scholarly journals Effect of time of oviposition on egg quality characteristics in cages and in a litter housing system

2011 ◽  
Vol 50 (No. 3) ◽  
pp. 129-134 ◽  
Author(s):  
E. Tůmová ◽  
T. Ebeid
Keyword(s):  
Shell Thickness ◽  
Laying Hens ◽  
Egg Quality ◽  
Early Morning ◽  
Quality Characteristics ◽  
Housing System ◽  
Egg Weight ◽  
Housing Systems ◽  
Cage System ◽  
Eggshell Quality

Two experiments were carried out to investigate the effect of the time of oviposition on egg quality characteristics in two different housing systems (cages vs. litter). ISA brown hens from 20 to 64 weeks of age were housed in battery cages (550 cm<sup>2</sup>/hen, 19 526 laying hens in the house) and on deep litter (7 hen/m<sup>2</sup>, 4 652 laying hens in the house). In both houses, eggs were collected daily at three oviposition times 06:00, 10:00 and 14:00 h. Every four weeks, 90 eggs for each house (30 eggs for each oviposition time) were used for egg quality assessment. The results indicated that in cages the highest percentages (P &le; 0.001) of normal (74.47%), non-standard (0.85%) and cracked (1.80%) eggs were laid in the early morning (06:00 h). On deep litter, however, the highest percentages (P &le; 0.05) of normal sound eggs were produced at10:00 h (35.43%) and at14:00 h (33.03%). In the cage system, the heaviest eggs (63.01 g) were laid in the early morning (06:00 h) and the highest shell percentage (10.33%) was in eggs laid in the afternoon and also at 10:00 h (10.31%). On the other hand, in the litter housing system, the time of oviposition had no significant effect on egg weight and eggshell quality characteristics except for shell thickness. Morning eggs had greater shell thickness (0.398 mm) than afternoon eggs (0.390 mm). In cages and on litter, statistically significant differences in albumen height, albumen index and Haugh Units were observed between early morning eggs and afternoon eggs and data showed a pattern of relatively higher albumen quality for eggs collected in the afternoon in both systems. &nbsp;

scholarly journals The Effect of the Type of Alternative Housing System, Genotype and Age of Laying Hens on Egg Quality

2018 ◽  
Vol 18 (2) ◽  
pp. 541-556 ◽  
Author(s):  
Zofia Sokołowicz ◽  
Józefa Krawczyk ◽  
Magdalena Dykiel
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Housing System ◽  
Color Intensity ◽  
Egg Weight ◽  
Blood Spots ◽  
Alternative Housing ◽  
Housing Systems ◽  
System Type ◽  
Eggshell Color

Abstract The present study investigated the effect of the type of alternative housing system, and genotype and age of laying hens on physical traits of egg shell and contents. It was demonstrated that alternative housing system type influenced egg weight and shape, and eggshell color and yolk color intensity. Eggs from free-range system were heavier and were characterized by more intense yolk color. No effect of alternative housing system type on albumen height, value of Haugh units (HU value) and presence of meat and blood spots was noted. Hen genotype had a significant effect on egg weight and eggshell color intensity in each of the alternative housing systems tested in this study. Hy-line Brown hens laid heavier eggs than hens of native breeds. Genotype was also observed to affect egg content traits (albumen height, HU values and presence of meat and blood spots). Independently of the type of alternative housing system, most blood and meat spots were noted in eggs of hens laying brown-shelled eggs, i.e. R-11 and Hy-line Brown layers. Laying hen age significantly impacted on egg weight, yolk percentage, eggshell traits (color intensity, weight, thickness and strength) and egg content traits (HU value, yolk weight and color intensity, presence of meat and blood spots). Older hens laid heavier eggs with a greater yolk percentage but with thinner eggshell.

scholarly journals Eggshell characteristics and cuticle deposition in three laying hen genotypes housed in enriched cages and on litter

2017 ◽  
Vol 63 (No. 1) ◽  
pp. 11-16 ◽  
Author(s):  
M. Ketta ◽  
E. Tumova
Keyword(s):  
Laying Hens ◽  
Quality Parameters ◽  
Laying Hen ◽  
Housing System ◽  
Eggshell Thickness ◽  
System Effect ◽  
Egg Weight ◽  
Housing Systems ◽  
Eggshell Quality ◽  
System P

