scholarly journals Low levels of organic compound trace elements improve the eggshell quality, antioxidant capacity, immune function, and mineral deposition of aged laying hens

animal ◽  
2021 ◽  
Vol 15 (12) ◽  
pp. 100401
Author(s):  
K.K. Zhang ◽  
M.M. Han ◽  
Y.Y. Dong ◽  
Z.Q. Miao ◽  
J.Z. Zhang ◽  
...  
Keyword(s):  
Trace Elements ◽  
Organic Compound ◽  
Antioxidant Capacity ◽  
Immune Function ◽  
Laying Hens ◽  
Eggshell Quality ◽  
Mineral Deposition ◽  
Low Levels

scholarly journals Effects of Different Patterns and Sources of Trace Elements on Laying Performance, Tissue Mineral Deposition, and Fecal Excretion in Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1164
Author(s):  
Kaili Yang ◽  
Shengjun Hu ◽  
Rui Mu ◽  
Yiqing Qing ◽  
Liang Xie ◽  
...  
Keyword(s):  
Trace Elements ◽  
Laying Hens ◽  
Trace Minerals ◽  
Control Treatment ◽  
Fecal Excretion ◽  
Egg Weight ◽  
Mineral Deposition ◽  
Laying Performance ◽  
Organic Minerals ◽  
Recommended Level

This study was conducted to investigate the effects of different patterns and sources of Zn, Fe, Cu, Mn, and Se on performance, mineral deposition (liver, kidney, pancreas, spleen, pectorals muscle, and tibia), and excretion of laying hens, then to find an optimal dietary supplemental pattern of trace elements in laying hens. A total of 864 healthy laying hens with similar laying rate (Roman, 26-week-old) were randomly divided into nine treatments, with six replications of 16 birds per replication, including a control treatment and four patterns with different element sources (inorganic or organic): (1) Control treatment (basic diet without added extra trace minerals, CT); pattern 1, NRC (1994) recommended level (NRC-L): (2) inorganic minerals of NRC-L pattern (IN), (3) organic minerals of NRC-L pattern (ON); pattern 2, NY/T 33-2004 recommended level (NY/T-L): (4) inorganic minerals of NY/T-L pattern (IY), (5) organic minerals of NY/T-L pattern (OY); pattern 3, 50% NRC (1994) recommended level (50% NRC-L): (6) inorganic minerals of 50% NRC-L pattern (IHN), (7) organic minerals of 50% NRC-L pattern (OHN); pattern 4, the ratio of minerals in blood of laying hens was taken as the supplement proportion of trace elements, and Zn was supplemented depended on NRC recommended level (TLB): (8) inorganic minerals of TLB pattern (IB), (9) organic minerals of TLB pattern (OB). Two weeks were allowed for adjustment to the conditions and then measurements were made over eight weeks. Supplementation of trace elements led to increased daily egg weight (p < 0.05). Patterns of minerals in diets affected the content of liver Mn, pancreas Mn, tibia Mn, and the tissues Se (p < 0.05). Sources of minerals had positive effects on daily egg weight (p < 0.05), the concentrations of liver Fe, kidney Cu, tissues Se (except spleen), and fecal Se (p < 0.05). In conclusion, diet supplemented with the organic trace minerals of 50% NRC-L pattern (OHN) in laying hens promoted optimum laying performance, mineral deposition, and reduced mineral excretion.

scholarly journals Transcriptome analysis revealed the effect of selenium yeast on improving eggshell quality in aged laying hens

2021 ◽  
Author(s):  
Zhexi Liu ◽  
Yutao Cao ◽  
Yue Ai ◽  
Xiaonan Yin ◽  
Lingli Wang ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Laying Hens ◽  
Egg Quality ◽  
Solute Carrier Family ◽  
Selenium Yeast ◽  
Shell Quality ◽  
Eggshell Quality ◽  
Plasma Antioxidant Capacity ◽  
Solute Carrier ◽  
Plasma Antioxidant

