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Comparison of Performance, Egg Quality, and Yolk Fatty Acid Profile in Two Turkish Genotypes (Atak-S and Atabey) in a Free-Range System

Sözcü, Arda; Ipek, Aydın; Oguz, Zuleyha; Gunnarsson, Stefan and Riber B., Anja (2021) Comparison of Performance, Egg Quality, and Yolk Fatty Acid Profile in Two Turkish Genotypes (Atak-S and Atabey) in a Free-Range System. Animals, 11 (1458), pp. 1-15.

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Document available online at: https:// doi.org/10.3390/ani1105145


Summary

Consumer interest in buying eggs from animal welfare-friendly systems with outdoor access is increasing, leading to an increase in the need for knowledge on genotypes suitable for free-range systems. Two Turkish laying hen genotypes, Atak-S (brown, n = 210) and Atabey (white, n = 210), were reared in a free-range system from 19–72 weeks of age, and their suitability for the system was assessed based on laying performance, egg quality, and yolk fatty acid profile. Mean hen-day and hen-housed egg production were found to be higher in Atabey than Atak-S (p < 0.01). The brown eggs from Atak-S hens tended to be heavier than the white eggs from Atabey hens (p < 0.01). Brown eggs obtained from Atak-S hens had a stronger shell structure (p < 0.01), while white eggs from Atabey hens had higher mean yolk index, albumen index, and Haugh unit than brown eggs (p < 0.05). At 56 weeks of age, total saturated fatty acid content in yolk was higher in white eggs than in brown eggs (p < 0.01). These findings related to genotype could help free-range egg producers in their choices for more profitable production and for meeting consumer demands on egg quality and egg yolk fatty acid


EPrint Type:Journal paper
Keywords:egg production; fatty acids; free range; genotyp
Agrovoc keywords:
Language
Value
URI
English
UNSPECIFIED
UNSPECIFIED
Subjects: Animal husbandry > Breeding and genetics
Animal husbandry > Production systems > Poultry
Research affiliation: Turkey > Uludag University
H2020 or FP7 Grant Agreement Number:727495
DOI:doi.org/10.3390/ani1105145
Deposited By: Sözcü, Dr. Arda
ID Code:40105
Deposited On:22 Jun 2021 08:52
Last Modified:22 Jun 2021 08:52
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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