Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/31124
Title: Increasing energy and amino acid levels in layer diets improved laying performance but not egg quality in ranging free-range hens
Contributor(s): Sibanda, T Z  (author)orcid ; Welch, M  (author)orcid ; Schneider, D  (author)orcid ; Kolakshyapati, M  (author)orcid ; Ramirez-Cuevas, S (author); Ruhnke, I  (author)orcid 
Publication Date: 2021
Open Access: Yes
Handle Link: https://hdl.handle.net/1959.11/31124
Open Access Link: https://www.apss2021.com.au/proceedingsOpen Access Link
Abstract: It has been proposed that the metabolic energy requirements of free-ranging hens are up to 15% higher compared to caged hens due to the increased metabolic activity required for locomotion and thermoregulation (GfE 1999; Tiller 2001; Aerni et al. 2005). The aim of the study was to investigate the impact of various feed strategies on laying performance and egg quality of free-range laying hens. A total of 9,375 hens, placed amongst 5 flocks of 40,000 hens each were selected according to their range usage (hens accessed the range at least 70% of available days at 18-22 weeks of age).
Publication Type: Conference Publication
Conference Details: APSS 2021: 32nd Annual Australian Poultry Science Symposium, Online Event, 9th - 10th February, 2021
Source of Publication: Proceedings of the Australian Poultry Science Symposium, v.32, p. 179-179
Publisher: University of Sydney
Place of Publication: Sydney, Australia
ISSN: 1034-6260
1034-3466
Fields of Research (FoR) 2020: 300303 Animal nutrition
Socio-Economic Objective (SEO) 2020: 100411 Poultry
Peer Reviewed: Yes
HERDC Category Description: E3 Extract of Scholarly Conference Publication
Appears in Collections:Conference Publication
School of Environmental and Rural Science
School of Science and Technology

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