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Registros recuperados: 119
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A retrospective PCR investigation of avian Orthoreovirus, chicken infectious anemia and fowl Aviadenovirus genomes contamination in commercial poultry vaccines in Brazil Arq. Bras. Med. Vet. Zootec.
Barrios,P.R.; Marin,S.Y.; Rios,R.L.; Pereira,C.G.; Resende,M.; Resende,J.S.; Martins,N.R.S..
Vacinas avícolas vivas comerciais produzidas entre 1991 e 2005 foram examinadas para a presença de genomas dos vírus da anemia infecciosa das galinhas (Gyrovirus CAV), da hepatite por corpúsculo de inclusão (Aviadenovirus FAdV) e da artrite viral/síndrome da má absorção (Orthoreovirus aviário ARV). Vinte e seis partidas de vacinas vivas liofilizadas de oito fabricantes com lacre original foram examinadas. As extrações de DNA e PCR de CAV e FAdV, e de RNA e RT-PCR para ARV, foram descritas previamente. Contaminações triplas de ARV, CAV e FAdV foram detectadas em vacinas de mesmo fabricante, produzidas em 1991 e 1992 contra a doença de Newcastle (DN), e para a encefalomielite aviária, produzida em 1994. ARV e CAV em co-infecção foram encontrados em vacinas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; Vaccine; Avian Orthoreovirus; Aviadenovirus; Gyrovirus.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000100035
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A Review of Leucocytozoon caulleryi Infection in Chickens OAK
Morii, Tsutomu.
Palavras-chave: Leucocytozoon caulleryi; Leucocytozoonosis; Chicken; Culicoides biting midge.
Ano: 1992 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/173
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A VP3/VP1 gene polymerase chain reaction assay for detection of chicken anemia virus in broiler samples Arq. Bras. Med. Vet. Zootec.
Nogueira,E.O.; Brentano,L.; Ferreira,A.J.P..
A PCR assay was designed for amplification of the highly conserved VP3 gene and a 5' region of the VP1 gene, for the diagnosis of CAV in organ samples of broiler flocks suspected of chicken infectious anemia. A comparison of the VP3/VP1 PCR with in vivo virus isolation revealed 100% agreement of the results, with 13 positive and 3 negative samples in both assays, indicating that the VP3/VP1 PCR is a specific diagnostic method. Tissues from additional 24 broiler chicken flocks, with CAV-like lesions and clinical history were then tested only by the VP3/VP1 PCR and a reference PCR with published primers for the VP1 gene. Nineteen samples resulted positive and one negative in both PCR, while another 4 samples were positive only in the VP3/VP1 PCR. These...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; Chicken anemia virus; CAV; PCR; Diagnostic test.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000800001
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Açaí seed bran in the feed of slow-growth broilers Acta Amazonica
ARRUDA,Janaína de Cássia Braga; FONSECA,Lívia Anália Bentes da; PINTO,Leonardo César Portal; PINHEIRO,Higor César de Oliveira; MONTEIRO,Brenda Thamara Oliveira; MANNO,Maria Cristina; LIMA,Kedson Raul de Souza; LIMA,Ana Rita de.
ABSTRACT The aim of this study was to analyze the potential use of açaí seeds as an alternative ingredient in the feed of slow-growth broilers until 28 days of age. We carried out a bromatological analysis of fractions of the açaí fruit. The açaí seed without mesocarp was the best choice for formulation of the açaí seed bran (ASB), which was evaluated in terms of bird performance and economic viability of the supplemented feed. A total of 416 male chicks of the French Red-Naked Neck lineage were used in a completely randomized design with four treatments (0, 2, 6 and 10% inclusion of ASBin the feed) with eight replicates each. The results indicated that ASB can be included in proportions of up to 10% in the diet of slow growth broilers at early development...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative feed; Chicken; Agroindustrial residue; Sustainability; Euterpe oleraceae.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000400298
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Alloantigen Systems and Genetic Resistance of Chickens to Coccidiosis OAK
Nakai, Yutaka.
