Alagawany Mahmoud, Qattan Shaza Y A, Attia Youssef A, El-Saadony Mohamed T, Elnesr Shaaban S, Mahmoud Mohamed A, Madkour Mahmoud, Abd El-Hack Mohamed E, Reda Fayiz M
Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
Biological Sciences Department, Microbiology, Faculty of Science, King Abdulaziz University, Jeddah 80203, Saudi Arabia.
Animals (Basel). 2021 Oct 21;11(11):3027. doi: 10.3390/ani11113027.
Nano-minerals are used to enhance mineral bioavailability, which helps improve animal growth and health. The use of chemical nano-selenium (Che-SeNPs) has lately attracted great scientific interest, mainly due to its potential benefits for poultry. The current study was conducted to investigate the impact of the dietary supplementation of Che-SeNPs on the growth performance, carcass traits, blood constituents, antioxidant status, immunity, and gut microbiota of Japanese quails. A total of one week-old 180 Japanese quails were randomly distributed into four equal groups, and each group consisted of 45 unsexed birds with five replications (nine birds each). The first group was fed a basal diet without supplementation (0 g/kg Che-SeNPs), and the second, third, and fourth groups were fed diets containing 0.2, 0.4, and 0.6 g/kg Che-SeNPs, respectively. The results showed that the dietary supplementation of Che-SeNPs significantly ( < 0.0001) increased body weight, body weight gain, and feed conversion ratio, but decreased feed intake ( < 0.0001) compared to the control group. The highest values of growth performance were recorded in the group fed 0.4 g Che-SeNPs g/kg feed. Che-SeNPs levels did not affect the carcass traits, relative organs (except liver), or blood hematology (except platelet count and hemoglobin level) of quails. Plasma total protein, albumin, aspartate amino transferase (AST), and urea values were not affected by dietary Che-SeNPs, but alanine aminotransferase and lactate dehydrogenase values declined. Globulin and creatinine values were linearly increased with the inclusion of Che-SeNPs (0.4 and 0.6 g/kg) in quail diets compared to the control. The supplementation of Che-SeNPs in quail diets significantly improved ( < 0.05) the plasma lipid profile and activities of antioxidant enzymes compared to the control group. Immunoglobulin G values of Che-SeNPs (0.4 and 0.6 g/kg) were higher ( < 0.05) than those in the control group. The groups fed diets supplemented with Che-SeNPs showed lower ( < 0.0001) total bacterial count, total yeast and molds count, , , spp., and spp. colonization, and higher ( = 0.0003 and 0.0048) lactic acid bacteria counts than those in the control group. In conclusion, Che-SeNPs supplemented up to 0.4 g/kg can improve the performance, lipid profile, antioxidant indices, and immunity, as well as decrease intestinal pathogens in quails during the fattening period (1-5 weeks of age).
纳米矿物质被用于提高矿物质的生物利用率，这有助于促进动物生长和健康。化学纳米硒（Che-SeNPs）的应用近来引起了科学界的极大兴趣，主要是因为其对家禽可能具有的益处。本研究旨在调查日粮中添加Che-SeNPs对日本鹌鹑生长性能、胴体性状、血液成分、抗氧化状态、免疫力和肠道微生物群的影响。总共180只1周龄的日本鹌鹑被随机分为四组，每组45只未区分性别的鹌鹑，分为五个重复（每组9只）。第一组饲喂不添加（0 g/kg Che-SeNPs）的基础日粮，第二、第三和第四组分别饲喂含0.2、0.4和0.6 g/kg Che-SeNPs的日粮。结果表明，与对照组相比，日粮中添加Che-SeNPs显著（<0.0001）增加了体重、体重增加和饲料转化率，但降低了采食量（<0.0001）。在饲喂0.4 g Che-SeNPs/kg饲料的组中生长性能达到最高值。Che-SeNPs水平对鹌鹑的胴体性状、相对器官（肝脏除外）或血液血液学指标（血小板计数和血红蛋白水平除外）没有影响。血浆总蛋白、白蛋白、天冬氨酸转氨酶（AST）和尿素值不受日粮中Che-SeNPs的影响，但丙氨酸转氨酶和乳酸脱氢酶值下降。与对照组相比，在鹌鹑日粮中添加Che-SeNPs（0.4和0.6 g/kg）时，球蛋白和肌酐值呈线性增加。与对照组相比，在鹌鹑日粮中添加Che-SeNPs显著改善（<0.05）了血浆脂质谱和抗氧化酶活性。Che-SeNPs（0.4和0.6 g/kg）组的免疫球蛋白G值高于（<0.05）对照组。饲喂添加Che-SeNPs日粮的组的总细菌计数、总酵母和霉菌计数、、、菌属和菌属定植数较低（<0.0001），乳酸菌计数高于（=0.0003和0.0048）对照组。总之，在育肥期（1至5周龄），添加高达0.4 g/kg的Che-SeNPs可以提高鹌鹑的生产性能、脂质谱、抗氧化指标和免疫力，并减少肠道病原体。
