Free Range Chickens
Mostrando 13-24 de 26 artigos, teses e dissertações.
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13. Performance and carcass characteristics of free-range broiler chickens fed diets containing alternative feedstuffs
The present study was carried out to evaluate the effects of alternative feedstuffs as partial substitutes of corn and soybean in free-range broiler diets on performance, carcass yield and technical-economic viability. A total of 400 Pescoço Pelado broilers were distributed in a completely randomized experimental design (CRD), with four treatments (treatmen
Revista Brasileira de Ciência Avícola. Publicado em: 2011-09
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14. Levantamento soroepidemiológico e isolamento do toxoplasma gondii em galinhas caipiras (Gallus gallus domesticus) no Estado do Espírito Santo, Brasil
Introdução. A prevalência de infecção por Toxoplasma gondii em galinhas caipiras varia nas diferentes regiões e não se conhece a prevalência em galinhas caipiras no Estado do Espírito Santo. Objetivo. Estudar a prevalência da infecção por T. gondii em galinhas caipiras de municípios do E. Santo, tentar o isolamento do parasito nos tecidos de ave
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/05/2010
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15. Population biology of Toxoplasma gondii: what's out and where did they come from
Until recently, Toxoplasma gondii was considered to be clonal with little genetic variability. In this paper we summarize recent genotyping data from chickens in Brazil, and pigs, lambs and white-tailed deer in the USA, to demonstrate the high genetic diversity and geographical distribution of T. gondii. A total of 149 T. gondii isolates from 13 geographical
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-03
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16. Detecção do vírus da anemia infecciosa das galinhas em Minas Gerais
A wide range study was conducted on chicken anemia virus (CAV) in order to investigate the occurrence of CAV in different chicken populations and potential sources of infection. Tissue and biological samples were studied by nested PCR and sequencing, including thirty-two industrial chickens, twenty subsistence chickens, twenty-eight commercial poultry live a
Publicado em: 2009
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17. Biological and genotypic characterization of Toxoplasma gondii isolated from free ranges chickens from Pantanal of Mato Grosso do Sul / Caracterização biológica e genotípica de isolados da Toxoplasma gondii obtidos de galinhas de criação livre do Pantanal do Mato Grosso do Sul
Despite the protozoan Toxoplasma gondii is considered the only valid species for the genus, three clonal lineages are recognized, known as the Type I, Type II and Type III, which predominate in Western European countries and the USA. The search for samples of this parasite from other regions of the world, as in the case of Brazil, has revealed different geno
Publicado em: 2009
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18. Nutritional evaluation of babaçu cake for label rouge broiler chiks diet / Avaliação nutricional da torta de babaçu e sua utilização em dietas para frangos de corte Label Rouge
Three research works were conducted in order to determine the chemical composition, nutrient and energy digestibility, apparent metabolizable energy (EMA) and apparent metabolizable energy corrected by nitrogen retention (EMAn) of babaçu cake, as well as to evaluate the results of its use on performance and carcass traits of Label Rouge chicks. The first ex
Publicado em: 2009
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19. Inheritance of a new albino mutation in Brazilian free-range black chickens
A genetically recessive albino mutation, which inhibits pigment development in the eyes, skin, and feathers of domestic chickens from Brazil, is described. This mutation appeared in a flock of completely black chickens of a private breeder. There are no information on the origin, breed, or specific line of the birds. Pigment inhibition is apparently complete
Revista Brasileira de Ciência Avícola. Publicado em: 2008-09
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20. Avaliação nutricional de co-produtos do milho para frango de corte caipira / Evaluation nutrition of byproduct of corn for free-range broiler chickens
The objective of this work was to determine the chemical composition and the metabolic yield of the integral germ of corn (IGC), bran of glúten 21% (BG-21) and bran of glúten 60% (BG-60). Three samples of each waste was analyzes: dry matter, crude protein, ash, fat, crude energy, crud fiber concentration. After, three assays of metabolization was carried t
Publicado em: 2007
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21. Use of lytic bacteriophages to reduce Salmonella Enteritidis in experimentally contaminated chicken cuts
Reducing Salmonella contamination in poultry is of major importance to prevent the introduction of this microorganism into the food chain. Salmonellae may spread during storage time (shelf life) whenever pre-harvest control fails or post-harvest contamination occurs. Therefore, preventive measures should also be used in the post-harvest level of poultry prod
Revista Brasileira de Ciência Avícola. Publicado em: 2005-12
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22. Efficiency of prebiotics and probiotics on the performance, yield, meat quality and presence of Salmonella spp in carcasses of free-range broiler chickens
Two trials were carried out in the present study. Trial I evaluated the performance, carcass yield and breast meat quality, whereas Trial II evaluated the efficacy of utilizing prebiotics + probiotics on the control of Salmonella spp incidence in the carcasses of free-range broilers. In Trial I, 688 one-day-old male chicks of the Naked Neck Label Rouge strai
Revista Brasileira de Ciência Avícola. Publicado em: 2005-09
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23. Alterações estruturais dos dúctulos eferentes de galos domésticos (Gallus gallus domesticus) acometidos pela Litíase Epididimária
Epididymary lithiasis (EL) was studied using light and electronic microscopy histopathology in roosters (Gallus gallus domesticus) naturally affected by EL in Minas Gerais, Brazil. EL has been described in the United States and Brazil as a cause of low fertility of male chickens, although the actual primary etiology is as yet unknown. Industrial and free-ran
Publicado em: 2005
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24. Use of prebiotics and probiotics of bacterial and yeast origin for free-range broiler chickens
This study aimed to evaluate the effects of probiotics and prebiotics of bacterial and yeast origin on the performance, development of the digestive system, carcass yield and meat quality of free-range broiler chickens. Five hundred and sixty male chicks of the strain ISA S757-N were reared from one to 84 days old. The birds were distributed in four treatmen
Revista Brasileira de Ciência Avícola. Publicado em: 2004-09