Correction to: Hammershøj et al. Dual-Purpose Poultry in Organic Egg Production and Effects on Egg Quality Parameters. Foods 2021, 10, 897

Marianne Hammershoj*, Gitte Hald Kristiansen, Sanna Steenfeldt

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisKommentar/debat/letter to the editorForskningpeer review

Abstract

The authors would like to make the following correction to the published paper [1]. Text Correction There was an error in the original publication. After publishing the results, a mistake in the chick delivery for genotype A, was discovered. This means that fewer chickens than expected were available for genotype A, resulting in only two replicate units for genotype A instead of three replicates that was planned. The results have been corrected by calculating the LS-Means of all data by two replicate units of genotype A, and by three replicate units of genotypes B, C and D, respectively. A correction has been made to Abstract, lines 7–11: Two 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, and genotype C was a crossbreed of a layer type. These were compared to a rustic genotype B and 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 990 shell eggs were analyzed. A correction has been made to Section 2.1. Materials, first paragraph, lines 1–7: Eggs were produced from four different genotypes in the study, including two dualpurpose genotypes (A, C), a rustic breed (B) and a commercial egg layer (D). The dualpurpose genotypes with divergent characteristics, and a rustic genotype were selected by the French Poultry and Aquaculture Breeders Technical Center (SYSAAF) in cooperation with two breeding companies. Genotype A represented an experimental cross breed based on a broiler type male and an egg layer female laying brown-shelled eggs, where genotype C was a cross breed of a layer type laying brown-shelled eggs. Genotype B represented a genotype that has not been selected for any specific traits and included to compare with the dual-purpose genotypes orientated more on meat or eggs production. Finally, genotype D was a control egg layer breed laying white-shelled eggs (purchased at a local pullet breeder). However, due to a mistake in the chick delivery for genotype A, fewer chickens than expected were available for genotype A, which resulted in only two replicate units for genotype A instead of three replicates that was planned. For genotype B, C and D, there were three replicate units. A correction has been made to Section 2.1. Materials, fourth paragraph, lines 1–3: Six times, at the hen ages of 21, 25, 30, 38, 46, and 54 week, 15 eggs were collected from each of the 11 outdoor units with mobile houses, representing the four genotypes in two (A) and three replicates (B, C and D), i.e., a total of 990 shell eggs were individually analyzed.

OriginalsprogEngelsk
Artikelnummer311
TidsskriftFoods
Vol/bind11
Nummer3
Antal sider9
ISSN2304-8158
DOI
StatusUdgivet - feb. 2022

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