Agroforestry livestock feeding systems in tropical America. T. Clavero*1 and J. Iglesias2, 1Facultad de Agronomia, Universidad del Zulia, Maracaibo, Zulia, Venezuela, 2Estacion Experimental Indio Hatuey, Matanzas, Cuba.
Use of limpograss (Hemarthria altissima) in cow-calf grazing systems in southern Florida. J. D. Arthington*, University of Florida-IFAS, Range Cattle Research and Education Center, Ona.
Managing tropical forages: production, environmental benefits and risks. B. C. Pengelly* and J. G. McIvor, Agricultural Landscapes, CSIRO Sustainable Ecosystems, St Lucia, Qld, Australia.
SYMPOSIUM Horse Species Recent Advances in Understanding Metabolic Disorders in Horses Chair: Sarah Ralston, Rutgers University Sponsor: Blue Seal Feeds 207 A
T h e i m p a c t o f v a r i a b i l i t y i n p a s t u r e f o r a g e s o n h o r s e m e t a b o l i s m . B . M c I n t o s h * 1 , 2 , D . K r o n f e l d 1 , R . G e o r 1 , W . S t a n i a r 1 , P . H a r r i s 3 , a n d D . W a r d 4 , 1 V i r g i n i a P o l y t e c h n i c a n d S t a t e U n i v e r s i t y , B l a c k s b u r g , 2 B l u e S e a l F e e d s I n c . , L o n d o n d e r r y WALTHAM Centre for Pet Nutrition, Melton Mowbray, United Kingdom, 4Rutgers University, Bridgeton, NJ. , N H , 3
Advances in diagnosis and management of equine polysaccharide storage myopathy (PSSM). M. E. McCue*, S. J. Valberg, and J. R. Mickelson, University of Minnesota, St. Paul.
Management of obesity and insulin resistance in horses. R. J. Geor*, R. A. Carter, and K. H. Treiber, Virginia Polytechnic and State University, Middleburg.
Characterization of the utilization of trans octadecenoic acids in lactating dairy cows. C. Tyburczy*1, A. L. Lock1, D. A. Dwyer1, F. Destaillants2, Z. Mouloungui3, L. Candy3, and D. E. Bauman1, 1Cornell University, Ithaca, NY, 2Nestle Research Center, Lausanne, Switzerland, 3Laboratoire de Chimie Agro-Industrielle, Toulouse, France.
Expression of lipogenic genes in adipose tissue increases during milk fat depression induced by treatment with trans-10, cis-12 conjugated linoleic acid (CLA). K. J. Harvatine*, D. A. Dwyer, and D. E. Bauman, Cornell University, Ithaca, NY.
The relationship between trans-10 18:1 and milk fat yield in cows fed high oleic acid or high linoleic acid plant oil supplements. T. Hinrichsen1, A. L. Lock*2, and D. E. Bauman2, 1Royal Veterinary & Agricultural University, Denmark, Cornell University, Ithaca, NY.
In vivo treatment with xanthosine expands the mammary stem cell population. A. V. Capuco*1, C. M. Evock-Clover1, D. L. Wood1, and A. Minuti2, 1Bovine Functional Genomics Laboratory, USDA-ARS, Beltsville, MD, 2Institute of Zootechnics, Catholic University, Piacenza, Italy.
Prepubertal nutrition effects on bovine mammary parenchyma and fat pad gene expression profiles. P. Piantoni*1, D. Graugnard1, K. M. Daniels2, R. E. Everts1, S. L. Rodriguez-Zas1, H. A. Lewin1, R. M. Akers2, and J. J. Loor1, 1University of Illinois, Urbana, 2Virginia Polytechnic and State University, Blacksburg.
Mammary gland expression of cell cyle, apoptosis, and immune response genes accompany progression through a prolonged lactation cycle. D. L. Hadsell*, D. Torres, and M. S. Bray, Baylor College of Medicine, Houston TX.
SOCS3 and STAT3 are up-regulated and STAT5 down-regulated during induced involution of the bovine mammary gland. K Singh*, M Prewitz, J Dobson, and K Stelwagen, AgResearch Ltd, Ruakura Research Centre, Hamilton, New Zealand.
MammOmics™: transcript profiling of the mammary gland during the lactation cycle in Holstein cows. M. Bionaz*, S. L. Rodriguez-Zas, R. E. Everts, H. A. Lewin, and J. J. Loor, University of Illinois, Urbana.
Lactation Biology Metabolism and Gene Expression in Support of Lactation Chair: Feng-Qi Zhao, University of Vermont 205