scholarly journals Effect of Olive Leaf (Olea europaea) Powder on Laying Hens Performance, Egg Quality and Egg Yolk Cholesterol Levels

2015 ◽  
Vol 28 (4) ◽  
pp. 538-543 ◽  
Author(s):  
H. Cayan ◽  
G. Erener
Keyword(s):  
Olea Europaea ◽  
Laying Hens ◽  
Egg Quality ◽  
Egg Yolk ◽  
Olive Leaf ◽  
Cholesterol Levels ◽  
Yolk Cholesterol ◽  
Olea Europaéa

scholarly journals Effect of Dietary Factors on Serum and Egg Yolk Cholesterol Levels of Laying Hens

1977 ◽  
Vol 56 (5) ◽  
pp. 1616-1621 ◽  
Author(s):  
J.S. SIM ◽  
D.B. BRAGG
Keyword(s):  
Laying Hens ◽  
Egg Yolk ◽  
Dietary Factors ◽  
Cholesterol Levels ◽  
Yolk Cholesterol

scholarly journals Effect of Dietary Alfalfa Meal on Performance, Egg Quality, Egg Yolk Cholesterol and Hatchability Parameters of Quail Breeders

2014 ◽  
Vol 3 (3) ◽  
pp. 103 ◽  
Author(s):  
Osman Olgun ◽  
Alp Önder Yıldız
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Egg Yolk ◽  
Egg Mass ◽  
Feed Conversion ◽  
Cholesterol Levels ◽  
Alfalfa Meal ◽  
Egg Shell ◽  
Yolk Cholesterol ◽  
Mass Feed

The aim of this study was to investigate the effects of different levels of alfalfa meal on performance, egg quality, egg yolk cholesterol and hatchability parameters of quail breeders. In this trial a total of 90 Japanese quail breeders (30 males, 60 females), 10 weeks old was distributed 5 experimental groups randomly. Each experimental group consisted of 6 replicates of 3 quails (1 males, 2 females) in each. During the 12 weeks experiment period, birds were fed with 5 dietary groups based on corn and soybean meal and containing 0 (control), 10, 20, 40 and 80 g/kg alfalfa meal. Feed and water were offered ad-libitum throughout the experiment. The different dietary levels of alfalfa meal had no significant effect on body weight change, egg production, egg weight, egg mass, feed conversion ratio, egg shell breaking strength, egg yolk triglyceride, fertility, hatchability of fertile eggs or hatchability of eggs set. The feed intake was decreased with 10 or 20 g/kg alfalfa meal levels in the diet. The eggshell weight was best in quails fed 20 g/kg alfalfa meal, and the egg yolk cholesterol was the lowest in quails fed 40 g/kg alfalfa meal. According to the results of this study the addition of 40 g/kg alfalfa meal in laying quail diets decreased the egg yolk cholesterol levels without adverse effect on performance.

Effect of Dietary Lipid-Lowering Drugs upon Plasma Lipids and Egg Yolk Cholesterol Levels of Laying Hens

1999 ◽  
Vol 47 (11) ◽  
pp. 4731-4735 ◽  
Author(s):  
Agnes V. Mori ◽  
Cassio X. Mendonça, ◽  
Cristiane O. F. Santos
Keyword(s):  
Plasma Lipids ◽  
Laying Hens ◽  
Egg Yolk ◽  
Dietary Lipid ◽  
Lipid Lowering ◽  
Lipid Lowering Drugs ◽  
Cholesterol Levels ◽  
Yolk Cholesterol

EFFECT OF AN ANTIBIOTIC ON LIPID FRACTIONS IN PLASMA AND EGG YOLK OF LAYING HENS

1963 ◽  
Vol 41 (10) ◽  
pp. 2171-2175
Author(s):  
P. J. Lupien ◽  
F. A. Vandenheuvel ◽  
W. G. Hunsaker ◽  
G. V. Hatina
Keyword(s):  
Egg Production ◽  
Species Differences ◽  
Laying Hens ◽  
Plasma Cholesterol ◽  
Egg Yolk ◽  
Human Beings ◽  
Cholesterol Levels ◽  
Lipid Fractions ◽  
Egg Yolks ◽  
Yolk Cholesterol

