Navegação Ciências Agrárias por Título

Resultados 3875-3894 de 3899

    • Virulence genes and antimicrobial resistance of Pasteurella multocida isolated from poultry and swine 

      Furian, Thales Quedi; Borges, Karen Apellanis; Laviniki, Vanessa; Rocha, Silvio Luis da Silveira; Almeida, Camila Neves de; Nascimento, Vladimir Pinheiro do; Salle, Carlos Tadeu Pippi; Moraes, Hamilton Luiz de Souza (2016) [Artigo de periódico]
      Pasteurella multocida causes atrophic rhinitis in swine and fowl cholera in birds, and is a sec-ondary agent in respiratory syndromes. Pathogenesis and virulence factors involved are stillpoorly understood. The aim of this ...

    • Virulence profiles of enterotoxigenic Escherichia coli isolated from piglets with post-weaning diarrhea and classification according to fecal consistency 

      Sato, José Paulo Hiroji; Takeuti, Karine Ludwig; Andrade, Mariana Roque de; Koerich, Priscilla Karina Vitor; Tagliari, Vinícius Z.; Bernardi, Mari Lourdes; Cardoso, Marisa Ribeiro de Itapema; Barcellos, David Emilio Santos Neves de (2016) [Artigo de periódico]
      The aim of this study was to assess the frequency and association of virulence factors of Escherichia (E.) coli isolated from weaned piglets with diarrhea and to correlate it with fecal consistency. A total of 152 rectal ...

    • Virulência, atividade enzimática e padrões de isoesterases de isolados de Pyrenophora chaetomioides, agente etiológico da mancha de grãos e folhas de aveia 

      Bocchese, Carla Azambuja Centeno; Martinelli, Jose Antonio; Matsumura, Aida Terezinha Santos; Federizzi, Luiz Carlos; Prestes, Ariano Moraes (2003) [Artigo de periódico]
      A complexidade da população de Pyrenophora chaetomioides, principal agente causal da mancha da folha e do grão de aveia (Avena sativa) no Sul do Brasil, é pouco conhecida. Deste modo, estudos envolvendo a variabilidade da ...

    • Virulência e formação de biofilme microbiano por Enterococcus faecalis isolados de swabs cloacais de frangos de corte infectados com Eimeria spp. 

      Cassenego, Ana Paula Vaz; Ellwanger, Juliana; D'Azevedo, Pedro Alves; Ribeiro, Andrea Machado Leal; Frazzon, Jeverson; Frazzon, Ana Paula Guedes (2013) [Artigo de periódico]
      A dinâmica da microbiota no trato gastrointestinal (TG) de animais pode ser afetada por patógenos, tais como Eimeria spp. Os enterococos são bactérias saprófitas que colonizam o TG de mamíferos e aves. A influência sobre ...

    • Uma visão sobre qualidade do solo 

      Vezzani, Fabiane Machado; Mielniczuk, Joao (2009) [Artigo de periódico]
      No início da década de1990, a comunidade científica, consciente da importância do solo para a qualidade ambiental e para a sustentabilidade agrícola, iniciou a abordagem sobre Qualidade do Solo (QS). Este trabalho teve o ...

    • Visceral metabolism and efficiency of energy use by ruminants 

      Kozloski, Gilberto Vilmar; Rocha, Joao Batista Teixeira da; Ciocca, Maria de Lourdes Santorio (2001) [Artigo de periódico]
      O sistema visceral (fígado e vísceras drenadas pela veia porta) representa uma interface entre a dieta e o animal e atua como o principal local de regulação dos nutrientes utilizados para a manutenção, crescimento, lactação, ...

    • Vitrificação de oócitos e embriões bovinos produzidos in vitro e expostos à citocalasina B 

      Mezzalira, Alceu; Vieira, Arnaldo Diniz; Barbieri, Dilmar Paulo; Machado, Mariana Fernandes; Thaler Neto, André; Bernardi, Mari Lourdes; Silva, Carlos Antonio Mondino; Rubin, Mara Iolanda Batistella (2002) [Artigo de periódico]
      Foi avaliada a influência da citocalasina B na vitrificação de oócitos e embriões bovinos produzidos in vitro. No Experimento I, 956 oócitos foram maturados por 22h, sendo imediatamente vitrificados (tratamento Vitri) ou ...

    • Volatile profile of sparkling wines produced with the addition of mannoproteins or lees before second fermentation performed with free and immobilized yeasts 

      Costa, Gustavo Pires; Nicolli, Karine Primieri; Welke, Juliane Elisa; Manfroi, Vitor; Zini, Claudia Alcaraz (2018) [Artigo de periódico]
      Heat map and hierarchical cluster analysis showed that sparkling wines produced with immobilized yeasts contained mostly higher levels of compounds that impart positive notes to wines. Fisher ratio pointed out nine volatile ...

    • Volatilização de amônia da ureia alterada por sistemas de preparo de solo e plantas de cobertura invernais no Centro-Sul do Paraná 

      Rojas, Carlos Andrés Leguizamón; Bayer, Cimelio; Fontoura, Sandra Mara Vieira; Weber, Mirla Andrade; Vieiro, Fernando (2012) [Artigo de periódico]
      O sistema plantio direto (PD) intensifica as perdas de N da ureia por volatilização, em comparação ao preparo convencional (PC). O objetivo deste estudo foi avaliar a magnitude desse efeito nas condições de temperatura ...

