Higher fear of predators does not decrease outdoor range use in free-range Rowan Ranger broiler chickens
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چکیده
منابع مشابه
Campylobacter infection of broiler chickens in a free-range environment
Campylobacter jejuni is the most common cause of bacterial gastroenteritis worldwide, with contaminated chicken meat considered to represent a major source of human infection. Biosecurity measures can reduce C. jejuni shedding rates of housed chickens, but the increasing popularity of free-range and organic meat raises the question of whether the welfare benefits of extensive production are com...
متن کاملFree Range Hens Use the Range More When the Outdoor Environment Is Enriched
To evaluate the role of using forage, shade and shelterbelts in attracting birds into the range, three trials were undertaken with free range layers both on a research facility and on commercial farms. Each of the trials on the free range research facility in South Australia used a total of 120 laying hens (Hyline Brown). Birds were housed in an eco-shelter which had 6 internal pens of equal si...
متن کاملGastrointestinal parasites of free-range chickens.
The aim of the study was to determine the prevalence and intensity of parasitic gastrointestinal infections in free-range chickens from the West Pomerania province. Experimental material for the study was taken from 10 farms. Breeds raised in farms participating in the study included miniature chickens called Polish Lilliputians and Green- legged Partridge. A total of 104 samples of faeces were...
متن کاملGENERALIZED HIGHER-RANK NUMERICAL RANGE
In this note, a generalization of higher rank numerical range isintroduced and some of its properties are investigated
متن کاملRanging Behaviour of Commercial Free-Range Broiler Chickens 1: Factors Related to Flock Variability
Little is known about the ranging behaviour of chickens. Understanding ranging behaviour is required to improve management and shed and range design to ensure optimal ranging opportunities. Using Radio Frequency Identification technology, we tracked 300 individual broiler chickens in each of four mixed sex ROSS 308 flocks on one commercial farm across two seasons. Ranging behaviour was tracked ...
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ژورنال
عنوان ژورنال: Acta Agriculturae Scandinavica, Section A — Animal Science
سال: 2016
ISSN: 0906-4702,1651-1972
DOI: 10.1080/09064702.2017.1337214