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| Registros recuperados: 34 | |
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| Gopinger, Edenilse; Avila, Valdir Silveira de; Perondi, Dani; Catalan, Aiane Aparecida da Silva; Krabbe, Everton Luis; Roll, Victor Fernando Büttow. |
| The effect of stocking density in broiler chickens (11.08 and 13.20 birds m-2), between 5 and 45 days of age, was assessed with regard to performance, cut yield, litter moisture and frequency of pododermatitis injuries. Further, 476 one-day chicks Cobb 500® were distributed in a completely randomized design at two densities (birds m-²), with seven replications per treatment in 14 experimental units. Birds housed at a lower density (11.08) increased feed intake (p < 0.05), without any effect on weight gain and feed conversion. Retail yields were not influenced (p > 0.05) by treatments. In the case of higher density (3.20)the litter showed higher moisture content (p < 0.05) at 28 and 35 days of age. There was a higher occurrence of pododermatitis in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chickens; Feed intake; Stocking; Environment; Pododermatitis; Welfare. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24732 |
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| MORI,Agnes Veridiana; MENDONÇA Jr.,Cássio Xavier de; WATANABE,Claudio. |
| The purpose of this study was to evaluate the effect of cholestyramine and lovastatin, lipid-lowering agents, upon egg quality, reproductive performance, plasma lipids and egg yolk cholesterol levels of Shaver laying hens. Twenty-six-weeks-old hens were fed basal diet without animal products containing 0.2% cholestyramine (COL1), 0.3% cholestyramine (COL2) or 0.005% lovastatin (LOV) for 6 weeks. It was observed that the supplementation of the drugs did not impair albumen and shell quality. Hen performance was not adversely affected, with the exception of the significant reduction (p < 0.05) in egg weights. No significant changes were observed on plasma lipids, and egg yolk cholesterol remained unchanged with the addition of the drugs. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cholesterol; Cholestyramine; Lovastatin; Egg Yolk; Chickens. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000100015 |
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| Alves,Lucas Bocchini Rodrigues; Freitas Neto,Oliveiro Caetano de; Batista,Diego Felipe Alves; Barbosa,Fernanda de Oliveira; Rubio,Marcela da Silva; Souza,Andrei Itajahy Secundo de; Almeida,Adriana Maria de; Barrow,Paul Andrew; Berchieri Junior,Angelo. |
| Abstract Salmonella Gallinarum is a host-restrict pathogen that causes fowl typhoid, a severe systemic disease that is one of the major concerns to the poultry industry worldwide. When infecting the bird, SG makes use of evasion mechanisms to survive and to replicate within macrophages. In this context, phoPQ genes encode a two-component regulatory system (PhoPQ) that regulates virulence genes responsible for adaptation of Salmonella spp. to antimicrobial factors such as low pH, antimicrobial peptides and deprivation of bivalent cations. The role of the mentioned genes to SG remains to be investigated. In the present study a phoPQ-depleted SG strain (SG ΔphoPQ) was constructed and its virulence assessed in twenty-day-old laying hens susceptible to fowl... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mutation; Virulence; Fowl typhoid; Adaptation; Chickens. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000300601 |
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| Silva,Marco Aurélio Chiara; Silva,Miriele Caroline da; Pinheiro,João Waine; Castro-Goméz,Raul Jorge Hernan; Murakami,Alice Eiko; Loyola,Wagner; Venancio,Emerson José. |
| ABSTRACT: Advances in the fields of glycobiology and immunology have provided many insights into the role of carbohydrate-protein interactions in the immune system. Jacalin of Artocarpus integrifolia (JCA) and structural mannoprotein of Saccharomyces uvarum (MPS) are molecules with immunomodulatory properties. JCA is an IgA human lectin binding molecule that causes the mitogenic stimulation of immune cells, production of cytokines, chemotaxis, and activation of leukocytes. Studies on the immunomodulatory properties of JCA and MPS in mammals and fish suggest that they have an action on antibody production. The aim of this study was to investigate the possible action of JCA and MPS on the production of specific antibodies in laying hens. For this, laying... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artocarpus integrifolia; Chickens; IgY; Jacalin; Mannoprotein; Humoral immune response; Saccharomyces uvarum. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400453 |
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| CAMPOS, I. S.; GONZAGA, D. S. de O. M.; SCHMIDT, G. S.; AVILA, V. S. de; JAENISCH, F. R. F.; ALBINO, J. J.; BASSI, L. J.; FLEMING, J. R.; PORTOLEZ, L. F. B.. |
