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11.
This study was conducted to determine the effects of vitamin E and selenium (Se) on lipid peroxidation (MDA), serum and liver
concentration of antioxidant vitamins, and some minerals of Japanese quails reared under heat stress (34°C). One hundred twenty
10-d-old Japanese qualis (60 males, 60 females) were randomly assigned to 4 treatment groups, 3 replicates of 10 birds each.
The experiment was designed in a 2×2 factorial arrangement using two levels of vitamin E (125 and 250 mg/kg of diet) and two
levels of selenium (0.1 and 0.2 mg/kg of diet). Greater dietary vitamin E and selenium inclusions resulted in a greater (p=0.001) serum vitamin E and vitamin A, but lower (p=0.001) MDA concentrations. Liver vitamin E and vitamin A concentrations increased (p=0.001) and MDA concentrations decreased (p=0.001) when both dietary vitamin E and selenium increased. No interactions between vitamin E and selenium were detected (p≥0.11) for any parameters. Increasing both dietary vitamin E and selenium caused an increase in serum concentrations of Fe
and Zn (p=0.001), but a decrease in serum concentration of Cu (p=0.001). Results of the present study showed that dietary vitamin E and selenium have synergistic effects and that supplementing
a combination of dietary vitamin E (250 mg/kg of diet) and selenium (0.2 mg/kg of diet) offers a good management practice
to reduce heat stress-related depression in performance of Japanese quails. 相似文献
12.
《Archives of animal nutrition》2013,67(6):449-451
Abstract A ten-generation experiment with growing and laying quails were carried out to test diets with 40 (starter) or 50% (grower, layer) isogenic or transgenic (Bt 176) corn. Feeding of diets containing genetically-modified corn did not significantly influence health and performance of quails nor did it affect DNA-transfer and quality of meat and eggs of quails compared with the isogenic counterpart. 相似文献
13.
B Kocaoğlu Güçlü Asst. Prof K. M. İşcan F Uyanik M Eren A Can Ağca 《Archives of animal nutrition》2013,67(3):255-263
This study was conducted to investigate the effects of increasing levels of alfalfa meal in the diet of laying quails on egg production, feed consumption, feed efficiency, egg quality, egg yolk cholesterol and selected serum parameters. In this study, 192, 10-week old quails (Coturnix coturnix japonica) were evenly distributed to four groups with four replicates of 12 quails each. The control group was fed a basal diet containing 0% alfalfa meal and the remaining groups received 3, 6 or 9% alfalfa meal for 12 weeks. Live weight, feed consumption, and egg production were recorded and feed efficiency were calculated. Eggs were examined for interior and exterior quality and egg yolk cholesterol content. At the end of the experiment, blood samples were collected and sera were analysed for serum Ca, inorganic P (Pi), Mg, triglycerides and total cholesterol. Any level of alfalfa meal had no effect on live weight, egg production, feed consumption, feed efficiency, egg weight, and egg yolk index. Six percent and 9% alfalfa meal increased specific gravity of whole egg and eggshell thickness as well as serum Pi levels. Nine percent alfalfa meal reduced serum triglycerides, total cholesterol levels and egg yolk cholesterol content. The results of this experiment indicated that addition of 9% alfalfa meal into the laying quail diet may improve eggshell quality and reduced serum triglycerides and serum and egg yolk cholesterol without any adverse effect on performance. 相似文献
14.
Mary Babu Padma Bai Vasanthy Narayanaswami K. Lalitha Joseph K. Thomas 《Biological trace element research》1986,10(4):317-325
The effect of selenium (Se) on collagen characteristics and glutathione peroxidase (GSH-Px) activity in the skin of Japanese
quailsCoturnix coturnix japonica fed a formulated, semipurified, low-Se diet (basal) (0.05 ppm) was investigated. The quails exhibited severe Se-deficiency
symptoms and significant reduction in skin GSH-Px activity at the end of 30 d. Selenium supplementation at a 2-ppm level restored
the normal skin conditions and enhanced skin GSH-Px activity significantly. But a dietary Se level of 0.1 ppm was found to
be inadequate in restoring the general skin conditions and GSH-Px activity. A markedly low total collagen content of about
23% was observed in the skin of quails fed the basal diet, compared to 39% of total collagen content in the skin of the 2-ppm
Se-supplemented group. Molecular organization of skin collagen of quails on the basal and 0.1-ppm Se diet showed an abundance
of monomeric forms with less crosslinks, compared to the presence of polymeric forms with more crosslinks, indicating enhanced
stability in the skin collagen of quails on the 2-ppm diet. The delay in the in vitro fibril formation of collagen from the
basal and 0.1-ppm Se groups, compared to a relatively faster rate in the case of the 2-ppm Se group, indicates a disturbance
in the aggregation phenomenon of collagen. The increase in skin GSH-Px activity and concurrent increase in polymeric collagen
on increasing the dietary Se level suggest a possible role for Se in collagen metabolism. 相似文献