Publicações - ciências agrárias
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PALUDETO, JOÃO GABRIEL ZANON;
MARCATTI, GUSTAVO EDUARDO;
ESTOPA, REGIANE ABJAUD353;T;283;, JAROSLAV;
João Carlos Bespalhok Filho;
RESENDE, RAFAEL TASSINARI
Palavra-chave:
Interação Genótipo Ambiente;
Melhoramento de plantas
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Genética e Melhoramento Florestal
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Fernando Andrade Souza;
Geraldo Francisco dos Santos Júnior;
WALLYSON RAFAEL MACHADO SANTOS;
Mayara Silvestre;
Natalia Santana Siqueira de Lara;
Rafael Augusto Satrapa;
Luciane Maria Laskoski;
KOZICKI, L.E.;
Pedro Henrique Lomba de Lima
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Medicina Veterinária; Reprodução Animal; Biotecnologia Aplicada a Reprodução Animal
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The present study aimed to evaluate the pregnancy rate following fixed-time artificial insemination (FTAI) in Nelore cattle supplemented with either long-acting progesterone (Experiment 1) or an injectable nutritional complex (Experiment 2). In Experiment 1, multiparous cows underwent estrus synchronization and were inseminated on day D10 (D0 = first day of synchronization). On D15, animals were assigned to a control group (n = 166), which received an intramuscular injection of 0.5 mL of 0.9% NaCl solution, or to a treated group (n = 147), which received 0.5 mL of long-acting progesterone (150 mg). In Experiment 2, heifers were divided into a control group (n = 108), which received no treatment, and a treated group (n = 99), which received an intramuscular injection of a nutritional supplement on D0 of synchronization. After 7 days of FTAI, all cows and heifers were maintained with bulls for natural mating (20 females per bull) for the following 45 days. Pregnancy diagnosis was performed 70 days after FTAI. The pregnancy rate was higher in the treated groups for both experiments (53.1% vs. 42.8% in Experiment 1, and 53.7% vs. 38.8% in Experiment 2), although differences were not statistically significant (p > 0.05). In animals that did not conceive, ovarian cyclicity was not suppressed, indicating that the use of long-acting progesterone or nutritional supplementation did not interfere with the return to estrus. In conclusion, supplementation with long-acting progesterone or an injectable nutritional complex tended to improve pregnancy rates in Nelore cattle subjected to FTAI, without residual inhibitory effects on subsequent ovarian activity.
(pt)
The present study aimed to evaluate the pregnancy rate following fixed-time artificial insemination (FTAI) in Nelore cattle supplemented with either long-acting progesterone (Experiment 1) or an injectable nutritional complex (Experiment 2). In Experiment 1, multiparous cows underwent estrus synchronization and were inseminated on day D10 (D0 = first day of synchronization). On D15, animals were assigned to a control group (n = 166), which received an intramuscular injection of 0.5 mL of 0.9% NaCl solution, or to a treated group (n = 147), which received 0.5 mL of long-acting progesterone (150 mg). In Experiment 2, heifers were divided into a control group (n = 108), which received no treatment, and a treated group (n = 99), which received an intramuscular injection of a nutritional supplement on D0 of synchronization. After 7 days of FTAI, all cows and heifers were maintained with bulls for natural mating (20 females per bull) for the following 45 days. Pregnancy diagnosis was performed 70 days after FTAI. The pregnancy rate was higher in the treated groups for both experiments (53.1% vs. 42.8% in Experiment 1, and 53.7% vs. 38.8% in Experiment 2), although differences were not statistically significant (p > 0.05). In animals that did not conceive, ovarian cyclicity was not suppressed, indicating that the use of long-acting progesterone or nutritional supplementation did not interfere with the return to estrus. In conclusion, supplementation with long-acting progesterone or an injectable nutritional complex tended to improve pregnancy rates in Nelore cattle subjected to FTAI, without residual inhibitory effects on subsequent ovarian activity.
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Shelley W. Cochran;
Lynsey Wagner;
Christine Molter;
Melissa Hanson;
Laura Rice;
SHAW, GILLIAN C.;
Fabiano Montiani Ferreira;
MOORE, BRET A.
