Results 51 to 60 of about 787,178 (288)
Virginiamycin and Laying Hen Performance
Poultry Science, 1985 Two experiments were conducted for five 28-day periods each. In Experiments 1 and 2, Hyline W-36 hens, 36 and 26 weeks of age, respectively, were used. Experiment 1 was designed to measure the effect of virginiamycin on hen performance and egg characteristics when supplementing a diet having low pigmentation potential.
R. H. Harms +2 more
openaire +2 more sources
Ammonia Emissions of Laying Hens as Affected by Stocking Density and Manure Accumulation Time [PDF]
, 2010 Different stocking densities (SDs) or space allocations are being practiced in commercial laying-hen operations as an attempt to improve hen welfare. Information concerning the impact of SD on accumulated manure properties (e.g., moisture content) and ...
Li, Hong +3 more
core +3 more sources
The Human-Animal Relationship in Australian Caged Laying Hens
Animals, 2019 Studies on farm animals have shown relationships between stockperson attitudes and behaviour and farm animal fear, stress and productivity. This study investigated how the avoidance behaviour of Australian commercial caged laying hens may be related to ...
Lauren E. Edwards +3 more
doaj +1 more source
Poultry Science, 2022 : The paper aimed to study the effects of light regime on circadian rhythmic behavior and reproductive parameters in a native laying hen, Beijing You Chicken (BYC) during 22 to 30 wk.
A.L. Geng +6 more
doaj +1 more source
Scientific Reports, 2018 Eggshell is the outermost calcified covering of an egg that protects it from microbial invasion and physical damage, and is critical for egg quality.
Nirvay Sah +6 more
semanticscholar +1 more source
Ammonia and Carbon Dioxide Emissions vs. Feeding and Defecation Activities of Laying Hens [PDF]
, 2008 This study characterizes dynamic ammonia (NH3) and carbon dioxide (CO2) emissions associated with feeding and defecation activities of laying hens. Manure handling scheme used was reflective of commercial manure-belt house operation.
Li, Hong +4 more
core +3 more sources
Examining the catching, carrying, and crating process during depopulation of end-of-lay hens
Journal of Applied Poultry Research, 2021 Summary: Laying hen flocks undergo depopulation at end of lay, a difficult process that has been associated with injuries and is considered stressful to hens and human collectors. To date, most assessments of depopulations have been conducted within cage
C. Gerpe +3 more
doaj +1 more source
Oxytocin in the Neurohypophysis of the Laying Hen [PDF]
Nature, 1960 ALTHOUGH it has been well known that the administration of posterior lobe hormones induces premature oviposit ion in the hen, Gallus domesticus 1,2, as in other fowls3, it remains undetermined whether the hormone(s) plays an essential part in normal oviposition.
Katuhide Tanaka, Seiichi Nakajo
openaire +3 more sources
Consumer perceptions of egg-laying hen housing systems
Poultry Science, 2018 The egg industry has transitioned, or is in the process of transitioning, from conventional cages to alternative hen housing systems in response to legal changes in many states across the United States (US).
Daniel S Ochs +3 more
semanticscholar +1 more source
Poultry Science, 2021 The fatty liver hemorrhage syndrome in laying hens is a disease of lipid metabolism disorders. Importantly, energy sensor AMP-activated protein kinase (AMPK) plays an essential role in homeostasis regulation of liver lipid.
Kun Zhang +11 more
doaj +1 more source