A5066907973- Ruminant Nutrition and Digestive Physiology
- Genetic and phenotypic traits in livestock
- Reproductive Physiology in Livestock
- Effects of Environmental Stressors on Livestock
- Agriculture Sustainability and Environmental Impact
- Animal Nutrition and Physiology
- Meat and Animal Product Quality
- Animal health and immunology
- Agroforestry and silvopastoral systems
- Milk Quality and Mastitis in Dairy Cows
- Soil Management and Crop Yield
- Animal Behavior and Welfare Studies
- Muscle metabolism and nutrition
- Natural Products and Biological Research
- Livestock Management and Performance Improvement
- Phytase and its Applications
- Pasture and Agricultural Systems
- Rural Development and Agriculture
- Odor and Emission Control Technologies
- Birth, Development, and Health
- Gut microbiota and health
- Growth Hormone and Insulin-like Growth Factors
- Sugarcane Cultivation and Processing
- Biodiesel Production and Applications
- Infant Nutrition and Health
Washington State University
2021-2025
William H Miner Agricultural Research Institute
2024
Universidade Federal de Viçosa
2013-2022
University of Florida
2020-2021
Texas A&M University
2011-2015
Instituto Nacional de Ciência e Tecnologia de Ciência Animal
2012
National Council for Scientific and Technological Development
2005-2011
Fundação de Amparo à Pesquisa do Estado de Minas Gerais
2011
Mitchell Institute
2011
Microbial communities play critical roles in the gastrointestinal tracts (GIT) of preruminant calves by influencing performance and health. However, little is known about establishment microbial calf GIT or their dynamics during development. In this study, next-generation sequencing was used to assess changes bacterial rumen, jejunum, cecum, colon 26 crossbred at four developmental stages (7, 28, 49, 63 days old). Alpha diversity differed among regions with lowest evenness whereas no alpha...
The aim was to evaluate the effect of different feed additives on intake, performance, and fecal consistency index (FCI) dairy calves from 6-60 d age its residual 15 after weaning. Fifty Holstein (38 ± 1.0 kg BW) were fed 5 L/d milk plus starter until weaning, corn silage concentrate treatments were: control (CON), monensin (MON; 30 mg/kg starter), probiotic E. faecium (PROB; 70 essential oils (EO; 300 or PROB + EO (EOPROB). Fecal score dry matter intake (DMI) measured daily, animals weighed...
Latin America and Caribbean (LAC) is a developing region characterized for its importance global food security, producing 23 11% of the beef milk production, respectively. The region's ruminant livestock sector however, under scrutiny on environmental grounds due to large contribution enteric methane (CH4) emissions influence climate change. Thus, identification effective CH4 mitigation strategies which do not compromise animal performance urgently needed, especially in context Sustainable...
At birth, calves display an underdeveloped rumen that eventually matures into a fully functional as result of solid food intake and microbial activity. However, little is known regarding the gradual impact pre-weaning diet on establishment microbiota. Here, we employed next-generation sequencing to investigate effects inclusion starter concentrate (M: milk-fed vs. MC: milk plus fed) archaeal, bacterial anaerobic fungal communities in rumens 45 crossbred dairy across development (7, 28, 49,...
An experiment was carried to evaluate the energy and protein requirements for growth maintenance of lambs different sex classes. In all, 38 hair (13.0±1.49 kg initial BW 2 months old) were allocated in a factorial design with diet restriction levels (ad libitum, 30% 60% feed restriction) classes (castrated non-castrated males). Four animals from each class slaughtered at beginning trial as reference group estimate empty body composition. The remaining weighed weekly calculate gain (BWG),...
The improved growth performance of calves at weaning results from an effective pre-weaning feeding strategy. type and pasteurization process liquid feed are among the most variable practices affecting calves' health. In previous studies that compared waste milk (WM) vs. replacer (MR), little consideration has been given to variations in chemical composition behavior between them, there a lack justification for crude protein: metabolizable energy (CP:ME) ratio adopted. Hence, this study aimed...
Foram conduzidos dois experimentos com o objetivo de avaliar os indicadores internos fibra em detergente neutro indigestível (FDNi) e ácido (FDAi), obtidos por incubação in situ durante seis dias, externos óxido crômico (Cr2O3), dióxido titânio (TiO2) lignina isolada, purificada enriquecida (LIPE®) esquemas coleta total fezes (3 ou 5 dias) para estimativa da digestibilidade bovinos. O delineamento experimental foi blocos ao acaso parcelas subdivididas. No primeiro experimento, foram...
Twenty-six comparative slaughter studies were used (n = 752 animals) and coded within each experiment by gender (431 bulls, 204 steers, 117 heifers) breed (447 Nellore 305 Bos indicus taurus crossbreds) to develop equations predict the efficiency of use ME NE for growth (kg) maintenance (km). The retained energy (RE) was regressed on intake (MEI) available gain using orthogonal regression obtain kg experiment. estimated RE as protein (REp) according following equation: a/(b + REp). Gender...
The objective of this experiment was to assess ruminal outflow and apparent total-tract digestibility using digesta samples from 3 sites (reticulum, omasum, abomasum) marker methods (single marker: indigestible NDF [iNDF; sample without separation]; double iNDF + Co-EDTA [filtered sample]; triple ytterbium [Yb] acetate centrifuged]) in bulls fed corn silage sugarcane-based diets. Eight crossbred (Holstein × Zebu) (353 ± 37 kg BW; 24 1 mo age) with abomasal cannulas were randomly distributed...
The objective of this study was to determine the apparent and true intestinal digestibility total individual AA, estimate efficiency whole-body AA retention from absorbed AA. Four Nellore animals (241.3 kg initial BW) four crossbred Angus × (263.4 cannulated in rumen ileum were randomly allocated two 4 Latin squares. experiment lasted 17 d periods, with 10 for adaptation diets another 7 data collection. consisted increasing CP levels: 100, 120, or 140 g/kg DM offered ad libitum, restricted...
This study was conducted to evaluate the development of mammary gland in Holstein heifers subjected different dietary metabolisable protein (MP): energy (ME) ratios. Twenty-five (initial body weight (BW) 213±13·5 kg and initial average age 7·8±0·5 months) were divided into five treatments. The treatments designed provide MP:ME ratios equal 33, 38, 43, 48, 53 g MP per Mcal ME. All diets formulated have same content (2·6 ME/kg dry matter). Actual 36·2, 40·2, 46·2, 47·1, 50·8 MP/Mcal experiment...
The use of compost bedded pack systems (CBS) has increased over the past 5 years in tropical countries, and studies associating production traits with economical outcomes this system are warranted. Our objectives were to evaluate productive traits, economic risks losses dairy farms that switched from a drylot (DLS) CBS compare these similar did not change their system. We collected data 18 36 consecutive months (August 2014 July 2017). All started study as DLS, six second year. other 12 kept...