Palavras-chave: Alloanligen; Chicken; Coccidiosis; Genetics; Disease resistance.
Ano: 1994 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/199
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Antimicrobial Resistance and Molecular Characterization of Salmonella Enterica Serotypes Isolated from Poultry Sources in Brazil Rev. Bras. Ciênc. Avic.
Borges,KA; Furian,TQ; Souza,SN; Salle,CTP; Moraes,HLS; Nascimento,VP.
ABSTRACT Salmonella spp. remain among the most important agents of foodborne diseases worldwide. The importance of Salmonella spp. in public health is linked to their wide range of antimicrobial resistance and to their pathogenicity and virulence in both human and animal hosts. The aim of this study was to determine the antimicrobial resistance patterns for Salmonella serotypes isolated from poultry sources in Brazil and to detect virulence-associated genes and verify their association with specific serotypes. A total of 163 strains of Salmonella enterica isolated from poultry sources in Southern Brazil were selected, and each belonged to one of 11 different serotypes. They were tested against ten antibiotics and examined for the presence of 26...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Antibiotic susceptibility; Genetic virulence; Chicken; Salmonellosis; Serovars.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100500
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Antimicrobial susceptibility of Salmonella Gallinarum and Salmonella Pullorum isolated from ill poultry in Brazil Ciência Rural
Penha Filho,Rafael Antonio Casarin; Ferreira,Joseane Cristina; Kanashiro,Ana Maria Iba; Darini,Ana Lúcia da Costa; Berchieri Junior,Angelo.
ABSTRACT: Salmonella Gallinarum (S. Gallinarum) and Salmonella Pullorum (S. Pullorum) are poultry host-specific, agents of fowl typhoid and pullorum disease, respectively. These biovars cause septicemic infections, resulting in high mortality. Outbreaks are frequently reported worldwide, causing losses due to the elimination of infected flocks and treatments. The use of antimicrobial agents is frequent in poultry farms to prevent or treat gastrointestinal infections. In the present research it was evaluated the antimicrobial susceptibility of 50 S. Gallinarum and S. Pullorum isolates, from outbreaks that occurred between 1987 to 1991 and 2006 to 2013. The comparison of the susceptibility profiles showed that all isolates were susceptible to β-lactams. All...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Quinolones; Chicken; Fowl typhoid; Antimicrobial susceptibility; Salmonella..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300513
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Boron supplementation in broiler diets Rev. Bras. Ciênc. Avic.
Fassani,EJ; Bertechini,AG; Brito,JAG; Kato,RK; Fialho,ET; Geraldo,A.
Boron supplementation in broiler feed is not a routine practice. However, some reports suggest a positive effect of boron on performance. This study assessed the effects of boron supplementation on broiler performance. Diets were based on maize and soybean meal, using boric acid P.A. as boron source. Six supplementation levels (0, 30, 60, 90, 120 and 150 ppm) were evaluated using 1,440 one-day old males housed at a density of 30 chickens in each of 48 experimental plots of 3m². A completely randomized block design was used with 8 replicates. Feed intake, weight gain and feed conversion were assessed in the periods from 1 to 7 days, 1 to 21 days and 1 to 42 days of age, and viability was evaluated for the total 42-day rearing period. No performance variable...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal nutrition; Boron; Broiler; Chicken; Performance.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000400004
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Campylobacter Jejuni Increases Transcribed Il-1 B and Causes Morphometric Changes in the Ileal Enterocytes of Chickens Rev. Bras. Ciênc. Avic.
Fonseca,BB; Ferreira Júnior,A; Santos,JP dos; Coelho,LR; Rossi,DA; Melo,RT; Mendonça,EP; Araújo,TG; Alves,RN; Beletti,ME.