VETERINARY OPHTHALMOLOGY,
v. 26,
n. 26,
p. 1-9,
2026
Palavra-chave:
retina;
retinal degeneration;
exotic animals;
wild animal ophthalmology;
Tapir
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Medicina Veterinária; Clínica e Cirurgia Animal; Oftalmologia Veterinária;
CIENCIAS_AGRARIAS; Medicina Veterinária; Clínica e Cirurgia Animal; Medicina de Animais Selvagens
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Marcos Vinícius da Silva Alves de Lima;
Amanda Ferreira de Oliveira;
Andrielly Peruzzo Mastaler;
DANIELA BIONDI
Urban Transformations,
v. 8,
n. 7,
p. 1-21,
2026
Palavra-chave:
Geoprocessing,;
Landscape metrics;
Protection area;
Ecosystem Services
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Ecologia e Estudos da Paisagem;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Conservação da Natureza; Recuperação de Areas Degradadas;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Fisiologia Florestal
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VOITENA, JÉSSICA N.;
MARINHO, TATIANE O. C.;
Fabiano Montiani Ferreira;
CREMONINI, DANIELA N.;
CHIURCIU, JOÃO L. V.;
JESUS, NADJA S.;
POHLE, ANA P. V. B.;
DA CUNHA, OLICIES;
Brito, Fábio L. C.
Palavra-chave:
braquicefálicos;
Oftalmologia Veterinária;
tear production
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Medicina Veterinária; Clínica e Cirurgia Animal; Oftalmologia Veterinária;
CIENCIAS_AGRARIAS; Medicina Veterinária; Clínica e Cirurgia Animal; Clínica Veterinária
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The precorneal tear film is critical for ocular surface health, and brachycephalic dogs are particularly predisposed to tear film instability due to their unique conformation. This study aimed to establish normative values for tear film parameters in healthy brachycephalic dogs using the OSA-Vet®, including Schirmer tear test-1 (STT-1), tear meniscus height (TMH), and non-invasive tear breakup time (TBUTNI). Forty brachycephalic dogs (66 eyes) with STT-1 values between 15 and 25 mm/min underwent complete ophthalmological examination and OSA-Vet® evaluation. Data were analyzed for distribution, descriptive statistics, and correlations. Median values were 20 mm/min [19–22] for STT-1, 0.45 mm [0.36–0.62] for TMH, and 1.25 s [0.70–4.00] for TBUTNI. Spearman’s analysis revealed no significant association between STT-1 and TMH (ρ = 0.136, p = 0.277) or between TMH and TBUTNI (ρ = 0.046, p = 0.716). A weak positive correlation was observed between STT-1 and TBUTNI (ρ = 0.256, p = 0.038). These results demonstrate that even in dogs with preserved aqueous tear production, TBUTNI values remain low and variable, highlighting the predisposition of brachycephalic breeds to evaporative instability. TMH showed limited diagnostic value, underscoring the importance of multimodal tear film assessment. Previous studies have used OSA-Vet® to evaluate ocular surface parameters across cephalic conformations. The present study focuses specifically on establishing clinically applicable reference values in phenotypically brachycephalic dogs screened for normal aqueous tear production.
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Euclides Silva;
André Braga;
Silvio Peixoto;
Eulalio Arámbul-Muñoz;
Eduardo Luis Cupertino Ballester;
Rossineide Rocha
Palavra-chave:
bft;
carbon source
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Pesqueiros e Engenharia de Pesca; Aqüicultura; Piscicultura
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This study evaluated alternative carbohydrate sources available in the Brazilian Amazon for use in biofloc systems for the cultivation of white shrimp ( Penaeus vannamei ). The motivation stems from the limited accessibility in this region of sugarcane molasses, a conventional carbon source for the production of bioflocs. Four sources of carbohydrates were tested: coffee grounds, cassava meal, tapioca starch, and molasses, for 35 days. Juvenile shrimp (initial weight 0.14 g) were stocked at a density of 300 ind m -3 in 12 70-L polyethylene tanks, across four treatments with three replications. The effects of the springs on water quality, zootechnical performance of shrimp, and centesimal composition of biofloc and animals were evaluated. All sources maintained water quality within the recommended range for the species. However, the molasses treatment resulted in significantly higher zootechnical performance, with a final weight of 0.61 g and a weekly gain of 0.09 g ( P < 0.05). Regarding composition, only moisture content varied significantly between treatments, and coffee grounds and molasses differed from cassava meal and tapioca gum. In addition, shrimp produced with coffee grounds differed significantly from those treated with tapioca gum. In conclusion, although molasses yielded the best performance, all alternative sources also proved efficient. The results show the potential of regional inputs as viable alternatives, expanding the applicability of biofloc technology in areas where molasses is not readily available, contributing to the consolidation of aquaculture practices adapted to Amazonian conditions, and promoting greater productive and environmental autonomy in the activity.
