Results 41 to 50 of about 165,292 (342)

Providing ramps in rearing aviaries affects laying pullet distribution, behavior and bone properties

Journal of Applied Poultry Research, 2022
SUMMARY: To ensure that laying hens can make full use of the various resources within an aviary barn and develop optimum bone health while minimizing keel bone fractures, appropriate cognitive and bone development during rearing is critical.
A. Stratmann, D. Guggisberg, C. Benavides-Reyes, J. Siegford, M.J. Toscano   +4 more
doaj  

Keel bone fractures in laying hens: a systematic review of prevalence across age, housing systems, and strains

Journal of Animal Science, 2020
prohibited us from conducting a meta-analysis. We begin by detailing our literature review search, screening, and inclusion criteria. We highlight global publication trends on the topic before discussing our key findings in the context of KBF assessment ...
C. Rufener, M. Makagon
semanticscholar   +1 more source

Limited Associations between Keel Bone Damage and Bone Properties Measured with Computer Tomography, Three-Point Bending Test, and Analysis of Minerals in Swiss Laying Hens

Frontiers in Veterinary Science, 2017
Keel bone damage is a wide-spread welfare problem in laying hens. It is unclear so far whether bone quality relates to keel bone damage. The goal of the present study was to detect possible associations between keel bone damage and bone properties of ...
Sabine G. Gebhardt-Henrich, Andreas Pfulg, Ernst K. F. Fröhlich, Susanna Käppeli, Dominik Guggisberg, Annette Liesegang, Michael H. Stoffel   +6 more
doaj   +1 more source

Konflikt ja vägivald looduslike pühapaikadega seotud kohapärimuses

Keel ja Kirjandus
"Conflict and violence in narratives about sacred natural sites". This article discusses the role and function of violent motifs and folktales found in the place-lore of Estonian sacred natural sites, such as holy groves, and sacred stones and bodies of ...
Ott Heinapuu
doaj   +1 more source

Dietary Soybean Oil Supplementation Affects Keel Bone Characters and Daily Feed Intake but Not Egg Production and Quality in Laying Hens Housed in Furnished Cages

Frontiers in Veterinary Science, 2021
To evaluate dietary soybean oil supplementation on production performance, egg quality, and keel bone health in laying hens. Two hundred and four laying hens at 20 weeks of age (WOA) were distributed into 12 cages containing 17 birds each.
Haidong Wei, Lei Pan, Chun Li, Peng Zhao, Jianhong Li, Runxiang Zhang, Runxiang Zhang, Jun Bao, Jun Bao   +8 more
doaj   +1 more source

Basepoint freeness for nef and big line bundles in positive characteristic

, 1998
A necessary and sufficient condition is given for semi-ampleness of a numerically effective (nef) and big line bundle in positive characteristic. One application is to the geometry of the universal stable curve over M_g, specifically, the semi-ampleness ...
Keel, Seán
core   +3 more sources

Keel bone fractures affect egg laying performance but not egg quality in laying hens housed in a commercial aviary system

Poultry Science, 2019
The aim of this study was to investigate the effect of keel bone fracture (KBF) severity and healing activity on individual productivity of laying hens. Focal hens (75 Lohmann Selected Leghorn (LSL), 75 Lohmann Brown (LB)) were housed alongside non‐focal
C. Rufener, S. Baur, A. Stratmann, M. Toscano   +3 more
semanticscholar   +1 more source

Do laying hens with keel bone fractures experience pain? [PDF]

PLoS ONE, 2012
The European ban on battery cages has forced a change towards the use of non-cage or furnished cage systems, but unexpectedly this has been associated with an increased prevalence of keel bone fractures in laying hens.
Mohammed A F Nasr, Christine J Nicol, Joanna C Murrell   +2 more
doaj   +1 more source

Integrable clusters [PDF]

, 2014
The goal of this note is to study quantum clusters in which cluster variables (not coefficients) commute which each other. It turns out that this property is preserved by mutations.
Berenstein, Arkady, Greenstein, Jacob, Kazhdan, David   +2 more
core   +3 more sources

Two-dimensional numerical simulations of mixing under ice keels [PDF]

The Cryosphere
Changes in sea ice conditions directly impact the way the wind transfers energy to the Arctic Ocean. The thinning and increasing mobility of sea ice is expected to change the size and speed of ridges on the underside of ice floes, called ice keels, which
S. De Abreu, R. M. Cormier, M. G. Schee, V. E. Zemskova, E. Rosenblum, N. Grisouard   +5 more
doaj   +1 more source