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| Registros recuperados: 9.409 | |
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| Gonçalves,Danilo de Lima; Barelli,Marco Antonio Aparecido; Oliveira,Taniele Carvalho de; Santos,Paulo Ricardo Junges dos; Silva,Claudete Rosa da; Poletine,Juliana Parisotto; Neves,Leonarda Grillo. |
| ABSTRACT: The aim of the study was to determine genetic correlations of agronomic traits and to evaluate direct and indirect effects, through path analysis, between variables analyzed with grain yield. Forty accessions of common bean, cultivated at Caceres County were evaluated, by using randomized complete blocks design with three repetitions. Coefficient magnitudes of genotypic correlations were superior to phenotypic and environmental ones for most correlations, suggesting greater influence of genetic factor than environmental factors. In order to determine the importance of direct and indirect effects, path analysis was performed, which provided greater reliability in interpretations of cause and effect between studied traits, indicating that grain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agronomic traits; Correlation coefficient; Crop breeding; Phaseolus vulgaris L.; Grains yield.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800201 |
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| Romero-Bernal,Jose; Almaraz,Ernesto Morales; Ortega,Octavio Alonso Castelán; Salas,Nazario Pescador; González-Ronquillo,Manuel. |
| ABSTRACT: This study examined the characteristics of the fatty acids profile in the meat of lambs fed grazing and supplemented with different PUFA sources. Thirty Suffolk lambs were used (37.2±5.4kg BW), grazing on perennial ryegrass (Lolium perenne) (12h d-1) and supplemented (30g kg-1 BW0.75) with ryegrass hay (RGH), or supplements formulated with fishmeal (FHM) or soybean meal (SBM). Lambs were used in a completely randomized design. Results showed an effect on total SFA, with SBM higher than RGH (P=0.033), and SBM and FHM showing higher MUFA content compared with RGH (P=0.001). Total PUFA content was higher for RGH, followed by FHM and with the lowest content for SBM (P=0.001). Concluding that there is a variation in fatty acid content depending on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lambs; Grazing; Fatty acids; Meat; PUFA. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400655 |
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| Vieira,Vanessa Diniz; Correa,Franklin Riet; Vilela,Vinícius Longo Ribeiro; Medeiros,Márcia Alves de; Morais,Dayana Firmino de; Santos,Antonielson dos; Feitosa,Thaís Ferreira; Almeida Neto,João Leite de. |
| ABSTRACT: Seventeen outbreaks of dermatophilosis are reported from three farms affecting Santa Inês and Santa Inês x Dorper sheep that were reared in irrigated areas with rotational grazing at a stocking rate of 50 to 100 sheep per hectare, in the Brazilian semiarid region. Most outbreaks occurred after rains and affected sheep of different ages, with morbidity rates of 0.77% to 31%. Clinical signs were dermatitis with crusts that stood out easily and left areas of alopecia. Dermatophilus congolensis was isolated in cultures in 5% sheep blood agar by means of Haalstra’s method. Histologically, the epidermis showed extensive multifocal areas of ortho and parakeratotic hyperkeratosis with intracorneal microabscesses and presence of D. congolensis. Sheep... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dermatitis; Dermatophilus congolensis; Environment; High stocking rate; Management. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800457 |
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| Veiga,Milton da; Feldberg,Nelson Pires; Nava,Gilberto; Bettoni,Jean Carlos. |
| ABSTRACT: Cover crops may have direct or indirect effects on the physical and chemicalsoil attributes; these cropsplay a key role in the cycling of nutrients in the soil and add labile organic carbon, bringing economic and environmental benefits to the system. To study the effect of cover crops on the physical and chemical properties of an Oxisol, a three-year experiment was conducted in a commercial vineyard located at Epagri’s Experimental Station in Videira, SC, Brazil. Different winter species (white clover, red clover, common vetch, turnip, corn spurrey, black oat, rye, and ryegrass) were sown in addition to treatments with manual weeding or mechanical mowing. Certain chemical and physical attributes of soil were determined in samples collected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic matter; Nutrients; Bulk density; Soil porosity; Vitis spp. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200252 |
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| Novaes,Stefani Faro de; Schreiner,Lígia Lindner; Silva,Isabella Pereira e; Franco,Robson Maia. |
| ABSTRACT: Veterinary drugs are used in dairy cattle management mainly for therapy and prophylaxis of diseases, which chemicals may leave residues in milk. Human exposure and the unintentional consumption of residues of drugs can lead to side effects and development of resistant bacteria, representing a considerable concern to consumer health. This paper presents the occurrence of residues of veterinary drugs in milk from 2009 to 2011 in Brazil, monitored by the Official Program for Analysis of Residues of Veterinary Drugs in Foods of Animal Origin. A total of 961 samples were collected in the retail and evaluated for the main β-lactams, tetracyclines, amphenicol, aminoglycosides, quinolones, sulfonamides and avermectins. Residues of veterinary drugs did... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Maximum residue limit; Milk monitoring; Toxicological risk; Veterinary drugs. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800455 |
