Effects of laying hens housing system on laying performance, egg quality characteristics, and egg microbial contamination

Englmaierová, M.; Tůmová, E.; Charvátová, V.; Skřivan, M.

doi:10.17221/7585-cjas

Cited by 75 publications

(92 citation statements)

References 28 publications

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“…Eggs were heavier in enriched cages (P ≤ 0.043) compared to the litter system (Table 1). These results correspond with the findings of Englmaierova et al (2014) who detected heavier eggs in the cage system compared to litter. On the other hand, Tumova and Ebeid (2005) and Pistekova et al (2006) detected heavier eggs in litter systems compared to conventional cages.…”

Section: Resultssupporting

confidence: 92%

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

Ketta¹,

Tůmová²

2018

CZECH J ANIM SCI

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Ketta M., Tumova E. (2018): Eggshell characteristics and cuticle deposition in three laying hen genotypes housed in enriched cages and on litter. Czech J. Anim. Sci., 63, 11-16.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 2 /hen, 10 hens/cage) and in littered pens (100 hens, 9 hens/m 2 , 10 hens/pen). The experiment was carried out in weeks 40-56 of hens age. Nonsignificant 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.

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Section: Resultssupporting

confidence: 92%

“…Similarly, Ledvinka et al (2012) and Englmaierova et al (2014) found stronger shells in cages than in litter system. Studies on the effect of housing system on cuticle deposition are very limited and need more investigations.…”

mentioning

confidence: 76%

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

Ketta¹,

Tůmová²

2018

CZECH J ANIM SCI

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“…Six eggs from each light colour (2 eggs from upper floor, 2 eggs from middle floor and, 2 eggs from lower floor) in one collection were analyzed, in total 120 eggs. Microbial analysis of the eggshell surface was performed on fresh eggs according to Englmaierova et al (2014). The eggs were sampled by hand (wearing clean gloves), placed on a clean underlay.…”

Section: Methodsmentioning

confidence: 99%

Effect of light colour on egg production and egg contamination

Svobodová¹,

Tůmová²,

Popelářová³

et al. 2015

CZECH J ANIM SCI

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ABSTRACT:The objective of this study was to compare the performance of laying hens, quality of air in poultry house, and microbial contamination of eggshell in laying hens kept under blue, green, red, and yellow light colour in enriched cages. The daily photoperiod consisted of 15 h light, light intensity of 10 lx at bird head level. The laying performance characteristics (hen-day egg production, mortality, and egg weight) were not affected by light colour. Similarly, microbial contamination of the air was not significantly different related to the light colour. There were significant interactions in eggshell contamination between the position of the cage floor and light colour in Escherichia coli (P ≤ 0.042) and Enterococcus (P ≤ 0.019). The highest number of Escherichia coli was detected in eggs from hens housed on the middle floor given yellow light (6.06 log colony forming units (cfu)/eggshell) and the lowest values (3.30 log cfu/eggshell) on the upper floor also under yellow light colour. Similar results were observed in Enterococcus, where the highest contamination was on the middle floor under yellow light colour (5.26 log cfu/eggshell), while the lowest contamination (2.45 log cfu/eggshell) was found on the upper floor under blue colour. The results of our study indicate that the light colour has a minor effect on microbial contamination but the significant influence was in the floor position. The highest microbial egg contamination was found on eggs from the middle floor.

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“…The average of 1.5% reduced egg production on organic farms in Leenstra et al (2012) was the average of non-significant differences between the systems in Switzerland and France, and a significant 5.7% lower egg production on organic farms in the Netherlands. Three of the studies (Dekker et al, 2011a;Englmaierová et al, 2014;Leenstra et al, 2014) showed that feed conversion ratio was 5.5 to 28.1% higher in organic compared to conventional production ( Figure 3.7). The higher feed conversion ratio of organic laying hens, as compared to laying hens kept in conventional cage housing, is partly inherent to the loose hen housing in the organic system, in which laying hens have a higher energy expenditure due to higher activity levels and outdoor access.…”

Section: Laying Hensmentioning

confidence: 98%

“…Dekker et al (2011a) used normative data for the conventional system, whereas data for the organic system were obtained from interviews with 20 randomly selected organic farmers. Englmaierová et al (2014) compared 72 conventional laying hen farms with 72 organic farms. Leenstra et al (2012) collected data on 257 farms in three countries (Switzerland, France and the Netherlands).…”

Section: Laying Hensmentioning

confidence: 99%

Sustainability of livestock production systems : a comparing conventional and organic livestock husbandry

Wagenberg¹,

Haas²,

Hogeveen³

et al. 2016

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This study analysed peer-reviewed literature comparing conventional and organic livestock production systems on sustainability indicators within the topics of economy, productivity, environment, animal welfare and public health. For many indicators, insufficient data were found to draw any conclusions on a difference. The strong points of both conventional and organic livestock production systems were used to formulate lessons learned for sustainable livestock production systems. As sustainability indicators often interact with other sustainability indicators in opposing directions, sustainable livestock production should be approached as a multi-criteria problem optimising a balanced combination of sustainability indicators in all topics.Deze studie heeft wetenschappelijke literatuur geanalyseerd, die conventionele en biologische dierlijke productiesystemen kwantitatief vergelijkt op duurzaamheidsindicatoren binnen de onderwerpen economie, productiviteit, milieu, dierenwelzijn en volksgezondheid. Voor veel indicatoren zijn onvoldoende gegevens gevonden om conclusies te trekken over een verschil. Gevonden sterke punten van zowel conventionele als biologische systemen zijn gebruikt om lessen te trekken voor duurzame veehouderij. Aangezien duurzaamheidsindicatoren vaak onderling samenhangen in tegenstrijdige richting moet een duurzame veehouderij gezien worden als een multicriteria beslissingsprobleem, waarin een gebalanceerde combinatie van indicatoren uit alle duurzaamheidsonderwerpen moet worden geoptimaliseerd.

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Effects of laying hens housing system on laying performance, egg quality characteristics, and egg microbial contamination

Cited by 75 publications

References 28 publications

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

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

Effect of light colour on egg production and egg contamination

Sustainability of livestock production systems : a comparing conventional and organic livestock husbandry

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