, 120 and 160 mg/kg) and Vit E (α-tocopheryl acetate; 0 and 40 IU/kg) on egg production, egg quality and Zn content of egg fractions and tissues in Japanese quails. Using a 5 × 2 factorial design, a total of 960 Japanese quails (Coturnix coturnix japonica) at day 70 of age were housed in cages and randomly assigned into one of ten experimental treatments, each with four replicates of 24 birds (16 females and eight males per replicate). Egg production was greater (P < 0.05) in birds fed diets containing 160 mg/kg of zinc (Zn) than those fed basal diet (control diet), but vitamin E supplementation had no effect on egg production. Quails fed basal diet supplemented with 80 mg/kg Zn showed a significant improvement in their feed conversion ratio compared to the other birds. Birds supplemented with 80, 120 and 180 mg/kg Zn had stronger egg shells than those fed the control diet, while shell thickness was lower in birds supplemented with 0 and 40 mg/kg of Zn (P < 0.05). Enrichment of Zn in egg yolk increased when birds received diets supplemented with 80, 120 and 160 mg/kg Zn compare to control group (P < 0.05). Supplementation of diet with Zn increased serum concentration of Zn when fed to quails at 120 mg/kg (P < 0.05). Thigh muscle, thigh bone, and liver Zn concentrations increased with concentration of Zn supplementation (P < 0.05). Vitamin E supplementation had no effects on laying performance, egg shell quality, and Zn concentrations in egg fractions and tissues of Japanese quail.