Abstract Campylobacteriosis is a worldwide foodborne zoonosis disease caused by Campylobacter jejuni. This microorganism is considered a commensal bacterium in chicken hosts. C. jejuni produces epithelial cell modifications and induces a cytokine gene transcription innate immunity repertoire. In the present study, we describe the invasiveness, morphological cellular modifications, and transcript level expressions of innate immune cytokines from C. jejuni-inoculated chicken ileum explants. C. jejuni was internalized by epithelial ileum cells at 15 minutes postinoculation (p.i.) and was detected intracellularly for 4hs (p.i.). Inoculated explants displayed significant increases in cell height. C. jejuni induced a significant elevation of Transforming Growth...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Campylobacter jejuni; Chicken; Explants; TGF-b3; IL-1b.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100063
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Campylobacter jejuni occurrence in chicken fecal samples from small properties in Pelotas, southern of Brazil BJM
Gomes,Fabiane R.; Curcio,Bruna R.; Ladeira,Sílvia R.L.; Fernández,Heriberto; Meireles,Mário Carlos Araújo.
The aim of this study was to evaluate the occurrence of thermophilic Campylobacter species in broiler flocks from 26 small properties located near the campus of Federal University of Pelotas, RS, Brazil. A total of 404 chicken fecal samples were analyzed and after isolation, identification and biotyping was performed according to Lior´s scheme. Twenty one strains (5.2%) of Campylobacter jejuni biotype II were isolated from animals from seven properties (26.9%), with a variation from 3% to 34.6% among the positive properties. We also analyzed twelve C. jejuni isolates by polymerase chain reaction (PCR), using specific primers that generate a fragment of 402 pb. Our study allowed us to observe that chickens raised in non-industrial establishments without...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Campylobacter jejuni; Thermotolerant species; Diarrhea; Chicken.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300032
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Campylobacter sp in eggs from cloacal swab positive breeder hens BJM
Fonseca,Belchiolina Beatriz; Soncini,Ricardo Alfredo; Gimarães,Adelia Rodrigues; Rossi,Daise Aparecida.
Campylobacter sp is a microaerophilic, thermotolerating Gram negative bacterium, known to be one of the main causes of food-borne human infections. Among the foods that carry these microorganisms, the chicken is outstanding. In Brazil, a large chicken exporting country, few researches are conducted about their prevalence in breeder hens and the transmission through eggs. The aim of this research was to verify the presence of Campylobacter sp in the shells and within the eggs from positive cloacal swab breeder hens. Microbiological analyses were made on cloacal swabs of 140 weighed breeder hens. The positive breeder hens were set aside and in a total of 244 of their eggs, Campylobacter sp was present in macerated shells and yolk contents during 7 weeks. Out...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Campylobacter; Eggs; Chicken; Vertical transmission; Epidemiology.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400032
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Carcass and parts yield of broilers reared under a semi-extensive system Rev. Bras. Ciênc. Avic.
Faria,PB; Bressan,MC; Souza,XR de; Rossato,LV; Botega,LMG; Gama,LT da.
An experiment was carried out to evaluate carcass traits of male and female broilers of two genetic strains (Paraíso Pedrês and Pescoço Pelado), slaughtered at 65, 75, 85 and 95 days of age, and reared under a semi-extensive production system. The following parameters were evaluated: body weight at slaughter (BWs), carcass weight (CW), carcass yield (CY), parts yield, including breast, drumstick, thighs, back, neck, feet, wings, abdominal fat pad (AF), and giblets (gizzard, heart, liver). Paraíso Pedrês males presented higher BWs and CW. Paraíso Pedrês females had higher breast yield. Thighs and drumstick yields were higher in Pescoço Pelado males. Back yield was similar at 85 and 95 days of age, wing yield declined with age. AF yield was higher in Paraíso...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; Carcass traits; Semi-extensive system.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000300003
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Cardiac Indicators, Serum Antioxidant Activity, and Growth Performance as Affected by Hawthorn Extract (Crateagus oxyacantha) in Pulmonary Hypertensive Chickens Rev. Bras. Ciênc. Avic.
Ahmadipour,B; Kalantar,M; Kalantar,MH.