| O incentivo à criação de galinhas, por meio de programas do governo do Acre, possibilitou a implantação do Sistema de Produção de Frango Colonial desenvolvido pela Embrapa Suínos e Aves o qual vem apresentando resultados que indicam a viabilidade dessa criação no Estado. Esse trabalho vem sendo desenvolvido em parceria com a Embrapa Acre, Secretaria de Extrativismo e Produção Familiar (Seprof), Secretaria de Agropecuária (Seap), Serviço Brasileiro de Apoio às Micro e Pequenas Empresas (Sebrae Acre) e produtores da região do Alto Acre. Com esta publicação espera-se oferecer informações que possam contribuir para o aprimoramento dessa cadeia produtiva. |
| Tipo: Folhetos |
Palavras-chave: Frango colonial; Pollos; Manipulación de animales; Economía de la producción; Explotación agrícola familiar; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Manejo; Alimentação; Custo de Produção; Raça; Agricultura Familiar; Chickens; Animal handling; Production economics; Family farms. |
| Ano: 2005 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/503800 |
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| SILVA, J. A. de. |
| O presente trabalho determina, através de uma metodologia bastante simples, as variações estacionais, as margens e os "markups" de comercialização de sete produtos considerados básicos na mesa do consumidor acreano: farinha de mandioca, ovos, leite pasteurizado, carne de frango, batata, cebola, e alho. |
| Tipo: Folhetos |
Palavras-chave: Harina de yuca; Huevos; Pollos; Patatas; Cebollas; Productos animales; Productos de origen vegetal; Comercialización; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Farinha; Ovo; Leite; Frango; Batata; Cebola; Alho; Produto Hortigranjeiro; Comercialização; Cassava flour; Eggs; Chickens; Potatoes; Onions; Animal products; Plant products; Commercialization. |
| Ano: 1985 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492400 |
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| MacDonald, James M.. |
| Broiler production in the United States is coordinated almost entirely through systems of production contracts, in which a grower’s compensation is based, in part, on how the grower’s performance compares with that of other growers. The industry is undergoing a gradual structural change as production shifts to larger broiler enterprises that provide larger shares of an operator’s household income. Larger enterprises require substantially larger investments in broiler housing, and new or retrofitted houses are also an important source of productivity growth in the industry. This report, based on a large and representative survey of broiler operations, describes the industry’s organization, housing features, contract design, fees and enterprise cost... |
| Tipo: Report |
Palavras-chave: Broilers; Chickens; Production contracts; Broiler grower financial performance; Chicken housing; Chicken litter; Poultry; Farm Management; Production Economics. |
| Ano: 2008 |
URL: http://purl.umn.edu/58627 |
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| Camilotti,E; Moraes,LB; Furian,TQ; Borges,KA; Moraes,HLS; Salle,CTP. |
| ABSTRACT The Infectious Bursal Disease (IBD) is a contagious viral disease that affects young chickens and may cause high morbidity and mortality. As the virus is very resistant to the environment, vaccination is required in case of high infection pressure. Due to variations in the virulence degree of the vaccines available to control IBD, this study aimed at evaluating the pathogenicity and immunogenicity of three types of vaccines. In total, 220 one-day-old specific pathogen free (SPF) chickens were immunized with recombinant, immune-complex and intermediate vaccines, or not vaccinated (55 birds per group) and challenged with IBD G11 strain on day 25. On days 25, 30, and 35, the Bursa of Fabricius (BF) were submitted to gross and histological... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Infectious Bursal Disease; Chickens; Vaccine; Immunity. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000200303 |
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| Xie,LJ; Xie,XZ; Zhou,YW; Liang,C; Jiang,YY; Chen,Z. |
| ABSTRACT We investigated the effect of heat stress (HS) on the expression of the GABA receptor in the hypothalamic-pituitary-gonadal (HPG) axis of Wenchang chickens. Real-time quantitative RT-PCR (qRT-PCR) was used to quantify the GABA receptor mRNA levels along the HPG axis of chickens under HS (40±0.5 °C) for 1-6 weeks. Our results showed that the expression of GABAA and GABAB receptor at the mRNAs levels in the tissues of HPG axis exhibited fluctuation and variability. After HS, the mRNA level of GABAA receptor was significantly reduced in the hypothalamus of 1-week-old and in the pituitary of 3-week-old chickens, but significantly increased in the pituitary of 1-, 4-, and 5-week-old chickens. The GABAB receptor mRNA level significantly declined in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heat Stress; GABA receptor mRNA; HPG axis; Chickens. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000200277 |
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| Registros recuperados: 34 | |
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