A5026704782- Milk Quality and Mastitis in Dairy Cows
- Growth Hormone and Insulin-like Growth Factors
- Reproductive Physiology in Livestock
- Animal Genetics and Reproduction
- Digestive system and related health
- Genetic and phenotypic traits in livestock
- Infant Nutrition and Health
- Cancer Cells and Metastasis
- Effects of Environmental Stressors on Livestock
- Breastfeeding Practices and Influences
- Ruminant Nutrition and Digestive Physiology
- Meat and Animal Product Quality
- Estrogen and related hormone effects
- Metabolism, Diabetes, and Cancer
- Animal Behavior and Welfare Studies
- Cancer Risks and Factors
- Neonatal Respiratory Health Research
- Probiotics and Fermented Foods
- Fatty Acid Research and Health
- Protein Hydrolysis and Bioactive Peptides
- Infant Health and Development
- Adipose Tissue and Metabolism
- Neuroendocrine regulation and behavior
- TGF-β signaling in diseases
- Wnt/β-catenin signaling in development and cancer
Virginia Tech
2014-2023
Carolinas Medical Center
2010
National Institutes of Health
1999
AgResearch
1998
Michigan State University
1977-1995
Sensor Electronics (United States)
1991
United States Department of Agriculture
1984-1991
Virginia–Maryland College of Veterinary Medicine
1991
Videometer (Denmark)
1991
Beltsville Agricultural Research Center
1982-1990
Abstract Milk production is a primary factor controlling weaning weight of beef calves. The purpose this experiment was to develop practical and reliable on-farm method estimating milk relate estimates composition preweaning gain A second objective postpartum ovarian activity. spring- fall-calving grade Angus cows estimated by machine milking (MM; average 66, 123 189 d postpartum) weigh-suckle-weigh (WSW; 50, 95, 136 179 techniques following overnight calf removal. Cows calves were weighed...
Hormonal control of α-lactalbumin secretion was studied in mammary tissue obtained from nonlactating multiparous Holstein cows pregnant approximately 8 months. Mammary explants were incubated for 72 h medium containing insulin, T3 and various combinations or concentrations PRL, cortisol, progesterone, 17β-estradiol, GH. Concentrations ofα-lactalbumin the homogenates measured by RIA sodium dodecyl sulfate-gel electrophoresis as an index lactogenesis. Increasing quantities PRL (25 to 100...
The acute temporal effects of exogenous oestradiol (0.1 mg/kg per day), progesterone (0.25 day) or both together on the proliferative response epithelial cells, fibroblasts, adipocytes and endothelial cells in mammary tissue prepubertal cross-bred heifers were determined. Mammary biopsies taken immediately before, then 24, 48 96 h after initiation daily administration hormones to three treatment group. Incorporation [3H]thymidine into explants prepared from was evaluated a 1-h incubation by...
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...