Completed research

List of publications based upon sheep from the Cornell Sheep Farm (since 1989)

A. W. Bell, B. W. McBride, R. Slepetis, R. J. Early, and W. B. Currie. Chronic Heat Stress and Prenatal Development in Sheep: I. Conceptus Growth and Maternal Plasma Hormones and Metabolites. J.Anim.Sci. 67 (12):3289-3299, 1989.

D. Metcalf. The molecular control of cell division, differentiation commitment and maturation in haemopoietic cells. Nature 339:27-30, 1989.

A. M. Oberbauer, W. B. Currie, L. Krook, and M. L. Thonney. Endocrine and histologic correlates of the dynamics of the metacarpal growth plate in growing rams. J.Anim.Sci. 67:3124-3135, 1989.

E. Rosemberg, M. L. Thonney, and W. R. Butler. The effects of bovine growth hormone and thyroxine on growth rate and carcass measurements in lambs. J.Anim.Sci. 67:3300-3312, 1989.

P. J. Battista, A. W. Bell, D. R. Deaver, and W. B. Currie. Differential control of placental lactogen release and progesterone production by ovine placental tissue in vitro. Placenta 11 (4):337-348, 1990.

D. H. Beermann, T. F. Robinson, T. M. Byrem, D. H. Hogue, A. W. Bell, and C. L. McLaughlin. Abomasal casein infusion and exogenous somatotropin enhance nitrogen utilization by growing lambs. J.Nutr. 121:2020-2028, 1991.

R. J. Early, B. W. McBride, I. Vatnick, and A. W. Bell. Chronic heat stress and prenatal development in sheep: II. Placental cellularity and metabolism. J.Anim.Sci. 69 (9):3610-3616, 1991.

P. A. Schoknecht, S. N. Nobrega, J. A. Petterson, R. A. Ehrhardt, R. Slepetis, and A. W. Bell. Relations between maternal and fetal plasma concentrations of placental lactogen and placental and fetal weights in well-fed ewes. J.Anim.Sci. 69 (3):1059-1063, 1991.

I. Vatnick, G. Ignotz, B. W. McBride, and A. W. Bell. Effect of heat stress on ovine placental growth in early pregnancy. J.Dev.Physiol. 13:163-166, 1991.

I. Vatnick, P. A. Schoknecht, R. Darrigrand, and A. W. Bell. Growth and metabolism of the placenta after unilateral fetectomy in twin pregnant ewes. J.Dev.Physiol. 15:351-356, 1991.

P. A. Schoknecht, W. B. Currie, and A. W. Bell. Kinetics of placental lactogen in mid- and late-gestation ovine fetuses. J.Endocrinol. 133:95-100, 1992.

I. Vatnick and A. W. Bell. Ontogeny of fetal hepatic and placental growth and metabolism in sheep. Am J Physiol Regul Integr Comp Physiol 263 (3):R619-R623, 1992.

Julie A. Petterson, Frank R. Dunshea, Richard A. Ehrhardt, and Alan W. Bell. Pregnancy and Undernutrition Alter Glucose Metabolic Responses to Insulin in Sheep. J.Nutr. 123 (7):1286-1295, 1993.

A. M. Oberbauer, A. M. Arnold, and M. L. Thonney. Genetically size-scaled growth and composition of Dorset and Suffolk rams. Anim.Prod. 59:223-234, 1994.

J. M. Peralta, A. M. Arnold, W. B. Currie, and M. L. Thonney. Effects of testosterone on skeletal growth in lambs as assessed by labeling index of chondrocytes in the metacarpal bone growth plate. J.Anim.Sci. 72:2629-2634, 1994.

Julie A. Petterson, Ramona Slepetis, Richard A. Ehrhardt, Frank R. Dunshea, and Alan W. Bell. Pregnancy but Not Moderate Undernutrition Attenuates Insulin Suppression of Fat Mobilization in Sheep. J.Nutr. 124 (12):2431-2436, 1994.

R. A. Ehrhardt and A. W. Bell. Growth and metabolism of the ovine placenta during mid-gestation. Placenta 16 (8):727-741, 1995.

A. M. Arnold, J. M. Peralta, and M. L. Thonney. Ontogeny of growth hormone, insulin-like growth factor (IGF)-I, estradiol and cortisol in the growing lamb:  Effect of testosterone. J.Endocrinol. 150 (3):391-399, 1996.

P. A. Schoknecht, M. A. McGuire, W. S. Cohick, W. B. Currie, and A. W. Bell. Effect of chronic infusion of placental lactogen on ovine fetal growth in late gestation. Domes.Anim.Endocrinol. 13 (6):519-528, 1996.

A. M. Arnold, J. M. Peralta, and M. L. Thonney. Effect of testosterone on differential muscle growth and on protein and nucleic acid concentrations in muscles of growing lambs. J.Anim.Sci. 75 (6):1495-1503, 1997.

Alan W. Bell and Dale E. Bauman. Adaptations of Glucose Metabolism During Pregnancy and Lactation. Journal of Mammary Gland Biology and Neoplasia 2 (3):265-278, 1997.

