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| Registros recuperados: 205 | |
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| Cardinal,Kátia Maria; Andretta,Ines; Silva,Marcos Kipper da; Stefanello,Thais Bastos; Schroeder,Bruna; Ribeiro,Andréa Machado Leal. |
| ABSTRACT: This study was designed to simulate productive and economic losses due to the withdrawal of antibiotic growth promoters (AGP) from pig diets. Articles that compared diets with AGP (AGP+) or without AGP (AGP–) for pigs were collected from electronic databases and the performance results were entered in a database. A meta-analysis was performed following the sequence: graphical analysis, correlation, and variance-covariance. The performance results observed in the meta-analysis, feed cost, and AGP costs were used to build equations to estimate the economic effect of withdrawing AGP. The database comprised 81 scientific articles containing 103 experiments totalizing 42,923 pigs. Avilamycin (24.7 %) was the most frequent AGP in the database, followed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Addditive; Feed conversion; Feed cost; Productive cost; Swine. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000700401 |
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| Vieira Neto,José; Cantarelli,Vinícius de Souza; Fialho,Elias Tadeu; Zangeronimo,Márcio Gilberto; Amaral,Nikolas de Oliveira; Rodrigues,Paulo Borges. |
| The objective of this study was to evaluate different textures and storage forms of corn in piglet diets. Two experiments were conducted, one of which tested digestibility of nutrients and the other diet performance. In the digestibility trial, 24 crossbred (Landrace X Large White) barrows with an initial weight of 18.7 ± 1.5 kg were used. They were kept in metabolic cages in a randomized block design using the factorial arrangement 2 X 2 (type of corn - dent and flint X type of storage - moist grain silage and dry grain) and six replicates, with one animal as the experimental unit. The values of metabolizable energy (ME) obtained were 3841 kcal of ME/kg of dry matter (DM) from dry corn, 3912 kcal of ME/kg of DM from moist corn, 4022 kcal of DM from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility; Ensilage; Nursery phase; Nutrition; Performance; Swine. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000900017 |
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| Carellos,Douglas de Carvalho; Lima,José Augusto de Freitas; Fialho,Elias Tadeu; Freitas,Rilke Tadeu Fonseca de; Silva,Hunaldo Oliveira; Branco,Patrícia Azevedo Castelo; Souza,Zuleide Alves de; Vieira Neto,José. |
| With the objective to evaluate the influence of increasing levels of inclusion of sunflower meal (SFM) solvent extraction (DM: 92.71%, CP: 27.50%, NDF: 43.57%, ADF: 32.96%, CF: 25.91%, EE: 3,08% and GE: 4390 kcal) on the performance and carcass characteristics of finishing swine, a performance trial was conducted in the Department of Animal Science of the Federal University of Lavras - MG. A total of 80 crossbred pigs (LD x LW) with initial weight of 62.20 ± 4.21 kg were utilized, one barrow and one gilt per experimental unit, allocated in a randomized block design. The treatments were represented by five diets with increasing levels of inclusion (0, 4, 8, 12 and 16%) of SFM. At the end of the experimental period, all pigs were slaughtered (99.80 ± 6.91kg)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swine; Sunflower meal; Performance; Carcass. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542005000100026 |
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| Silveira,Hebert; Melo,Antonio Diego Brandão; Bortoluzzi,Cristiano; Costa,Leandro Batista; Rostagno,Marcos Horácio; Schinckel,Allan Paul; Garbossa,Cesar Augusto Pospissil; Cantarelli,Vinícius de Souza. |
| ABSTRACT The intestinal gene expression of RelA/p65 (NF-κB), insulin growth factor 1 (IGF-1), glucose transporter 2 (GLUT2), and Na+/dependent glucose transporter 1 (SGLT1) were evaluated in response to benzoic acid, yeast culture, L-glutamine, and oregano essential oil, using an ex vivo model. Six piglets weighing approximately 20 kg each were sacrificed, and their jejunum was collected and segmented into five 2-cm explants. Each explant was immersed in cell culture medium according to one of the following treatments: control (without additive), 0.5% benzoic acid, 1% yeast culture, 1% L-glutamine, and 0.015% oregano oil. Gene expression was evaluated using RT-PCR. Yeast culture up-regulated the gene expression of RelA/p65, IGF-1, GLUT2, and SGLT1 in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemosensors; Glucose; Piglet; RT-PCR; Swine; Trophic effects. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100414 |
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| Tagliaro,Cláudia Helena; Franco,Maria Helena Lartigau Pereira; Weimer,Tania Azevedo. |
