scholarly journals Effect of Dietary Supplementation of Red Ginseng By-product on Laying Performance, Blood Biochemistry, Serum Immunoglobulin and Microbial Population in Laying Hens

2015 ◽  
Vol 29 (10) ◽  
pp. 1464-1469 ◽  
Author(s):  
H. K. Kang ◽  
S.-B. Park ◽  
C. H. Kim
Keyword(s):  
Microbial Population ◽  
Laying Hens ◽  
Dietary Supplementation ◽  
Blood Biochemistry ◽  
Serum Immunoglobulin ◽  
Red Ginseng ◽  
Laying Performance

scholarly journals Dietary cadmium chloride impairs shell biomineralization by disrupting the metabolism of the eggshell gland in laying hens

2020 ◽  
Vol 98 (2) ◽  
Author(s):  
Mingkun Zhu ◽  
Huaiyu Li ◽  
Liping Miao ◽  
Lanlan Li ◽  
Xinyang Dong ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Basal Diet ◽  
Complement C3 ◽  
Mrna Levels ◽  
Palisade Layer ◽  
Positive Effects ◽  
Laying Performance ◽  
Dietary Cadmium

Abstract In this study, we identified cadmium (Cd) as a potential endocrine disruptor that impairs laying performance, egg quality, and eggshell deposition and induces oxidative stress and inflammation in the eggshell glands of laying hens. A total of 480 38-wk-old laying hens were randomly assigned into 5 groups that were fed a basal diet (control) or a basal diet supplemented with Cd (provided as CdCl2·2.5 H2O) at 7.5, 15, 30, and 60 mg Cd per kg feed for 9 wk. The results showed that, when compared with the control group, a low dose of dietary Cd (7.5 mg/kg) had positive effects on egg quality by improving albumen height, Haugh unit, yolk color, and shell thickness at the third or ninth week. However, with the increase in the dose and duration of Cd exposure, the laying performance, egg quality, and activities of eggshell gland antioxidant enzymes (catalase [CAT], glutathione peroxide [GSH-Px]), and ATPase (Na+/K+-ATPase, Ca2+-ATPase, and Mg2+-ATPase) deteriorated, and the activity of total nitric oxide synthase (T-NOS) and the level of malondialdehyde (MDA) increased significantly (P < 0.05). The histopathology and real-time quantitative PCR results showed that Cd induced endometrial epithelial cell proliferation accompanied by upregulation of the mRNA levels of progesterone receptor (PgR) and epidermal growth factor receptor (EGFR), downregulation of the mRNA levels of estrogen receptor α (ERα) and interleukin 6 (IL6), and inflammation of the eggshell gland accompanied by significantly increased expression of complement C3 and pro-inflammatory cytokine tumor necrosis factor α (TNFα) (P < 0.05). In addition, the ultrastructure of the eggshell showed that dietary supplementation with 7.5 mg/kg Cd increased the palisade layer and total thickness of the shell, but with the increase in dietary Cd supplementation (30 and 60 mg/kg) the thickness of the palisade layer and mammillary layer decreased significantly (P < 0.05), and the outer surface of the eggshell became rougher. Correspondingly, the expression of calbindin 1 (CALB1), ovocalyxin-32 (OCX-32), ovocalyxin-36 (OCX-36), osteopontin (SPP1), and ovocledidin-17 (OC-17) decreased significantly (P < 0.05) with increasing dietary Cd supplementation. Conclusively, the present study demonstrates that dietary supplementation with Cd negatively affects laying performance, egg quality, and eggshell deposition by disturbing the metabolism of eggshell glands in laying hens but has a positive effect on egg quality at low doses.

scholarly journals Effects of Dietary Supplementation with Red Yeast Rice on Laying Performance, Egg Quality and Serum Traits of Laying Hens

2015 ◽  
Vol 14 (3) ◽  
pp. 4059 ◽  
Author(s):  
Hong Sun ◽  
Yifei Wu ◽  
Xin Wang ◽  
Yong Liu ◽  
Xiaohong Yao ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Red Yeast Rice ◽  
Red Yeast ◽  
Laying Performance

