A5058310196- Ruminant Nutrition and Digestive Physiology
- Agroforestry and silvopastoral systems
- Soil Management and Crop Yield
- Animal Nutrition and Physiology
- Genetic and phenotypic traits in livestock
- Soil Carbon and Nitrogen Dynamics
- Agriculture and Rural Development Research
- Remote Sensing in Agriculture
- Agriculture Sustainability and Environmental Impact
- Environmental and biological studies
- Effects of Environmental Stressors on Livestock
- Smart Agriculture and AI
- Botany and Plant Ecology Studies
- Turfgrass Adaptation and Management
- Meat and Animal Product Quality
- Phytase and its Applications
- Reproductive Physiology in Livestock
- Pasture and Agricultural Systems
- Forest ecology and management
- Agronomic Practices and Intercropping Systems
- African Botany and Ecology Studies
- Remote Sensing and LiDAR Applications
- Soil Mechanics and Vehicle Dynamics
- Integrated Water Resources Management
- Moringa oleifera research and applications
Universidade Federal de Viçosa
2013-2025
Universidade Federal de Lavras
2010-2014
Instituto Nacional de Ciência e Tecnologia de Ciência Animal
2013
Universidade Federal do Vale do São Francisco
2009
Texas A&M University
2007
Institute of Animal Science and Pastures
2006
Abstract Silvopastoral system ( SPS ) has been suggested to ensure sustainability in animal production systems tropical ecosystems. The objective of this study was evaluate the productive and nutritive value traits Brachiaria decumbens performance dairy heifers open pasture OP during summer autumn two consecutive years (17th 18th after establishment). Experimental design a randomized complete block with treatments three replications subdivided plots repeated measures time. There reduction...
A comparative slaughter trial was conducted with 36 F1 Nellore x Red Angus calves (12 steers, 12 bulls, and heifers), averaging 274 kg of BW, to assess the net requirements protein energy for growth maintenance. Three cattle from each group (i.e., heifers) were slaughtered at beginning determine initial body composition. The remaining randomly assigned 1 3 treatments: maintenance (diet containing 70% DM as corn silage fed 1.2% BW daily) or concentrate 0.75 1.5% daily available ad libitum...
Adoption of silvopasture is increasing, but proper design and management pasture–tree associations required to sustain pasture productivity. Our objective was compare agronomic physiological characteristics Brachiaria brizantha (Hochst. Ex A.Rich.) Stapf. (palisade grass) cv. Marandu growing in monoculture, or with Eucalyptus urograndis, the Brazilian Amazon biome. Trees were planted triple rows (intra-row spacing 3 m, inter-row 3.5 m), referred as a grove, three groves per 2-ha experimental...
The aim of this study was to determine the optimal combination regrowth age and residue height BRS Capiaçu elephant grass that yields best balance between dry mass production (DMP) harvested forage silage quality. Four ages (75, 90, 105, 120 days) two heights (10 50 cm) were evaluated. experimental design used a randomized complete block with 4 × 2 factorial scheme 3 replicates. led linear increase in DMP. As advanced, there increases matter (DM) concentration, cell wall constituents,...
Abstract Aboveground biomass (AGB) data are important for profitable and sustainable pasture management. In this study, we hypothesized that vegetation indexes (VIs) obtained through analysis of moderate spatial resolution satellite (Landsat‐8 Sentinel‐2) meteorological can accurately predict the AGB Brachiaria (syn. Urochloa ) pastures in Brazil. We used field from between 2015 2019 four distinct regions Brazil to evaluate (i) relationship three different VIs—normalized difference index...
Abstract To meet the expected demand for food while protecting animal welfare, environmental sustainability, and profitability, production efficiency must improve. Improvements in grazinglands management techniques can impact livestock efficiency. The current stage of artificial intelligence development, mainly machine learning techniques, remote sensing (RS), precision agriculture technologies, automatizes data collection raises monitoring capacity to support on‐farm decision‐making. This...
Objetivou-se avaliar a influência do peso vivo de novilhas sobre o consumo e digestibilidade da MS, MO, EE, PB, fibra em detergente neutro corrigida para cinzas proteína (FDNcp) carboidratos não-fibrosos corrigidos (CNFcp), os consumos NDT degradada no rúmen (PDR), produção microbiana excreção compostos nitrogenados na urina comparar as metodologias coleta spot total urina. Foram utilizadas 22 com cinco diferentes pesos (523, 453, 315, 235 118 kg), distribuídas delineamento inteiramente...