Supplementation of the basal ration of laying hens with 0.001, 0.005, and 0.01% neomycin sulphate did not produce any significant changes in the weight of the hens, their eggs, or egg yolks, nor did it alter egg production. Supplemental neomycin caused no significant changes in levels of plasma cholesterol. Plasma and yolk lipid levels varied considerably within as well as between groups of hens. Plasma squalene/plasma cholesterol and yolk squalene/yolk cholesterol ratios were approximately the same, indicating the presence of 250 times more cholesterol than squalene. Plasma squalene/yolk squalene and plasma cholesterol/yolk cholesterol ratios showed that both components were approximately 13 times more concentrated in the yolk than in the plasma. The variable plasma cholesterol levels for rats, rabbits, mice, human beings, as well as the laying hen, treated with neomycin, are suggestive of species differences in response.

scholarly journals Egg Quality Parameters, Production Performance and Immunity of Laying Hens Supplemented with Plant Extracts

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 975
Author(s):  
Muhammad Ammar Dilawar ◽  
Hong Seok Mun ◽  
Dhanushka Rathnayake ◽  
Eun Ju Yang ◽  
Ye Seul Seo ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Proximate Composition ◽  
Laying Hens ◽  
Egg Quality ◽  
Egg Yolk ◽  
Cholesterol Content ◽  
Production Performance ◽  
Dependent Manner ◽  
Yolk Cholesterol ◽  
Dietary Treatments

This study examined the effects of Mentha arvensis (MA) and Geranium thunbergii (GT) extracts in drinking water on the production performance, egg quality, cholesterol content of egg yolk, proximate composition, and sensory qualities of egg and immunity parameters in laying hens. Ninety-six 28-week-old Hy-Line Brown layers were randomly divided into four dietary treatments for 16 weeks. The dietary treatments were (1) control, (2) T1 (0.01% 1 MA:1 GT), (3) T2 (0.05% 1 MA:1 GT), and (4) T3 (0.1% 1 MA:1 GT). Egg production increased significantly with increasing levels of MA and GT. The egg weight was increased in T2, and the feed intake was highest in T2 and T3 (p < 0.05). The Haugh unit and egg shape index were significantly better in T3 and the control than with other treatments (p < 0.05). The content of yolk cholesterol was significantly lower (p < 0.05) in T2 and T3. On the other hand, there were no significant differences in the egg proximate composition. A significant increase in the serum interleukin 6 (IL-6), tumor necrosis factor (TNFα) and immunoglobulins (IgG and IgA) concentration was observed in the birds fed plant extracts when compared to the control. On average, T2 and T3 showed significantly lower (p < 0.05) concentrations of NH3 gas from the feces as compared to the control. This study suggests that MA and GT supplementation could improve the laying performance, egg quality, and immunity, and decrease the egg yolk cholesterol content in a dose-dependent manner.

scholarly journals Dietary Supplementation of Probiotic Lactobacillus acidophilus Modulates Cholesterol Levels, Immune Response, and Productive Performance of Laying Hens

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1588 ◽  
Author(s):  
Abdulaziz A. Alaqil ◽  
Ahmed O. Abbas ◽  
Hossam S. El-Beltagi ◽  
Hanaa. K. Abd El-Atty ◽  
Gamal M. K. Mehaisen ◽  
...  
Keyword(s):  
Immune Response ◽  
Lactobacillus Acidophilus ◽  
Laying Hens ◽  
Density Lipoprotein ◽  
Dietary Supplementation ◽  
Egg Yolk ◽  
Egg Mass ◽  
Productive Performance ◽  
Cholesterol Levels ◽  
Yolk Cholesterol