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| Gatiboni,Luciano Colpo; Vargas,Cristiane Ottes; Albuquerque,Jackson Adriano; Almeida,Jaime Antonio; Stahl,James; Chaves,Djalma Miller; Brunetto,Gustavo; Dall’Orsoletta,Daniel João; Rauber,Luiz Paulo. |
| ABSTRACT: Pinus cultivation without fertilization is a common practice in southern Brazil, which can induce a decline in the availability of phosphorus (P) in the soil. The purpose of this study was to evaluate the changes in phosphorus fractions in a Humic Cambisol subjected to continuous Pinus taeda L. cultivation without fertilization. Two forest stands were evaluated, after 16 years of Pinus cultivation (1st crop) and 49 years (3rd crop), when soil samples were collected (layers 0-10, 10-20, 20-40, 40-60, and 60-80cm) from six trenches per forest. In soil samples, the P contained in organic (Po) and inorganic (Pi) forms was determined by sequential chemical fractionation. Labile inorganic P fractions remained unchanged after the different cultivation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest rotations; Successive crops; Phosphorus fractionation; Labile phosphorus. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700302 |
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| Monteiro,Alessandra Nardina Trícia Rigo; Bertol,Teresinha Marisa; Kessler,Alexandre de Mello. |
| ABSTRACT: Optimizing nutrient efficiency is essential in order to increase sustainability of pig production systems, especially where the growing demand for food must be met at an affordable cost, without compromising environmental resources. To make this happen, it is necessary to develop efficient methods to accurately estimate the nutritional requirements of animals, as well as develop equipment and systems that allow for applying such expertise in the production system. Estimating the nutritional requirement of pigs through mathematical models, considering several factors that can impact the requirement, is a key factor to reduce the environmental load from pig production. Likewise, feed formulation and feeding programs, can help to achieve this. In... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet formulation; Environmental impact; Modelling; Nutritional requirement; Pig. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700653 |
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| Coimbra,Lívia Muritiba Pereira de Lima; Arruda,Hayanna Adlley Santos de; Machado,Erilane de Castro Lima; Salgado,Silvana Magalhães; Albuquerque,Sônia Sousa Melo Cavalcanti de; Andrade,Samara Alvachian Cardoso. |
| ABSTRACT: Sapodilla is an original fruit from Central America that is well adapted in all regions of the Brazilian territory. Despite its wide adaptation and acceptance in fruit markets, it is rare to find it outside tropical regions, partially because of its high perishability. The development of alternative, simple, and inexpensive methods to extend the conservation and marketing of these fruits is important, and osmotic dehydration is one of these methods. The main objective of this study was to determine the water and sucrose diffusion coefficients during the osmotic dehydration of sapodilla. This process was performed in short duration (up to 6h) to evaluate detailed information on water loss and solids gain kinetics at the beginning of the process... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Osmotic dehydration; Mass transfer; Diffusion coefficient; Sapodilla. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800204 |
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| Martins,Thiago Fernandes; Milanelo,Liliane; Krawczak,Felipe da Silva; Furuya,Haroldo Ryoiti; Fitorra,Lilian Sayuri; Dores,Fábio Toledo das; Pedro,Valéria da Silva; Hippolito,Alicia Giollo; Labruna,Marcelo Bahia. |
| ABSTRACT: The Wildlife Screening Center (CETAS) of the Tietê Ecological Park (PET), situated at the municipality of São Paulo, receives, treats and rehabilitates wild animals that have been dislodged from their natural environment due to different reasons. This study analyzed the ixodid fauna, and the rickettsial infection in these ticks, collected on wild animals received at the PET’s CETAS. During the period from March 2003 to November 2016, 936 ticks were collected from 96 wild animals (16 bird and 18 mammal species) that were sent to CETAS. The following 12 ixodid species were identified: Amblyomma aureolatum, Amblyomma brasiliense, Amblyomma calcaratum, Amblyomma dubitatum, Amblyomma longirostre, Amblyomma ovale, Amblyomma parkeri, Amblyomma sculptum,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amblyomma; Ixodes; Haemaphysalis; Rhipicephalus. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500502 |
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| Santos,Djavan Pinheiro; Schossler,Thiago Rodrigo; Santos,Isis Lima dos; Melo,Nathália Batista; Santos,Glenio Guimarães. |
| ABSTRACT: The aim of this study was to characterize the soil macrofauna under different crop systems and compare them to the macrofauna under the native vegetation of a Cerrado/Caatinga ecotone in southwestern Piauí State, Brazil. The areas studied included areas under sweetsop cultivation (Annona squamosa L.), andropogon grass with three years of use, andropogon grass with six years of use, pivot-irrigated corn, Napier grass, and native vegetation. In each area, soil layers of 0-0.1, 0.1-0.2, and 0.2-0.3m, including the surface litter, were evaluated following the Tropical Soil Biology and Fertility Program (TSBF) recommendations. The soil macrofauna from the different land-use systems were identified to the family level, and the mean density of each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicators; Napier grass; Irrigated crop; Soil invertebrates; Soil quality. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001000404 |