ABSTRACT Hawthorn has been traditionally used to improve blood circulation and medicating cardiac disorders as well as blood stasis and elimination of pulmonary hypertension. An experiment was conducted to evaluate the effect of different levels of hawthorn extract in the drinking water on cardiac indicators, serum antioxidant activity, growth and immunity of pulmonary hypertensive broilers reared at high altitude and prone to ascites. A total of 225 one-day-old unsexed broiler chicks (Ross308) were randomly assigned to 15 floor pens. A basal corn-soy based diet was formulated for all treatments. The treatments consisted of the addition of 0, 0.1, or 0.2 mL of hawthorn extract per liter of drinking water. Both levels of hawthorn flavonoid extract...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; Hawthorn flavonoid extract; PHS.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300320
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Cardioprotective effect of ornitho-kinin in an anesthetized, open-chest chicken model of acute coronary occlusion BJMBR
Prezoto,B.C.; Couto,G.K.; Rossoni,L.V.; Schoorlemmer,G.H.M.; Carillo,B.A.; Campos,R.R..
The generation of bradykinin (BK; Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg) in blood and kallidin (Lys-BK) in tissues by the action of the kallikrein-kinin system has received little attention in non-mammalian vertebrates. In mammals, kallidin can be generated by the coronary endothelium and myocytes in response to ischemia, mediating cardioprotective events. The plasma of birds lacks two key components of the kallikrein-kinin system: the low molecular weight kininogen and a prekallikrein activator analogous to mammalian factor XII, but treatment with bovine plasma kallikrein generates ornitho-kinin [Thr6,Leu8]-BK. The possible cardioprotective effect of ornitho-kinin infusion was investigated in an anesthetized, open-chest chicken model of acute coronary...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; Infarct size; Kallikrein-kinin system; Ornitho-kinin; Factor XII.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000900009
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Characterization of Hilly Chickens in Consideration of Climate Change Factors: Light and Heat Rev. Bras. Ciênc. Avic.
Khan,MKI; Ali,M; Akter,MA; Zaman,S; Miah,G.
ABSTRACT Hilly chickens were characterized from January 2015 to September 2016 considering climate factors (light and heat). The experimental birds were divided into three groups (heat stress; light and control). The heat was generated in the chicken’s shelter by a black shaded light (Lantern) for two to three hours more after sunset. A lighting device (Lantern) was kept in the chicken’s shelter for the same period for increasing daylight duration. The individual chicken’s egg production, egg weight and mature live weight were studied from onset of egg production. It was observed that reddish brown hilly type chicken produced more (100.80 no/year/chicken) and larger sized (43.21g) eggs than spotted chicken (83.4 no/year/chicken and 40.46g). Among the three...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; Climatic factors; Microsatellite; Genetic diversity.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400731
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Chicken serologic response to Salmonella enterica serotype Typhimurium assessed by Elisa Rev. Bras. Ciênc. Avic.
Oliveira,GH; Berchieri Jr,A; Montassier,HJ.
This study evaluated two enzyme-linked immunosorbent assays (ELISA) in the detection of chicken serologic response against Salmonella enterica sorotype Typhimurium. The assays have used as detecting antigen the soluble bacterial proteins of a non-flagellated strain of Salmonella Typhimurium (AgTM), and antibody conjugated to peroxidase or alkaline phosphatase. According to the results, optimal dilutions of antigen (concentration 5.49 mg/mL) and serum samples in both assays were 1:20,000 and 1:1,000, respectively. In such conditions, the ELISA/AgTM was able to detect serological response to Salmonella Typhimurium. Cross-reactions to Salmonella serotypes Gallinarum and Pullorum were seen, but not with other serotypes such as Enteritidis.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; ELISA; Enzyme; Salmonella sp; Serology.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100008
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Comparision of the BAX® System with an in-house MSRV method for the detection of Salmonella in chicken carcasses and pork meat BJM
Franchin,Paulo R.; Ogliari,Paulo J.; Andrade,Dalton F.; Chiapinoto,Maura; Lemos,Giovana; Rebelatto,Marina; Silva,Ivair G. da; Batista,Cleide R.V..