Abstract Background Egg internal and eggshell quality were deteriorated in aging laying hens. Improving egg and shell quality can prolong the laying cycle. Although, selenium yeast (SY) has been found with the potential to enhance the laying performance and egg quality, the underlying mechanisms have not been investigated. Therefore, we investigated the effect and molecule mechanism of selenium yeast on egg and shell quality in aged laying hens. Methods Three hundred 76-week-old Jing Hong laying hens were divided into four equal treatments and fed with Se-deficient diet (SD), 0.15, 0.30, 0.45 mg/kg selenium yeast diet (SY0.15, SY0.30 and SY0.45). At the end of the trial, we evaluated the plasma and tissue selenium content, plasma antioxidant capacity and egg quality. Transcriptomic analysis was performed to investigate the boosting effect of selenium yeast on eggshell quality. The weighted gene co-expression network analysis (WGCNA) analysis was performed to screen out the key candidate genes related with eggshell quality affected by selenium yeast. Results Dietary selenium yeast supplementation enhanced the eggshell strength (SY0.45) (P < 0.01) and reduced the shell translucence (SY0.15, SY0.30 and SY0.45) to ameliorate the eggshell quality. Moreover, body Se status and plasma antioxidant capacity were significantly enhanced by selenium yeast supplementation (P < 0.05), and showed a dose-dependent effect. Transcriptomic and WGCNA analysis identified some key candidate genes involved in eggshell quality including cell migration inducing hyaluronidase 1 (CEMIP), ovalbumin (OVAL), solute carrier family 6 member 17 (SLC6A17), solute carrier family 13 member 5 (SLC13A5), proopiomelanocortin (POMC) and proenkephalin (PENK). Functional enrichment analysis revealed that selenium may alter the biological process including eggshell mineralization, ion transport and laying period to affect eggshell formation. Conclusion Selenium yeast enhanced eggshell strength and reduced the shell translucence by improving antioxidant capacity, selenium status, and regulating the processes of shell mineralization, ion transport and laying period. These findings provide a novel molecule biomarker for affecting eggshell quality regulated by selenium.

scholarly journals Effects of a yeast-derived product on growth performance, antioxidant capacity and immune function of broilers

2021 ◽  
pp. 101343
Author(s):  
Ting Wang ◽  
Kang Cheng ◽  
CaiYun Yu ◽  
QiMing Li ◽  
YiChun Tong ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Immune Function ◽  
Growth Performance

scholarly journals Prolonged scotophase within a 24-h light regime improves eggshell quality by enhancing calcium deposition in laying hens

2021 ◽  
pp. 101098
Author(s):  
Qian Xin ◽  
Minghui Wang ◽  
Hongchao Jiao ◽  
Jingpeng Zhao ◽  
Haifang Li ◽  
...  
Keyword(s):  
Laying Hens ◽  
Light Regime ◽  
Calcium Deposition ◽  
Eggshell Quality

scholarly journals Effects of Dietary Strawberry Supplementation on Antioxidant Biomarkers in Obese Adults with Above Optimal Serum Lipids

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Arpita Basu ◽  
Stacy Morris ◽  
Angel Nguyen ◽  
Nancy M. Betts ◽  
Dongxu Fu ◽  
...  
Keyword(s):  
Trace Elements ◽  
Enzyme Activity ◽  
Antioxidant Capacity ◽  
Serum Lipids ◽  
Low Dose ◽  
High Dose ◽  
Obese Adults ◽  
Plasma Antioxidant Capacity ◽  
Dose Control ◽  
Plasma Antioxidant

Berries have shown several cardiovascular health benefits and have been associated with antioxidant functions in experimental models. Clinical studies are limited. We examined the antioxidant effects of freeze-dried strawberries (FDS) in adults [n=60; age:49±10years; BMI:36±5 kg/m2(mean ± SD)] with abdominal adiposity and elevated serum lipids. Participants were randomized to one of the following arms: low dose strawberry (25 g/day FDS), low dose control beverage (LD-C), high dose strawberry (50 g/d FDS), and high dose control beverage (HD-C) for 12 weeks. Control beverages were matched for calories and total fiber. Plasma antioxidant capacity, trace elements (copper, iron, selenium, and zinc), whole blood glutathione (GSH), and enzyme activity (catalase, glutathione peroxidase, and glutathione reductase) were examined at screening (0 week) and after 12 weeks’ intervention. At 12 weeks, plasma antioxidant capacity and glutathione levels were higher in the strawberry versus control groups (low and high dose FDS: 45% and 42% for plasma antioxidant capacity and 28% and 36% for glutathione, resp.); glutathione was higher in the high versus low dose strawberry group (allp<0.05). Serum catalase activity was higher in the low dose strawberry (43%) versus control group (p<0.01). No differences were noted in plasma trace elements and glutathione enzyme activity. Dietary strawberries may selectively increase plasma antioxidant biomarkers in obese adults with elevated lipids.

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