scholarly journals Ranging Behaviour of Commercial Free-Range Broiler Chickens 1: Factors Related to Flock Variability

Animals ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 54 ◽  
Author(s):  
Peta Taylor ◽  
Paul Hemsworth ◽  
Peter Groves ◽  
Jean-Loup Rault ◽  
Keyword(s):  
Broiler Chickens ◽  
Free Range ◽  
Ranging Behaviour

scholarly journals Uninhibited chickens: ranging behaviour impacts motor self-regulation in free-range broiler chickens ( Gallus gallus domesticus )

2020 ◽  
Vol 16 (1) ◽  
pp. 20190721 ◽  
Author(s):  
Vitor Hugo Bessa Ferreira ◽  
Lorène Reiter ◽  
Karine Germain ◽  
Ludovic Calandreau ◽  
Vanessa Guesdon
Keyword(s):  
Problem Solving ◽  
Broiler Chickens ◽  
Food Reward ◽  
Self Regulation ◽  
Gallus Domesticus ◽  
Gallus Gallus Domesticus ◽  
Free Range ◽  
Ranging Behaviour ◽  
Behavioural Types ◽  
Low Performance

Inhibiting impulsive, less flexible behaviours is of utmost importance for individual adaptation in an ever-changing environment. However, problem-solving tasks may be greatly impacted by individual differences in behaviour, since animals with distinct behavioural types perceive and interact with their environment differently, resulting in variable responses to the same stimuli. Here, we tested whether and how differences in ranging behaviour of free-range chickens affect motor self-regulation performance during a cylinder task. For this task, subjects must refrain from trying to reach a food reward through the walls of a transparent cylinder and detour to its open sides, as a sign of inhibition. Free-range chickens exhibited an overall low performance in the motor self-regulation task (31.33 ± 13.55% of correct responses), however, high rangers showed significantly poorer performance than the low rangers (23.75 ± 9.16% versus 40 ± 12.90%, respectively). These results give further support to the impacts of individual behavioural differences on cognitive performances. This is the first demonstration to our knowledge of a relationship between exploratory tendencies and motor self-regulation for an avian species.

scholarly journals Ranging Behaviour of Commercial Free-Range Broiler Chickens 2: Individual Variation

Animals ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 55 ◽  
Author(s):  
Peta Taylor ◽  
Paul Hemsworth ◽  
Peter Groves ◽  
Jean-Loup Rault ◽  
Keyword(s):  
Individual Variation ◽  
Broiler Chickens ◽  
Free Range ◽  
Ranging Behaviour

scholarly journals Individual Ranging Behaviour Patterns in Commercial Free-Range Layers as Observed through RFID Tracking

Animals ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 21 ◽  
Author(s):  
Hannah Larsen ◽  
Greg Cronin ◽  
Sabine Gebhardt-Henrich ◽  
Carolynn Smith ◽  
Paul Hemsworth ◽  
...  
Keyword(s):  
Free Range ◽  
Ranging Behaviour

Welfare of broiler chickens in Brazilian free-range versus intensive indoor production systems

2021 ◽  
pp. 1-13
Author(s):  
Elaine Cristina de Oliveira sans ◽  
Fabiano Dahlke ◽  
Juliana Freitas Federici ◽  
Frank Andre Maurice Tuyttens ◽  
Carla Forte Maiolino Molento
Keyword(s):  
Broiler Chickens ◽  
Production Systems ◽  
Free Range

scholarly journals Role of Pigeons in the Transmission of Avian Avulavirus (Newcastle Disease-Genotype VIId) to Chickens

Animals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 338 ◽  
Author(s):  
Hany F. Ellakany ◽  
Ahmed R. Elbestawy ◽  
Hatem S. Abd El-Hamid ◽  
Rasha E. Zedan ◽  
Ahmed R. Gado ◽  
...  
Keyword(s):  
Newcastle Disease ◽  
Post Infection ◽  
Broiler Chickens ◽  
Mortality Rates ◽  
Fatal Disease ◽  
Free Range ◽  
Viral Shedding ◽  
Commercial Broiler

Newcastle disease is an acute fatal disease of poultry. The aim of this study was to determine the dynamics of the transmission of avian avulavirus (velogenic viscerotropic Newcastle disease-genotype VIId) from either intramuscularly (IM)- or intranasally (IN) infected 8-week-old Egyptian Baladi pigeons in contact with commercial Arbor Acres broiler chickens (4 weeks of age). The mortality of IM infected chickens and pigeons was 10/10 for chickens and 8/15 for pigeons, while the mortality of IN infected chickens and pigeons was 7/10 for chickens and only 1/15 for pigeons. The concentration of viral shedding in the oropharynx was higher than that in the cloaca for both IN and IM infected pigeons. Pigeons infected IN continued shedding the virus from the oropharynx from the 4th day post-infection (dpi) up to the 16th dpi, while IM infected pigeons stopped oropharyngeal shedding at the 11th dpi. Chickens in contact with infected pigeons developed severe respiratory, digestive and nervous signs. The mortality rates in chickens in contact with IM and IN infected pigeons were 2/5 and 3/5, respectively. Chickens in contact with IM infected pigeons showed higher viral shedding titres in both the oropharynx and cloaca than chickens in contact with pigeons infected IN. In conclusion, free-range pigeons are considered an efficient carrier and transmitter of NDV-VIId compared to commercial broiler chickens raised in open houses.

