Publicações - ciências agrárias
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BARBOSA, JULIERME ZIMMER;
MENDES, EVELYN JOSLIN;
MAEDA, SHIZUO;
SASS, ANNE LUIZ;
ARAUJO, ELOA;
MAGRI, EDERLAN;
PRIOR, STEPHEN ARTHUR;
Motta, Antonio Carlos Vargas
Palavra-chave:
Biossólido;
pinus;
Microscopia Eletrônica
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Agronomia; Ciência do Solo; Nutrição Mineral de Plantas;
CIENCIAS_AGRARIAS; Agronomia; Ciência do Solo; Fertilidade do Solo e Adubação
resumo ...
Abstract The use of biosolids as a sustainable alternative in the management of planted Pinus...
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SCHUH, BRUNO RAPHAEL FASOLLI;
BERNARDI, AMAURI;
DALEY, VERIDIANA LOURENÇO;
FERNANDES, SERGIO RODRIGO;
José Antônio de Freitas
Palavra-chave:
Feed conversion ratio ·;
metabolism;
Physically effective fiber ·;
prebiotic;
Rumen pH;
sheep
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Medicina Veterinária; Nutrição Animal
resumo ...
This study aimed to evaluate the effect of autolyzed yeast (obtained from culture of Saccharomyces cerevisiae in sugarcane derivatives) supplementation on diet digestibility, feeding behavior, levels of blood metabolites associated with protein and energy metabolism, and performance of Dorper × Santa Ines lambs finished in feedlot. Twenty-four non-castrated male lambs with an average age of 4 months and a body weight (BW) of 19.49 ± 3.08 kg were allocated to individual pens within a covered and elevated shed. The pens had a slatted floor without bedding suspended 1.8 m above the ground, and an area of 1.5 m2. The trial was set out in a completely randomized design with two treatments and twelve replicates each. The treatments consisted of a basal diet without yeast products (Control) or with yeast culture (Yeast, RumenYeast® at 5 g/animal/day). Lambs were fed ad libitum with a total mixed ration (TMR) composed of 400 g/kg of dry matter (DM) of Tifton 85 hay (Cynodon spp.) and 600 g/kg DM of concentrate feed, and contained 146 g/kg DM of crude protein and 2.30 Mcal/kg DM of metabolizable energy. The experiment was conducted over 84 days, with the first 14 days serving as an adaptation period. The subsequent experimental period was divided into two phases to evaluate animal performance (Days 1–63) and DM digestibility (Days 64–70). The supplementation with autolyzed yeast did not affect rumen or fecal pH, the DM digestibility, as well as the feeding behavior of lambs (the time spent on feeding, rumination, water intake, and idleness activities). In addition, yeast supplementation did not alter the serum levels of albumin, creatinine, urea, or level of plasma glucose, resulting in similar animal performance compared to the Control group. The mean values for final BW, DM intake, average daily gain, and feed conversion ratio were 37.52 kg, 1.051 kg/day, 0.286 kg/day, and 3.74 kg DM/kg gain, respectively. In the conditions of this study, the supplementation of autolyzed yeast in TMR (5 g/animal/day) does not affect diet digestibility, feeding behavior, blood metabolites, or performance of lambs finished in feedlot. Regarding that metabolic and performance lamb responses were not improved, the supplementation of autolyzed yeast at the tested dose is not recommended. However, it is important to note that markers related to immunity and inflammation were not evaluated in our work, and these should be considered in future studies.
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NICOLA, JUSSARA MARIA FERRAZZA;
CRESTANI, CAMILA;
CORTEZE, ANA PAULA;
RUTHES, BARBARA ELIS SANTOS;
FLORES, JOÃO PEDRO MORO;
ALVES, LUCAS AQUINO;
ASSMANN, TANGRIANI SIMIONI;
Aníbal de Moraes;
OLIVEIRA, LEANDRO BITTENCOURT DE
Palavra-chave:
system fertilization;
pasture production;
crop yield;
nutrient cycling;
nutritional index
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Agronomia; Fitotecnia; Forragicultura;
CIENCIAS_AGRARIAS; Agronomia; Sistemas integrados;
CIENCIAS_AGRARIAS; Agronomia; Ciência do Solo; Fertilidade do Solo e Adubação
resumo ...
ABSTRACT: This study evaluated the effects of early potassium fertilization and integrated...
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EMPL, FLORIAN;
PELZ, STEFAN;
SCHATZL, MIRIAM;
KLEUCKER, SONJA;
GARRETT, ALEXANDRE TECHY DE ALMEIDA;
FERRAZ, FERNANDO AUGUSTO;
NATALLI, LUIZ HENRIQUE;
DA SILVA, DIMAS AGOSTINHO DA;
LOPES, EDUARDO DA SILVA;
Afonso Figueiredo Filho
Palavra-chave:
Slow pyrolysis;
Biochar;
Atlantic forest biome;
Organic carbon;
Hovenia dulcis;
Mimosa scabrella
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Manejo Florestal; Dendrometria e Inventário Florestal;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Tecnologia da Madeira
resumo ...
