scholarly journals Dietary supplementation of total flavonoids from Rhizoma Drynariae improves bone health in older caged laying hens

2020 ◽  
Vol 99 (10) ◽  
pp. 5047-5054
Author(s):  
J. Huang ◽  
X.F. Tong ◽  
Z.W. Yu ◽  
Y.P. Hu ◽  
L. Zhang ◽  
...  
Keyword(s):  
Bone Health ◽  
Laying Hens ◽  
Dietary Supplementation ◽  
Total Flavonoids ◽  
Rhizoma Drynariae

scholarly journals Total flavonoids of Chinese herb Rhizoma Drynariae alleviates bone loss in caged laying hens

2019 ◽  
Author(s):  
Jie Huang ◽  
Zhengwang Yu ◽  
Xiaofeng Tong ◽  
Lei Zhang ◽  
Yanping Hu ◽  
...  
Keyword(s):  
Bone Loss ◽  
Bone Health ◽  
Laying Hens ◽  
Egg Quality ◽  
Production Performance ◽  
Herbal Extract ◽  
Total Flavonoids ◽  
Protective Effects ◽  
Low Calcium Diet ◽  
Rhizoma Drynariae

Abstract Background: Caged layer osteoporosis (CLO) is a common bone metabolic disease and is threatening the modern poultry industry. The objective of this study was to evaluate effects of total flavonoids of Rhizoma Drynariae (TFRD), a Chinese herbal extract, on bone health, egg quality and production performance in caged laying hens. Totals of 144 Lohmann pink-shell laying hens of 32-wk-old were randomly allocated to 4 groups (CON, LCD, TFRD1 and TFRD2, respectively). The CON group was fed a basal diet, the LCD group was fed a low calcium diet (LCD) and the TFRD1 and TFRD2 groups were fed LCD supplemented with 0.5 and 2.0 g/kg TFRD, respectively.Results: Supplying 2.0 g/kg TFRD produced protective effects on calcium deficiency-induced bone loss in caged laying hens, including reduced serum levels of alkaline phosphatase and tartrate resistant acid phosphatase activities (both P < 0.05) and osteocalcin content (P < 0.05), enhanced femur bone mineral density (P < 0.05), improved bone microarchitecture deterioration, down-regulated mRNA expressions of RANKL (P < 0.01) and up-regulated RUNX2 and OPG levels (both P < 0.01). Furthermore, compared to LCD group, 2.0 g/kg TFRD treatment had lower malondialdehyd levels (P < 0.01), and higher total antioxidant capacity (P < 0.05) and glutathione peroxidase (P < 0.05) activities, which contributed to the protective effects of bone loss. TFRD supplementation did not affect egg quality while 2.0 g/kg TFRD treatment improved laying rate (P < 0.05) and decreased feed conversion ratio (P < 0.05).Conclusions: These findings suggested that TFRD has beneficial effects on bone health and production performance in caged laying hens, which can be used for the prevention of CLO.

scholarly journals Total flavonoids of Chinese herb Rhizoma Drynariae alleviates bone loss in caged laying hens

2020 ◽  
Author(s):  
Jie Huang ◽  
Zhengwang Yu ◽  
Xiaofeng Tong ◽  
Lei Zhang ◽  
Yanping Hu ◽  
...  
Keyword(s):  
Bone Loss ◽  
Bone Health ◽  
Laying Hens ◽  
Egg Quality ◽  
Production Performance ◽  
Total Flavonoids ◽  
Protective Effects ◽  
Calcium Diet ◽  
Low Calcium Diet ◽  
Rhizoma Drynariae