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Luis Otávio Marchi de Araújo;
Pinto, M.A.V.;
Jotair Elio Kwiatkowski Júnior;
Daniel Rigoni
Journal of the Brazilian Society of Mechanical Sciences and Engineering,
v. 48,
n. 3,
p. 1-12,
2026
DOI
Palavra-chave:
Grain aeration;
Thorpe model;
Explicit upwind difference scheme;
Grain moisture content
Áreas do conhecimento:
Ciências Exatas e da Terra; Matemática; Matemática Aplicada; Análise Numérica;
Engenharias; Engenharia Mecânica; Fenômenos de Transporte; Transferência de Calor;
CIENCIAS_AGRARIAS; Engenharia Agrícola; Engenharia de Processamento de Produtos Agrícolas; Armazenamento de Produtos Agrícolas
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BACH, MARIANA BOLZANI;
PIMPÃO, CLAUDIA TURRA;
PEROTTA, JOÃO HENRIQUE;
DE BARROS FILHO, IVAN ROQUE;
GIUFFRIDA, ROGÉRIO;
LESCANO, SUSANA ANGÉLICA ZEVALLOS;
LUHM, KARIN REGINA;
FIGUEIREDO, FABIANO BORGES;
FACHIN, CAMILA GIRARDI;
Fabiano Montiani Ferreira;
SANTARÉM, VAMILTON ALVARES;
KMETIUK, LOUISE BACH;
Biondo, Alexander Welker;
FREITAS, AARONSON RAMATHAN;
GUARESCHI, BIANCA LUIZA VALDUGA;
FERREIRA, ISABELLA BRAGHIN;
DE SOUZA FILHO, ROBERTO TEIXEIRA;
RODRIGUES E FONSECA, GABRIELA;
DE ALVARENGA, FERNANDA MURARO;
DELAI, RUANA RENOSTO;
et.al
Palavra-chave:
one heatlh;
retina;
retinopathy;
Zoonosis;
small animals
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Medicina Veterinária; Clínica e Cirurgia Animal; Oftalmologia Veterinária;
Ciências da Saúde; Medicina; Clínica Médica; Oftalmologia;
CIENCIAS_AGRARIAS; Medicina Veterinária; Clinica de pequenos animais
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Although toxocariasis has been considered a common and important neglected zoonotic parasitic disease worldwide, serologic ownership risk and owner-dog concomitant ophthalmic assessment remain to be fully established. Meanwhile, high toxocariasis prevalence has been recently found in seashore areas of southern Brazil. Accordingly, the present study aimed to perform owner serologic, fecal/hair dog, and owner- dog ophthalmic assessment in an endemic seashore area of southern Brazil. In overall, 112/342 (32.75%) owners were seropositive to anti-Toxocara spp. IgG antibodies by ELISA, with family income statistically significant (p = 0.007) as associated risk factor in the univariate analysis. In addition, Toxocara spp. eggs were visualized in only 6/216 (2.78%) dog feces and 5/236 (2.12%) dog hair samples. Logistic regression indicated that untreated water increased 6.3-fold the dog likelihood for T. canis eggs in hair or feces, while purebred dogs and outdoor access were considered as associated protective factors. Only one/342 individual presented highly suggestive ocular toxocariasis, in one eye and at the cicatricial stage (seropositive for anti-Toxocara IgG antibodies). Out of an additional 32 individuals with some degree of retinal scarring compatible with prior chorioretinitis, 10/32 (31.3%) were also seropositive for anti-Toxocara IgG antibodies. In addition, ophthalmic abnormalities were identified in 205/237 (86.5%) examined dogs, with the most frequent findings involving various nonspecific chronic lesions in 177/237 (74.7%), followed by Florida Spot Keratopathy (FSK) in 12/237 (5.1%) and retinopathy in 11/237 (4.6%) dogs. FSK prevalence in dogs was considered very high. Although less prevalent, fundoscopic changes were significantly associated with Toxocara spp. in both owners and their dogs. In conclusion, similar ophthalmologic abnormalities associated with shared environmental exposure to Toxocara spp. have highlighted the importance of One Health approach for holistic interpretation of human-dog natural occurrence of toxocariasis.