Effect of dietary supplementation of organic zinc on laying performance, egg quality and some biochemical parameters of laying hens

2017 ◽  
Vol 102 (2) ◽  
pp. e12793 ◽  
Author(s):  
M. E. Abd El-Hack ◽  
M. Alagawany ◽  
S. A. Amer ◽  
M. Arif ◽  
K. M. M. Wahdan ◽  
...  
Keyword(s):  
Biochemical Parameters ◽  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Organic Zinc ◽  
Laying Performance

scholarly journals Effects of Different Probiotics on Laying Performance, Egg Quality, Oxidative Status, and Gut Health in Laying Hens

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1110 ◽  
Author(s):  
Quanhang Xiang ◽  
Chao Wang ◽  
Hong Zhang ◽  
Wen Lai ◽  
Hongkui Wei ◽  
...  
Keyword(s):  
Treatment Group ◽  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Saccharomyces Boulardii ◽  
Oxidative Status ◽  
Control Group ◽  
Gut Health ◽  
Feed Conversion ◽  
Laying Performance

With recent bans on the growth-promoting use of antibiotics, alternative strategies are needed to improve the performance of agricultural animals. Here, the effects of dietary supplementation with Clostridium butyricum and a combination of Saccharomyces boulardii and Pediococcus acidilactici were assessed on laying performance, egg quality, oxidative status, and gut health in laying hens. A total of 8208 Lohmann pink laying hens were divided into 3 treatment groups, with each group replicated 12 times (n = 228). Hens in the control group (CON) were provided a basic diet devoid of added antibiotics and probiotics. Treatment group 1 (T1) received the same base diet supplemented with 0.5 g/kg C. butyricum, and the diets of treatment group 2 (T2) supplemented with S. boulardii (0.05 g/kg) and P. acidilactici (0.1 g/kg) for the entirety of the 5-week trial. The data indicated that C. butyricum supplementation resulted in a significant reduction in ADFI, a significant increase in feed conversion, eggshell strength, and the CP% of albumen (dry matter, DM) relative to CON. The probiotic-treated hens exhibited decreased reactive oxygen species (ROS) levels in ileum and cecum, and reduced malondialdehyde (MDA) in serum. In conclusion, dietary supplementation with C. butyricum may be beneficial with respect to hen performance, egg quality, and gut health.

scholarly journals PSVII-26 Effects of different probiotics on laying performance, egg quality, oxidative status, and gut health in laying hens

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 355-355
Author(s):  
Quanhang Xiang ◽  
Jian Peng
Keyword(s):  
Treatment Group ◽  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Saccharomyces Boulardii ◽  
Oxidative Status ◽  
Control Group ◽  
Gut Health ◽  
Feed Conversion ◽  
Laying Performance

Abstract With recent bans on the use of growth-promoting use of antibiotics, alternative strategies are needed to improve the performance of agricultural animals. Here, the effects of dietary supplementation with several probiotic organisms (Clostridium butyricum, a complex of Saccharomyces boulardii, and Pediococcus acidilactici) on laying performance, egg quality, oxidative status, and gut health in laying hens. A total of 8,208 Lohmann pink laying hens, at 180 days of age, were divided into 3 treatment groups, each group was replicated 12 times (n = 228). Hens in the control group (CON) were provided a basic diet devoid of added antibiotics and probiotics. Treatment group (A) received the same base diet supplemented with 0.5g/kg C. butyricum, and the diets of treatment group (B) supplemented with S. boulardii (0.05g/kg) and P. acidilactici (0.1g/kg) for the entirety of the 5-week trial. The data indicated that C. butyricum supplementation resulted in a significant reduction in ADFI, a significant increase in feed conversion, eggshell strength, and the CP% of albumen (dry matter, DM) relative to CON. The probiotic treated hens exhibited decreased ROS levels in ileum, cecum, and reduced MDA in serum. In conclusion, dietary supplementation with C. butyricum may be beneficial with respect to hen performance, egg quality, and gut health.

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