Results 11 to 20 of about 787,178 (288)

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]

open access: yesPLoS ONE, 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.
C. Weeks, S. Lambton, A. Williams
semanticscholar   +6 more sources

The Effect of Hard Pecking Enrichment during Rear on Feather Cover, Feather Pecking Behaviour and Beak Length in Beak-Trimmed and Intact-Beak Laying Hen Pullets

open access: yesAnimals, 2022
Injurious pecking, commonly controlled by beak trimming (BT), is a widespread issue in laying hens associated with thwarted foraging. This controlled study compared the effect in intact and beak-trimmed pullets of providing pecking pans to eight ...
Paula Elizabeth Baker   +2 more
doaj   +1 more source

Laying hen mortality in different indoor housing systems: a meta-analysis of data from commercial farms in 16 countries

open access: yesScientific Reports, 2021
Societal concern with the welfare of egg laying hens housed in conventional cages is fostering a transition towards cage-free systems in many countries.
C. Schuck-Paim   +2 more
semanticscholar   +1 more source

Nutrition, feeding and laying hen welfare

open access: yesAnimal Production Science, 2021
The relationship between nutrition and welfare is usually considered to be a direct result of supplying the hen with adequate quantities of feed and water.
W. Bryden   +4 more
semanticscholar   +1 more source

Soybean oil addition to wheat bran-based diet improves laying hens’ performance [PDF]

open access: yesVeterinary World, 2023
Background and Aim: Wheat bran (WB) is used extensively in animal feed. Despite its nutritional value, its use is limited because of its high-fiber content.
Mariana Novela   +10 more
doaj   +1 more source

Environmental Enrichments in Laying Hen Production Systems with Emphasis on Welfare and Egg Quality

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2021
To improve hen welfare, several studies have investigated various environmental enrichments that suit different laying hen production systems. The positive results of these studies can enable such environmental enrichments to be utilized in commercial ...
Brian Tainika, Ahmet Şekeroğlu
doaj   +1 more source

The application of micro-CT in egg-laying hen bone analysis: introducing an automated bone separation algorithm

open access: yesPoultry Science, 2020
The application of micro-CT in small animal research, especially on bone health, has risen exponentially in recent years. However, its application in egg-laying hen bone analysis was still limited. This review introduces the technical aspects of micro-CT
C. Chen, W.K. Kim
doaj   +1 more source

Inventory of biosecurity measures and antibiotics therapy practices on laying hen farms in Benin [PDF]

open access: yesVeterinary World, 2020
Background and Aim: Laying hen breeding is on the rise in Benin; nevertheless, there are several sanitary constraints to its development, including bacterial diseases. Faced with this situation, breeders mainly resort to different means of treatment. The
Oscar N. C. Aguidissou   +7 more
doaj   +1 more source

Characterization of miR-200 family members as blood biomarkers for human and laying hen ovarian cancer

open access: yesScientific Reports, 2020
MicroRNA-200 (miR-200) family is highly expressed in ovarian cancer. We evaluated the levels of family members relative to the internal control miR-103a in ovarian cancer and control blood specimens collected from American and Hong Kong Chinese ...
Pui-Wah Choi   +14 more
semanticscholar   +1 more source

Optimal Placement of Laying Hen House Temperature Sensors Based on Genetic Algorithm

open access: yesIEEE Access, 2022
The arrangement of temperature sensors in most existing large-scale laying hen houses is random or placed according to the experience of breeders. However, this can’t achieve accurate monitoring of the henhouse.
Xiaoyue Hu   +4 more
doaj   +1 more source

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