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| Rizzo,Huber; Silva,Tatiane Rodrigues da; Carvalho,Jeferson Silva; Marinho,Felipe Apolônio; Santos,Hilderley de Almeida; Silva Júnior,Wellington Santos; Alemán,Mario Augusto Reyes; Pinheiro Júnior,José Wilton; Castro,Vanessa. |
| ABSTRACT: The objective of this study was to determine the frequency and factors associated with the occurrence of seropositivity for Leptospira spp. in goat herds in the state of Sergipe, Brazil, on the basis of the analysis of 675 samples collected from 41 properties in 2013-2014. Analysis of anti-Leptospira spp. antibodies revealed that 25.74% goats (194) were seropositive and that 90.24% (37) of the properties had at least one infected goat. The most prevalent serogroup was Icterohaemorrhagiae (85.57%); although, the study animals were reactive to other serogroups: Australis (5.15%), Pomona (3.61%), Sejroe (3.09%), and Pyrogenes (2.58%) had titers ≤400 in 96.91% of cases. The origin of the water source [still water source (OR=3.86)] was associated with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water source; Leptospirosis; Serogroup; Icterohaemorrhagiae; Test microscopic agglutination test. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700452 |
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| Santos,Fabíola Brandão dos; Ramos,Maria Isabel Lima; Miyagusku,Luciana. |
| ABSTRACT: Microbial resistance is a serious public health problem, which has led to the search for alternative treatments to replace antibiotics, including studies to evaluate the antimicrobial potential of species in Brazil’s Cerrado. Therefore, the present study aimed to evaluate the antimicrobial activity of hydroalcoholic extracts of genipap, baru, and taruma against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans using disc diffusion tests and microdilution. Results indicated that all genipap extracts showed inhibition zones and minimum inhibitory concentrations (MICs) and minimum microbicidal concentrations (MMCs) ranging between 150μg/mL and 940μg/mL against all microorganisms tested. Baru pulp extracts... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado fruits; Antibiotics; Genipa americana; Dipteryx alata; Vitex cymosa. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800456 |
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| Lúcio,Alessandro Dal'Col; Benz,Vilson. |
| ABSTRACT: The productive variability in horticultural crops affects the planning and quality of the experiments, inflating the error and leading to wrong conclusions with low experimental accuracy and reliability. The objective of this study was to dimension the plot size and number of harvests that are necessary so that there is improvement in the accuracy of zucchini production. The production data used was the one from the uniformity trials where the basic units (BU) were identified with the number of crop row and were numbered according to the position inside the row. With the values of individual production, (fresh fruit biomass) different plots sizes were simulated by summing up the adjacent BUs in the crop rows and the two forms of harvesting... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita pepo; Uniformity trial; Multiple regression. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100202 |
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| Silveira,Fernanda Gomes da; Duarte,Darlene Ana Souza; Chaves,Lucas Monteiro; Silva,Fabyano Fonseca e; Filho,Ivan Carvalho; Duarte,Marcio de Souza; Lopes,Paulo Sávio; Guimarães,Simone Eliza Facioni. |
| ABSTRACT: The main application of genomic selection (GS) is the early identification of genetically superior animals for traits difficult-to-measure or lately evaluated, such as meat pH (measured after slaughter). Because the number of markers in GS is generally larger than the number of genotyped animals and these markers are highly correlated owing to linkage disequilibrium, statistical methods based on dimensionality reduction have been proposed. Among them, the partial least squares (PLS) technique stands out, because of its simplicity and high predictive accuracy. However, choosing the optimal number of components remains a relevant issue for PLS applications. Thus, we applied PLS (and principal component and traditional multiple regression)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: SNP; Genomic prediction; Meat quality. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100652 |
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| Nonaka,Carolina Kymie Vasques; Fonseca Junior,Antônio Augusto; Guedes,Estefânia Oliveira; D´Ambros,Régia Maria; Lima,Graciela Kunrath; Camargos,Marcelo Fernandes; Heinemann,Marcos Bryan. |
| ABSTRACT: Pseudorabies (PR) is a highly contagious viral disease of great animal health and economic importance in swine industry. The aim of this study was to evaluate different genomic regions, real-time PCR chemistries and equipment for the molecular diagnosis of PR. Eight primer pairs targeting four genes (gB, gC, gE, gD), three different qPCR chemistries (SybrGreen, hydrolysis probes and plexor) and two equipment (ABI7500, Rotorgene 3000) were evaluated. Oligonucleotides targeting gB using hydrolysis probes showed the best performance after evaluating efficiency (99%), the detection limit (10-1.5 TCID50 mL-1) and diagnostic sensitivity and; therefore, those primers were selected for performance verification factors such as repeatability,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Real time PCR; Pseudorabies; Diagnose. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300452 |
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| Registros recuperados: 9.409 | |
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