A study was performed to compare the analytical procedure of the BAX® System for Salmonella PCR assay with the Modified Semi-Solid Rappaport-Vassiliadis (MSRV) method, for the detection of Salmonella in naturally contaminated chicken carcass samples (n = 762) and raw pork meat (n = 566). The chicken carcasses samples were collected during slaughtering after defeathering or immediately after evisceration and the raw pork meat collected from the deboned head of recently slaughtered pigs and others deboned raw fresh pork meat. The BAX® System detected 134 Salmonella-positive samples in chicken carcasses and 145 samples in pork meat, while the MSRV method isolated 142 and 144 Salmonella-positive samples, respectively. No significant difference was observed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: BAX® System; MSRV method; Salmonella; Chicken; Pork meat.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400022
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Comparison of HMOX1 expression and enzyme activity in blue-shelled chickens and brown-shelled chickens Genet. Mol. Biol.
Wang,ZhePeng; Liu,RuiFang; Wang,AnRu.
Blue egg coloring is attributed to biliverdin derived from the oxidative degradation of heme through catalysis by heme oxygenase (HO). The pigment is secreted into the eggshell by the shell gland. There is uncertainty as to whether the pigment is synthesized in the shell gland or in other tissues. To investigate the site of pigment biosynthesis, the expression of heme oxygenase (decycling) 1 (HMOX1), a gene encoding HO, and HO activity in liver and spleen were compared between blue-shelled chickens (n=12) and brown-shelled chickens (n=12). There were no significant differences in HMOX1 expression and HO activity in these tissues between the two groups. Since the liver and spleen, two important sites outside the shell gland where heme is degraded into...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biliverdin; Blue egg; Chicken; HMOX1.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200020
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Consumer Interest in Environmentally Beneficial Chicken Feeds: Comparing High Available Phosphorus Corn and Other Varieties AgEcon
Pesek, John D., Jr.; Bernard, John C.; Gupta, Meeta.
One source of phosphorous pollution in areas of high chicken production is runoff from fields using fertilizer from these operations. A potential solution is to feed chicken high available phosphorus (HAP) corn, reducing phosphorus in manure. This study examined consumer purchase likelihood of chickens fed HAP, created traditionally or through genetic modification, and other genetically modified (GM) corn including Bt and Roundup-ready. Survey results from the Delmarva Peninsula found considerable interest in non-GM HAP corn, although GM HAP corn was not typically viewed as more acceptable than other GM varieties. Overall, the marketplace appears open to products geared toward environmental benefits.
Tipo: Journal Article Palavras-chave: Chicken; Conjoint analysis; Corn; Genetically modified; Heteroscedastic; Phosphorus pollution; Tobit; Environmental Economics and Policy; Q13; D12; C24.
Ano: 2011 URL: http://purl.umn.edu/117945
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CONSUMER KNOWLEDGE OF SELECTED NUTRIENT CONTENT OF NINE FRESH MEAT CUTS AgEcon
Reed, Debra; Gillespie, Jeffrey M.; Downer, Robert; Schupp, Alvin R..
The U.S. Department of Agriculture, the Food and Drug Administration, and the medical profession, among others, have attempted to broaden consumers' knowledge of the nutritive content of foods. Retailers provide information by supplying point-of-purchase nutrition information and/or nutrition labels on fresh meats. The availability of nutrition information on packaged fresh meats is relatively new. A survey of Louisiana households provided estimates of their knowledge of the fat, cholesterol, and protein content of selected combinations of fresh beef, pork, chicken, and turkey meats. Permutation analysis and tabular analyses were used to assess households' nutrition knowledge of the selected fresh meats.
Tipo: Journal Article Palavras-chave: Beef; Chicken; Consumer knowledge; Nutrient content; Permutation analysis; Pork; Turkey; Food Consumption/Nutrition/Food Safety.
Ano: 1999 URL: http://purl.umn.edu/14731
Registros recuperados: 119
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