This study examines the effect of dietary supplementation with Lactobacillus acidophilus (LA) on the cholesterol levels, immune response, and productive performance of laying hens. A total of 216, 40-week-old, commercial Hy-Line brown chicken layers were randomly assigned into four treatment groups (18 birds × three replicates per group) and fed diet supplemented with 0 (control), 1 × 109, 21 × 109, and 31 × 109 colony forming units (CFUs) of Lactobacillus acidophilus (LA) per kg of feed for six consecutive weeks. Results show that plasma triglycerides, low-density lipoprotein (LDL) and total cholesterols became lesser, while high-density lipoprotein (HDL) cholesterol became higher in LA-supplemented groups compared to the control. In addition, a significant reduction occurred in the liver and egg yolk cholesterol by LA supplementation. Moreover, the immunological parameters including antibody titer against sheep red blood cells (SRBCs), phytohemagglutinin (PHA)-wattle swelling test, and T- & B-lymphocyte proliferation were enhanced in laying hens supplemented with LA compared to the control hens. While the heterophil to lymphocyte (H/L) ratio decreased with LA supplementation, indicating low stress conditions in the treated hens. These positive effects for LA were further reflected on the productive performance of laying hens and improved egg production, egg weight, egg mass, and feed efficiency. Our findings indicate that LA probiotic could be recommended in laying hens’ diets for lowering egg yolk cholesterol with positive impacts on health and performance.

EFFECT OF AN ANTIBIOTIC ON LIPID FRACTIONS IN PLASMA AND EGG YOLK OF LAYING HENS

1963 ◽  
Vol 41 (1) ◽  
pp. 2171-2175
Author(s):  
P. J. Lupien ◽  
F. A. Vandenheuvel ◽  
W. G. Hunsaker ◽  
G. V. Hatina
Keyword(s):  
Egg Production ◽  
Species Differences ◽  
Laying Hens ◽  
Plasma Cholesterol ◽  
Egg Yolk ◽  
Human Beings ◽  
Cholesterol Levels ◽  
Lipid Fractions ◽  
Egg Yolks ◽  
Yolk Cholesterol

Supplementation of the basal ration of laying hens with 0.001, 0.005, and 0.01% neomycin sulphate did not produce any significant changes in the weight of the hens, their eggs, or egg yolks, nor did it alter egg production. Supplemental neomycin caused no significant changes in levels of plasma cholesterol. Plasma and yolk lipid levels varied considerably within as well as between groups of hens. Plasma squalene/plasma cholesterol and yolk squalene/yolk cholesterol ratios were approximately the same, indicating the presence of 250 times more cholesterol than squalene. Plasma squalene/yolk squalene and plasma cholesterol/yolk cholesterol ratios showed that both components were approximately 13 times more concentrated in the yolk than in the plasma. The variable plasma cholesterol levels for rats, rabbits, mice, human beings, as well as the laying hen, treated with neomycin, are suggestive of species differences in response.

scholarly journals Egg quality and coccidiosis infestation in three production systems for laying hens

2021 ◽  
Vol 43 ◽  
pp. e53125
Author(s):  
Reza Vakili ◽  
Ahmad Salahshour ◽  
Ali Zanganeh
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Production Systems ◽  
Egg Yolk ◽  
Organic Production ◽  
Cholesterol Concentration ◽  
Egg Mass ◽  
Outdoor Area ◽  
Yolk Cholesterol

A total of 240 white Shaver laying hens from 22 to 34 weeks of age were assigned to 3 treatments and 5 replications. The treatments included: i) Conventional (hens were kept in experimental building without access to outdoor area and fed with the conventional diet), ii) Semi-organic (hens were kept in experimental building with access to outdoor area and fed with the organic diet plus amino acids and vitamin-minerals supplement), and iii) Organic (hens were kept in experimental building with access to outdoor and fed with the organic diet). The results showed statistically significant differences in the feed intake, egg production, egg mass, egg weight, and change body weight(g) means among the treatments (p < 0.05). The hens kept in the organic treatment had fecal highest contain of oocytes coccidia (p < 0.05). The yolk color index and shell strength in the organic treatment significantly increased in comparison with that of other treatments (p < 0.05). The highest HDL was in the semi-organic and organic treatments (p < 0.05). The lowest egg yolk cholesterol concentration was found in hens kept in the semi-organic and organic treatments (p < 0.05). It is concluded that organic production system is useful for improving egg quality.

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