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.

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.

Effect of Water Extract of Two Leaves (Allium sativum and Sauropus androgynus) on Egg Production and Yolk Cholesterol Levels in Egg Laying Hens

2017 ◽  
Vol 16 (7) ◽  
pp. 482-487 ◽  
Author(s):  
I Gusti Nyoman Gde Bidura ◽  
Ida Bagus Gaga Partama ◽  
Budi Rahayu Tanama Putri ◽  
Ni Luh Watiniasih
Keyword(s):  
Egg Production ◽  
Allium Sativum ◽  
Laying Hens ◽  
Water Extract ◽  
Egg Laying ◽  
Effect Of Water ◽  
Cholesterol Levels ◽  
Yolk Cholesterol

scholarly journals Effect of Feeding Achiote Seed on Egg-Yolk Pigmentation

1969 ◽  
Vol 46 (2) ◽  
pp. 91-96
Author(s):  
F. T. Landagora
Keyword(s):  
Drinking Water ◽  
Puerto Rican ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Yolk ◽  
Egg Yolks ◽  
Orange Color ◽  
Effect Of Feeding ◽  
Basal Ration

The yolk-coloring effect of "achiote" seed was investigated. Hens fed a ration supplemented with whole achiote seed laid eggs with deep-colored yolks. The red-orange color that was observed in the egg yolks of the achiote group persisted in both fresh and boiled eggs. Ground achiote seed fed to laying hens did not impart color to the egg yolks when added to the basal ration or when mixed with the drinking water given. The addition of whole achiote seed to the ration fed to laying hens not only colored the egg yolks more deeply, but also increased egg production. Since Puerto Rican consumers prefer eggs with deeper colored yolks this rinding has potential commercial significance.

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.

Effects of dietary algal docosahexaenoic acid oil supplementation on fatty acid deposition and gene expression in laying Leghorn hens

2004 ◽  
Vol 142 (6) ◽  
pp. 683-690 ◽  
Author(s):  
C. H. CHENG ◽  
T. F. SHEN ◽  
W. L. CHEN ◽  
S. T. DING
Keyword(s):  
Transcription Factors ◽  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Acid Deposition ◽  
Egg Production ◽  
Laying Hens ◽  
Regulatory Element ◽  
Egg Yolk ◽  
Total Fatty Acids ◽  
Egg Yolks

The purpose of the current study was to determine the effects of dietary docosahexaenoic acid (DHA) on fatty acid deposition in egg yolk and various tissues of laying Leghorn hens, and on the expression of hepatic lipogenesis-related transcription factors. There were three treatments with 10 Leghorn hens per treatment. Diets were based on maize-soybean meal (ME: 12 MJ/kg; CP: 171 g/kg; Ca: 34 g/kg) supplemented with 0 (plus 20 g butter/kg), 5 g (plus 15 g butter/kg) or 20 g algal DHA oil/kg. The egg production of the birds was not affected by dietary DHA oil (P>0·05). The DHA content in egg yolks of the laying hens increased significantly (P<0·01) with the dietary supplementation of DHA. The DHA content of the total fatty acids in the egg yolk of laying hens was 4±16, 11±43 and 20±90 g/kg for 0, 5 and 20 g/kg DHA treatments, respectively for the first week, and 6±16, 18±49 and 31±86 g/kg for the second week. Therefore, algal DHA oil can be utilized by laying Leghorn hens to enhance egg yolk DHA content and produce high DHA eggs. The concentrations of triacylglycerol (TG) and cholesterol in plasma of laying Leghorn hens were not affected by dietary DHA treatments (P>0·005). The DHA content in plasma and livers of laying hens was increased with the addition of DHA in the diet (P<0·05). The DHA content in the skeletal muscle of Leghorn hens was also increased with the increase in dietary DHA. The data indicate that dietary DHA oil can be incorporated into plasma, egg yolks and various tissues. The mRNA concentrations of the lipogenesis-related transcription factors, sterol regulatory element binding protein 1 (SREBP1) and SREBP2, in the livers of laying Leghorn hens were not affected by the supplement of algal DHA oil for 2 weeks, suggesting that the expressions of these transcription factors are tightly controlled and not sensitive to DHA treatments in laying hens.

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