Results 71 to 80 of about 203,894 (311)

Effect of bird age and storage system on physical properties of eggs from brown laying hens [PDF]

, 2010
A total of 108 eggs from a group of 100 brown laying hens housed in standard cages were analyzed. Thirty-six eggs were retired when the hens had 30 week of age, other 36 eggs were retired when the hens had 35 week of age and the remaining 36 eggs were ...
Buxade Carbo, Carlos, Callejo Ramos, Antonio, Cardoso Maciel, William, Daza Andrada, Argimiro, Siqueira de Castro Teixeira, Regis   +4 more
core   +1 more source

Implications for welfare, productivity and sustainability of the variation in reported levels of mortality for laying hen flocks kept in different housing systems: A meta-analysis of ten studies [PDF]

, 2016
Data from ten sources comprising 3,851 flocks were modelled to identify variation in levels of mortality in laying hens. The predicted increase with age was curvilinear with significant variation between the seven breed categories. Mortality was higher
Lambton, Sarah L., Weeks, Clare A., Williams, Adrian G.   +2 more
core   +5 more sources

Genomic Structural Variations Provide Insights Into Litter Size and Teat Number Traits in Hu Sheep

Animal Research and One Health, EarlyView.
Here, we conducted whole genome sequencing on 300 Hu sheep with an average depth of 16.51X. Two candidate genes associated with litter size and teat number traits were identified, namely MAST2 and AFDN. ABSTRACT Litter size and the teat number are important economic indicators in sheep production.
Xin Xiang, Wei Dai, Jiqiang Liu, Zhengguang Wang   +3 more
wiley   +1 more source

The Effects of Origin on the Formation of Stress Parameters and Selected Behaviour of Hens

Agriculture
The aim of this study was to evaluate the effect of the origin of hens of locally adapted breeds on the levels of selected stress indicators and neurotransmitter serotonin in blood, and also on the selected behaviour and plumage condition. A total of 168
Iwona Skomorucha, Ewa Sosnówka-Czajka
doaj   +1 more source

The Effect of Effort: An analysis of Killeen's (1994) Mathematical Principles of Reinforcement [PDF]

, 2011
Mathematical Principles of Reinforcement (MPR, Killeen, 1994) is a mathematical model comprising three main concepts; an animal’s arousal to behaviour based on its motivation for a particular reinforcer, time and energy constraints on responding, and ...
Bjarnesen, Rebecca Claire
core   +1 more source

Animal welfare in poultry production systems: impact of EU standards on world trade [PDF]

, 2008
Animal welfare receives more legislative attention in the European Union (EU) than in many other regions of the world. Animal welfare standards for poultry are generally taken to be higher in the EU than in producing countries exporting to the EU ...
Achterbosch, T.J., Horne, P.L.M., van
core   +2 more sources

Automated Feature Extraction and Classification of Submerged Cultural Heritage Assets in the Puck Lagoon via Multisensor Remote Sensing

Archaeological Prospection, EarlyView.
ABSTRACT This study presents a strong framework for the detection and classification of Submerged Cultural Heritage Assets (SCHA) in shallow marine environments using the integration of multibeam echosounder and airborne LiDAR bathymetry with object‐based image analysis and fuzzy logic–based classification.
Łukasz Janowski, Andrzej Pydyn, Mateusz Popek, Anna M. Kotarba‐Morley, Paweł Tysiąc   +4 more
wiley   +1 more source

Effects of herbal dregs supplementation of Salvia miltiorrhiza and Isatidis Radix residues improved production performance and gut microbiota abundance in late-phase laying hens

Frontiers in Veterinary Science
The present study was designed to evaluate the effect of a mixture of Chinese medicinal residues (CMRs) consisting of Salvia miltiorrhiza residues (SMR) and Isatidis Radix residues (IRR) on productive performance, egg quality, serum lipid and hormone ...
Zhaonian Li, Zhaonian Li, Ning Ma, Xincheng Gong, Wanyu Shi, Xianhua Meng, Jingjiao Yan, Zhiqiang Zhao, Jiefeng Li   +8 more
doaj   +1 more source

Long‐Term Outcomes of Reduced Intensity Conditioning Hematopoietic Stem Cell Transplantation for Systemic Sclerosis Patients with Impaired Cardiac Function

Arthritis &Rheumatology, Accepted Article.
Objective High intensity conditioning autologous hematopoietic stem cell transplantation (AHSCT) is standard of care for patients with advanced SSc. The role of reduced intensity conditioning (RIC) prior to AHSCT in this population remains unclear. We conducted this study to determine the long‐term outcomes of RIC AHSCT in SSc patients with cardiac ...
Yonatan Lean, Carrie Richardson, Anthony Esposito, Katy Bedjeti, George E. Georges   +4 more
wiley   +1 more source

Antioxidant enzymes activity, GSH and MDA level in eggs from heritage breeds

Annales Universitatis Paedagogicae Cracoviensis Studia Naturae, 2018
The objective of the study was to determine the activity of antioxidant enzymes and the level of GSH and MDA in yolk and albumen of hen’s eggs. The experiment was carried out with 99 hens of three heritage breeds (‘Greenleg Partridge’ – group I, ‘Sussex’
Renata Muchacka, Ewa Sosnówka-Czajka, Iwona Skomorucha, Edyta Kapusta, Agnieszka Greń, Zofia Goc   +5 more
doaj   +1 more source