Effect of egg shell color on some egg quality in table eggs during storage at refrigerator temperature

2016 ◽  
Author(s):  
Ali Aygün ◽  
Doğan Narinç
Keyword(s):  
Egg Quality ◽  
Shell Color ◽  
Refrigerator Temperature ◽  
Egg Shell

scholarly journals Dual-Purpose Poultry in Organic Egg Production and Effects on Egg Quality Parameters

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 897
Author(s):  
Marianne Hammershøj ◽  
Gitte Hald Kristiansen ◽  
Sanna Steenfeldt
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Quality Parameters ◽  
Egg Laying ◽  
High Yield ◽  
Meat Production ◽  
Dual Purpose ◽  
Shell Quality ◽  
Egg Shell ◽  
Genotype A

Egg laying genotypes have been selected for generations due to their high yield and egg quality, resulting in efficient feed utilization and low body weight; hence, they are not suitable for meat production. This imposes an issue for the male layer chicks, which are killed at one day old. Because of ethical and food waste concerns, the search for suitable dual-purpose genotypes in order to avoid euthanasia of male day-old chicks has intensified. The aim of the present study is to evaluate potential dual-purpose genotypes for their egg quality compared to a representative egg laying genotype. Three dual-purpose genotypes with divergent characteristics were evaluated: genotype A represented an experimental crossbreed based on a broiler type male and an egg layer female, genotype B was a pure breed, and genotype C was a crossbreed of a layer type. These were compared to a control genotype D, which was an egg layer. Eggs were collected six times during the period of 21–54 weeks of hen age, i.e., a total of 1080 shell eggs were analyzed. Examined parameters were weights of egg, shell, yolk, and albumen, by calculating their relative proportions. Shell quality was assessed by shell strength, shell stiffness, and shell thickness. Yolk quality was determined as yolk color and inclusions of blood and meat spots, and albumen quality was evaluated in terms of pH and dry matter (DM) content. The egg layer genotype produced the smallest eggs with least blood and meat spot inclusions compared to that produced by the three dual-purpose genotypes. Shell quality was superior for the layer genotype. However, the experimental genotype A laid eggs of comparable shell quality, albumen DM, and yolk weight, but also with the darkest and most red-yellow colored yolk. The two other dual-purpose genotypes produced eggs of low-medium quality. In conclusion, the genotype A could serve as dual-purpose genotype from an egg quality perspective.

scholarly journals The influence of strain and age on some egg quality parameters of commercial laying hens

2011 ◽  
Vol 27 (4) ◽  
pp. 1649-1658 ◽  
Author(s):  
D. Kocevski ◽  
N. Nikolova ◽  
A. Kuzelov
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Quality Parameters ◽  
Older Age ◽  
White Line ◽  
Egg Weight ◽  
Statistical Significant Difference ◽  
Significant Difference ◽  
Breeding Technology ◽  
Egg Shell

The experiment was conducted to evaluate the influence of strain and age on some egg quality parameters (egg weight and egg shell strength) of commercial laying hens. Layers of lines ISA Brown and DeKalb White were examined in period of nine months. Both lines were at same age (28 weeks) and were confined in common facility in battery cages. Laying hens were reared and fed according to standard breeding technology. Once a month 25 eggs of each line were taken to be examined for eggshell strength and egg weight, or in other words, total 450 table eggs were tested. Analises were done in Laboratory for testing egg quality by gaudges Egg Multi Tester EMT 5200 and Egg shell Gauge (Robotmation Co. Ltd., Tokyo, Japan) which have computerised equipment to examine quality and physical characteristics of eggs. Statistic analyses on results were done by computer sub-programme ANOVA and Fisher's LSD test to determine the level of statistical significant difference between examined factors. Egg weight was under significant impact of age (P ? 0,05), but not under the influence of strain, although eggs of ISA Brown line were insignificantly heavier than eggs of DeKalb White line. Eggs were heaviest at layers with older age, while they were lightest at younger birds. The results have shown significant differences (P ? 0,05) in eggshell strength compared to line influence (genotype) and months of age. Eggs from ISA Brown laying hens had much better and eggshell strength than those eggs from DeKalb White. Correlations between eggshell strength and egg weight were with significant (R < 0,05) negative value, which indicating that with increasing egg weight decreases of eggshell strength.

scholarly journals Effects of a short laying rest on postrest egg production and egg quality

1993 ◽  
Vol 2 (5) ◽  
pp. 437-445
Author(s):  
Tuomo Kiiskinen ◽  
Hilkka Hakatie
Keyword(s):  
Mass Production ◽  
Feed Efficiency ◽  
Egg Production ◽  
Egg Quality ◽  
Live Weight ◽  
Egg Mass ◽  
Whole Grain ◽  
Egg Weight ◽  
Egg Shell ◽  
Production Period

