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Reda FM, Alagawany M, Salah AS, Mahmoud MA, Azzam MM, Di Cerbo A, El-Saadony MT, Elnesr SS. Biological Selenium Nanoparticles in Quail Nutrition: Biosynthesis and its Impact on Performance, Carcass, Blood Chemistry, and Cecal Microbiota. Biol Trace Elem Res 2024; 202:4191-4202. [PMID: 38110606 DOI: 10.1007/s12011-023-03996-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/03/2023] [Indexed: 12/20/2023]
Abstract
This study was conducted to examine the influence of dietary supplementation of biological nano-selenium (BNSe) on productive performance, hematology, blood chemistry, antioxidant status, immune response, cecal microbiota, and carcass traits of quails. In total, 180 Japanese quails (1 week old) were randomly allocated into four groups, with five replicates of nine chicks each in a complete randomized design. The 1st group was fed a control diet without BNSe, and the 2nd, 3rd, and 4th treatments were fed diets supplemented with BNSe (0.2, 0.4, and 0.6 g /kg feed, respectively). The best level of BNSe in body weight (BW) and body weight gain (BWG) parameters was 0.4 g/kg diet. Feed conversion was improved (P < 0.01) by adding BNSe in quail feed compared with the basal diet without any supplementation. The inclusion of different BNSe levels (0.2, 0.4, 0.6 g/kg) exhibited an insignificant influence on all carcass traits. The dietary addition of BNSe (0.4 and 0.6 g/kg) significantly augmented aspartate aminotransferase (AST) activity (P = 0.0127), total protein and globulin (P < 0.05), white blood cells (WBCs) (P = 0.031), and red blood cells (RBCs) (P = 0.0414) compared with the control. The dietary BNSe supplementation significantly improved lipid parameters, antioxidant and immunological indices, and increased selenium level in the blood (P < 0.05). BNSe significantly increased (P = 0.0003) lactic acid bacteria population number and lowered the total number of yeasts, molds, total bacterial count, E. coli, Coliform, Salmonella, and Enterobacter (P < 0.0001). In conclusion, adding BNSe up to 0.4 and 0.6 g/kg can boost the growth, lactic acid bacteria population number, hematology, immunological indices, antioxidant capacity, and lipid profile, as well as decline intestinal pathogens in growing quail.
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Affiliation(s)
- Fayiz M Reda
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt.
| | - Ayman S Salah
- Department of Animal Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, New Valley University, El-Kharga, Egypt
| | - Mohamed A Mahmoud
- Department of Physiology, Faculty of Veterinary Medicine, New Valley University, El-Kharga, New Valley, Egypt
| | - Mahmoud M Azzam
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024, Milan, Matelica, Italy
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Shaaban S Elnesr
- Poultry Production Department, Faculty of Agriculture, Fayoum University, Fayoum, 63514, Egypt
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Fang M, Hu W, Liu B. Effects of nano-selenium on cecum microbial community and metabolomics in chickens challenged with Ochratoxin A. Front Vet Sci 2023; 10:1228360. [PMID: 37732141 PMCID: PMC10507861 DOI: 10.3389/fvets.2023.1228360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/22/2023] [Indexed: 09/22/2023] Open
Abstract
Introduction Ochratoxin A (OTA) is a widely distributed mycotoxin. Nano-selenium (Nano-Se) is an emerging form of selenium known for its superior bioavailability, remarkable catalytic efficiency, and robust adsorbing capacity. Despite these characteristics, its impact on the microbial community and metabolomics in the cecum of chickens exposed to OTA has been infrequently investigated. This research examined the microbiota and metabolomic alterations linked to OTA in chickens, with or without Nano-Se present. Methods A cohort of 80 healthy chickens at the age of 1 day was randomly distributed into four groups of equal numbers, namely the Se cohort (1 mg/kg Nano-Se), the OTA cohort (50 μg/kg OTA), the OTA-Se cohort (50 μg/kg OTA + 1 mg/kg Nano-Se), and the control group. Each chicken group's caecal microbiome and metabolome were characterized using 16S rRNA sequencing and Liquid chromatography coupled with mass spectrometry (LC-MS) analyses. Results and discussion Our results showed that the on day 21, the final body weight was significantly reduced in response to OTA treatments (p < 0.05), the average daily gain in the OTA group was found to be inferior to the other groups (p < 0.01). In addition, Nano-Se supplementation could reduce the jejunum and liver pathological injuries caused by OTA exposure. The 16S rRNA sequencing suggest that Nano-Se supplementation in OTA-exposed chickens mitigated gut microbiota imbalances by promoting beneficial microbiota and suppressing detrimental bacteria. Moreover, untargeted metabolomics revealed a significant difference in caecal metabolites by Nano-Se pretreatment. Collectively, the dataset outcomes highlighted that Nano-Se augmentation regulates intestinal microbiota and associated metabolite profiles, thus influencing critical metabolic pathways, and points to a possible food-additive product.
