Free Range Chickens
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Morphometric Traits, Serum Chemistry and Antibody Response of Three Chicken Genotypes under Free-Range, Semi-Intensive and Intensive Housing Systems
ABSTRACT The present study evaluated the effect of housing system on the morphometrics, serum chemistry and antibody response of dual-purpose chicken genotypes. A total of 156 pullets and 39 cockerels were randomly picked from 18 treatment block groups (3 housing system × 3 genotypes × 2 sexes) according to Randomized Complete Block Design (RCBD). Three ge
Braz. J. Poult. Sci.. Publicado em: 09/05/2019
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2. Highly Pathogenic and Multidrug Resistant Avian Pathogenic Escherichia Coli in Free-Range Chickens from Brazil
ABSTRACT Avian pathogenic Escherichiacoli (APEC) virulence mechanism has been continuously studied and it is believed to be multifactorial and because of this, this work aimed to characterize potentially APEC strains isolated from free-range hens. Isolates were submitted to PCR for the detection of virulence genes, which were of high prevalence. In vivo inoc
Braz. J. Poult. Sci.. Publicado em: 09/05/2019
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3. Welfare-friendly Products: availability, labeling and opinion of retailers in Curitiba, Southern Brazil,
Abstract: The market for welfare-friendly products (WFP) is increasing worldwide; however, there is a lack of information on this topic in Brazil. We investigated availability, product information and opinion of retailers about WFP in Curitiba, Southern Brazil. We visited 36 strategically located retailers, conducting product evaluation and interviews with m
Rev. Econ. Sociol. Rural. Publicado em: 2018-03
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4. Physiological Responses of Slow-Growing Chickens under Diurnally Cycling Temperature in a Hot Environment
ABSTRACT Free-range chicken production has significantly increased in recent years and it often entails exposing birds to cyclic environmental conditions. The objective of the current study was to investigate the effect of bird strain and sex, and rearing system on the physiological responses of Potchefstroom Koekoek (PK), Ovambo (OV) and Naked Neck (NN) chi
Rev. Bras. Cienc. Avic.. Publicado em: 2017-12
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5. Effects of Hen Age and Egg Weight Class on the Hatchability of Free Range Indigenous Chicken Eggs
ABSTRACT In total, 806 eggs of free-range Hassawi indigenous chickens were collected from local farm in Saudi Arabia. Eggs were weekly collected for 11 weeks. Initial egg weight (IEW) was recorded, and eggs were graded into four classes (A: 35-40 g, B: 40-45 g, C: 45-50 g, and D: 50-55 g). Eggs were stored for seven days at 75-80% relative humidity and 14-16
Rev. Bras. Cienc. Avic.. Publicado em: 2017-03
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6. Evaluation of Meat and Egg Traits of Beijing-you Chickens Rotationally Grazing on Chicory Pasture in a Chestnut Forest
ABSTRACT Barn and cage-fed chickens have presented several problems, such as high rates of infectious disease and consequent antibiotic abuse, poorer chicken health and welfare, and often poorer meat and egg quality compared with free-range chickens. The poultry agroforestry system is becoming increasingly popular in many poultry farms nowadays. In this stud
Rev. Bras. Cienc. Avic.. Publicado em: 2016-09
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7. Pathological Aspects of a Subclinical Marek's Disease Case in Free-Range Chickens
Abstract The present report aims at describing the occurrence of Marek's Disease (MD) in a free range poultry farm based on macroscopic and microscopic lesions. For this purpose, seven free-range chickens were evaluated by gross and microscopic examination. Tumor lesions were observed in the liver and ovary, in addition of enlarged kidney and spleen, skin th
Rev. Bras. Cienc. Avic.. Publicado em: 2016-03
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8. Digestible Lysine on Live Performance of Chicken Type Naked Neck During the Starter Phase
ABSTRACT The poultry market has changed due to a higher consumer interest on products with differentiated organoleptic characteristics, making of free-range broiler production a promising activity. This experiment was conducted to determine the digestible lysine requirements of Redbro Cou Nu male and female chickens during the starter phase (one to 21 days o
Rev. Bras. Cienc. Avic.. Publicado em: 2015-12
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9. Waterborne toxoplasmosis investigated and analysed under hydrogeological assessment: new data and perspectives for further research
We present a set of data on human and chicken Toxoplasma gondiiseroprevalence that was investigated and analysed in light of groundwater vulnerability information in an area endemic for waterborne toxoplasmosis in Brazil. Hydrogeological assessment was undertaken to select sites for water collection from wells for T. gondii oocyst testing and for collecting
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-11
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10. Epidemiological aspects of Toxoplasma gondii infection in riverside communities in the Southern Brazilian Amazon
INTRODUCTION: Toxoplasma gondii infection is widely prevalent in humans and other animals worldwide. Information on the prevalence of T. gondii infection is scarce in some regions of Brazil, including riverside communities along the Amazon River basin. M METHODS: The prevalence of T. gondii in 231 people, aged 1-85 years, who were living in four riverside c
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-06
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11. Performance of free-range chickens reared in production modules enriched with shade net and perches
An experiment was carried out to evaluate the effect of environmental enrichment in a free-range chicken production system on live performance as a function of microclimate, physiological parameters, and performance parameters. Four production modules were divided into four pens with 10 birds each, totaling 60 birds. The following treatments were applied: ac
Rev. Bras. Cienc. Avic.. Publicado em: 2014-03
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12. Prevalência da infecção por Toxoplasma gondii em galinhas criadas extensivamente em Rio Bonito, Rio de Janeiro
The prevalence of T. gondii infection was investigated in free-range chickens for human consumption in the county of Rio Bonito, Rio de Janeiro, Brazil. Thus, a search for antibodies to T. gondii by indirect fluorescent antibody test was done in the serum of 220 chickens from twenty two farms. Titres equal or greater than 16 were considered positive. The pre
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2012-10