scholarly journals The Effects of Dietary Supplementation of L-carnitine and Humic Substances on Performance, Egg Traits and Blood Parameters in Laying Hens

2006 ◽  
Vol 19 (10) ◽  
pp. 1478-1483 ◽  
Author(s):  
Sakine Yalçın ◽  
Ahmet Ergün ◽  
Bülent Özsoy ◽  
Suzan Yalçın ◽  
Handan Erol ◽  
...  
Keyword(s):  
Humic Substances ◽  
Laying Hens ◽  
Dietary Supplementation ◽  
Blood Parameters ◽  
Egg Traits

scholarly journals The Effect of Pleurotus Eryngii Stalk Residue Dietary Supplementation on Layer Performance, Egg Traits and Oxidative Status

2015 ◽  
Vol 15 (2) ◽  
pp. 447-461 ◽  
Author(s):  
Tzu-Tai Lee ◽  
Jhih-Ying Ciou ◽  
Chung-Nan Chen ◽  
Bi Yu
Keyword(s):  
Laying Hens ◽  
Dietary Supplementation ◽  
Experimental Period ◽  
Cholesterol Content ◽  
Oxidative Status ◽  
Pleurotus Eryngii ◽  
Production Performance ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Control Group ◽  
Egg Traits

Abstract This study was conducted to investigate the effects of Pleurotus eryngii stalk residue (PESR) on performance, egg traits and oxidative status of laying hens. One hundred and twenty 22-week-old laying hens (Hendrix) were randomly allocated into 4 dietary groups, each containing 30 birds, including 10 replicates per group and 3 birds per replicate. In addition, they were fed diets supplemented with 0 (control group, corn-soybean meal), 0.5, 1.0, or 2.0% dried PESR groups for 8 weeks, respectively. The results indicated that the different levels of dietary supplementation produced no significant differences in production performance among the experimental groups of laying hens. The Haugh unit was significantly higher in the 1.0% and 2.0% PESR groups compared to the control group. The eggs’ cholesterol content of the 1.0% and 2.0% PESR groups was significantly lower than that of the control group at 5-8 weeks. The blood triglyceride content and cholesterol content were significantly lower in the 1.0% and 2.0% PESR groups compared to the control group at the 4th and 8th weeks. Hence, the supplemented 1.0% and 2.0% of PESR groups showed higher levels for serum trolox equivalent antioxidant capacity, catalase and superoxide dismutase during the experimental period in comparison with the control group. This study indicated that a by-product of Pleurotus eryngii, PESR, could produce lower-cholesterol eggs and improve the oxidative stability with 1.0% and 2.0% PESR supplementation in laying hens.

Effect of garlic powder on the performance, egg traits and blood parameters of laying hens

2006 ◽  
Vol 86 (9) ◽  
pp. 1336-1339 ◽  
Author(s):  
Sakine Yalçın ◽  
E Ebru Onbaşılar ◽  
Zehra Reisli ◽  
Suzan Yalçın
Keyword(s):  
Laying Hens ◽  
Blood Parameters ◽  
Garlic Powder ◽  
Egg Traits

Effects of glycerol on performance, egg traits, some blood parameters and antibody production to SRBC of laying hens

2010 ◽  
Vol 129 (1-3) ◽  
pp. 129-134 ◽  
Author(s):  
Sakine Yalçın ◽  
Handan Erol ◽  
Bülent Özsoy ◽  
İlyas Onbaşılar ◽  
Suzan Yalçın ◽  
...  
Keyword(s):  
Antibody Production ◽  
Laying Hens ◽  
Blood Parameters ◽  
Egg Traits

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 Effects of Essential Oils-Based Supplement and Salmonella Infection on Gene Expression, Blood Parameters, Cecal Microbiome, and Egg Production in Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 360
Author(s):  
Georgi Yu. Laptev ◽  
Elena A. Yildirim ◽  
Larisa A. Ilina ◽  
Valentina A. Filippova ◽  
Ivan I. Kochish ◽  
...  
Keyword(s):  
Egg Production ◽  
Salmonella Enteritidis ◽  
Laying Hens ◽  
Expression Profiles ◽  
Blood Parameters ◽  
Post Inoculation ◽  
Production Traits ◽  
Immunological Parameters ◽  
Specific Expression ◽  
Blood Biochemical

One of the main roles in poultry resistance to infections caused by Salmonella is attributed to host immunity and intestinal microbiota. We conducted an experiment that involved challenging Lohmann White laying hens with Salmonella Enteritidis (SE), feeding them a diet supplemented with an EOs-based phytobiotic Intebio®. At 1 and 7 days post-inoculation, the expression profiles of eight genes related to immunity, transport of nutrients in the intestine, and metabolism were examined. Cecal microbiome composition and blood biochemical/immunological indices were also explored and egg production traits recorded. As a result, the SE challenge of laying hens and Intebio® administration had either a suppressive or activating effect on the expression level of the studied genes (e.g., IL6 and BPIFB3), the latter echoing mammalian/human tissue-specific expression. There were also effects of the pathogen challenge and phytobiotic intake on the cecal microbiome profiles and blood biochemical/immunological parameters, including those reflecting the activity of the birds’ immune systems (e.g., serum bactericidal activity, β-lysine content, and immunoglobulin levels). Significant differences between control and experimental subgroups in egg performance traits (i.e., egg weight/number/mass) were also found. The phytobiotic administration suggested a positive effect on the welfare and productivity of poultry.

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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