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Search Results: 1 - 10 of 8604 matches for " Alfredo Sampaio Carrijo "
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Detection of “Salmonella” spp. in broiler buildings and stuff of slaughterhouse in the central region of Mato Grosso do Sul Ocorrência de "Salmonella" spp. em aviários e abatedouro de frangos de corte na regi o central de Mato Grosso do Sul
Helena Fumy Koguishi Boni,Alfredo Sampaio Carrijo,Vitor Barbosa Fascina
Revista Brasileira de Saúde e Produ??o Animal , 2011,
Abstract: The aim of this study was to search Salmonella spp. occurrence in broiler poultry shed and poultry products from slaughterhouse in central county of Mato Grosso do Sul. Were analyzed 134 drag swabs in broiler poultry farms located in five counties 123 samples of chickens carcasses, viscera and chilled water from the slaughterhouse. The results showed that 11.28% of 257 samples tested positive for Salmonella, and 1.95% from the field and 9.33% from the slaughterhouse. The serovars found were Salmonella Enteritidis (1.16%), S. Typhimurium (1.94%), S. Senftenberg (0.77%), S. Schwarzengrund (4.28%), S. Livingstone (0.38%), S. Corvallis (1.55%) and Salmonella enterica subspecies enterica (O: 4.5:-:1.2) with 1.16%. The use of two enrichment broths and two or more plating means increases the chances of Salmonella spp. Isolation. The serovars Enteritidis and Typhimurium, important in the poultry industry, were found in field and slaughterhouse. It can be concluded that there is an occurrence of different serovars of Salmonella spp. In poultry slaughterhouse and in Mato Grosso do Sul central county. Serovar Schwarzengrum shows the highest percentage of occurrence in the slaughterhouse, suggesting that further studies are conducted to determine the importance of presence compared to other serovars. Control programs and risk analysis are essential for maintaining the health of poultry and reduce potential health risks to the consumer. Objetivou-se com este estudo pesquisar a ocorrência de Salmonella spp. em aviários de frangos de corte e em produtos de abatedouro avícola na regi o central de Mato Grosso do Sul. Foram analisados 134 suabes de arraste em aviários de frangos de corte localizados em cinco municípios e 123 amostras de carca as de frango, vísceras e água do chiller provenientes do abatedouro. Os resultados demonstraram que 11,28% das 257 amostras apresentaram resultados positivos para Salmonella, dos quais 1,95% provenientes do campo e 9,33% do abatedouro. Os sorovares encontrados foram: S. Enteritidis (1,16%), S. Typhimurium (1,94%), S. Senftenberg (0,77%), S. Schwarzengrund (4,28%), S. Livingstone (0,38%), S. Corvallis (1,55%) e Salmonella enterica subspécie enterica (O:4,5:-:1,2) com 1,16%. A utiliza o de dois caldos de enriquecimento e de dois ou mais meios de plaqueamento aumenta as chances de isolamento de Salmonella spp. Os sorovares Enteriditis e Typhimurium, importantes na indústria avícola, foram encontrados no campo e no abatedouro. Pode-se concluir que há ocorrência de diferentes sorovares de Salmonella spp. nos aviários e no abatedouro da
Modelo teórico e experimental da reciclagem do Carbono-13 em tecidos de mamíferos e aves
Ducatti, Carlos;Carrijo, Alfredo Sampaio;Pezzato, Ant?nio Celso;Mancera, Paulo Fernando de Arruda;
Scientia Agricola , 2002, DOI: 10.1590/S0103-90162002000100003
Abstract: food source differences of about 14? from plants with carbon-3 (c3) and carbon-4 (c4) photosynthetic cycles and their derived products make carbon metabolism studies possible in birds and small mammals. the authors suggest a theorical and experimental model for determining the relative enrichment results, delta per thousand (d?) of the 13c/12c ratio as a function of time for different tissues. the following equation was used: y(t) = (y0 ? q/k) e-kt + q/k where, y(t) is the isotopic concentration at time t, y0 is the initial isotopic concentration in the tissue, k is the turnover constant expressed in 1/time, and q is the input of metabolites which contain carbon expressed in d?/time. the equation below was obtained from the analysis of hen livers, the carbon-4 photosynthetic cycle ration of which was switched to a carbon-3 diet: d13c = -24.74? + 12.37? e-0.237(nt) with 2.9 day half-life. the carbon switching steady-state was reached at ?24.48? so that nearly 98.4% of the c4 isotopic content in the liver was replaced by c3 after 5.6 half-lives. the proposed model is suitable to determine the partial or entire turnover of carbon concentration in some selected tissues.