The objective of the present study was to compare the eggshell characteristics and cuticle deposition of Lohmann Brown, Hy-Line Silver Brown, and Isa Brown layers kept in two different housing systems. The three laying hen genotypes were housed in enriched cages (100 hens, 750 cm<sup>2</sup>/hen, 10 hens/cage) and in littered pens (100 hens, 9 hens/m<sup>2</sup>, 10 hens/pen). The experiment was carried out in weeks 40–56 of hens age. Non-significant interactions of genotype and housing system for eggshell quality parameters and cuticle deposition were detected in this study. Egg weight was significantly affected by genotype (P ≤ 0.001) and housing system (P ≤ 0.043). The heaviest eggs were laid by Lohmann Brown, while the lightest eggs were produced by Hy-Line Silver Brown. Eggshell strength was not affected by genotype and housing system, however, genotype had a significant effect on eggshell thickness (P ≤ 0.033). Isa Brown eggs had thicker eggshells compared to Lohmann Brown and Hy-Line Silver Brown. However, a non-significant effect of housing system on eggshell thickness was observed. Eggshell percentage was significantly affected by both genotype and housing system. Genotype of laying hens had a significant effect on cuticle deposition; significantly higher cuticle deposition was observed in Lohmann Brown eggs (P ≤ 0.001). It could be concluded that genotype had a significant effect on eggshell quality parameters and cuticle deposition. However, the housing system effect was less important in these characteristics.

scholarly journals Effects of Genotype, Age and Their Interaction on Egg Quality in Brown-Egg Laying Hens

2009 ◽  
Vol 78 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Lukáš Zita ◽  
Eva Tůmová ◽  
Ladislav Štolc
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Quality Characteristics ◽  
Egg Laying ◽  
Eggshell Thickness ◽  
Egg Weight ◽  
Eggshell Quality ◽  
Ad Libitum ◽  
Quality Measurements

The experiment compared the effects of strain and age on egg quality characteristics in ISA Brown, Hisex Brown and Moravia BSL brown-egg laying hens. One hundred and eight ISA Brown hens, forty-five Hisex Brown and forty-five Moravia BSL 20 to 60 weeks old were housed in conventional cages (550 cm2 per hen). Feed and water were available ad libitum. Eggs were sampled at 21-day intervals, every collecting week 150 eggs per genotype in three age periods, from 20 to 26 weeks, 37 to 43 weeks and 54 to 60 weeks of age. A total of 4,050 eggs were examined. Egg quality characteristics were affected by genotype and age. Egg weight, yolk weight and percentage, Haugh Units increased with the hens’ age in all genotypes, but albumen and eggshell percentage decreased, eggshell thickness and strength improved with age. The highest egg weight (65.3 g) and yolk quality (yolk index 45.1%) were found in Moravia BSL at the end of the experiment. In contrast, the best albumen quality (albumen percentage 60.0) values were in Hisex Brown and the eggshell quality measurements (eggshell thickness 0.38 mm) were higher in ISA Brown.

scholarly journals Interaction between housing system and genotype in relation to internal and external egg quality parameters

2011 ◽  
Vol 56 (No. 11) ◽  
pp. 490-498 ◽  
Author(s):  
E. Tůmová ◽  
M. Englmaierová ◽  
Z. Ledvinka ◽  
V. Charvátová
Keyword(s):  
Quality Indicators ◽  
Egg Quality ◽  
Significant Negative Correlation ◽  
Quality Parameters ◽  
Housing System ◽  
Eggshell Thickness ◽  
Pore Density ◽  
Egg Weight ◽  
Housing Systems ◽  
Eggshell Quality

The effect of three housing systems (conventional cages, enriched cages and litter) on egg quality parameters was evaluated in two experiments with four brown laying strains ISA Brown, Hisex Brown, Bovans Brown and Moravia BSL. During 40 weeks of lay the total number of 7200 eggs was produced and analysed for egg weight, egg component weight and eggshell quality indicators. In 60 eggs, pore density in the small-end, large-end and equatorial areas was determined. Significant interactions between genotype and housing were found out in egg weight (P &le; 0.001), yolk and albumen weight (P &le; 0.001) and yolk colour (P &le; 0.001). Haugh units were the highest in eggs laid in cages and the lowest in the ISA Brown strain. Eggshell quality indicators were affected more by genotype than by housing. The interaction between genotype and housing was not significant for eggshell thickness but it was significant for eggshell weight and strength. Although eggshell thickness was lower in eggs produced in cages, eggshell strength was higher. A significant negative correlation was found out between pore density and housing system. Results of the study suggest that the ability of a strain to produce eggs of high quality in a particular housing system should be considered, even within brown strains.

scholarly journals The effect of genotype, housing system and egg collection time on egg quality in egg type hens

2009 ◽  
Vol 54 (No. 1) ◽  
pp. 17-23 ◽  
Author(s):  
E. Tůmová ◽  
M. Skřivan ◽  
M. Englmaierová ◽  
L. Zita
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Quality Characteristics ◽  
The Other ◽  
Housing System ◽  
Egg Weight ◽  
Collection Time

