Spectrum Lighting During Pullet Rearing and Its Impact on Subsequent Production Performance in Layers
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چکیده
منابع مشابه
The effect of perches in cages during pullet rearing and egg laying on hen performance, foot health, and plumage.
Enrichment of pullet cages with perches has not been studied. Our objective was to determine if access to metal perches during all or part of the life cycle of caged White Leghorns affected egg traits, foot health, and feather condition. Treatment 1 represented control chickens that never had access to perches during their life cycle. Treatment 2 hens had perches only during the egg laying phas...
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چکیده ندارد.
15 صفحه اولOpportunities for exercise during pullet rearing, Part I: Effect on the musculoskeletal characteristics of pullets
Increased load-bearing exercise improves bone quality characteristics in a variety of species, including laying hens. Providing increased opportunities for exercise during the pullet rearing phase, a period of substantial musculoskeletal growth, offers a proactive approach to reducing osteoporosis by improving bone composition. The main objective of this study was to determine whether differing...
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abstract u.s. attack to afghanistan after 9/11 provided opportunities for us who tried to become the dominant power after collapse of ussr and bipolar world. thinkers like fukuyama believed american liberal democrats thought would be universally accepted without resistances. liberal democracy is the best and final model of governance; in this regard, united state has moral responsibilities for...
15 صفحه اولRearing and laying performance following various step-down lighting regimens in the rearing period.
It is frequently recommended that commercial laying pullets are reared on step-down lighting regimens, rather than on constant short photoperiods, to help achieve BW targets during rear and optimal performance in lay. To evaluate the effectiveness of this strategy, Shaver White pullets were maintained on 8-h day lengths or given a step-down lighting regimen from 23 to 8 h over periods of betwee...
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ژورنال
عنوان ژورنال: Journal of Applied Poultry Research
سال: 2019
ISSN: 1056-6171
DOI: 10.3382/japr/pfz094