Two factorial trials, each including three commercial laying hybrids, were conducted to study the effects of a short laying rest on postrest performance of hens and on egg quality. A total of 1800 hens laying at 65% on an average (70 wks of age) were subjected to one of the following treatments: no rest (control, C) or feeding only whole-grain barley (WB) or fasting (F, Trial 1 only) until the rate oflay dropped to 0%, after which the birds were returned to the previous all-mash diet. The second laying period was six months. Egg production of the WB and F hens ceased within one week on an average and the birds were out of production for 10 days. Laying intensity during the second production period did not differ significantly between the treatments in each trial, but egg weight and daily egg mass production increased as a result of the rest treatments. The laying rest procedures reduced feed intake, improved feed efficiency and increased live weight significantly. Egg shell and albumen quality traits were significantly better in the laying rest groups than in the controls. Significant differences in performance and egg quality between the hybrids were mainly ascertained in Trial 2. The results suggest that a short laying rest is a feasible means of improving egg quality towards the end of the laying period. It can be accomplished successfully by feeding whole-grain barley.

scholarly journals PENGARUH PROBIOTIK DAN EKSTRAK DAUN KATUK (Sauropus androgynous) TERHADAP TEBAL KERABANG DAN HAUGH UNIT (HU) PUYUH PETELUR (Effect Of Probiotic and Sauropus androgynous Leaf Extract on Eggshell Thickness and Haugh Unit (HU) in Laying Quail)

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Novia Rahayu ◽  
Dwi Wijayanti ◽  
Nurul Frasiska
Keyword(s):  
Shell Thickness ◽  
Leaf Extract ◽  
Egg Quality ◽  
Quality Standards ◽  
Bacillus Sp ◽  
Eggshell Thickness ◽  
Treatment Groups ◽  
Probiotic Treatment ◽  
Egg Shell ◽  
Haugh Unit

Abstrak Penelitian bertujuan untuk mengetahui pengaruh pemberian ekstrak daun katuk (Sauropus androgynous) dalam ransum terhadap tebal kerabang dan haugh unit (HU). Enam puluh ekor puyuh petelur fase produksi dibagi menjadi 4 kelompok perlakuan : 1) T0 : ransum tanpa perlakuan, 2) T1 : ransum dengan perlakuan ekstrak daun katuk 3.5g/kg ransum, 3) T2 : ransum dengan perlakuan probiotik (Bacillus sp. dan Saccharomycess sp.), 4) T3 : ransum dengan perlakuan ekstrak daun katuk 3.5g/kg ransum + probiotik (Bacillus sp. dan Saccharomycess sp.). Hasil penelitian menunjukkan bahwa perlakuan tidak berpengaruh nyata terhadap tebal kerabang (P>0.05) dan haugh unit (HU) (P>0.05). Telur hasil penelitian dari semua perlakuan menunjukkan kondisi telur yang sesuai dengan standar kualitas tebal kerabang dan haugh unit (HU). ¬Kata Kunci : Ekstrak daun katuk, haugh unit, probiotik, puyuh, tebal kerabang Abstract The study aims to determine the effect of giving sauropus androgynous leaf extract in the ration on egg quality. Sixty quails laying in the production phase were divided into 4 treatment groups: 1) T0: rations without treatment, 2) T1 : rations with katuk leaf extract treatment 3.5g / kg ration, 3) T2 : rations with probiotic treatment (Bacillus sp. And Saccharomycess sp.), 4) T3 : ration with katuk leaf extract treatment 3.5g / kg ration + probiotics (Bacillus sp. and Saccharomycess sp.). The results showed that the treatment had no significant effect on egg shell thickness (P>0.05) and haugh unit (HU) (P>0.05). Eggs from all treatments showed the condition of eggs in accordance with the quality standards of the thickness of the shells and haugh units (HU). Keywords: Eggshell thickness, haugh unit, probiotics, quail, sauropus androgynous leaf extract

Assessing the response of hen weight, body composition, feather score, egg quality, and level of excreta nitrogen content to digestible balanced protein intake of laying hens

2018 ◽  
Vol 98 (4) ◽  
pp. 619-630 ◽  
Author(s):  
D. Kumar ◽  
C. Raginski ◽  
K. Schwean-Lardner ◽  
H.L. Classen
Keyword(s):  
Egg Production ◽  
Diet Composition ◽  
Laying Hens ◽  
Egg Quality ◽  
N Content ◽  
Shell Quality ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Egg Shell ◽  
Level Of Significance