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Affiliation(s)
- Manxin Fang
- College of Life Science and Resources and Environment, Yichun University, Yichun, China
- Engineering Technology Research Center of Jiangxi Universities and Colleges for Selenium Agriculture, Yichun University, Yichun, China
| | - Wei Hu
- College of Life Science and Resources and Environment, Yichun University, Yichun, China
- Engineering Technology Research Center of Jiangxi Universities and Colleges for Selenium Agriculture, Yichun University, Yichun, China
| | - Ben Liu
- College of Life Science and Resources and Environment, Yichun University, Yichun, China
- Engineering Technology Research Center of Jiangxi Universities and Colleges for Selenium Agriculture, Yichun University, Yichun, China
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Wahyono T, Wahyuningsih R, Setiyawan A, Pratiwi D, Kurniawan T, Hariyadi S, Sholikin M, Jayanegara A, Triyannanto E, Febrisiantosa A. Effect of dietary selenium supplementation
(organic and inorganic) on carcass characteristics
and meat quality of ruminants: a meta-analysis. JOURNAL OF ANIMAL AND FEED SCIENCES 2023. [DOI: 10.22358/jafs/157555/2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Bhanja SK, Rath PK, Goel A, Mehra M, Dhara SK, Paswan VK, Attia YA, Alqhtani AH, Ali ABA, Shehata AM. In ovo nano-silver and nutrient supplementation improves immunity and resistance against Newcastle disease virus challenge in broiler chickens. Front Vet Sci 2022; 9:948069. [PMID: 36187823 PMCID: PMC9523696 DOI: 10.3389/fvets.2022.948069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Silver nanoparticles (AgNPs) interact with the microbes and host immune system to protect against diseases. Fertile broiler eggs (n = 900) were allotted to six groups: un-injected control, sham (sterile water), AgNPs (50 μg), AgNPs+Amino acids (Methionine-10 mg + Arginine-25 mg), AgNPs+Vitamins (Vit B1-72μg + Vit B6-140μg), and AgNPs+Trace Elements (Zn-80 μg and Se-0.3 μg) and incubated for 18 days. On 18th embryonic day, 0.6 ml test solution was injected at the broad end of egg using 25 mm needle and transferred to hatcher. Post-hatch, half of the chicks from each group were vaccinated with Newcastle disease (ND) vaccine, and the other half were kept as unvaccinated unit and reared for 42 d with standard management practices. Hatchability, 1st and 42nd d body weight, feed intake, and feed conversion ratio were similar between treatment groups in both vaccinated and unvaccinated units. The relative weight of bursa Fabricius and thymus was similar, but spleen weight was higher (P ≤ 0.05) in AgNPs, AgNPs+Vits, and AgNPs+TEs chicks than control group. Cellular immune response (against mitogen phytohemagglutinin-P) was higher (P ≤ 0.05) in AgNPs+TEs chicks, whereas HA titer against sheep red blood cells antigen, serum IgG, IgM, and HI titer against ND vaccine was apparently higher in AgNPs+Vits group chicks than control. No clinical symptoms were observed in the vaccinated groups except for a few control birds 6 days postchallenge (PC). Three days PC, unvaccinated birds show depression, off feed, greenish diarrhea, and nasal discharge and the control group started dying. The highest cumulative infection (CI) was observed in sham (79.17%) and un-injected control (75%), but lowest in AgNPs+AAs birds (58.33%) on 3rd dpi. The CI reached 100% on 5th dpi in control groups and AgNPs, and 91.67% and 93.75% in AgNPs+TEs and AgNPs+AAs group, respectively. The AgNPs+TEs and AgNPs+AAs group birds lived for more than 90 h compared to 75 h in control groups and also had higher IL-6 and IL-2 gene expressions at 24 h PC. It was concluded that 50 μg/egg AgNPs with vitamins (B1 and B6) and trace elements (Zn and Se) improved performance, but AgNPs with trace elements and amino acids enhanced immune response and resistance against vND virus challenge in broilers.