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MENDES, MARIANA PAIVA;
BERTOLAZZO, ERIKA;
NEVES, ISABELA LESSNAU DE FIGUEIREDO;
JUK, VITÓRIA AUGUSTA MOREIRA ANDRION;
MN Rocha
Palavra-chave:
Alimento;
nutracêutico;
PANC;
proteína;
Suplemento alimentar
Áreas do conhecimento:
Ciências da Saúde; Farmácia; Análises Clínicas;
Ciências da Saúde; Farmácia; Bromatologia; Nutrição;
CIENCIAS_AGRARIAS; Ciência e Tecnologia de Alimentos; Tecnologia de Alimentos; Tecnologia de Produtos de Origem Vegetal
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Objective: To review the characteristics and applications of Ora-Pro-Nóbis (OPN) (Pereskia aculeata Mill.), highlighting evidence of health promotion related to its consumption, as well as clarifying the current regulatory scenario. Literature review: OPN is an Non-Conventional Food Plant (PANC) that is easy to cultivate and has high nutritional value due to its high concentrations of proteins, fibers, vitamins (A, C, and B9), and minerals (calcium, iron, magnesium, manganese, and zinc). Preclinical and clinical evidence associates its consumption with potential health benefits, including anti-obesity, antioxidant, anti-inflammatory, analgesic, and intestinal modulatory activities. Additionally, investigations indicate an enhancement of longevity, neuroprotective effects, and improvements in metabolic parameters. The traditional use of OPN in culinary practices and folk medicine is extensive. However, as of this date (Dec/2025), the Brazilian Health Regulatory Agency (Anvisa) prohibits its use as an ingredient in dietary supplements, restricting its consumption solely to traditional food forms. Final considerations: The hardiness and broad applications make OPN production a viable alternative capable of adding value for small-scale farmers. However, further studies, especially clinical trials, must be conducted to investigate its safety and potential health benefits, thereby rationalizing the benefits associated with OPN consumption.
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Objetivo: Revisar las características y aplicaciones de la Ora-Pro-Nóbis (OPN) (Pereskia aculeata Mill.), destacando las evidencias de promoción de la salud relacionadas con su consumo y aclarando el escenario regulatorio vigente. Revisión bibliográfica: La OPN es una Planta Alimenticia No Convencional (PANC) de fácil cultivo y elevado valor nutricional por sus concentraciones de proteínas, fibras, vitaminas (A, C y B9) y minerales (calcio, hierro, magnesio, manganeso y zinc). Evidencias preclínicas y clínicas asocian su consumo con potenciales beneficios para la salud, incluyendo actividades antiobesidad, antioxidantes, antiinflamatorias, analgésicas y moduladoras de la funcionalidad intestinal. Además, investigaciones señalan potencialización de la longevidad, efectos neuroprotectores y mejora de los parámetros metabólicos. El uso tradicional de la OPN en gastronomía y medicina popular es amplio. Sin embargo, hasta la fecha (Dic/2025), la Agencia Nacional de Vigilancia Sanitaria (Anvisa) veta su uso en suplementos alimenticios, restringiendo su consumo a las formas alimentarias tradicionales. Consideraciones finales: La rusticidad y las amplias aplicaciones de la OPN la convierten en una alternativa de valor para pequeños productores. No obstante, se requieren más estudios, sobre todo ensayos clínicos, que investiguen su seguridad y potenciales beneficios para la salud, racionalizando así los beneficios asociados al consumo de OPN.
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Objetivo: Revisar características e aplicações da Ora-Pró-Nobis (OPN) (Pereskia aculeata Mill.), destacando-se evidências de promoção de saúde relacionadas a seu consumo, além de esclarecer o cenário regulatório vigente. Revisão bibliográfica: A OPN é uma Planta Alimentícia Não Convencional (PANC) de fácil cultivo e elevado valor nutricional, devido às elevadas concentrações de proteínas, fibras, vitaminas (A, C e B9) e minerais (cálcio, ferro, magnésio, manganês e zinco). Evidências pré-clínicas e clínicas associam seu consumo à potenciais benefícios à saúde, incluindo atividades antiobesidade, antioxidante, anti-inflamatória, analgésica e moduladora da funcionalidade intestinal. Adicionalmente, investigações apontam potencialização da longevidade, efeitos neuroprotetores e melhora de parâmetros metabólicos. O uso tradicional da OPN na culinária e medicina popular é amplo. Contudo, até o momento (Dez/2025), a Agência Nacional de Vigilância Sanitária veta seu uso como ingrediente em suplementos alimentares, restringindo o consumo somente às formas alimentares tradicionais. Considerações finais: A rusticidade e amplas aplicações tornam a produção de OPN uma alternativa capaz de agregar valor aos pequenos produtores. No entanto, maiores estudos, sobretudo ensaios clínicos, devem ser desenvolvidos a fim de investigar a segurança e potenciais benefícios à saúde, racionalizando os benefícios associados ao consumo de OPN.
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REIS, ALLAN RODRIGO NUNHO;
DANIELA BIONDI;
Daniel Zambiazzi Miller;
Severo Ivasko Júnior
REVISTA ELETRÔNICA AMBIENTE: GESTÃO E DESENVOLVIMENTO,
v. 19,
n. 1,
p. 1-28,
2026
Palavra-chave:
espécie invasora;
floresta urbana;
florística
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Ecologia e Estudos da Paisagem;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Conservação da Natureza; Recuperação de Areas Degradadas;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Fisiologia Florestal
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