The effect of egg collection time, genotype and housing system on egg quality characteristics was evaluated in an experiment with laying hens of ISA Brown, Hisex Brown and Moravia housed on litter and in conventional cages. The experiment was conducted from 20 to 64 weeks of age. Eggs were collected and recorded daily at 06:00, 10:00 and 14:00 h. Once every four weeks, two days in row, all eggs laid from each pen or cage at each oviposition time were used for egg quality analyses (total 1 694 eggs). Egg collection time was dependent on genotype. Significantly more eggs were laid at 06:00h by ISA Brown while Moravia laid eggs mainly at 10:00 and 14:00 h. Housing on litter postponed the time of oviposition. The highest egg weight (62.09 g) was recorded in Hisex Brown genotype placed in cages and at 06.00 h. Interactions of all factors were determined also in Haugh units (<I>P</i> ≤ 0.041). Eggshell strength was affected by housing system, genotype and egg collection time (<I>P</i> ≤ 0.049). It was higher in cages than on litter, and lower in the Moravia genotype in comparison with the other two strains.

scholarly journals Results of egg production in different housing systems

2007 ◽  
Vol 23 (5-6-1) ◽  
pp. 497-502 ◽  
Author(s):  
L. Peric ◽  
N. Milosevic ◽  
N. Tolimir ◽  
D. Zikic
Keyword(s):  
Egg Production ◽  
Housing System ◽  
Housing Density ◽  
Egg Weight ◽  
Percentage Mortality ◽  
Housing Systems ◽  
Production Parameters ◽  
Cage System ◽  
Main Production ◽  
Floor System

The aim of this work was to present the production results of laying hens kept in different housing systems - conventional cages with different stocking densities, enriched cages or in houses with a range. The used hybrid was Shaver 579 (564 birds). The main production parameters were monitored: No. of laid eggs, laying percentage, mortality rate, feed intake, egg weight and number of culled eggs. Data were analyzed by ANOVA followed by t-test. Main production parameters in production of table eggs were significantly different depending on the housing system. The best results were realized in cage system with lower housing density, and the worst results in hens housed in floor system on free range.

scholarly journals Effect of housing system and age of laying hens on eggshell quality, microbial contamination, and penetration of microorganisms into eggs

2018 ◽  
Vol 63 (No. 2) ◽  
pp. 51-60 ◽  
Author(s):  
J. Vlčková ◽  
E. Tůmová ◽  
M. Ketta ◽  
M. Englmaierová ◽  
D. Chodová
Keyword(s):  
Escherichia Coli ◽  
Storage Time ◽  
Microbial Contamination ◽  
Laying Hens ◽  
Housing System ◽  
Free Range ◽  
Housing Systems ◽  
Eggshell Quality ◽  
Number Of Microorganisms ◽  
And Storage

Hens of the laying hybrid ISA Brown were used in the study with the objective to evaluate eggshell quality, microbial contamination of eggshells, and penetration of microorganisms into the egg content in different housing systems (enriched cage: 60 hens, 10 hens per cage, 750 cm<sup>2 </sup>per hen vs free range: 60 hens, 9 hens per m<sup>2</sup>) and at different hen ages (26 vs 51 weeks) during storage time (0, 2, 7, 14, and 21 days). A significant interaction between the housing system and age was observed in egg weight and most of eggshell quality measurements. However, microbial contamination and penetration were affected mostly by the housing system and storage time. The numbers of Escherichia coli (P &lt; 0.001, 4.51 vs 2.75 log cfu/eggshell) and Enterococcus (P &lt; 0.001, 2.56 vs 1.11 log cfu/eggshell), and the total number of microorganisms (P &lt; 0.001, 5.04 vs. 3.65 log cfu/eggshell) were higher in free range eggs compared to enriched cage eggs, respectively. The counts of Escherichia coli (P &lt; 0.001, 4.23 vs 2.91 log cfu/eggshell) and Enterococcus (P &lt; 0.001, 2.31 vs 1.27 log cfu/eggshell) decreased with storage time. A positive correlation between the total number of pores and penetration of Escherichia coli in both housing systems was observed in the albumen. It can be concluded that the housing system and age of laying hens significantly affected eggshell quality. Microbial contamination presumably affects the penetration of microorganisms. The correlation between the number of pores and penetration is assumed to be affected by the microbial species.

scholarly journals Quality of Laying Hen Eggs During Storage Depending on Egg Weight and Type of Cage System (Conventional vs. Furnished Cages)

2014 ◽  
Vol 14 (3) ◽  
pp. 707-719 ◽  
Author(s):  
Justyna Batkowska ◽  
Antoni Brodacki ◽  
Sebastian Knaga
Keyword(s):  
Storage Time ◽  
Egg Quality ◽  
Housing System ◽  
Weight Class ◽  
Quality Traits ◽  
Egg Weight ◽  
Cage System ◽  
Relationship Of ◽  
The Relationship