Cassava root meal levels in diets for free-range female broiler chickens Níveis de farelo da raiz integral de mandioca em dietas para fêmeas de frangos caipiras
Alfredo Sampaio Carrijo,Vitor Barbosa Fascina,Karina Márcia Ribeiro de Souza,Simone da Silva Ribeiro
Revista Brasileira de Saúde e Produ??o Animal , 2010,
Abstract: The objective of this research was to evaluate the performance, carcass yield and cuts of free range female broiler chickens submitted to diets containing cassava root meal (CRM). We used 400 naked neck chicks female at one day-old line ISA S575-N, distributed in a completely randomized design with four treatments and four replicates of 25 birds. The treatments consisted of the inclusion of 0, 15, 30 and 45% of CRM in diet. The performance of the birds was evaluated in periods 1 to 28, 1 to 56 days and 1 to 84 days of age and carcass yield and cuts to 85 days of age. There was no difference during the evaluated periods. For the variables of yield, there was a difference in yield back (YB) and percentage of abdominal fat (AF), decrease linear with the increase of CRM (YB = 20.92859 – 0.01636x, r2 = 0.35, AF = 2.73339 – 0.02779x, r2 = 0.49). The CRM can be used in free range broiler chickens diets to 45%, without impairing yields performance of carcass and cuts. Foram avaliados o desempenho, rendimento de carca a e os cortes de fêmeas de frangos de corte tipo caipira, submetidos a dietas à base de farelo da raiz integral de mandioca (FRIM). Foram utilizados 400 pintos fêmeas de pesco o pelado com um dia de idade, da linhagem ISA S575-N, distribuídos em delineamento inteiramente casualizado, com quatro tratamentos e quatro repeti es de 25 aves. Os tratamentos consistiram na inclus o de 0, 15, 30 e 45% de FRIM na dieta. O desempenho das aves foi avaliado nos períodos de 1 a 28, 1 a 56 e 1 a 84 dias de idade, e o rendimento de carca a e de cortes aos 85 dias de idade. N o houve diferen as nas variáveis de desempenho analisadas, durante as fases de cria o das aves. Para as variáveis de rendimento, houve diferen a, para rendimento de dorso (RD) e percentual de gordura abdominal (GA), e diminui o de forma linear com o aumento de FRIM (RD = 20,92859 – 0,01636x, r2 = 0,35; GA = 2,73339 – 0,02779x, r2 = 0,49). O FRIM pode ser utilizado em dietas para frangos de corte tipo caipira em até 45% de inclus o, sem prejuízo do desempenho dos rendimentos de carca a e de cortes.
Modelo teórico e experimental da reciclagem do Carbono-13 em tecidos de mamíferos e aves
Ducatti Carlos,Carrijo Alfredo Sampaio,Pezzato Ant?nio Celso,Mancera Paulo Fernando de Arruda
Scientia Agricola , 2002,
Abstract: A diferen a entre fontes alimentares da ordem de 14?, originárias de plantas com ciclos fotossintéticos Carbono-3 (C3) e Carbono-4 (C4) e seus subprodutos, abre novas perspectivas para o estudo do metabolismo do carbono em aves e animais de pequeno porte. Os autores prop em um modelo teórico e experimental capaz de exprimir os resultados de enriquecimento relativo, delta per mil (delta?) da raz o 13C/12C versus tempo em diferentes tecidos. Utilizou-se a equa o y(t) = (y0 -- q/k) e-kt + q/k onde, y(t) é a concentra o isotópica no tempo desejado, y0 a concentra o isotópica inicial existente no tecido, k é uma constante de troca isotópica com unidade 1/tempo, t é unidade de tempo e q é a taxa de entrada de metabólitos que contém carbono, com valores de delta?/tempo. Para fígado de galinhas que tiveram a ra o de ciclo fotossintético C4 substituída por dieta C3 obteve-se a equa o delta13C = -24,74? + 12,37? e-0.237(nT), com meia-vida (T) de 2,9 dias. O patamar de equilíbrio de substitui o do carbono foi alcan ado em --24,48?, de modo que praticamente 98,4% do conteúdo isotópico do C4 no fígado foi substituído por C3 após 5,6 meias-vidas. O modelo foi adequado para determinar o tempo de reciclagem total ou parcial da concentra o de carbono nos tecidos em estudo.