scholarly journals Probiotic and prebiotic utilization in diets for free-range broiler chickens

2004 ◽  
Vol 6 (2) ◽  
pp. 99-104 ◽  
Author(s):  
K Pelícia ◽  
AA Mendes ◽  
ESPB Saldanha ◽  
CC Pizzolante ◽  
SE Takahashi ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Free Range

Interactions between broiler chickens, soil parameters and short rotation coppice willow in a free-range system

2018 ◽  
Vol 43 (9) ◽  
pp. 1009-1030 ◽  
Author(s):  
Lisanne M. Stadig ◽  
Frank A. M. Tuyttens ◽  
T. Bas Rodenburg ◽  
Bart Vandecasteele ◽  
Bart Ampe ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Short Rotation Coppice ◽  
Soil Parameters ◽  
Free Range ◽  
Short Rotation

scholarly journals Effects of shelter type, early environmental enrichment and weather conditions on free-range behaviour of slow-growing broiler chickens

animal ◽  
2017 ◽  
Vol 11 (6) ◽  
pp. 1046-1053 ◽  
Author(s):  
L.M. Stadig ◽  
T.B. Rodenburg ◽  
B. Ampe ◽  
B. Reubens ◽  
F.A.M. Tuyttens
Keyword(s):  
Broiler Chickens ◽  
Environmental Enrichment ◽  
Weather Conditions ◽  
Free Range ◽  
Slow Growing

Effect of free-range access, shelter type and weather conditions on free-range use and welfare of slow-growing broiler chickens

2017 ◽  
Vol 192 ◽  
pp. 15-23 ◽  
Author(s):  
Lisanne M. Stadig ◽  
T. Bas Rodenburg ◽  
Bart Ampe ◽  
Bert Reubens ◽  
Frank A.M. Tuyttens
Keyword(s):  
Broiler Chickens ◽  
Weather Conditions ◽  
Range Use ◽  
Free Range ◽  
Slow Growing

Prevalence of Antibiotic-Resistant Fecal Escherichia coli Isolates from Penned Broiler and Scavenging Local Chickens in Arusha, Tanzania

2016 ◽  
Vol 79 (8) ◽  
pp. 1424-1429 ◽  
Author(s):  
BERNADETHER T. RUGUMISA ◽  
DOUGLAS R. CALL ◽  
GASPARY O. MWANYIKA ◽  
REHEMA I. MRUTU ◽  
CATHERINE M. LUANDA ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Broiler Chickens ◽  
Antibiotic Resistant ◽  
Household Level ◽  
E Coli ◽  
Free Range ◽  
Mixed Breed ◽  
Commercial Source ◽  
Prophylactic Use ◽  
Local Chickens

ABSTRACT We compared the prevalence of antibiotic-resistant Escherichia coli isolates from household-level producers of broiler (commercial source breeds) and local chickens in the Arusha District of Tanzania. Households were composed of a single dwelling or residence with independent, penned broiler flocks. Free-range, scavenging chickens were mixed breed and loosely associated with individual households. A total of 1,800 E. coli isolates (1,200 from broiler and 600 from scavenging local chickens) from 75 chickens were tested for their susceptibility against 11 antibiotics by using breakpoint assays. Isolates from broiler chickens harbored a higher prevalence of antibiotic-resistant E. coli relative to scavenging local chickens, including sulfamethoxazole (80.3 versus 34%), followed by trimethoprim (69.3 versus 27.7%), tetracycline (56.8 versus 20%), streptomycin (52.7 versus 24.7%), amoxicillin (49.6 versus 17%), ampicillin (49.1 versus 16.8%), ciprofloxacin (21.9 versus 1.7%), and chloramphenicol (1.5 versus 1.2%). Except for resistance to chloramphenicol, scavenging local chickens harbored fewer resistant E. coli isolates (P < 0.05). Broiler chickens harbored more isolates that were resistant to ≥7 antibiotics (P < 0.05). The higher prevalence of antibiotic-resistant E. coli from broiler chickens correlated with the reported therapeutic and prophylactic use of antibiotics in this poultry population. We suggest that improved biosecurity measures and increased vaccination efforts would reduce reliance on antibiotics by these households.

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