C. de la Rosa, D. E. Hogue, and M. L. Thonney. Vaccination schedules to raise antibody concentrations against e-toxin of Clostridium perfringens in ewes and their triplet lambs. J.Anim.Sci. 75 (9):2328-2334, 1997.

R. A. Ehrhardt and A. W. Bell. Developmental increases in glucose transporter concentration in the sheep placenta. Am J Physiol Regul Integr Comp Physiol 273 (3):R1132-R1141, 1997.

D. M. McNeill, R. Slepetis, R. A. Ehrhardt, D. M. Smith, and A. W. Bell. Protein requirements of sheep in late pregnancy: partitioning of nitrogen between gravid uterus and maternal tissues. J.Anim.Sci. 75 (3):809-816, 1997.

P. L. Greenwood, A. S. Hunt, J. W. Hermanson, and A. W. Bell. Effects of birth weight and postnatal nutrition on neonatal sheep: I. Body growth and composition, and some aspects of energetic efficiency. J.Anim.Sci. 76 (9):2354-2367, 1998.

G. H. Y. Lee, M. L. Thonney, and H. M. Richards. Rapid communication:  Partial clone and sequence of an ovine glyceraldehyde-3-phosphate dehydrogenase cDNA. J.Anim.Sci. 76:917, 1998.

A. W. Bell, W. W. Hay, and R. A. Ehrhardt. Placental transport of nutrients and its implications for fetal growth. J.Reprod.Fert.(Suppl.) 54:401-410, 1999.

P. L. Greenwood, R. M. Slepetis, J. W. Hermanson, and A. W. Bell. Intrauterine growth retardation is associated with reduced cell cycle activity, but not myofibre number, in ovine fetal muscle. Reprod.Fertil.Dev. 11 (4-5):281-291, 1999.

P. L. Greenwood, R. M. Slepetis, J. W. Hermanson, and A. W. Bell. An ultrasound-guided procedure to administer a label of DNA synthesis into fetal sheep. Reprod.Fertil.Dev. 11 (4-5):303-307, 1999.

P. R. Odgren, S. N. Popoff, F. F. Safadi, C. A. MacKay, A. Mason-Savas, M. F. Seifert, and S. C. Marks, Jr. The toothless osteopetrotic rat has a normal vitamin D-binding protein-macrophage activating factor (DBP-MAF) cascade and chondrodysplasia resistant to treatments with colony stimulating factor-1 (CSF-1) and/or DBP-MAF. Bone 25 (2):175-181, 1999.

M. L. Thonney and D. E. Hogue. Source and level of fiber for growing lambs. Proc. Cornell Nutr. Conf. Ithaca, NY:Cornell University Agricultural Experiment Station. 138-143, 1999.

R. A. Ehrhardt, R. M. Slepetis, J. Siegal-Willott, M. E. Van Amburgh, A. W. Bell, and Y. R. Boisclair. Development of a specific radioimmunoassay to measure physiological changes of circulating leptin in cattle and sheep. J.Endocrinol. 166 (3):519-528, 2000.

P. L. Greenwood, A. S. Hunt, J. W. Hermanson, and A. W. Bell. Effects of birth weight and postnatal nutrition on neonatal sheep: II. Skeletal muscle growth and development. J.Anim.Sci. 78 (1):50-61, 2000.

P. L. Greenwood, R. M. Slepetis, and A. W. Bell. Influences on fetal and placental weights during mid to late gestation in prolific ewes well nourished throughout pregnancy. Reprod.Fertil.Dev. 12 (3-4):149-156, 2000.

S. Kato, D. D. Bowman, and D. L. Brown. Efficacy of Chenopodium abrosioides as an antihelminitc for treatment of gastrointestinal nematodes in lambs. Journal of Herbs, Spices & Medicinal Plants 7:11-23, 2000.

R. P. Rhoads, P. L. Greenwood, A. W. Bell, and Y. R. Boisclair. Nutritional regulation of the genes encoding the acid-labile subunit and other components of the circulating insulin-like growth factor system in the sheep. J.Anim.Sci. 78 (10):2681-2689, 2000.

R. P. Rhoads, P. L. Greenwood, A. W. Bell, and Y. R. Boisclair. Organization and regulation of the gene encoding the sheep acid-labile subunit of the 150-kilodalton insulin-like growth factor-binding protein complex. Endo. 141 (4):1425-1433, 2000.

M. L. Thonney and D. E. Hogue. Dietary fiber source may stimulate energy intake. Feedstuffs 72:12-13, 2000.

C. de la Rosa, D. E. Hogue, and M. L. Thonney. Vaccination schedules to prevent overeating disease in sheep.  sheep! magazine :5, 2001.

R. A. Ehrhardt, R. M. Slepetis, A. W. Bell, and Y. R. Boisclair. Maternal leptin is elevated during pregnancy in sheep. Domes.Anim.Endocrinol. 21 (2):85-96, 2001.

