- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Animal health and immunology
- Liver Disease Diagnosis and Treatment
- Effects of Environmental Stressors on Livestock
- Muscle metabolism and nutrition
- Diet and metabolism studies
- Meat and Animal Product Quality
- Fatty Acid Research and Health
- Diet, Metabolism, and Disease
- Veterinary medicine and infectious diseases
- Adipose Tissue and Metabolism
- Mass Spectrometry Techniques and Applications
- Metabolism and Genetic Disorders
- Metabolism, Diabetes, and Cancer
- Pharmacological Effects and Assays
- Antibiotics Pharmacokinetics and Efficacy
- Milk Quality and Mastitis in Dairy Cows
- Immune Cell Function and Interaction
- Birth, Development, and Health
- Toxin Mechanisms and Immunotoxins
- Biopolymer Synthesis and Applications
- Natural Products and Biological Research
- Analytical Chemistry and Chromatography
Iowa State University
1994-2008
Genentech
2007
Cornell University
1991-2001
Ames National Laboratory
1995-2000
Swedish University of Agricultural Sciences
2000
U.S. Dairy Forage Research Center
2000
Pfizer (United States)
1998
Secretariat of Agriculture, Livestock, Rural Development, Fisheries and Food
1996
Experimental Station
1994-1995
National Animal Disease Center
1992-1995
The objective of this study was to investigate the relationship between activation acute phase response and fatty liver in transition dairy cows. Fatty induced cows by feeding 8 kg cracked corn 1 mo before expected day parturition. Liver blood samples were obtained at days -4, 3, 8, 12, 14, 22, 27, 36 postpartum. Cows that developed (n = 4) reached peak total lipids 12 postpartum with 11.4% (wet wt.) compared 6.6% control 4). had greater plasma tumor necrosis factor-alpha (TNF-α),...
1. Solutions containing acetate, [2-14C]propionate and butyrate were placed into the ruminoreticulum of calves to measure extent which propionate is metabolized by epithelium. In response five different combinations pH total volatile fatty acid concentrations, absorption rates ranged from 89 341mmol/h. 2. The conversion lactate, calculated both concentration specific radioactivity in portal arterial blood, averaged 4.9 (range 2.5–9.1)%. 3. Circulating glucose synthesized had a higher than...
Two Brown Swiss and two Holstein steers, average weight of 226 kg, were fasted 8 d. days before the fast, jugular vein catheters installed. Blood samples collected every 15 min from 0800 to 1400 h on d 0, 2, 5 fasting. Plasma each sample was analyzed for concentrations growth hormone, selected insulin, glucagon, glucose, beta-hydroxybutyrate, free fatty acids, urea N glycerol. Both hormone insulin decreased by 2 fast remained at that concentration. Glucagon, however, constant. From 0 acids...