EurekaMag
+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

The influence of the ration upon yolk color and vitamin A content of the egg yolk


The influence of the ration upon yolk color and vitamin A content of the egg yolk



U S Egg and Poultry Mag 40(5): 26-27, 56-58



Two groups of hens were fed all-mash rations which produce pale yolked eggs. White corn, ground wheat, ground oats, meat and bone meal, and salt were used. The one group received this ration alone while the other received an additional 2% of cod liver oil. A 3rd group received a ration containing yellow corn instead of white corn, and this group was allowed free access to blue grass range Eggs were saved for vitamin A assay after 28 days of feeding. The rat-feeding technic of Sherman and Smith was used in making the assays. The eggs produced by hens which received a ration including white corn and 2% of cod liver oil contained less than 20 units of vitamin A per gm., while those produced by hens on the ration including yellow corn and green grass had a vitamin A content of approximately 34 units per gm. It is suggested that it is much more practical for mid-western farmers to produce a uniformly richer colored yolk than that which now commands a premium on certain markets, because this work indicates that such eggs, produced under practical conditions, are higher in vitamin A than the paler yolks.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 025830557

Download citation: RISBibTeXText

Related references

Vitamin D content of ege yolk. 1. The effect of the ration of the hens on the vitamin D content of egg yolks. 2. The influence of various sources of vitamin D on the antirachitic value of egg yolk. 3. The antirachitic value of market eggs. U 8 Egg And Poultry Mag 40-54-(8)-58-(9)(7): 20-22, 56-57, 22-23, 22-23, 52, 54, 1934

The influence of yolk color intensity upon yolk shadow values, albumen quality and yolk color index Deposition and color intensity of abdominal fat of pullet carcasses. Poultry Science 40(4): 987-991, 1961

The effect of varying levels of vitamin A in the hen ration on the vitamin A content of the egg yolk, on hatchability and chick livability. Poultry Sci 16: 39-43, 1937

The Effect of Varying Levels of Vitamin A in the Hen Ration on the Vitamin A Content of the Egg Yolk, on Hatchability and on Chick Livability. Poultry Science 16(1): 39-43, 1937

Effects of dietary fat source on beta-carotene content in egg yolk and egg yolk color. Japanese Poultry Science 38(6): J160-J166, 2001

Effect of dietary fat on beta-carotene content in egg yolk and egg yolk color. Japanese Poultry Science 36(5): 329-335, 1999

Studies on egg yolk pigmentation. I. A comparison between visual scoring of yolk color and colorimetric assay of yolk carotenoids. Poultry Science 45(2): 287-296, 1966

Effects of vitamin D(3) -enriched diet on egg yolk vitamin D(3) content and yolk quality. Journal of Food Science 78(2): C178-C183, 2013

The fat-soluble vitamin content of hen's egg yolk as affected by the ration and management of the layers. Jour Biol Chem 72(2): 695-706, 1927

Replacement of yolk of the chicken embryo in ovo with fresh yolk or yolk varying in granule and cholesterol content. Avian Biology Research 8(4): 195-209, 2015

Regulation of vitamin A content and color of egg yolk through the feed. K Lantbrukshogskolan Statens Husdjursforsok Forhandsmeddelande 152: 23-25, 1962

Quality of output at different levels of nitrates and nitrites in poultry ration Effect on carotene and vitamin A content in the yolk.1. Povyshenie kachestva produktov ptitsevodstva Vsesoiuznaia ordena Lenina i ordena Trudovogo Krasnogo Znameni akademiia sel'skokhoziaistvennykh nauk imeni VI Lenina redaktsionnaia kollegiia: AI Smetnev i dr: 0, 1983

The influence of ambient pH on moisture content and yolk index of the hen's egg yolk. Poultrysci 45(2): 374-379, 1966

The Influence of Ambient pH on Moisture Content and Yolk Index of the Hen's Yolk. Poultry Science 45(2): 374-379, 1966

Yolk color characteristics xanthophyll availability and a model system for predicting egg yolk color using beta apo 8 carotenal and canthaxanthin. Poultry Science 57(3): 624-629, 1978