| The data of three protein polymorphisms were used to investigate the genetic relationships among the Landrace, Large White and Duroc swine breeds reared in Brazil, 12 other populations of these same breeds from various countries and a population of Belgium Landrace. The dendrogram, constructed from matrix of genetic distance coefficients, disclosed three large groups clustered by breed. Among them, the Landrace and the Large White showed in average closer resemblance (D= 0.203) than between them and Duroc (D= 0.241). It the three breeds, the smallest genetic distances were found between Brazilian and Cuban pig populations (Landrace: D = 0.060; Large White: D = 0.052; Duroc: D = 0.065), although there were not reports of pig exchanges between these two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swine; Protein polymorphisms; Genetic relationships. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781997000300021 |
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| Guimarães,Flávio R.; Saddi,Thelma M.; Vitral,Cláudia Lamarca; Pinto,Marcelo A.; Gaspar,Ana Maria C.; Souto,Francisco José D.. |
| There is no information about evidence of hepatitis E virus (HEV) infection in swines in Central Brazil. In order to assess if HEV circulates in swines of the State of Mato Grosso, Central Brazil, a seroprevalence study was conducted including pigs from 17 farms, corresponding to 13 counties. The animals were randomly chosen among pigs arriving to two slaughterhouses between December 2002 and February 2003. Serum samples were collected and tested for IgG antibodies against HEV (anti-HEV) by enzyme immunoassay (EIA). This EIA uses two HEV recombinant proteins as antigens, a mosaic protein (MP-II) and a protein containing region 452-617 of the ORF2 of the HEV Burma strain as coating antigens. 211 out of 260 pigs (81.2%; 95CI = 75.7%, 85.6%) were anti-HEV... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis E virus antibodies; Swine; Mato Grosso State. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000300004 |
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| Zangeronimo,Márcio Gilberto; Cantarelli,Vinícius de Souza; Fialho,Elias Tadeu; Amaral,Níkolas de Oliveira; Silveira,Hebert; Pereira,Leandro de Melo; Pereira,Luciano José. |
| The objective of this work was to evaluate the use of vegetable extract based addictives associated or not to symbiotics as an alternative for antibiotic as growth promoters for piglets at initial phase. It was used 125 pigs of commercial genetic line with initial weight of 7.4 ± 1.1 kg, weaned at 20 days of age, during 50 days. The experimental design used was randomized blocks (initial weight), with five treatments and five replicates with five animals per experimental unit. The experimental diets were a basal diet, without additive, and other four diets, one diet containing antibiotic (colistin + zinc oxide); diet with 0.3% of a symbiotic mixture; diet with 0.3% of a symbiotic mixture plus 0.05% of herbal mix (plant extracts and microencapsulated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth promoters; Performance; Prebiotic; Probiotic; Swine. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500016 |
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| Tonsor, Glynn T.; Featherstone, Allen M.. |
| This research evaluates the efficiency of swine firms differing by specialization type and employed technologies. Measures of technical, allocative, scale, economic, and overall efficiency are separately and jointly estimated for farrow-to-finish, farrow-to-feeder, feeder-to-finish, farrow-to-weanling, weanling-to-feeder, and mixed operations. Findings confirm appreciable differences in efficiency and causes of efficiency. Results suggest that overall efficiency of farrow-to-finish and farrow-to-weanling operations is on average lower than farrow-to-feeder, feeder-to-finish, and weanling-to-feeder operations. In addition, Tobit models examining how demographic factors, farm type, and input expenses influence efficiency indicate additional variation across... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Efficiency; Heteroskedastic Tobit; Firm specialization; Future anticipation; Producer heterogeneity; Production technology; Returns to scale; Swine; Livestock Production/Industries. |
| Ano: 2006 |
URL: http://purl.umn.edu/35379 |
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| Afonso,Esther Ramalho; Nacimento,Rafael Araujo; Palhares,Julio Cesar Pascale; Gameiro,Augusto Hauber. |
| ABSTRACT The objective with this study was to evaluate the impact of different swine nutritional strategies and technologies, as well as the land spread system, on logistical costs of pig manure distribution. For this, pigs were fed a conventional diet (C0) or a diet supplemented with 0.01% phytase (C1); organic minerals (40% substitution; C2); synthetic amino acids at reduced dietary crude protein levels (C3); or a combination of the three strategies (C4). All pig manure was weighed, then its chemical composition was determined. The mineral values and volume of manure produced were extrapolated to corresponding pig farm sizes in Sao Paulo state (300, 650, and 1000 sows) from real pig manure levels to produce simulations. To determine the logistical cost... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enzyme; Organic mineral; Swine; Waste. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100100 |
