Results 41 to 50 of about 161,156 (283)

The Price of Happy Hens: A Hedonic Analysis of Retail Egg Prices

Journal of Agricultural and Resource Economics, 2010
This paper analyzes price differentials among conventional, cage-free, organic, and Omega-3 eggs using retail scanner data from two regional markets and the United States as a whole.
Jae Bong Chang, Jayson L. Lusk, F. Bailey Norwood   +2 more
doaj   +1 more source

Advances in keeping laying hens in various cage-free systems

World's Poultry Science Journal, 2023
SUMMARY: Cage-free housing of pullets and laying hens is becoming more and more popular around the world. This paper reviews the literature on the most common cage-free rearing systems for pullets: floor systems with or without elevated structures, multi-tier systems, systems with access to a covered veranda and/or a free-range, and organic systems ...
Giersberg, Mona F., Rodenburg, T. Bas
openaire   +1 more source

Automatic detection of bumblefoot in cage-free hens using computer vision technologies. [PDF]

Poult Sci
Cage-free (CF) housing systems are expected to be the dominant egg production system in North America and European Union countries by 2030. Within these systems, bumblefoot (a common bacterial infection and chronic inflammatory reaction) is mostly observed in hens reared on litter floors.
Bist RB, Yang X, Subedi S, Chai L.
europepmc   +4 more sources

Free Dietary Choice and Free-Range Rearing Improve the Product Quality, Gait Score, and Microbial Richness of Chickens

Animals, 2018
Poultry welfare has been extensively studied; however, there is a lack of rigorous scientific knowledge relating to the different aspects of welfare factors and how this may contribute to the production quantity and product quality as well as the welfare
Siyu Chen, Hai Xiang, Xu Zhu, Hui Zhang, Dan Wang, Huagui Liu, Jikun Wang, Tao Yin, Langqing Liu, Minghua Kong, Jian Zhang, Shin-ichiro Ogura, Xingbo Zhao   +12 more
doaj   +1 more source

Applied Research Note: Internal organ colonization by Salmonella Enteritidis in experimentally infected layer pullets after rearing in conventional cage or cage-free housing

Journal of Applied Poultry Research, 2023
SUMMARY: Invasive Salmonella Enteritidis infection involving the reproductive organs of laying hens can result in the production of internally contaminated eggs, which continue to be prominent sources of disease transmission to consumers.
Richard K. Gast, Deana R. Jones, Rupa Guraya, Javier S. Garcia, Darrin M. Karcher   +4 more
doaj   +1 more source

Air Quality and Hen Health Status in Three Types of Commercial Laying Hen Houses [PDF]

, 2007
Environmental conditions and bird health are important elements in assessment of animal welfare for laying hen housing systems, but limited information is available comparing different types of systems. Three types of laying hen houses - caged high-rise,
Green, Angela, Trampel, Darrell, Wesley, Irene, Xin, Hongwei, Xin, Hongwei   +4 more
core   +3 more sources

Effect of housing arrangement on fecal-oral transmission of avian hepatitis E virus in chicken flocks

BMC Veterinary Research, 2017
Background Avian hepatitis E virus (HEV) infection is common in chicken flocks in China, as currently no measures exist to prevent the spread of the disease.
Baoyuan Liu, Yani Sun, Yiyang Chen, Taofeng Du, Yuchen Nan, Xinjie Wang, Huixia Li, Baicheng Huang, Gaiping Zhang, En-Min Zhou, Qin Zhao   +10 more
doaj   +1 more source

Automatic Detection of Cage-Free Dead Hens with Deep Learning Methods

AgriEngineering, 2023
Poultry farming plays a significant role in ensuring food security and economic growth in many countries. However, various factors such as feeding management practices, environmental conditions, and diseases lead to poultry mortality (dead birds).
Ramesh Bahadur Bist, Sachin Subedi, Xiao Yang, Lilong Chai   +3 more
openaire   +2 more sources

Animal welfare initiatives improve feather cover of cage-free laying hens in the UK [PDF]

, 2016
This paper describes a case example where initiatives from private assurance schemes, scientists, charities, government and egg companies have improved the welfare of UK cage-free laying hens.
Atkinson, Chris, Bond, Alison, Cooper, Marc, Jamieson, Jennifer, Main, David, Mullan, Siobhan M, Szmaragd, Camille, Wrathall, J. H M   +7 more
core   +2 more sources

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon, Peter T. Gallagher, Orly I. Richter, Neermala Poudel Neupane, Amy C. Mandigo, Jennifer J. McCann, Emanuela Dylgjeri, Irina Vasilevskaya, Christopher McNair, Channing J. Paller, Wm. Kevin Kelly, Karen E. Knudsen, Matthew J. Schiewer, Ayesha A. Shafi   +13 more
wiley   +1 more source