Results 21 to 30 of about 29,283 (301)

The productivity and financial impacts of eight types of environmental enrichment for broiler chickens [PDF]

open access: yes, 2020
Reduced mobility in broilers can contribute to leg health problems. Environmental enrichment has been suggested as one approach to combat this through stimulating increased physical activity.
Jones, Philip J.   +4 more
core   +2 more sources

Keel bone damage in laying hens reared in different production systems in Serbia [PDF]

open access: yesBiotechnology in Animal Husbandry, 2017
The European Union in 2012 banned conventional battery cages for the welfare reasons. However, transition to new housing systems uncovered some new problems, such as keel bone damage (KBD), which also could endanger welfare of laying hens.
Đukić-Stojčić Mirjana   +5 more
doaj  

Scientific Opinion on welfare aspects of the use of perches for laying hens

open access: yesEFSA Journal, 2015
This opinion investigated the use of perches for laying hens in cage and non‐cage systems. It is based on various activities reviewing the effects of perch height and design on hen health and welfare.
EFSA Panel on Animal Health and Animal Welfare (AHAW)
doaj   +1 more source

Linear Space Requirements and Perch Use of Conventional Layer Hybrids and Dual-Purpose Hens in an Aviary System

open access: yesFrontiers in Veterinary Science, 2019
Roosting on elevated perches is a behavioral priority in laying hens, which is well-investigated in both experimental and commercial settings. However, little is known about perching behavior and perch requirements of alternative hybrids, such as dual ...
Mona F. Giersberg   +3 more
doaj   +1 more source

Comparative analysis of birdlife in different ecological restoration methods with emphasis in the role of artificial perches

open access: yesRevista de Biologia Neotropical, 2018
Artificial perches provide complexity to the landscape, a factor that can increase animal biodiversity. We tested the hypothesis that artificial perches used in ecological restoration promoting increased of the specific birdlife diversity in a restored ...
Huilquer Francisco Vogel   +3 more
doaj   +1 more source

Communication in the third dimension: song perch height of rivals affects singing response in nightingales. [PDF]

open access: yesPLoS ONE, 2012
Many animals use long-range signals to compete over mates and resources. Optimal transmission can be achieved by choosing efficient signals, or by choosing adequate signalling perches and song posts. High signalling perches benefit sound transmission and
Philipp Sprau   +3 more
doaj   +1 more source

Litter and perch type matter already from the start: exploring preferences and perch balance in laying hen chicks

open access: yesPoultry Science, 2021
Early chick environment, such as provision of litter and perches, can be a predictor of laying hen welfare. Inadequate or nonpreferred litter and perch types could have similar negative effects as those seen when not providing these resources at an early
Lena Skånberg   +2 more
doaj   +1 more source

Perch height predicts dominance rank in birds [PDF]

open access: yes, 2017
Dominant individuals within animal groups will frequently place themselves in the most beneficial position for maximal protection against predation, and for foraging benefits.
Butler, Patrick   +4 more
core   +1 more source

Host reaction in paratenic fish hosts against 3rd stage larvae of Anguillicola crassus [PDF]

open access: yes, 1996
Many fish species of Lake Balaton (Hungary) serve as paratenic hosts for the 3rd stage larvae of the eel parasite Anguillicola crassus. The incidence oi different phases of the host reaction varies with paratenic fish host but its nature is basically the
Molnár, Kálmán   +2 more
core   +1 more source

General Behaviors and Perching Behaviors of Laying Hens in Cages with Different Colored Perches [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2012
Color is one of the perch properties. This study was conducted to investigate the general behaviors and perching behaviors in laying hens under different group size (stocking density), and to understand the perch color (black, white or brown) preference ...
D. H. Chen, J. Bao
doaj   +1 more source

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