Robert J. Collier, Laun W. Hall, Xavier A. Ortiz, Sean D. Anders’
University of Arizona, Animal Sciences Department
Increasing world population growth and its associated demand on food production coupled with the growing scarcity of clean water and global climate warming trends dictate that modern agricultural practices include a sustainability component. In other words, any new technologies adopted must not only increase food production but must do so with less energy consumed and less waste byproducts produced. Objectives of this presentation will be to provide 3 examples in the areas of improving environmental management technologies for livestock, increasing production of cereal grains in plants and increasing milk yield in cattle. Examples of how these technologies reduce consumption of the primary resources of water, energy and carbon will be provided. In addition a review of the human and animal safety associated with the use of recombinant bovine somatotropins for the dairy industry will be provided. This will include updates on the impact of bovine somatotropin use in the United States and the occurrence of antimicrobial contamination of milk, milk quality and milk hormone concentrations, adverse experience reports to the FDA and removal of cows from dairy herds. Collectively, these data demonstrate that use ofSomatech® bovine somatotropin for the last 19 years has had no measureable impact on cow health, milk quality or human safety. Finally, a discussion of new genetic tools available to dairy producers which will increase the rate of genetic gain in dairy herds will be presented.
Dr. Collier is a former Animal Sciences Department head who has had a distinguished career in the field of dairy sciences. Prior to joining the University of Arizona in 1999, he worked as a professor of dairy science at the University of Florida and was also the Dairy Research Director for the Monsanto Company. Currently Dr. Collier teaches undergraduate courses and conducts research in the fields of environmental physiology with a focus on the dairy industry. Research Interests Environmental Physiology The focus of this laboratory is in studying environmental effects on gene expression in domestic animals. Research program utilizes both practical management models as well as controlled environmental facilities to modify environments around animals. Environmental effects on gene expression are then evaluated using gene expression microarrays, real time PCR and northern blots. Domestic animals of interest include dairy and beef cattle, horses, sheep and goats. Selected Publications Annen EL, Collier RJ, McGuire MA, Vicini JL, Ballam JM, Lormore MJ. Nov 2004. Effect of modified dry period lengths and bovine somatotropin on yield and composition of milk from dairy cows. J Dairy Sci, 87:3746-61 Collier RJ, Annen EL, Fitzgerald AC. Nov 2004. Prospects for zero days dry. Vet Clin North Am Food Anim Pract, 20:687-701 Collier, R.J., and D Romagnolo.. 2002. Lactation (f) Galactopoiesis/Seasonal Effects. H. Roginski, J.W. Fuquay and P.F. Fox. Encyclopedia of Dairy Sciences.. Academic Press. Keister ZO, Moss KD, Zhang HM, Teegerstrom T, Edling RA, Collier RJ, Ax RL. Dec 2002. Physiological responses in thermal stressed Jersey cows subjected to different management strategies. J Dairy Sci, 85:3217-24 Collier Lab Jayne Collier -Research Specialist Senior Collier Lab Agricultural Research Center Phone: 520-626-3572 Fax: 520-621-9435Phone: (520) 621-7622 E-Mail: email@example.com Degrees Ph.D., University of Illinois M.S., Eastern Illinois University B.S., Eastern Illinois University Classes Taught ANS 215 Anatomy & Physiology of Domestic Animals
Dr. Robert Collier Professor Office: Shantz Building 236 Phone: (520) 621-7622 E-Mail: firstname.lastname@example.org Degrees Ph.D., University of Illinois M.S., Eastern Illinois University B.S., Eastern Illinois University Classes Taught ANS 215 Anatomy & Physiology of Domestic Animals