Métodos alternativos de restri??o alimentar na muda for?ada de poedeiras comerciais
Souza, Karina Márcia Ribeiro de;Carrijo, Alfredo Sampaio;Allaman, Ivan Bezerra;Fascina, Vitor Barbosa;Mauad, Juliana Rosa Carrijo;Suzuki, Francisco Manabu;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000200019
Abstract: alternative methods were assessed of qualitative feed restriction compared to the conventional forced molt technique. four hundred and eighty babcock hens were used distributed in three levels of feed restriction (100, 75 and 50%) and three body weight reduction percentages (15, 20 and 25%), with five replications of 32 hens. when the birds reached the body weight reduction percentage the packed cell volume, percentages of ovary, oviduct, gizzard, intestine, abdominal fat and oviduct length were determined. starting on day 28 and during five 28-day periods the quantitative and qualitative characteristics of production after forced molt were measured. the largest restriction period occurred at 50% of restriction that resulted in the smallest percentages of abdominal fat (0.66%), ovary (0.60%), oviduct (0.77%) and oviduct length (32 cm). the egg production percentage was higher in the first period, for the 75 and 100% restriction methods with up to 15 and 20% body weight reduction, respectively. however, for the birds with 50% restriction and 25% body weight reduction, the highest productions (86.80 and 83.20%) occurred in the 4th and 5th periods. qualitative feed restriction at 50% of the diet with feed and rice hulls, because it was less aggressive, resulted in better welfare conditions and facilitated farm management.
Multivariate analysis of stable isotope data in the traceability process for birds
Sartori, Maria Márcia Pereira;Denadai, Juliana Célia;Gracia, Amélia Maria Lima;Carrijo, Alfredo Sampaio;Ducatti, Carlos;
Acta Scientiarum. Animal Sciences , 2012, DOI: 10.4025/actascianimsci.v34i4.13434
Abstract: isotope analysis has proved to be an extremely important tool in the traceability process; however, statistical analyses of the results show discrepancies, as the data depend on and originate from several chemical elements such as carbon, hydrogen, oxygen, nitrogen and sulfur (chons). in order to establish the proper analysis of traceability data for birds using the stable isotope technique and evaluate the need for a combined analysis of the variables, data for carbon-13 and nitrogen-15 were used from eggs (albumen + yolk) of laying hens and the pectoral muscle of broilers, which were subjected to univariate statistical analysis (anova and complemented with tukey's test) and multivariate statistical analysis (manova and discriminant analysis). the data were analyzed using minitab 16 software, and the results, corroborated in the theory, confirm the need for multivariate analysis, showing also that discriminant analysis clarifies questions from the results of the other analysis methods compared in this study.
Níveis de ractopamina para suínos machos castrados em termina??o e mantidos sob conforto térmico
Sanches, Josilene Figueiredo;Kiefer, Charles;Moura, Mariana Souza de;Silva, Camilla Mendon?a;Luz, Mohammed Freitas da;Carrijo, Alfredo Sampaio;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782009005000257
Abstract: the objective of this study was to evaluate the performance and the quantitative characteristics of barrow's carcass maintained under thermoneutral environment and fed with diets containing different ractopamine levels. forty-eight barrows were used, with initial weight of 67.0±2.7kg, distributed in a randomized blocks design with four ractopamine levels (0, 5, 10 and 20ppm) and six replicates with two animals each. the experimental period lasted 28 days. the average temperature recorded was 20.9±2.9°c, relative humidity was 86.7±7.3% and bghi was 69.6±4.0. the final weight of the animals and feed intake were not influenced (p>0.05) by treatments. the ractopamine levels influenced (p<0.05) the daily weight gain and feed conversion. there was a linear reduction (p<0.05) of backfat thickness, increase of muscle depth and the carcass lean meat percentage in accordance with the increasing of ractopamine levels in the diet. the weight, carcass yield and loin eye area were not influenced (p>0.05) by treatments. it was concluded that the ractopamine optimal level of inclusion in the diet of barrows kept under thermoneutral environment is 20ppm.