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Affiliation(s)
- Subrat Kumar Bhanja
- ICAR-Central Avian Research Institute, Bareilly, UP, India
- *Correspondence: Subrat Kumar Bhanja
| | | | - Akshat Goel
- ICAR-Central Avian Research Institute, Bareilly, UP, India
| | - Manish Mehra
- ICAR-Central Avian Research Institute, Bareilly, UP, India
| | - Sujoy K. Dhara
- ICAR-Indian Veterinary Research Institute, Bareilly, UP, India
| | - Vinod K. Paswan
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, India
| | - Youssef A. Attia
- Department of Animal and Poultry Production, Faculty of Agriculture, Damanhour University, Damanhour, Egypt
| | - Abdulmohsen Hussen Alqhtani
- Animal Production Department, Food and Agriculture Sciences College, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed B. A. Ali
- Department of Animal and Veterinary Science, Clemson University, Clemson, SC, United States
| | - Abdelrazeq M. Shehata
- Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
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Li L, Liu Z, Quan J, Sun J, Lu J, Zhao G. Comprehensive proteomic analysis to elucidate the anti-heat stress effects of nano-selenium in rainbow trout (Oncorhynchus mykiss). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113736. [PMID: 35689887 DOI: 10.1016/j.ecoenv.2022.113736] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/29/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
Because of the continuous intensification of global warming, extreme climate fluctuations, and high-density farming, cold-water rainbow trout (Oncorhynchus mykiss) are exposed to conditions of heat stress, which has severely impacted their survival and yield. Nano-selenium (nano-Se) shows higher biological activity and lower toxicity and has emerged as an ideal and ecological Se formulation. Herein rainbow trout were fed either a basal diet (control group) or basal diet plus 5 mg/kg nano-Se (treatment group). Samples were collected before (18 °C for 9 days; CG18, Se18) and after (24 °C for 8 h; CG24, Se24) heat stress. The DIA/SWATH approach was then applied to compare changes at the proteome level. We found 223 and 269 differentially abundant proteins in the CG18-CG24 and Se18-Se24 groups, respectively, which mainly included apoptosis-, heat stress-, and lipid-related proteins. In comparison with the CG18-CG24 group, the Se18-Se24 group showed higher abundance of molecular chaperone, such as Hsp70, Hsp90a.1, Hspa8, Hsp30, DNAJA4, Dnajb1, Bag2 and Ahsa1; on nano-Se supplementation, the heat stress-induced decline in the abundance of the selenoprotein MsrB2 was partially restored. Furthermore, nano-Se supplementation downregulated the abundance of lipid-related (CYP51, EBP, DHCR7, DHCR24, and APOB) and pro-apoptotic (caspase-8 and Bad) proteins. Protein-protein interaction analyses suggested that nano-Se inhibits apoptosis by upregulating the expression of Hsp70, Hsp90a.1, Hspa8, and Dnajb1; further, Hsp70/Hspa8 and MsrB2 appear to play a synergistic role in antioxidant defense under heat stress. Overall, our findings provide novel insights into nano-Se-mediated tolerance of heat stress, demonstrating that nano-Se exerts its anti-heat stress effects in rainbow trout by promoting protein repair, enhancing recovery of antioxidant enzyme activity, and alleviating lipid metabolism and apoptosis.
