Effect of Dietary Animal Tallow and Vegetable Oil on Fatty Acid Composition of Egg Yolk, Adipose Tissue and Liver of Laying Hens

Sim, J. S.; Bragg, D. B.; Hodgson, G. C.

doi:10.3382/ps.0520051

Cited by 40 publications

(19 citation statements)

References 17 publications

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“…(Scott et al 1969), less food being consumed on the higher-energy diets (Tables I and 3 These results are similar to those obtained by Lall and Slinger (19'73). However, Sim et al (1973) Craig and Beare (1967) and Morhauer et al (1967). This situation is different from that noted in tissues where high levels of erucic acid in the diet resulted in correspondingly high levels of this fatty acid in various tissues (Salmon 1969a,b;Walker et al 1970: Vostmann et al1973b …”

Section: Discussionmentioning

confidence: 54%

The Influence of High and Low Erucic Acid Rapeseed Oils on the Productive Performance of Laying Hens and on the Lipid Fraction of Egg Yolk

Vogtmann¹,

Clandinin²,

Hardin³

1974

Can. J. Anim. Sci.

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Section: Discussionmentioning

confidence: 54%

The Influence of High and Low Erucic Acid Rapeseed Oils on the Productive Performance of Laying Hens and on the Lipid Fraction of Egg Yolk

Vogtmann¹,

Clandinin²,

Hardin³

1974

Can. J. Anim. Sci.

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“…Studies confirmed that designer eggs rich in Omega-3 fatty acids though rich in cholesterol do not provoke plasma cholesterol production instead suppress the low-density lipoprotein (LDL)-cholesterol production and increase the high-density lipoprotein (HDL)-cholesterol production (Sim et al, 1973).…”

Section: Fatty Acid Contentmentioning

confidence: 66%

“…Studies of the eggs during storage indicated that the shelf life of the enriched eggs was comparable to that of typical eggs (Sim et al, 1973). Many Omega-3 fatty acid-enhanced eggs are available in the U.S. market under various brand names such as Gold Circle Farms, Egg Plus, and the Country Hen Better Eggs (Sim, 1990).…”

Section: Fatty Acid Contentmentioning

confidence: 99%

“…Thus, research into lowering egg cholesterol has centered mostly on diet and pharmacological intervention (drugs). Drugs have been successful in lowering egg cholesterol by as much as 50% (Sim et al, 1973). Drugs lower cholesterol in the egg by either inhibiting the synthesis of cholesterol in the hen or by inhibiting the transfer of cholesterol from the blood to the developing yolk on the ovary.…”

Section: Fatty Acid Contentmentioning

confidence: 99%

“…The use of Omega-3 fatty acid rich eggs, showed a reduction in plasma and liver total cholesterol produced by 20 and 40%, respectively (Sim et al, 1973).…”

Section: Fatty Acid Contentmentioning

confidence: 99%

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Importance of designer eggs for the Nigerian population

Dike¹

2014

Afr. J. Agric. Res.

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Epidemiological studies have led to recommendations that people should consume at least two servings of fruit and three servings of vegetable daily for healthy living but majority of Nigerians falls well short of meeting these guidelines. Hence, there is a need to make up for this shortage. Through studies, it has been established that in addition to being a natural functional food, the egg's nutrient content can be altered by designing the feed given to the chickens thus resulting in the production of designer eggs. A crucial feature of these designer eggs is the synergistic combination of healthy Omega-3 fatty acids with major antioxidants, Vitamin E and lutein, as an important approach to the improvement of the human diet. These eggs will not be able to replace vegetable and fruits as a major source of natural antioxidants and fish products but can substantially improve the diet, especially in a country like Nigeria, significantly contributing to the recommended daily intake of essential nutrients. Thus, this study reviews the importance of designer eggs in the Nigerian context.

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Effect of soy oil supplementation and protein level in laying hen diets on praecaecal nutrient digestibility, performance, reproductive performance, fatty acid composition of yolk fat, and on other egg quality parameters

Dänicke¹,

Halle

Jeroch³

et al. 2000

Eur. J. Lipid Sci. Technol.

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An experiment was carried out with laying hens in the age of 22—45 weeks to examine the effects of added soy oil (0%, 3.5%, 7%, 10.5%, and 14%) and dietary protein level (13.2% and 16.3%) on laying and reproductive performance, fatty acid composition of yolk fat, and other egg quality parameters. Moreover, digestibility of nutrients and of energy was determined by using a marker technique. Laying intensity and feed intake were not influenced by dietary treatments whereas egg weight and daily egg mass production were significantly improved by soy oil addition in a non‐linear related manner. The feed conversion ratio reached a minimum at soy oil proportions between 3.5% and 10.5%. Reproductive performance in terms of fertilized eggs, hatchability, and mortality of chicks was not affected by dietary treatments. The increase of egg weights due to soy oil addition was accompanied by a simultaneous increase in the proportion of albumen and a decrease of yolk and shell percentage. Palmitic acid (C16:0) and oleic acid (C18:1) proportions in yolk fat decreased as soy oil addition was increased whereas the proportions of linoleic acid (C18:2 n‐6), linolenic acid (C18:3 n‐3), and docosahexaenoic acid (C22:6 n‐3) were increased at the same time. Praecaecal digestibility of crude fat and fatty acids of the diets were non‐linearly improved by soy oil addition. Digestibility of crude protein and amino acids were not affected by either protein content of the diet or by soy oil supplementation. In conclusion, a decrease in dietary protein content from 16.3% to 13.2% did not negatively influence performance of hens and egg quality under the experimental conditions applied. Soy oil addition improved egg quality.

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Effect of Dietary Animal Tallow and Vegetable Oil on Fatty Acid Composition of Egg Yolk, Adipose Tissue and Liver of Laying Hens

Cited by 40 publications

References 17 publications

The Influence of High and Low Erucic Acid Rapeseed Oils on the Productive Performance of Laying Hens and on the Lipid Fraction of Egg Yolk

The Influence of High and Low Erucic Acid Rapeseed Oils on the Productive Performance of Laying Hens and on the Lipid Fraction of Egg Yolk

Importance of designer eggs for the Nigerian population

Effect of soy oil supplementation and protein level in laying hen diets on praecaecal nutrient digestibility, performance, reproductive performance, fatty acid composition of yolk fat, and on other egg quality parameters

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