A5035572850- Meat and Animal Product Quality
- Genetic and phenotypic traits in livestock
- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Animal Nutrition and Physiology
- Fatty Acid Research and Health
- Adipose Tissue and Metabolism
- Vitamin D Research Studies
- Animal health and immunology
- Mycobacterium research and diagnosis
- Effects of Environmental Stressors on Livestock
- Cholesterol and Lipid Metabolism
- Liver Disease Diagnosis and Treatment
- Pharmacological Effects and Assays
- Cancer-related molecular mechanisms research
- Regulation of Appetite and Obesity
- Lipid metabolism and biosynthesis
- Diet and metabolism studies
- Animal Behavior and Welfare Studies
- Milk Quality and Mastitis in Dairy Cows
- Muscle metabolism and nutrition
- Peroxisome Proliferator-Activated Receptors
- Effects and risks of endocrine disrupting chemicals
- Biochemical Analysis and Sensing Techniques
- Animal Genetics and Reproduction
Iowa State University
2015-2024
Nielsen Engineering & Research (United States)
2018
Ames National Laboratory
1993-2014
Cambridge University Press
2011
New York University Press
2011
Institute of Molecular Biology and Biophysics
2006-2010
Animal Science Research Institute
2008
South Dakota State University
2007
Nutritional Research Foundation
2007
National Animal Disease Center
1981-1995
Current analytical methods for milk proteins lack the capacity to simultaneously separate and quantify six major bovine their genetic variants. A method is described that separates quantifies proteins. The separation based on reversed-phase partitioning of several variants kappa-casein, beta-casein, beta-lactoglobulin. has each a linear quantitative response, precision (coefficient variation below 5.1% within days analysis, 7.1% between analysis), resolution (over 2.5 proteins), peak...
Dairy products from milk of cows fed diets rich in polyunsaturated fatty acids have a more health-promoting acid composition and are softer but often oxidized flavors. made cow's that has more- or less-unsaturated compositions were tested for differences texture flavor those bulk-tank milk. The was manufactured into butter, vanilla ice cream, yogurt, Provolone cheese, Cheddar cheese. analyzed composition, physical properties, flavor. Milk with monounsaturated yielded had satisfactory Thus,...
Forty crossbred steers of similar birth date and fed the same growing-finishing diet were used to study adipocyte changes in six fat depots during growth from 11 19 mo age. Steers slaughtered at 2-mo intervals. Adipose tissue samples obtained kidney, mesenteric brisket subcutaneous, intermuscular intramuscular 10th 12th rib section. The osmium tetroxide fixation technique was for determination cell size number. Except three samples, distributions diameters different monophasic age range...
Abstract Inheritance of mitochondrial DNA (mtDNA) in Holstein cattle was characterized by pedigree analysis nucleotide sequence variation. mtDNA purified from leukocytes 174 individuals representing 35 independent maternal lineages, and analyzed for variation characterization restriction fragment length polymorphism direct determination. These data revealed 11 lineages which some seemingly were homoplasmic the reference at 364, whereas those other a variant this position. Both alternative...
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),...
A small, anaerobic, gram-positive coccobacillus that reduces cholesterol to coprostanol was isolated from a hog sewage lagoon. This isolate, strain HLT (T = type strain) does not require for growth, but it requires lecithin and has phospholipase activity. Much acid is produced by the fermentation of amygdalin, lactose, salicin. Arabinose, cellobiose, fructose, glucose, mannose, melibiose are fermented weakly. Acetic, formic, succinic acids produced, as hydrogen. The isolate reduce nitrate,...
Summary The objective of this study was to identify single nucleotide polymorphisms (SNPs) in the thioesterase ( TE ) domain bovine fatty acid synthase FASN gene and evaluate extent which they were associated with beef composition. four exons that encode for sequenced, three SNPs, AF285607:g.17924A>G, g.18663T>C g.18727C>T, identified. Purebred Angus bulls n = 331) classified into genotype groups, g.17924AA 121), g.17924AG 168) g.17924GG 42). g.17924A>G significantly composition...
The objective of this project was to determine the contribution lipid content textural and sensory properties fresh pork within defined pH classifications. Pigs (n = 1,535; from 248 sires 836 dams) 1991, 1992, 1994 National Barrow Show Sire Progeny Test were used in study. test included purebred Berkshire (107), Chester White (113), Duroc (249), Hampshire (220), Landrace (165), Poland China (101), Spotted (181), Yorkshire (399) barrows (901) gilts (634). Diets uniform across breeds test....
Light and 02 are essential for a rapid bleaching of the pigment system broadleaf bean by paraquat (1,1-dimethyl-4,4-dipyridylium dichloride).This does not appear to be directly related physiological activity but destruction protective which normallY prevents photo- oxidation.Light, 02., is also changes in membrane permeability brought about mesquite (Prosopis glandulosa), honeysuckle (Lonicera saponica), (Phaseolus vulgaris).Changes temperature dependent.Light essen- tial paraquat's effect...
The objective of this study was to determine the influence beef LM nutrient components on palatability traits and evaluate impact USDA quality grade palatability. Longissimus muscle samples from related Angus cattle (n = 1,737) were obtained fabricated into steaks for trained sensory panel, Warner-Bratzler shear force (WBSF), lipid oxidation measured by thiobarbituric acid reactive substances (TBARS), fatty acid, mineral composition analysis. Pearson phenotypic correlations correlation...
This study’s objective was to determine the effects of increasing dietary added zinc (Zn) on milk production, somatic cell count (SCC), and immunoglobulin antioxidant marker concentrations in blood dairy cows. Twelve Holstein cows (67 ± 2.5 days milk) were assigned randomly (1) a diet containing Zn–methionine at 76 mg/kg DM (CTL) or (2) CTL top-dressed with about 21 extra (+Zn) for 70 d. The reduced (GSH) oxidized (GSSG) glutathione, malondialdehyde (MDA), catalase (CAT), superoxide...
The objective of these experiments was to establish the relationship plasma ghrelin concentrations with feed intake and hormones indicative nutritional state cattle. In Exp.1, 4 steers (BW 450 +/- 14.3 kg) were used in a crossover design compare feed-deprived those allowed consume GH, insulin (INS), glucose (GLU), NEFA. After adaptation once-daily offering (0800), 2 continued feeding schedule (FED), whereas withheld from other (FAST). Serial blood samples collected via indwelling jugular...