AbstractThe aim of the study was to demonstrate the relationship of egg weight and egg quality traits with storage time and type of cages in which the laying hens were kept. The material consisted of 960 eggs from same age Hy-Line Brown hens kept in conventional and furnished cages at the same time in one building. The eggs were randomly collected, sorted by weight (S, M, L and XL), and stored under controlled temperature and humidity conditions. All eggs were weighed on days 1 (day of laying) and 28 of the experiment. During the same time they were candled to determine depth of the air cell, and 60 eggs from each subgroup were chosen to evaluate quality traits (egg weight and egg specific gravity), shell characteristics (shell strength, weight, thickness and density), and interior quality of eggs (albumen height and pH, yolk colour, weight and pH). The eggs (especially those from the heavier weight classes, XL and L) from hens reared in furnished cages were characterized by significantly smaller quality changes (egg weight loss, yolk proportion, albumen height, Haugh units) due to storage time in relation to those from hens kept in conventional cages. This fact could point to their better suitability for consumption. In addition to the housing system, changes occurring in eggs during storage should also be considered in terms of their weight class. Economically important egg traits (e.g. egg weight, shell strength) were better in eggs from furnished compared to conventional cages.

scholarly journals The Effect of Storage and Age of Hens on the Quality of Table Eggs

2017 ◽  
Vol 1 (1) ◽  
pp. 64-67 ◽  
Author(s):  
Lidija Perić ◽  
Mirjana Đukić Stojčić ◽  
Siniša Bjedov
Keyword(s):  
Storage Time ◽  
Laying Hens ◽  
Egg Quality ◽  
Quality Characteristics ◽  
Egg Weight ◽  
Processing Industry ◽  
Significant Negative Effect ◽  
Poultry Products ◽  
Negative Effect

AbstractQuality of poultry products, especially eggs, is a very important issue for the consumers and for the processing industry. The aim of the present study was to examine the interaction between the storage time and age of laying hens and their effect on the quality of table eggs. Eggs from 34 and 59- wk-old Bovans Brown hens were sampled and stored in the refrigerator for 1, 2, and 3 weeks. Significant effect of hen age (P<0.01) was found on egg weight, shell strength, albumen height and Haugh units (HU). Eggs from older hens had 2.58% higher mass compared to the eggs of young hens. Eggs from 59-weeks old hens had significantly lower shell strength (3.63 kg vs. 4.31 kg). Albumen height and HU were lower in eggs from the older hens compared to the young ones (5.7 mm vs. 7.11 mm for albumen height; 70.35 vs. 81.77 for HU). Significant negative effect of storage time was found on egg weight, albumen height, HU and yolk colour (P<0.01). The results indicated that egg quality characteristics monitored in this study decrease by hen age and during storage. The interaction effects between storage time and age of hens were significant only for yolk colour (P<0.05).

scholarly journals The Characteristics and Quality of Egg from Commercial Laying Hens Fed with Garlic (Allium Sativum) Supplemented Ration

2020 ◽  
Vol 21 (2) ◽  
pp. 98 ◽  
Author(s):  
Jein Rinny Leke ◽  
Erwin Wantasen ◽  
Florencia Sompie ◽  
Femy Hadidjah Elly ◽  
Ratna Siahan
Keyword(s):  
Shell Thickness ◽  
Allium Sativum ◽  
Laying Hens ◽  
Egg Quality ◽  
Laying Hen ◽  
Negative Effects ◽  
Shell Weight ◽  
Egg Weight ◽  
Garlic Powder

The research aimed to determine the characteristics and quality of egg of commercial laying hens fed ration supplemented with garlic (Allium sativum) powder. The research used Completely Randomized Design (CRD) with five treatments and four replicates (5 hens each) for a total of 100 brown laying hens strain MB 402. Garlic powder contained 24.62% crude protein, 38.81% fat, and 1.74% crude fiber. The treatments of garlic powder ration were 0, 2, 4, 6, and 8%. The treatments performed were dietary, with R0 = 100% based diet (BD); R1= 98% based diet (BD) + 2% garlic meal (GM); R2= 96% based diet (BD) + 4% GM, R3 = 94% based diet (BD) + 6% GM, R4 = 92% based diet (BD) + 8% GM. The study was conducted during eight (8) weeks. Collected data were quality, weight, shell weight, albumen weight and shell thickness of eggs. Data was analyzed with Analysis of Variance (ANOVA) and continued with Duncan’s Multiple Range Test (DMRT). The results showed that 8% garlic powder ration increased weight and albumen weight of eggs. There were no significant effect of treatments in yolk weight, shell weight and shell thickness of eggs. Garlic powder supplementation on laying hen ration affected egg weight and albumen weight. The addition of garlic powder on laying hen ration of up to 4% increased egg weight. Albumen weight increased until garlic powder supplementation of up to 8%. It is recommended the use of 8% garlic powder supplementation on lying hen ration without negative effects on egg quality.

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