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| Percedo,María Irian; Alfonso,P; Frías,María Teresa; Díaz de Arce,Heydi; Barrera,Maritza; Fonseca,O; Castell,Sara. |
| Vaccination against classical swine fever (CSF) is an essential measure for its control in endemic areas, and the Chinese Strain has been used with success in already disease free countries. Nevertheless the complexity of the factors interacting on the epidemiology and control of CSF, when the expected success is not reached with the vaccination of premises, doubts always fall on the vaccine used and the vaccination scheme applied In consecuences, many changes in vaccination scheme by the breeders are frecuently observed whitout positive influence in CSF control. To clarify the CSF recurrence in a herd vaccinated by a different scheme as the one recommended in the national control program, serological samples were taken to different animal groups in three... |
| Tipo: Journal article |
Palavras-chave: Classical swine fever; Antibodies; Vaccination; Swine; Serology; Focus. |
| Ano: 2009 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2009000300004 |
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| Barbosa,L.; Lopes,P.S.; Regazzi,A.J.; Guimarães,S.E.F.; Torres,R.A.. |
| Using principal component analysis, records of 435 animals from an F2 swine population were used to identity independent and informative variables of economically important performance. The following performance traits were recorded: litter size at birth (BL), litter size at weaning (WL), teat number (TN), birth weight (BW), weight at 21 (W21), 42 (W42), 63 (W63) and 77 (W77) days of age, average daily gain (ADG), feed intake (FI) and feed:gain ratio (FGR) from 77 to 105 days of age. Six principal components expressed variation lower than 0.7 (eigen values lower than 0.7) suggesting that six variables could be discarded with little information loss. The discarded variables present significant simple linear correlation with the retained variables. Retaining... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swine; Multivariate analysis; Correlation; Discard; Growth; Litter size; Performance. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600016 |
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| Zotti,Everson; Resmini,Fábio Arnhold; Schutz,Luis Gustavo; Volz,Nilson; Milani,Raul Pelissari; Bridi,Ana Maria; Alfieri,Amauri Alcindo; Silva,Caio Abércio da. |
| ABSTRACT A total of 5502 piglets from 435 sows were selected for evaluation of the effect of piglet birthweight and sow parity on mortality rate (MR), growth performance, and carcass traits in pigs. Piglets were distributed into one of eight categories according to their weight (<600, 601-800, 801-1000, 1001-1200, 1201-1400, 1401-1600, 1601-1800, and >1801 g) and sows were classified according to parity (1-5). The maximum MR during lactation (day 0 to day 21) was found in category <600 g, whereas the lowest was observed in categories ≥1401 g. Pigs with greater body weight (BW) at birth were equivalently greater until 59 days of age. Average daily weight gain (ADG) was improved by increasing piglet birthweight between 0 and 21 days as indicated by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass quality; Growth curve; Maternal effect; Pig production; Swine. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017001100856 |
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| Rabelo,S.S.; Faria,B.G.; Rocha,L.G.P.; Pereira,B.A.; Chaves,B.R.; Pontelo,T.P.; Pereira,L.J.; Zangeronimo,M.G.. |
| RESUMO O objetivo do presente estudo foi investigar a ocorrência da síndrome do segundo parto em uma granja comercial de suínos e apresentar alternativas para minimizar esse problema reprodutivo. Os dados foram obtidos de 363 fêmeas de genética comercial (DB-30) de primeiro e segundo partos, entre os anos de 2010 e 2011. Os animais pertenciam a uma granja comercial de ciclo completo com 1200 matrizes, cujos índices zootécnicos não permitiam detectar a presença da síndrome do segundo parto. O período de lactação foi de 24,6±3,3 dias. Foram analisados o número de nascidos totais e nascidos vivos, o peso da leitegada ao nascimento, o número de desmamados e o peso ao desmame do lote e também individualmente de cada marrã ao longo do ano. As médias e o... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Swine; Reproductive rates; Gilts; Primiparous. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000401085 |
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| Registros recuperados: 205 | |
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