The Mixed Ombrophyllous Forest (MOF), inserted in the Atlantic Forest biome, is of great ecological value, with deficient management strategies. In this context, sustainable management helps to promote the regeneration and growth of individual trees and control others, while maintaining the natural forest structure. This study therefore aimed to discuss opportunities and limitations of biochar, produced from two species from the MOF, which are currently only utilized to a limited extent in the study area in southern Brazil. A slow pyrolysis process at a lab scale was designed, biochar was produced, and key properties were analyzed from Hovenia dulcis Thunb. (chosen as an invasive species) and Mimosa scabrella Benth. (chosen as a native, fast-growing species), including branches and stems. The results showed that branches of Mimosa scabrella (BMS) had the highest biochar yield (30.32 ± 0.3%) and the highest electrical conductivity (415.08 ± 24.75 mS cm−1). Stems of Mimosa scabrella (SMS) showed the highest higher heating value (HHV—31.76 ± 0.01 MJ kg−1), lower heating value (LHV—31.03 ± 0.01 MJ kg−1), and energy yield (49.1%), while the branches of Hovenia dulcis (BHD) showed the lowest values. For the elemental analysis, SMS showed the best results, with the highest amount of fixed carbon (78.62 ± 0.22%) and carbon content (85.87 ± 0.083%), and consequently the lowest amount of ash (3.52 ± 0.08%). BHD showed a better water-holding capacity (303.26 ± 15.21%) and higher pH value (7.65 ± 0.14). The investigations conducted on the biochar from both species indicate a strong suitability of these woods for producing high-quality biochar.
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Caio Veloso Silva;
IVAN ROQUE DE BARROS FILHO;
Gilberto Serighelli Júnior;
Juliana Sperotto Brum;
Karine Kulik;
Lucas Augusto dos Santos Flores;
Maressa Mantovani de Lara Martins;
Adrya Hardt Faria dos Santos;
Juan Carlos Duque;
Peterson Triches Dornbusch
Palavra-chave:
anesthesia;
Surgery;
Obstruction;
urinary tract;
Urolithiasis
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Medicina Veterinária; Cirurgia veterinária;
CIENCIAS_AGRARIAS; Medicina Veterinária; Clínica e Cirurgia Animal; Anestesiologia Animal
resumo ...
(en)
Urolithiasis is a multifactorial pathological condition commonly reported in pigs worldwide, characterized by the presence of uroliths within the urinary tract. One of its major consequences is partial or complete urinary obstruction, which may lead to death if not promptly managed through surgical intervention or urolith dissolution. Compared to other domestic species, studies addressing the therapeutic management of urolithiasis in pigs remain limited. This report describes a case of vesical urolithiasis in a male Moura pig treated at the Veterinary Hospital of the Federal University of Paraná (HV-UFPR), presenting with stranguria, pollakiuria, and intermittent hematuria. Following diagnosis based on laboratory and imaging findings, surgical management via cystotomy was performed to remove the uroliths. The clinical and surgical approach adopted proved to be safe and effective for the treatment of urolithiasis, contributing to the restoration of urinary function and improved quality of life for the patient.
(pt)
A urolitíase é um processo patológico multifatorial, muito comum e frequente em suínos de todo o mundo, caracterizado pela presença de urólitos no trato urinário. Uma das consequências é a obstrução parcial ou total das vias urinárias, podendo levar o animal a óbito caso intervenções cirúrgicas ou de dissolução dos urólitos não sejam realizadas. São limitados os estudos relacionados ao manejo terapêutico da urolitíase em suínos, em comparação a outras espécies de animais domésticos. O presente estudo descreve a ocorrência de urolitíase vesical em um suíno macho, da raça Moura, atendido no Hospital Veterinário da Universidade Federal do Paraná (HV-UFPR), que apresentava estrangúria, polaquiúria e hematúria intermitente. Após o diagnóstico da urolitíase com base em exames laboratoriais e de imagem, foi realizada técnica cirúrgica de cistotomia, visando à remoção dos urólitos. O manejo clínico-cirúrgico empregado se mostrou seguro e eficaz para o tratamento da urolitíase, contribuindo com uma melhor qualidade de vida do paciente.