Abstract Background: Caged layer osteoporosis (CLO) is a common bone metabolic disease and is threatening the modern poultry industry. The objective of this study was to evaluate effects of total flavonoids of Rhizoma Drynariae (TFRD), a Chinese herbal extract, on bone health, egg quality and production performance in caged laying hens. Totals of 144 Lohmann pink-shell laying hens of 32-wk-old were randomly allocated to 4 groups. The control (CON) group was fed a basal diet, the low calcium diet (LCD) group was fed a low calcium diet, and the TFRD1 and TFRD2 groups were fed LCD supplemented with 0.5 and 2.0 g/kg TFRD, respectively. The experiment lasted 9 wks. Results: Supplying 2.0 g/kg TFRD produced protective effects on calcium deficiency-induced bone loss in caged laying hens, including enhanced femur bone mineral density (P < 0.05), improved bone microarchitecture deterioration, reduced serum levels of alkaline phosphatase and tartrate resistant acid phosphatase activities (both P < 0.05) and osteocalcin content (P < 0.05), down-regulated mRNA expressions of receptor activator of nuclear factor kappa-B ligand (RANKL) (P < 0.01) and up-regulated runt related transcription factor 2 (RUNX2) and osteoprotegerin (OPG) levels (both P < 0.01). Furthermore, compared to LCD group, 2.0 g/kg TFRD treatment had lower malondialdehyd levels (P < 0.01), and higher total antioxidant capacity (P < 0.05) and glutathione peroxidase (P < 0.05) activities, which contributed to the protective effects of bone loss. TFRD supplementation did not affect egg quality while 2.0 g/kg TFRD treatment improved laying rate (P < 0.05) and decreased feed conversion ratio (P < 0.05). Conclusions: These findings suggested that TFRD has beneficial effects on bone health and production performance in caged laying hens, which can be used for the prevention of CLO.

scholarly journals 318 Total flavonoids from Rhizoma drynariae ameliorate low calcium-induced osteoporosis by regulating the bone metabolism in caged laying hens

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 6-7
Author(s):  
Jie Huang ◽  
Lei Zhang ◽  
Zhongxin Zhou
Keyword(s):  
Bone Density ◽  
Laying Hens ◽  
Test Group ◽  
Economic Losses ◽  
Control Group ◽  
Total Flavonoids ◽  
Calcium Diet ◽  
Low Calcium Diet ◽  
Low Calcium ◽  
Rhizoma Drynariae

Abstract Cage layer osteoporosis (CLO) is one of the most serious bone metabolic diseases in laying hens industry. This disease not only causes huge economic losses, but also greatly affects the welfare of animals. Traditional Chinese medicines are widely used for prevention and treatment of all kinds of diseases. It is famous for excellent treatment, low side effects, and wide range of use safety. Total flavonoids from Rhizoma drynariae (TFRD) is an herbal product extracted from the dried root of Rhizoma drynariae. Recently, many researcher reports about the beneficial effects of TFRD in relation to various types of bone conditions but no report is available about promoting effect of TFRD against CLO. Therefore, current study was conducted to explore the ameliorating effect of TFRD in low calcium-induced osteoporosis. A total of 144 Lohmann pink-shell laying hens of 31-week-old were equally distributed in four groups: The control group (containing calcium 3.5% in based diet), the low calcium group (containing calcium 1.5% in low-calcium diet), the test group 1 (adding 500 mg/kg TFRD to low-calcium diet), the test group 2 (adding 2000 mg/kg TFRD to low-calcium diet). The birds were fed the diets for 60 d. The bone mineral density of tibia was measured by dual-energy X-ray absorptiometry indicating that the low calcium group had lower bone density than the control group. Compared with the low calcium group, the supplementation of TFRD protects bone tissue and prevents bone density from decreasing. Serum biochemical analysis showed that TFRD supplementation decreased the level of alkaline phosphatase, tartrate-resistant acid phosphatase, osteocalcin and calcitonin. Therefore, adding TFRD to low-calcium diet can improve the activity of important biochemical markers, clearly inhibit bone resorption and alleviate osteoporosis induce by low-calcium diet in caged laying hens.

scholarly journals Mitigation Effects of Bentonite and Yeast Cell Wall Binders on AFB1, DON, and OTA Induced Changes in Laying Hen Performance, Egg Quality, and Health

Toxins ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 156
Author(s):  
Ling Zhao ◽  
Yue Feng ◽  
Jing-Tao Wei ◽  
Meng-Xiang Zhu ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Basal Diet ◽  
Liver Weight ◽  
Laying Hen ◽  
Egg Laying ◽  
Villus Height ◽  
Crypt Depth ◽  
Induced Changes

