ArticlePoultry science2017
Opportunities for exercise during pullet rearing, Part II: Long-term effects on bone characteristics of adult laying hens at the end-of-lay.
Article in Poultry science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Sensor-Based Precision Feeding Systems in Animal Production: Technologies and Applications.Animals : an open access journal from MDPI · 2026Review
- Optimizing eggshell quality in extended laying periods: Insights and strategies.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026Review
- Tibiotarsal mechanical behaviour is mainly a function of bone structure and not mineral density in female adolescent chickens.Frontiers in bioengineering and biotechnology · 2026Article
- Rearing enrichment affects perching behaviour and bone strength in pullets and in free-range hens varying in range use patterns.Veterinary and animal science · 2025Article
- The Gordon Memorial Lecture: genotype, phenotype, selection and more: improving the skeletal health of laying hens.British poultry science · 2025Article
- Laying Hens: Why Smothering and Not Surviving?-A Literature Review.Animals : an open access journal from MDPI · 2024Review
- Impact of Perch Provision Timing on Activity and Musculoskeletal Health of Laying Hens.Animals : an open access journal from MDPI · 2024Article
- Influence of perch provision during rearing on activity and musculoskeletal health of pullets.PloS one · 2024Article
- Genetics of tibia bone properties of crossbred commercial laying hens in different housing systems.G3 (Bethesda, Md.) · 2023Article
- Effects of a Rearing Dietary Protein Regimen on Productive Performance, Egg Quality, and Bone Quality of Laying Hens.The journal of poultry science · 2022Article
- Farm Environmental Enrichments Improve the Welfare of Layer Chicks and Pullets: A Comprehensive Review.Animals : an open access journal from MDPI · 2022Review
- Maternal age and maternal environment affect egg composition, yolk testosterone, offspring growth and behaviour in laying hens.Scientific reports · 2022Article
- Untargeted metabolomics reveals the effect of rearing systems on bone quality parameters in chickens.Frontiers in genetics · 2022Article
- Dietary Energy and Protein Levels During the Prelay Period on Production Performance, Egg Quality, Expression of Genes in Hypothalamus-Pituitary-Ovary Axis, and Bone Parameters in Aged Laying Hens.Frontiers in physiology · 2022Article
- Welfare issues and potential solutions for laying hens in free range and organic production systems: A review based on literature and interviews.Frontiers in veterinary science · 2022Review
- Abnormal Bone Metabolism May Be a Primary Causative Factor of Keel Bone Fractures in Laying Hens.Animals : an open access journal from MDPI · 2021Article
- Effect of photoperiod on eggshell quality and quality characteristics of tibia, femur, and ulna in laying ducks.Poultry science · 2021Article
- Cage type and mineral nutrition had independent impact on skeletal development in Lohmann LSL-Lite pullets from hatch to 16 weeks of age.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2021Article
- Explanations for keel bone fractures in laying hens: are there explanations in addition to elevated egg production?Poultry science · 2020Review
- Strain differences and effects of different stocking densities during rearing on the musculoskeletal development of pullets.Poultry science · 2020Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Osteoporosis in laying hens has been a production and welfare concern for several decades. The objective of this study was to determine whether differing opportunities for exercise during pullet rearing influences long-term bone quality characteristics in end-of-lay hens. A secondary objective was to assess whether differing opportunities for exercise in adult housing systems alters bone quality characteristics in end-of-lay hens. Four flock replicates of 588 Lohmann Selected Leghorn-Lite pullets were reared in either conventional cages (Conv) or an aviary rearing system (Avi) and placed into conventional cages (CC), 30-bird furnished cages (FC-S), or 60-bird furnished cages (FC-L) for adult housing. Wing and leg bones were collected at the end-of-lay to quantify bone composition and strength using quantitative computed tomography and bone breaking strength (BBS). At the end-of-lay, Avi hens had greater total and cortical cross-sectional area (P < 0.05) for the radius and tibia, greater total bone mineral content of the radius (P < 0.001), and greater tibial cortical bone mineral content (P = 0.029) than the Conv hens; however, total bone mineral density of the radius (P < 0.001) and cortical bone mineral density of the radius and tibia (P < 0.001) were greater in the Conv hens. Hens in the FC-L had greater total bone mineral density for the radius and tibia (P < 0.05) and greater trabecular bone mineral density for the radius (P = 0.027), compared to hens in the FC-S and CC. Total bone mineral content of the tibia (P = 0.030) and cortical bone mineral content of the radius (P = 0.030) and tibia (P = 0.013) were greater in the FC-L compared to the CC. The humerus of Conv hens had greater BBS than the Avi hens (P < 0.001), and the tibiae of FC-L and FC-S hens had greater BBS than CC hens (P = 0.006). Increased opportunities for exercise offered by the aviary rearing system provided improved bone quality characteristics lasting through to the end-of-lay.
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