FreeBirds - Encouraging organic chickens and laying hens to be more outdoor

Publications in the project 

Feel free to click on our page to see our results.

Research articles

• Göransson, L., Yngvesson, J. and S. Gunnarsson, S., 2022. Bird health and welfare in slower-growing hybrids on Swedish commercial organic broiler chicken farms. Journal of Veterinary Behavior 48:84. https://doi.org/10.1016/j.jveb.2021.06.025.
• Sözcü, A., İpek, A, Oğuz, Z., Gunnarsson, S. and A. Brinch Riber, 2021. Comparison of behavioural time budget and welfare indicators in two local laying hen genotypes (Atak-S and Atabey) in a free range system. Animals, 12(1), 46; https://doi.org/10.3390/ani12010046.
• Göransson, L., Gunnarsson, S. Wallenbeck, A. and J. Yngvesson, J. 2021. Behaviour in Slower-growing Broilers and Free-range Access on Organic Farms in Sweden. Animals 11, 2967. https://doi.org/10.3390/ani11102967.
• Marchewka, J., Sztandarski, P., Zdanowska-Sąsiadek, Ż. Adamek-Urbańska, D., Damaziak, K., Wojciechowski, F., Riber, A.B. and S. Gunnarsson 2021. Gastrointestinal tract morphometrics and content of commercial and indigenous chicken breeds with differing ranging profiles. Animals, 11(7):1881. https://doi.org/10.3390/ani11071881
• Sztandarski, P., Marchewka, J., Adamek-Urbańska, D., Damaziak, K., Wojciechowski, F., Riber, A.B. and S. Gunnarsson 2021. Associations between neck plumage and beak darkness, as well as comb size measurements and scores with ranging frequency of Sasso and Green-legged Partridge chickens. Poultry Science, 100(9):101340. https://doi.org/10.1016/j.psj.2021.101340
• Marchewka, J., Sztandarski, P., Zdanowska-Sąsiadek, Ż., Damaziak, K., Wojciechowski, F., Riber, A.B. and S. Gunnarsson, 2020. Associations between welfare and ranging profile in free-range commercial and heritage meat-purpose chickens (Gallus gallus domesticus). Poultry Science 99:4141–4152. doi.org/10.1016/j.psj.2020.05.044. 
• Göransson, L., Yngvesson, J. and S. Gunnarsson, 2020. Bird health, housing and management routines in Swedish organic broiler chicken farms. Animals 2020, 10 (11), 2098; doi:10.3390/ani10112098.
• Sözcü, A., İpek, A, Oguz, Z., Gunnarsson, S. and A. Brinch Riber, 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(5):1458.
• Sztandarski, P., Marchewka, J., Wojciechowski, F., Riber, A. B., Gunnarsson, S. & Horbańczuk, J. O. 2021. Associations between weather conditions and individual range use by commercial and heritage chickens. Poultry Science, 101265.
• Vaarst, M., Roderick, S., Martin, G., Gunnarson, S., Spengler Neff, A., Bieber, A. and A.G. Kongsted, 2020. Potentials, challenges and visions for future European organic animal farming. Video Pre-Conference on Animal Husbandry 21-22 September 2020 linked to the 20th Organic World Congress 2021 Organized by IFOAM Animal Husbandry Alliance (IAHA). Proceedings p 11-22.

Popular publications

• Gunnarsson, S.; Ferrante, V.; Brinch Riber, A.; Marchewka, J.; Tuyttens, F.; Ipek, A.; Sözcü, A.; Bestman, M.; Rodenburg, B. and T. van Niekerk, 2021. Promoting range use in broiler chickens. CORE Organic Practice Abstracts.  
• Gunnarsson, S.; Ferrante, V.; Brinch Riber, A.; Marchewka, J.; Tuyttens, F.; Ipek, A.; Sözcü, A.; Bestman, M.; Rodenburg, B. and T. van Niekerk, 2021. Promoting range use in laying hens. CORE Organic Practice Abstracts.
• CORE Organic Newsletter: Finding the best laying hens for organic farms.
• CORE Organic Newsletter: Role of range use in infections with parasites in laying hens.
• CORE Organic Newsletter: How is the bird health at Swedish organic broiler farms?
• CORE Organic Newsletter: Organic chickens using the free-ranges are often in better welfare condition.
• CORE Organic Newsletter: Free range soil: more management, less nutrient levels, better environment.