The objective of this study was to evaluate the efficacy of mycotoxin binders in reducing the adverse effects of co-occurring dietary aflatoxin B1 (AFB1), deoxynivalenol (DON) and ochratoxin A (OTA) on laying hens. Three hundred and sixty 26-week-old Roman laying hens were randomly allocated into four experimental groups with 10 replicates of nine birds each. The four groups received either a basal diet (BD; Control), a BD supplemented with 0.15 mg/kg AFB1 + 1.5 mg/kg DON + 0.12 mg/kg OTA (Toxins), a BD + Toxins with Toxo-HP binder (Toxins + HP), or a BD + Toxins with TOXO XL binder (Toxins + XL) for 12 weeks. Compared to the control, dietary supplementation of mycotoxins decreased (P < 0.10) total feed intake, total egg weight, and egg-laying rate, but increased feed/egg ratio by 2.5–6.1% and mortality during various experimental periods. These alterations induced by mycotoxins were alleviated by supplementation with both TOXO HP and XL binders (P < 0.10). Furthermore, dietary mycotoxins reduced (P < 0.05) eggshell strength by 12.3% and caused an accumulation of 249 μg/kg of DON in eggs at week 12, while dietary supplementation with TOXO HP or XL mitigated DON-induced changes on eggshell strength and prevented accumulation of DON in eggs (P < 0.05). Moreover, dietary mycotoxins increased relative liver weight, but decreased spleen and proventriculus relative weights by 11.6–22.4% (P < 0.05). Mycotoxin exposure also increased alanine aminotransferase activity and reduced immunoglobulin (Ig) A, IgM, and IgG concentrations in serum by 9.2–26.1% (P < 0.05). Additionally, mycotoxin exposure induced histopathological damage and reduced villus height, villus height/crypt depth, and crypt depth in duodenum, jejunum and (or) ileum (P < 0.05). Notably, most of these histological changes were mitigated by supplementation with both TOXO HP and XL (P < 0.05). In conclusion, the present study demonstrated that the mycotoxin binders TOXO HP and XL can help to mitigate the combined effects of AFB1, DON, and OTA on laying hen performance, egg quality, and health.

scholarly journals Arthrospira Platensis (Spirulina) Supplementation on Laying Hens’ Performance: Eggs Physical, Chemical, and Sensorial Qualities

Foods ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 386 ◽  
Author(s):  
Omri ◽  
Amraoui ◽  
Tarek ◽  
Lucarini ◽  
Durazzo ◽  
...  
Keyword(s):  
Laying Hens ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Basal Diet ◽  
Egg Yolk ◽  
Arthrospira Platensis ◽  
Cholesterol Concentration ◽  
Physical Chemical ◽  
Egg Yolks ◽  
The Impact

The present study evaluated the effects of dietary supplementation of spirulina on laying hens’ performances: Eggs’ physical, chemical, and sensorial qualities. A total of 45 Lohman White hens, 44 weeks of age, were randomized into 3 groups of 15 birds. Hens were given 120 g/d of a basal diet containing 0% (control), 1.5%, and 2.5% of spirulina for 6 weeks. Albumen height and consequently Haugh unit were significantly affected by dietary supplementation of spirulina (p < 0.05) and by weeks on diet (p < 0.05). This supplement did not affect (p > 0.05) egg yolk weight or height. However, spirulina increased egg yolk redness (a*) from 1.33 (C) to 12.67 (D1) and 16.19 (D2) and reduced (p < 0.05) the yellowness (b*) parameter from 62.1(C) to 58.17 (D1) and 55.87 (D2). Egg yolks from hens fed spirulina were darker, more red, and less yellow in color than egg yolks from hens fed the control-diet (p < 0.0001). However, spirulina did not affect (p > 0.05) egg yolks’ total cholesterol concentration. In conclusion, a significant enhancement of egg yolk color was found in response to spirulina supplementation. Further investigations are needed to evaluate the impact of spirulina on egg yolks’ fatty acids profile.

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