Níveis de ractopamina para suínos machos castrados em termina??o mantidos sob estresse por calor
Sanches, Josilene Figueiredo;Kiefer, Charles;Carrijo, Alfredo Sampaio;Moura, Mariana Souza de;Silva, Elizangela Alves da;Santos, Alexandre Pereira dos;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000700019
Abstract: the objective of this study was to evaluate performance, quantitative characteristics of carcass, and visceral responses of barrows maintained on heat stress enviroment and fed diets supplemented with ractopamine. it was used 48 animals with initial weight of 67.3 ± 3.8 kg, distributed in a randomized block design with four levels of ractopamine (0, 5, 10 and 20 mg/kg), each one with six replicates with two animals each. the experimental period lasted 28 days. air temperature was 31.8 ± 2.0oc, air humidity was 72.6 ± 10.2% and bghi was 82.7 ± 2.8. daily feed intake was not affect by the levels of ractopamine but they improved feed conversion and increased daily weight gain and final weight of the animals. the carcass quantitative characteristics were not affected by levels of ractopamine. the weights of the liver and kidneys showed linear increases accordingly to increase of ractopamine levels in the diet whereas weight of other organs and length of small intestine were not affected by supplementation with ractopamine. the optimum level of ractopamine for the best performance of barrows under heat stress is 20 mg/kg and it does not affect the quantitative characteristics of carcass.
Silagem de gr?os úmidos de milho na alimenta??o de frangos de corte
Sartori, José Roberto;Costa, Ciniro;Pezzato, Antonio Celso;Martins, Cyntia Ludovico;Carrijo, Alfredo Sampaio;Cruz, Valquíria Ca??o da;Pinheiro, Daniela Felipe;
Pesquisa Agropecuária Brasileira , 2002, DOI: 10.1590/S0100-204X2002000700015
Abstract: the objective of this work was to evaluate the high moisture corn silage (hmcs) as ingredient in broiler chicken diets, in total substitution to dried corn (dc) on performance, carcass yield, organ weights and intestinal morphology. in the first trial, 600 one-day-old male chicks ross were distributed in randomized blocks, with six treatments (a: dc of 1-42 days; b: hmcs of 1-42 days; c: hmcs of 1-7 days and dc of 8-42 days; d: hmcs of 1-14 days and dc of 15-42 days; e: hmcs of 1-21 days and dc of 22-42 days; f: dc + water of 1-42 days), with four replications of 25 poultry each. in the second trial, 24 male chicks ross were utilized, distributed randomized in two treatments (with and without hmcs) and twelve replications each. the hmcs up to the age of 21 days did not interfere in the poultry performance and in the carcass yield at the age of 42 days. broilers fed with hmcs presented higher relative weight of the liver, lower width of duodenum and ileum villus, higher height of the jejunum villus at 21 and lower depth of crypt in the duodenum and ileum at the age of 42 days. the hmcs can be considered an ingredient of broiler chicken diets up to the age of 21 days, for not interfering on the poultry final weight, on carcass yield and organ weights.
Níveis de treonina digestível em dietas para fêmeas suínas de alto potencial genético em lacta??o sob condi??es de alta temperatura ambiente
Kiefer, Charles;Ferreira, Aloízio Soares;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Carrijo, Alfredo Sampaio;Silva, Francisco Carlos de Oliveira;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000600015
Abstract: fifty and two lactating sows were allotted to a randomized complete blocks experimental design with four digestible threonine levels (0.64; 0.67; 0.70 and 0.73%) and 13 replications, and each experimental unit was consisted by a female. the temperature inside in the room was of 29.7 ± 2.5°c. there was no effect of digestible threonine levels in the diet on the weight of the sows at weaning. the total and percentage sow weight losses linearly reduced with the increase of digestible threonine level in the diet during the lactation period. digestible threonine level in the diets influenced fat thickness (ft) at weaning, and affected the total and percentage variation of ft. the compositions of fat and corporal protein at weaning were not influenced by digestible threonine levels in the diet. a linear reduction for total and percentage of corporal fat mobilizations was observed as digestible threonine levels increased in the diet. the mobilization of corporal protein, milk production and the interval weaning time-estrus were not influenced by digestible threonine levels in the diet. digestible threonine leveld in the diet had no effect on intake of diet, of lysine and of digestible energy. however, a linear increase was observed for the intake of digestible threonine as the levels of it increased in the diet. digestible threonine levels in the diet had not influenced the energy efficiency of the females, the performance of the piglets and the litters. high-producing lactating sows under high temperature environmental conditions require 0.73% of digestible threonine, corresponding to a daily intake of 32.5g and the digestible threonine:digestible lysine ratio of 73%.
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