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PASSOS, LARISSA SOUZA;
PINTO, ERNANI;
DE SOUZA, ALEXANDER OSSANES;
DE FREITAS, PALOMA NATHANE NUNES;
DE FREITAS, LUCAS VICTOR PEREIRA;
PASCHOAL, JONAS AUGUSTO RIZZATO;
PONT, GIORGI DAL;
ROSSI, MÔNICA LANZONI;
PEDROSO, JOSÉ LUCAS;
Antonio Ostrensky Neto
Palavra-chave:
Tilápia;
Guanitoxina;
Toxicidade;
Estresse Oxidativo;
Genotoxicidade
Áreas do conhecimento:
Ciências Biológicas; Farmacologia; Toxicologia; Toxicologia Ambiental;
CIENCIAS_AGRARIAS; Recursos Pesqueiros e Engenharia de Pesca; Aqüicultura; Piscicultura
resumo ...
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José Luiz Fernandes Cerveira Filho
Palavra-chave:
sociologia ambiental;
Paraná;
biodiesel;
agropecuária
Áreas do conhecimento:
Ciências Humanas; Educação;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Sociologia Ambiental;
CIENCIAS_AGRARIAS; Zootecnia
resumo ...
(pt)
Este trabalho parte da hipótese de que as atividades de pecuária de corte e agricultura tradicional vêm perdendo espaço no interior do Estado do Paraná em decorrência de diversos fatores, entre eles os incentivos promovidos por políticas públicas voltadas ao setor energético. O objetivo central desse artigo é catalogar, analisar e divulgar dados sobre a dinâmica das atividades agropecuárias nos estados do Paraná, Pará e Mato Grosso, contribuindo para a produção acadêmica sobre o tema e oferecendo base científica para pesquisas futuras. A metodologia consistiu na coleta de dados junto a órgãos públicos de estatística, seguidos da seleção, organização e apresentação em formato gráfico. A análise aponta indícios de que o Programa Nacional de Produção e Uso do Biodiesel tem estimulado o cultivo de culturas energéticas no Paraná, o que pode estar relacionado à queda observada no tamanho do rebanho bovino.
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DAL PONT, GIORGI;
DE SOUZA-BASTOS, LUCIANA RODRIGUES;
SADAUSKAS-HENRIQUE, HELEN;
GRASSI, MARCO TADEU;
DOLATTO, RAFAEL GALLET;
Antonio Ostrensky Neto
Palavra-chave:
Toxicity;
hidrocarbonetos;
Toxicidade;
Astyanax altiparanae;
HPAs
Áreas do conhecimento:
Ciências Biológicas; Farmacologia; Toxicologia; Toxicologia Ambiental;
CIENCIAS_AGRARIAS; Recursos Pesqueiros e Engenharia de Pesca; Aqüicultura; Piscicultura
resumo ...
We quantified the acute toxicity of water-soluble fractions (WSFs) from crude oil, gasoline, diesel, lubricant oil, and two insulating mineral oils (IMOa, IMOb) to the Neotropical fish Astyanax altiparanae. Six independent static-renewal assays (110 fish each; 11 nominal WSF dilutions [0–100% v/v]) were performed. The calculated LC50-96 h and LC10-96 h were gasoline = 2.65 and 0.5%; diesel = 16.22 and 2.75%; IMOa = 17.01 and 5.35%; petroleum = 23.59 and 1.76%; lubricant = 27.65 and 11.24%; and IMOb = 53.58 and 7.84%. Gasoline was the most toxic, reflecting its high BTEX and low-molecular-weight PAH content, whereas lubricant oil and IMOb were least toxic, consistent with their dominance of high-molecular-weight hydrocarbons. The unexpectedly high toxicity of IMOa, comparable to diesel, is likely attributable to proprietary antioxidant additives. These baseline LC50/LC10 data fill a gap for tropical freshwater species and provide reference points for subsequent sub-chronic testing and regional environmental-risk assessments. By establishing a clear toxicity hierarchy for common hydrocarbon contaminants and highlighting the overlooked role of additives, this work is crucial for developing scientific-grounded water quality guidelines tailored to protect the unique and often understudied biodiversity of neotropical freshwater ecosystems.
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Grasciela Gassenferth;
Vitor Mohad Valle;
fernando Andrade Souza;
Marcio Gionordoli Teixeira Gomes;
Gabriela Volf Andrade Rosa;
Eriklis Nogueira;
Luiz Ernandes Kozicki
ARQUIVO BRASILEIRO DE MEDICINA VETERINÁRIA E ZOOTECNIA (ONLINE),
v. 77,
n. 02,
p. 0001
2025
Palavra-chave:
bovine;
Bovine somatotropin recombinant;
Inseminação artificial em tempo fixo (IATF)
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Medicina Veterinária; Reprodução Animal; biotecnologia da reprodução
resumo ...
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GASSENFERTH, G.;
VALLE, V.M.;
Fernando Andrade Souza;
GOMES, M.G.T.;
GASSENFERTH JÚNIOR, A.;
ROSA, G.V.A.;
BRAGATO, A.;
NOGUEIRA, E.;
KOZICKI, L.E.
resumo ...
ABSTRACT This study aimed to evaluate the efficiency of recombinant bovine somatotropin (rbST)...
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