Objetivou-se avaliar o efeito do nível de produção leite sobre consumo e a digestibilidade dos nutrientes (MS, MO, EE, PB, FDNcp CNF corrigidos), NDT, proteína microbiana excreção compostos nitrogenados na urina. Foram avaliadas as concentrações N uréico no soro (NUS) (NUL) animais diferentes níveis leite. comparadas metodologias coletas urina spot total para quantificação fluxo microbiano. Quinze vacas holandesas foram alocadas em delineamento inteiramente casualizado, com três tratamentos,...
One of the main challenges using a silvopastoral system (SPS) is maintaining pasture and animal productivity over time. Our objective was to compare productive characteristics nutritive value signal grass (Brachiaria decumbens cv. Basilisk) liveweight gain dairy heifers in SPS open (OP, under full sunlight) during rainy seasons four experiments between 2003 2016, which characterised systems from their 6th 19th years after establishment south-eastern Brazil when analysed together. The...
Abstract Our objective was to compare herbage accumulation and nutritive value of Urochloa decumbens (Stapf) R. Webster managed under pre‐grazing canopy light interception (LI) targets 90%, 95% 100% in silvopastoral system (SPS) open pasture (OP; U. full sunlight) establish a target for SPS ~43% shade. The evaluations were made during two rainy seasons one dry season. total lower than OP at all LI seasons. However, the difference between reduced when harvested LI, with reductions 20% 28%...
Avaliaram-se o consumo e as digestibilidades aparentes totais dos nutrientes ganho de peso bovinos corte recebendo dietas contendo concentrado silagem Brachiaria brizantha cv. Marandu nas seguintes proporções: 20:80, 35:65, 50:50 65:35, com base na matéria seca. Foram utilizados vinte quatro animais castrados Holandês x Zebu, vivo inicial médio 364 kg, distribuídos em um delineamento blocos casualizados. Por ocasião da ensilagem, procedeu-se tratamento do capim inoculante enzimo-bacteriano...
Avaliaram-se a produção e o valor nutritivo do capim-coastcross (Cynodon dactylon) sob cinco doses de nitrogênio - 0, 100, 200, 300 400kg/ha.ano duas idades rebrotação 28 42 dias. Os tratamentos foram arranjados em esquema fatorial, blocos ao acaso, com três repetições. A adubação (N) foi parcelada aplicações, realizadas logo após os cortes. densidade populacional perfilhos apresentou padrão resposta quadrático à aplicação N. forragem variou 8,0 17,2t/ha.ano para as 0 N, apresentando linear...
Avaliaram-se o consumo, desempenho e a digestibilidade de dietas contendo diferentes grãos oleaginosas em novilhos zebuínos confinamento. Utilizaram-se 30 com peso vivo inicial 388,0±37,5 kg, distribuídos delineamento inteiramente casualizado. As foram formuladas silagem milho quatro concentrados: um sem suplementação lipídeos três inclusão grão soja, caroço algodão ou semente linhaça. rações, isonitrogenadas, apresentaram relação concentrado:volumoso 60:40 fornecidas à vontade. Para...
Este trabalho foi desenvolvido a partir de dois experimentos. No primeiro, avaliaram-se o pH, relação nitrogênio amoniacal/nitrogênio total (N-NH3/Ntotal), composição química e digestibilidade in vitro da matéria seca (DIVMS) silagens milho produzidas ou não com inoculantes enzimo-bacterianos, utilizando-se silos laboratoriais. Adotou-se um arranjo fatorial 6 x 3, composto por seis períodos fermentação (1, 7, 14, 28 56 dias) três (um controle comerciais), em delineamento inteiramente...
Two trials were conducted to evaluate the effects of dietary NPN levels on animal performance, diet digestibility, ruminal characteristics, and microbial efficiency. Experiment 1 was with 24 Holstein x Nellore crossbred steers (350 +/- 20 kg BW) distributed in 6 blocks intake digestibility nutrients performance. The diets consisted 70% corn silage 30% concentrate (DM basis) formulated contain 12.5% CP basis). Treatments 0, 15.5, 31, 46.5% N as NPN. There no treatment differences daily...