Universidade Federal de Viçosa

Multiple dimensions of taxonomic tree diversity reveal complementary effects of environmental filtering and land-use legacy in an urban Atlantic Forest

Abstract The Brazilian Atlantic Forest is a highly diverse ecosystem that has been extensively fragmented by human activities, making secondary urban forests important for biodiversity conservation. However, the influence of environmental filtering and land-use legacies on taxono...

Controlled nucleation of hopfions with field pulses

Abstract We demonstrate a mechanism for the deterministic nucleation of magnetic hopfions in cylindrical nanopillars via transient magnetic field pulses. By exploiting a chiral magnetic cylinder with engineered surface uniaxial anisotropy, we show that field pulses trigger a non-...

Phenolic Compounds from Hibiscus sabdariffa L.: Extraction, Microencapsulation and Application in a Buttermilk-Based Fermented Dairy Beverage

Phenolic compound extracts from Hibiscus sabdariffa L. (HS) exhibit promising functional and technological properties; however, their application in foods is limited by their susceptibility to degradation, making microencapsulation a promising strategy. This study aimed to test d...

Global climatic suitability and future distribution of Hypsipyla grandella : Implications for Meliaceae under climate change

Abstract Hypsipyla grandella Zeller (Lepidoptera: Pyralidae) is one of the main pests of species in the Meliaceae family, and predicting areas of climatic suitability for this species is important for planning pest management strategies and implementing phytosanitary policies. Th...

Gram-Positive Bacteria Responses to Antibiotics When Incubated in Fecal in Vitro Microcosms from Swine Supplemented with Chlorophyllin

Standardized antimicrobial susceptibility assays use defined culture media and may therefore not fully account for gastrointestinal constituents that influence bacterial responses to antibiotics. This study evaluated whether swine fecal extracts, including extracts associated wit...

Effects of microwave or infrared radiation on protein ruminal degradation and in vitro intestinal digestibility in feedstuffs

Microbial crude protein ( MCP ) is the main source of amino acids ( AA ) in the small intestine, followed by rumen undegraded protein ( RUP ). Due to limited MCP synthesis and increased AA demand in high-producing ruminants, strategies to enhance intestinal protein availability a...

Description of a new species of Ixodes Latreille, 1795 (Acari: Ixodidae) parasitizing small mammals in the Andean Chocó Biosphere Reserve of Ecuador

Ixodes is the most diverse genus of hard ticks worldwide, with nearly 62 species recorded in the Neotropical region, including nine in Ecuador. However, the diversity of this genus in the Ecuadorian Andean Chocó remains poorly understood. In this study, we describe a new species...

Foliar Chitosan, Paraburkholderia tropica and Bacillus infantis Alter Chitinase and β-1,3-Glucanase Activity Independently of Meloidogyne spp. Infection and Reduce Nematode Reproduction in Tomato

Root-knot nematodes (Meloidogyne spp.) are the most economically important group of plant-parasitic nematodes worldwide. We tested whether foliar elicitors induce defense enzymes in leaves and reduce nematode reproduction in the roots of the same plants. Tomato cv. Santa Clara, w...

Sorption, desorption, and leaching of S-metolachlor in two soils amended with maize stover

S-metolachlor is widely used across various crops for its effectiveness as a grass herbicide and is considered pivotal, particularly amidst multiple cases of resistance in weed biotypes of the Poaceae family. In no-till systems, the presence of surface residues can modify herbici...

Scaling of Island Densities in Multilayer Growth and an Application to α-Sexithiophene Films

Abstract Kinetic Monte Carlo simulations of thin-film deposition are performed with film–substrate interactions slightly stronger than film–film interactions and with layer-dependent Ehrlich–Schwoebel (ES) barriers for molecules to cross step edges. Simulations with rapid changes...

Landscape genomics on Acrocomia aculeata trees aiming breeding selection

Abstract Acrocomia aculeata is a promising oil-producing palm whose breeding is constrained by its long juvenile period, high costs of phenotypic evaluations, and limited genomic resources. Here, we present an integrative framework combining landscape genomics and genomic selecti...

Partial Replacement of Spray-Dried Blood Plasma with Alternative Animal and Insect Protein in Weaned Pig Diets: Effects on Growth Performance, Digestibility, and Gut Health

This study was to evaluate the effects of partially replacing spray-dried blood plasma (SDP) with alternative insect- and animal-derived protein meals on growth performance, diarrhea incidence (DI), nutrient digestibility, intestinal responses, and oxidative status of weaned pigs...

PS12-25. Effects of a Phytogenic Additive and Sodium Monensin on Performance and Health of Weaned Beef Cattle.

Abstract The objective was to evaluate the use of sodium monensin and a phytogenic additive (Digestarom Prime®) mixed with protein-energy supplements on supplement intake (SI), average daily gain (ADG), final body weight (fBW), serum protein and energy metabolites, acute-phase pr...

93. Smartbreeder: A Data-driven Virtual Assistant to Support Nellore Sire Selection Accounting for Genotype-by-environment-by-management Interactions.

Abstract The enviromics approach has emerged as an efficient framework for modeling genotype-by-environment-by-management (GxExM) interactions in animal breeding. It characterizes environmental conditions (ECs) in which animals are raised using detailed environmental and manageme...

PS12-11. Prepartum Rumen-Protected B Vitamin Complex Supplementation Improves Maternal Reserves, Colostrum Yield, and Reproductive Responses in Beef Cows.

Abstract Late gestation is characterized by increased metabolic demands that may compromise maternal reserves and influence fetal development and postpartum performance in beef cows, and B-complex vitamins act as essential cofactors in oxidative metabolism, gluconeogenesis, and o...

Lactoferrin/κ-Carrageenan Interactions: Thermodynamic and Kinetic Insights through Surface Plasmon Resonance and Steady-State Fluorescence

Abstract Protein–polysaccharide complexes play important roles in a wide range of technological applications. To elucidate the molecular interactions governing the formation of bovine lactoferrin (BLF)−κ-carrageenan (κCG) bionanostructures, the thermodynamic and kinetic parameter...

Positive solutions of singular elliptic problems with unbounded exponents and unbounded convection term

Abstract In this paper, we study the existence and nonexistence of positive solutions for a class of Dirichlet problems with a singularity and a convection term. Precisely, we consider the existence of a positive solution to the Dirichlet problem $$\begin{aligned} -\Delta _p u =...

Soil acidity, cation balance, exchangeable potassium status and cation retention capacity under K-bearing rock dust–organic amendment systems in a tropical Alfisol of southwestern Nigeria

Abstract Soil acidity and weak cation-holding conditions reduce nutrient-use efficiency in highly weathered tropical soils and constrain progress towards Sustainable Development Goals (SDGs) 2, 12 and 15. This study evaluated the 14-day soil chemical response to locally sourced p...

Non-linear kernel methods for genomic prediction of soybean yield and quality in multi-environment trials

Abstract Key message Nonlinear kernels improve the accuracy of genomic prediction while preserving the inferential framework of quantitative genetics. Abstract Improving the predictive accuracy of genomic prediction (GP) for complex genetic architectures involving non-additive ef...

Behavior of surface contamination by Salmonella spp. on broiler carcasses during slaughter stages

Abstract Salmonella spp. is a globally relevant pathogen frequently associated with foodborne infections and poultry products. This study aimed to evaluate the occurrence and quantification of Salmonella spp. during different stages of the broiler slaughter process and to assess...