A5041863238- Ruminant Nutrition and Digestive Physiology
- Clostridium difficile and Clostridium perfringens research
- Reproductive Physiology in Livestock
- Milk Quality and Mastitis in Dairy Cows
- Gut microbiota and health
- Microbial infections and disease research
- Animal Behavior and Welfare Studies
- Genetic and phenotypic traits in livestock
- Mycobacterium research and diagnosis
- Animal health and immunology
- Gastrointestinal disorders and treatments
- Veterinary Practice and Education Studies
- Digestive system and related health
- Animal and Plant Science Education
- Veterinary Equine Medical Research
- Veterinary medicine and infectious diseases
- Agriculture and Farm Safety
- Plant and fungal interactions
- Streptococcal Infections and Treatments
- Pharmaceutical and Antibiotic Environmental Impacts
- Pediatric health and respiratory diseases
- Coccidia and coccidiosis research
- Rabbits: Nutrition, Reproduction, Health
- Effects of Environmental Stressors on Livestock
- Pharmacological Effects of Natural Compounds
Cornell University
2013-2021
New York State College of Veterinary Medicine
2013-2020
University of California, Davis
2018
Universidade Brasil
2010
Universidade de São Paulo
2010
In this study, we use barcoded pyrosequencing of the 16S rRNA gene to characterize fecal microbiota neonatal calves and identify possible relationships certain profiles with health weight gain. Fecal samples were obtained weekly from 61 birth until weaning (seventh week calves' life). Firmicutes was most prevalent phylum, a prevalence ranging 63.84% 81.90%, followed by Bacteroidetes (8.36% 23.93%), Proteobacteria (3.72% 9.75%), Fusobacteria (0.76% 5.67%), Actinobacteria (1.02% 2.35%). Chao1...
The objective of this study was to use pyrosequencing the 16S rRNA genes describe microbial diversity bovine milk samples derived from clinically unaffected quarters across a range somatic cell counts (SCC) values or clinical mastitis, culture negative quarters. obtained microbiota profiles were used distinguish healthy, subclinically and affected Two dairy farms for collection samples. A total 177 used. Fifty with SCC less than 20,000 cells/ml (group 1); 34 quarters, ranging 21,000 50,000...
Probiotics are a promising alternative to improve food animal productivity and health. However, scientific evidence that specific microbes can be used benefit health performance is limited. The objective of this study was evaluate the effects administering live culture Faecalibacterium prausnitzii newborn dairy calves on subsequent growth, health, fecal microbiome. Initially, safety trial conducted using 30 bull assess potential adverse oral rectal administration F. neonatal calves. No...
In this study we evaluate the efficacy of five vaccine formulations containing different combinations proteins (FimH; leukotoxin, LKT; and pyolysin, PLO) and/or inactivated whole cells (Escherichia coli, Fusobacterium necrophorum, Trueperella pyogenes) in preventing postpartum uterine diseases. Inactivated were produced using two genetically distinct strains each bacterial species (E. F. T. pyogenes). FimH PLO subunits recombinant protein expression, LKT was recovered from culturing a wild...
The goal of our study was to isolate and characterize Faecalibacterium prausnitzii from fecal samples healthy calves piglets, in order develop a novel probiotic for livestock animals. We identified 203 isolates sp., which were clustered 40 genetically distinct groups. One representative each cluster selected further characterization. concentrations the short chain fatty acids (SCFA) acetate, butyrate, propionate isobutyrate culture media measured by gas chromatography. observed reduction...
Although antimicrobial drugs are central to combat disease in modern medicine, the use of these can have undesired consequences for human and animal health. One consequence is post-therapy excretion pharmacological agents, such as elimination drug residues at very low concentrations milk lactating mammals. Limited information currently available on impact from exposure gut microbiota using vivo natural models. The objective our study was address this knowledge gap evaluate effect fecal...
The main objectives of this prospective cohort study were a) to describe lameness prevalence at drying off in large high producing New York State herds based on visual locomotion score (VLS) and identify potential cow herd level risk factors, b) develop a model that will predict the probability developing claw horn disruption lesions (CHDL) subsequent lactation using variables collected and/or available from farm management software. Data 23 commercial dairy farms located upstate York. A...
Understanding farmers' behavior, motivations, and perceptions toward antimicrobial use can influence how veterinarians translate research into practice guide effective ways of implementing protocols. A multidisciplinary team investigated behavioral tendencies New York dairy farmers by administering a survey modeled with the reasoned action approach. This approach is framework from social psychology containing constructs attitude, perceived norms, control, used in combination structural...
Feeding drug residue-containing milk to calves is common worldwide and no information currently available on the impact functional profile of fecal microbiota. Our objective was characterize microbiota preweaned dairy fed raw with residual concentrations antimicrobials commonly found in waste from birth weaning. Calves were assigned a controlled feeding trial being residues or antibiotic residues. Fecal samples collected each calf once week starting at birth, prior first trial, until 6 weeks...
The increasing concerns with antimicrobial resistance highlights the need for studies evaluating impacts of use in livestock on using new sequencing technologies. Through shotgun sequencing, we investigated changes fecal microbiome composition and function, a focus functions related to resistance, dairy calves. Heifers 2 3 weeks old, which were not treated antibiotics by farm before enrollment, randomly allocated one three study groups: control (no treatment), single treatment enrofloxacin,...
Abstract The objective of this study was to evaluate the longitudinal effect enrofloxacin or tulathromycin use in calves at high risk bovine respiratory disease (BRD) on antimicrobial resistance genes and mutation quinolone resistance-determining regions (QRDR) fecal E. coli . Calves developing BRD were randomly enrolled one three groups receiving: (1) (ENR; n = 22); (2) (TUL; 24); (3) no treatment (CTL; 21). Fecal samples collected enrollment 7, 28, 56 days after beginning treatment,...
Professionals in animal agriculture promote prudent use of antimicrobials to address public and health concerns, such as reduction antimicrobial residues resistance (AMR) products. Few studies evaluate the effect selective dry-cow therapy on preservation milk microbiome or profile AMR genes (the resistome) present at freshening. Our objectives were characterize compare microbiomes resistomes colostrum cows with low somatic cell count that treated not intramammary cephapirin benzathine...
O objetivo deste trabalho foi avaliar a utilização de diferentes fontes gordura nas rações vacas em lactação e seus efeitos sobre o consumo matéria seca as concentrações dos parâmetros sangüíneos. Foram utilizadas 12 da raça Holandês, agrupadas três quadrados latinos balanceados 4x4 alimentadas com seguintes rações: 1) controle; 2) óleo soja refinado; 3) grão in natura; 4) sais cálcio ácidos graxos (Megalac-E). As colesterol total, colesterol, lipoproteína baixa densidade (LDL) alta (HDL)...
Abstract The increasing concerns with antimicrobial resistance highlights the need for studies evaluating impacts of use in livestock on using new sequencing technologies. Through shotgun sequencing, we investigated changes fecal microbiome composition and function, a focus functions related to resistance, dairy calves. Heifers 2 3 weeks old, which were not treated antibiotics by farm before enrollment, randomly allocated one three study groups: control (no treatment), enrofloxacin, or...
Targeted communication concerning the judicious use of antimicrobials is vital to address public health concerns such as residues and resistance. Understanding dairy farmers’ behavior, motivations, barriers toward antimicrobial can influence how veterinarians translate research into practice guide effective ways implementing protocols. A multidisciplinary team investigated behavioral tendencies by administering a survey modeled with Reasoned Action Approach (RAA). The RAA framework from...