A. W. Bell and R. A. Ehrhardt. Regulation of placental nutrient transport and implications for fetal growth. Nutrition Research Reviews 15 (2):211-230, 2002.

R. A. Ehrhardt, A. W. Bell, and Y. R. Boisclair. Spatial and developmental regulation of leptin in fetal sheep. Am.J.Physiol.Regul.Integr.Comp.Physiol. 282 (6):R1628-R1635, 2002.

P. L. Greenwood, A. S. Hunt, R. M. Slepetis, K. D. Finnerty, C. Alston, D. H. Beermann, and A. W. Bell. Effects of birth weight and postnatal nutrition on neonatal sheep: III. Regulation of energy metabolism. J.Anim.Sci. 80 (11):2850-2861, 2002.

P. L. Greenwood, R. M. Slepetis, M. J. McPhee, and A. W. Bell. Prediction of stage of pregnancy in prolific sheep using ultrasound measurement of fetal bones. Reprod.Fertil.Dev. 14 (1):7-13, 2002.

J. K. Ketzis, A. Taylor, D. D. Bowman, D. L. Brown, L. D. Warnick, and H. N. Erb. Chenopodium ambrosioides and its essential oil as treatments for Haemonchus contortus and mixed adult-nematode infections in goats. Small Ruminant Research 44 (3):193-200, 2002.

R. G. Mateescu and M. L. Thonney. Gene expression in sexually dimorphic muscles in sheep. J.Anim.Sci. 80 (7):1879-1887, 2002.

M. L. Thonney, M. C. Smith, and R. G. Mateescu. Vaccination of ewes and lambs against parainfluenza3 to prevent lamb pneumonia.  D. L. Thomas. Madison, WI:University of Wisconsin. 8:88-94, 2002. http://www.uwex.edu/ces/animalscience/sheep/Publications_and_Proceedings/res.html

Richard A. Ehrhardt, Paul L. Greenwood, Alan W. Bell, and Yves R. Boisclair. Plasma Leptin Is Regulated Predominantly by Nutrition in Preruminant Lambs. J.Nutr. 133 (12):4196-4201, 2003.

P. L. Greenwood and A. W. Bell. Consequences of intra-uterine growth retardation for postnatal growth, metabolism and pathophysiology. Reproduction Supplement 61:195-206, 2003.

N. Dabiri and M. L. Thonney. Source and level of supplemental protein for growing lambs. J.Anim.Sci. 82:3237-3244, 2004.

P. L. Greenwood, A. S. Hunt, and A. W. Bell. Effects of birth weight and postnatal nutrition on neonatal sheep: IV. Organ growth. J.Anim.Sci. 82 (2):422-428, 2004.

J. C. Marini, J. D. Klein, J. M. Sands, and M. E. Van Amburgh. Effect of nitrogen intake on nitrogen recycling and urea transporter abundance in lambs. J.Anim.Sci. 82 (4):1157-1164, 2004.

M. L. Thonney. Body composition: Breed and species effects. In: Encyclopedia of Animal Science, edited by W. G. Pond and A. W. Bell, New York:Marcel Dekker, 2004, p. 155-158.

R. G. Mateescu and M. L. Thonney. Effect of testosterone on insulin-like growth factor-I, androgen receptor, and myostatin gene expression in splenius and semitendinosus muscles in sheep. J.Anim.Sci. 83 (4):803-809, 2005.

F. B. P. Wooding, A. L. Fowden, A. W. Bell, R. A. Ehrhardt, S. W. Limesand, and W. W. Hay. Localisation of glucose transport in the ruminant placenta: implications for sequential use of transporter isoforms. Placenta 26 (8-9):626-640, 2005.

A. Carneiro, A. Esquivel, D. E. Hogue, and M. L. Thonney. Effect of fermentable fiber and protein source on feed intake and efficiency of growing lambs. Proc.Cornell Nutr.Conf. Ithaca, NY: Proc.Cornell Nutr.Conf. 68:135-139, 2006.

A. J. Nedrow, J. Gavalchin, M. C. Smith, S. M. Stehman, J. K. Maul, S. P. McDonough, and M. L. Thonney. Antibody and skin-test responses of sheep vaccinated against Johne's disease. Vet.Immunol.Immunopathol.  116:109-112, 2007.

M. L. Thonney and D. E. Hogue. Formulation of ruminant diets using potentially-fermentable NDF and nonstructural carbohydrates. Proceedings of the Cornell Nutrition Conference. Ithaca, NY:Cornell University. 69:113-123, 2007.

M. L. Thonney. Sheep reproduction: accelerated lambing systems. In: Encyclopedia of Animal Science, edited by W. G. Pond and A. W. Bell, New York:Marcel Dekker, 2007, p. 1-4.

M. L. Thonney, M. C. Smith, R. G. Mateescu, and C. Heuer. Vaccination of ewes and lambs against parainfluenza3 to prevent lamb pneumonia. Small Ruminant Research 74 (1-3):30-36, 2008.