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Affiliation(s)
- Lanlan Li
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Zhe Liu
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou 730070, PR China.
| | - Jinqiang Quan
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Jun Sun
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Junhao Lu
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Guiyan Zhao
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou 730070, PR China
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Zheng Y, Xie T, Li S, Wang W, Wang Y, Cao Z, Yang H. Effects of Selenium as a Dietary Source on Performance, Inflammation, Cell Damage, and Reproduction of Livestock Induced by Heat Stress: A Review. Front Immunol 2022; 12:820853. [PMID: 35116042 PMCID: PMC8803637 DOI: 10.3389/fimmu.2021.820853] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 12/29/2021] [Indexed: 11/13/2022] Open
Abstract
Heat stress as a result of global warming has harmful consequences for livestock and is thus becoming an urgent issue for animal husbandry worldwide. Ruminants, growing pigs, and poultry are very susceptible to heat stress because of their fast growth, rapid metabolism, high production levels, and sensitivity to temperature. Heat stress compromises the efficiency of animal husbandry by affecting performance, gastrointestinal health, reproductive physiology, and causing cell damage. Selenium (Se) is an essential nutritional trace element for livestock production, which acts as a structural component in at least 25 selenoproteins (SELs); it is involved in thyroid hormone synthesis, and plays a key role in the antioxidant defense system. Dietary Se supplementation has been confirmed to support gastrointestinal health, production performance, and reproductive physiology under conditions of heat stress. The underlying mechanisms include the regulation of nutrient digestibility influenced by gastrointestinal microorganisms, antioxidant status, and immunocompetence. Moreover, heat stress damage to the gastrointestinal and mammary barrier is closely related to cell physiological functions, such as the fluidity and stability of cellular membranes, and the inhibition of receptors as well as transmembrane transport protein function. Se also plays an important role in inhibiting cell apoptosis and reducing cell inflammatory response induced by heat stress. This review highlights the progress of research regarding the dietary supplementation of Se in the mitigation of heat stress, addressing its mechanism and explaining the effect of Se on cell damage caused by heat stress, in order to provide a theoretical reference for the use of Se to mitigate heat stress in livestock.
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Affiliation(s)
| | | | - Shengli Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wei Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Khajeh Bami M, Afsharmanesh M, Espahbodi M, Esmaeilzadeh E. Effects of dietary nano-selenium supplementation on broiler chicken performance, meat selenium content, intestinal microflora, intestinal morphology, and immune response. J Trace Elem Med Biol 2022; 69:126897. [PMID: 34814061 DOI: 10.1016/j.jtemb.2021.126897] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/15/2021] [Accepted: 11/01/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Selenium (Se) is an essential micronutrient that is important to both animals and humans. Furthermore, scientists are increasingly interested in boosting the Se content of food products for human consumption, such as Se-enriched meat, because it has been shown to have a positive effect on human health. The purpose of this study was to compare the effects of green synthesized nano selenium (GNS) on broiler chicken growth performance, meat selenium content, intestinal microflora, intestinal morphology, and immune response to sodium selenite (SS) as inorganic Se. METHODS A total of 360 one-day-old Ross 308 broiler chickens were randomly assigned to four experimental groups, each of six replicates of 15 birds. The experimental treatments were as follows: (1) based diet supplemented with 0.15 mg/kg of SS (control group), (2-4) basal diet supplemented with 0.075, 0.15 and 0.3 mg/kg of GNS respectively. RESULTS The results showed that different experimental diets had no significant effect on growth performance. Meat Se content increased with dietary GNS supplementation (P < 0.05). The birds fed dietary supplements GNS compared to SS had higher lactic acid bacteria counts and lactic acid bacteria/coliform ratios in ileum on day 42 (P < 0.05). Furthermore, as compared to SS, dietary supplementation of 0.3 mg GNS/kg significantly reduced coliform numbers in the cecum on day 42 (P < 0.05). Supplementation of 0.3 mg GNS/kg in the diet vs. SS at 21 days, there was a significant increase in VH/CD in the ileum and jejunum, as well as villus height and villus surface area in the ileum, and a decrease in crypt depth and epithelial cell layer thickness in the jejunum. Furthermore, at 42 days, birds fed 0.3 mg GNS/kg had higher villus height, villus surface area, and goblet cell density in the ileum and jejunum than birds fed SS (P < 0.05). Compared to SS, broilers fed 0.3 mg GNS/kg dietary supplementation had higher IgG at 42 days (P < 0.05). CONCLUSION In comparison to the use of SS, it could be concluded that the inclusion of GNS as a novel Se source can improve meat Se content, intestinal microflora, intestinal morphology, and immune response.