Ideally balanced dietary protein is critical for laying hen egg production and feed efficiency, but also affects other important characteristics. This research was designed to study the nonegg production and feed intake response of Lohmann-LSL Lite hens to 550, 625, 700, 775, and 850 mg d−1 of amino acid balanced digestible lysine (Dlys) from 27 to 66 wk of age. Data collection included hen weight (HW), feather scoring, tissue weights, egg specific gravity, egg component weights, and excreta nitrogen (N) content. The experiment was a completely randomized design and level of significance was fixed at P ≤ 0.05. Hen weight (quadratic, Q), pectoralis muscle (absolute, % – Q), and abdominal fat (absolute – linear, L; % – Q) increased with increasing Dlys intake. Although gastrointestinal segment weights and lengths were affected by Dlys intake, interpretation of results was confounded by other aspects of diet composition. Hen feather score (L) and excreta N content (Q) increased, and egg shell quality (L) decreased with increasing Dlys intake. Absolute egg component weights increased with Dlys intake, but effects on proportional weights were Q and relatively minor. In conclusion, balanced Dlys intake affected a variety of practical nonproduction characteristics in laying hens.

scholarly journals The Influence of Rate of Production and Temperature on Egg Shell Color

1951 ◽  
Vol 30 (6) ◽  
pp. 815-817
Author(s):  
T.G. Culton ◽  
D.W. MacLaury ◽  
W.M. Insko
Keyword(s):  
Shell Color ◽  
Egg Shell

CORRELATED RESPONSES IN EGG QUALITY TRAITS TO SELECTION FOR EARLY BODY WEIGHT IN MEAT-TYPE CHICKENS

1972 ◽  
Vol 14 (3) ◽  
pp. 477-482 ◽  
Author(s):  
V. Buvanendran ◽  
E. S. Merritt
Keyword(s):  
Body Weight ◽  
Egg Quality ◽  
Correlated Response ◽  
Quality Traits ◽  
Correlated Responses ◽  
Egg Weight ◽  
Shell Color ◽  
Blood Spots ◽  
Selection For ◽  
Meat Type

The correlated responses in egg quality traits to selection for high early body weight were studied in seven meat-type populations comprising five selected and two control lines. Traits studied were specific gravity, egg weight, albumen height, Haugh units, shell color, egg shape, shell roughness, wrinkling and asymmetry, and incidence of blood spots, meat spots and double yolks. Significant (P < 0.05 or < 0.01) correlated changes, as determined by the regression of correlated response (egg quality traits) on primary response (body weight), were obtained for egg weight, albumen height, Haugh units, asymmetry of shell and blood spots. All but blood spots increased with selection for high body weight. Shell color showed a consistent trend towards a darker color with increasing body weight. Scores for roughness of shell and, with one minor exception, the incidence of double yolks, also showed consistent trends (positive) with increasing body weight. Estimates of genetic correlations, derived directly from intra-line genetic analyses of the six pedigreed populations in the experiment, were in most cases in reasonable agreement with realized estimates.

Hen performance, egg quality, and the sensory evaluation of eggs from SCWL hens fed dietary flax

1994 ◽  
Vol 74 (2) ◽  
pp. 347-353 ◽  
Author(s):  
L. J. Caston ◽  
E. J. Squires ◽  
S. Leeson
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Metabolizable Energy ◽  
Liver Fat ◽  
Flax Seed ◽  
Egg Weight ◽  
Commercial Strain ◽  
Egg Shell ◽  
Single Comb ◽  
Soybean Diet

Two hundred and twenty-five 19-wk-old Single Comb White Leghorn pullets of a commercial strain were fed diets containing either 0, 10 or 20% ground flax seed. Birds fed 20% dietary flax were smaller and ate more feed (P < 0.01). Hen performance in terms of egg production and egg-shell deformation was unaffected by dietary flax throughout the trial. Egg weight followed this trend until period 12, when control-fed hens laid significantly larger eggs (P < 0.01). The metabolizable energy of diets containing 10 and 20% ground flax was significantly less than that of the control corn-soybean diet (P < 0.01). Malondialdehyde levels in the liver of birds fed 20% dietary flax were moderately elevated, although this was not indicative of serious lipid peroxidation. Percentage liver fat was significantly lower in birds fed all levels of dietary flax (P < 0.05). There was a significant increase of N-3 fatty acids, and particularly linolenic acid, in the livers of birds fed all levels of dietary flax. The data from taste-panel studies involving fresh and stored eggs were somewhat inconclusive, although in general there was a slight perception of off-flavour in eggs from flax-fed birds. Key words: Hen performance, egg quality, dietary flax

scholarly journals Egg Shell Color in Crosses Between White- and Brown-Egg Breeds

1944 ◽  
Vol 23 (4) ◽  
pp. 259-265 ◽  
Author(s):  
G.O. Hall
Keyword(s):  
Shell Color ◽  
Egg Shell
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