    • Water disappearance dynamics in growing-finishing pig production 

      Chimainski, Michael; Ceron, Marcos Speroni; Kuhn, Micheli Faccin; Muniz, Henrique da Costa Mendes; Rocha, Leonardo Tombesi da; Pacheco, Paulo Santana; Kessler, Alexandre de Mello; Oliveira, Vladimir de (2019) [Artigo de periódico]
      The objective of this study was to measure the water disappearance in the drinker and the pattern of daily water intake and estimate the amount of water wasted in pig production. The study will also generate information ...

    • Water erosion under simulated rainfall in different soil management systems during soybean growth 

      Engel, Fernando Luis; Bertol, Ildegardis; Mafra, Álvaro Luiz; Cogo, Neroli Pedro (2007) [Artigo de periódico]
      O manejo do solo influencia a cobertura superficial pelo resíduo cultural e, juntamente com a cobertura do solo pela copa das plantas, afeta a erosao hídrica. O objetivo do estudo foi quantificar as perdas de água e solo ...

    • Water saturation stress in Mimosa scabrella seedlings 

      Avrella, Eduarda Demari; Weber, João Miguel; Fior, Claudimar Sidnei (2019) [Artigo de periódico]
      The stress caused by water saturation has negative consequences for plants. The search for species tolerant to flooded soils can make feasible the use of areas with these characteristics. The objective of this study was ...

    • Weed genomics : yielding insights into the genetics of weedy traits for crop improvement 

      Huang, Yujie; Wu, Dongya; Huang, Zhaofeng; Li, Xiangyu; Merotto Junior, Aldo; Bai, Lianyang; Fan, Longjiang (2023) [Artigo de periódico]
      Weeds cause tremendous economic and ecological damage worldwide. The number of genomes established for weed species has sharply increased during the recent decade, with some 26 weed species having been sequenced and de ...

    • Wheat root growth as affected by soil strength 

      Merotto Junior, Aldo; Mundstock, Claudio Mario (1999) [Artigo de periódico]
      Soil compaction is a common problem that affects several soil properties and plant growth. In order to assess the effects of soil strength expressed by its mechanical resistance on roots, a growth chamber experiment was ...

    • Why controlling ticks is important 

      Waldman, Jéssica; Rodríguez Durán, Arlex; Ullah, Shafi; Numan, Muhammad; Parizi, Luis Fernando; Tirloni, Lucas; Ali, Abid; Logullo, Carlos; Vaz Junior, Itabajara da Silva (2024) [Artigo de periódico]
      Learning about ticks is important because of the diseases and problems they can cause in people and animals. Ticks are related to spiders and are not insects—they are parasites that live outside their host‘s body and infest ...

    • Wild animals housed at the IBAMA triage center in Southern Brazil, 2005-2021 : a glimpse into the endless conflicts between man and other animals 

      Cruz, Claudio Estevao Farias da; Soares, Camila Eloine da Silva; Hirt, Gustavo Bonamigo; Wagner, Paulo Guilherme Carniel; Andretta, Ines; Castro Neto, Walter de Nisa e (2022) [Artigo de periódico]
      Spurred on by the illegal billion-dollar revenue, the capture and trade of wild fauna remain the leading illegal activities in Brazil, and elsewhere. We present and discuss insights into the wild animals housed at the Wild ...

    • Wild strawberries (Rubus rosifolius Sm.) from southern Brazil : centesimal and mineral composition, total polyphenols, antioxidant, antibacterial and antihypertensive activities 

      Biondo, Elaine; Correa, Ana Paula Folmer; Brandelli, Adriano; Sant'Anna, Voltaire (2021) [Artigo de periódico]
      The objective of the present work was to evaluate polyphenols, trace elements and compounds with antioxidant, antimicrobial and anti-hypertensive activity in wild strawberries cultivated in Southern Brazil. Fruits present ...

    • Wischnewsky spots in cases of fatal hypothermia in cattle 

      Souza, Larissa Lobeiro de; Guizelini, Carolina de Castro; Almeida, Bruno Albuquerque de; Silva, Thaisa Xavier e; Lima, Acauane Sehnem; Carvalho, Vitor Fernandes; Driemeier, David; Lemos, Ricardo Antonio Amaral de (2024) [Artigo de periódico]
      Wischnewsky spots (WS) are hemorrhagic, non-erosive, and non-ulcerative lesions that affect the gastric mucosa. They are considered common in the stomachs of humans who have died from hypothermia and are rarely described ...

    • Wood annual average increment and K, Ca and Mg mineral compartments in soils cultivated with eucalypt 

      Amaral, Francisco Hélcio Canuto; Araújo, Elias Frank de; Furtini Neto, Antônio Eduardo; Inda Junior, Alberto Vasconcellos; Mancini, Marcelo; Curi, Nilton (2021) [Artigo de periódico]
      Forestry continuously grows in Brazil and it increases the concerns among planted forest companies regarding sustainable production. Knowledge about soil mineral reserves and nutrient release kinetics may introduce an ...

    • Wooden breast and white striping : comparative occurrence in three poultry companies 

      Teixeira, Sabrina Tolotti Fraga; Jaenisch, Fátima Regina F.; Peixoto, Jane O.; Coldebella, Arlei; Borges, Karen Apellanis; Furian, Thales Quedi; Dickel, Elci L.; Santos, Luciana Ruschel dos (2021) [Artigo de periódico]
      To increase the amount of meat produced, researchers have promoted intensive genetic selection for growth rate and muscling and have improved nutrition and management conditions. However, there has been an increase in the ...