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Affiliation(s)
- Mohammad Khajeh Bami
- Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mohsen Afsharmanesh
- Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Mehran Espahbodi
- Research and Development Division, Sarcheshmeh Copper Complex, Kerman, Iran
| | - Esmat Esmaeilzadeh
- Research and Development Division, Sarcheshmeh Copper Complex, Kerman, Iran
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Peng Y, Li H, Shen K, Pan W, Zhang J, Zhou D. Nano-selenium alleviating the lipid metabolism disorder of LMH cells induced by potassium dichromate via down-regulating ACACA and FASN. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:69426-69435. [PMID: 34302249 DOI: 10.1007/s11356-021-14775-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 06/02/2021] [Indexed: 06/13/2023]
Abstract
Chromium (Cr) VI is a common environmental contaminant highly toxic to livers. To explore the protective effect of nano-selenium (NANO-Se) on broiler liver damage caused by Cr (VI), this experiment was conducted with chicken hepatocellular carcinoma cell line (LMH) as the research object, using potassium dichromate (PDC) and NANO-Se gel for culturing cells. The results indicated that: (1) in the PDC-exposure group, LMH cells being treated with 20 μmol/L PDC for 24 h, IC50 (median inhibition concentration) = 23.427 could significantly reduce cell activity (p < 0.01) which decreased over time. PDC markedly increased the concentration of triglycerides (TG) and low-density lipoprotein cholesterol (LDL-C) in LMH cells (p < 0.01), which increased over time. In addition, PDC could substantially augment the transcription and protein levels of acetyl-CoA carboxylases alpha (ACACA) and fatty acid synthase (FASN) in LMH cells (p < 0.01). (2) Compared with the PDC-exposure group, the addition of 8 μmol/L NANO-Se after 12 h of PDC treatment could significantly increase the cell viability (p < 0.01) but decreased over time; the levels of TG and LDL-C in LMH cells declined markedly (p < 0.01). In addition, the transcription and protein levels of ACACA and FASN in LMH cells were significantly reduced (p < 0.01). (3) The LMH cells were cultured in advance with 8 μmol/L NANO-Se for 12 h and then with PDC for 24 h. The obtained results were similar to the above. There were no obvious differences in TG and LDL-C levels (p > 0.05). However, significant differences were found in the activity of LMH cells and the expression of genes related to lipid metabolism (p < 0.05).All these results suggest that the exposure to PDC promotes the increase of lipid synthesis in LMH cells and causes disorders in the lipid metabolism. Moreover, NANO-Se can partially attenuate the damage caused by PDC through down-regulating of the lipid metabolism-related genes (ACACA and FASN) in LMH cells.
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Affiliation(s)
- Yuxuan Peng
- Veterinary Clinical Medicine Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Hao Li
- Veterinary Clinical Medicine Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Ke Shen
- Veterinary Clinical Medicine Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Wen Pan
- Veterinary Clinical Medicine Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Jiabin Zhang
- Veterinary Clinical Medicine Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Donghai Zhou
- Veterinary Clinical Medicine Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Shizishan Street, Wuhan, 430070, People's Republic of China.
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Khajeh Bami M, Afsharmanesh M, Espahbodi M. Dietary supplementation with biosynthesised nano-selenium affects growth, carcass characteristics, meat quality and blood parameters of broiler chickens. ANIMAL PRODUCTION SCIENCE 2021. [DOI: 10.1071/an21192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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