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Collier, Robert J

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Research

research activities

• Stress factors of farm animals and their effect on performance

Publications

individual publications

• academic article

  • Effects of heat stress and nutrition on lactating Holstein cows: II. Aspects of hepatic growth hormone responsiveness.  Journal of Dairy Science.  93:170-179. 2010
  • Physiological responses of dairy cows during extended solar exposure..  Transactions of the American Society of Agricultural and Biological Engineers (ASABE).  53:239-247. 2010
  • Sweating rates of dairy cows and beef heifers in hot conditions.  Transactions of the American Society of Agricultural and Biological Engineers (ASABE).  51:2167-2178. 2008
  • Development and testing of a high-density cDNA microarray resource for cattle.  American Journal of Physiology: Physiological Genomics.  15:158-164. 2003
  • Development and testing of a high-density cDNA microarray resource for cattle.  Physiological Genomics.  15:158-164. 2003
  • The effect of breed, parity, and stage of lactation on conjugated linoleic acid (CLA) in milk fat from dairy cows.  Journal of Dairy Science.  86:2588-2597. 2003
  • Correspondence RE: Role of the insulin-like growth factors in cancer development and progression.  J. Nat. Cancer Inst..  93:876. 2001
  • Production responses to bovine somatotropin in northeast dairy herds.  Journal of Dairy Science.  82:2564-2573. 1999
  • Insulin-like growth factors I and II, somatotropin, prolactin and placental lactogen are not acute effectors of lipolysis in ruminants.  Domestic Animal Endocrinology.  13:239-249. 1996
  • Clinical mastitis in cows treated with sometribove (recombinant bovine somatotropin) and its relationship to milk yield.  Journal of Dairy Science.  77:2249-2260. 1994
  • Relationship of milk yield, clinical mastitis and associated antibiotic use in control and sometribove-treated cows.  Journal of Dairy Science.  77:2249-2260. 1993
  • Variants of somatotropin in cattle: Gene frequencies in major dairy breeds and associated milk production.  Domestic Animal Endocrinology.  10:325-333. 1993
  • Regulation of nutrient partitioning.  Journal of Biological Techniques and Communications, Invited Review.  6:1-5. 1986
  • Season and treatment effects on serum prolactin and milk yield during induced lactation.  Journal of Dairy Science.  62:1880-1888. 1979
  • Effect of reserpine on milk production and serum prolactin of cows hormonally induced into lactation.  Journal of Dairy Science.  60:896-901. 1977
  • Effect of reserpine on serum prolactin, growth hormone, and glucocorticoids in dairy cows.  Proc. Soc. Exp. Biol. Med..  155:189-192. 1977
  • Lactogenesis in explant cultures of mammary tissue from pregnant cows.  Endocrinology.  100:1192-1200. 1977
  • Cellular studies of mammary tissue from cows hormonally induced into lactation: histology and ultrastructure.  Journal of Dairy Science.  59:1232-1246. 1976
  • Cellular studies of mammary tissue from cows hormonally induced into lactation: lactose and fatty acid synthesis.  Journal of Dairy Science.  59:1226-1231. 1976
  • Freshening without calving.  Illinois Res..  18:10-11. 1976
  • Milk production and reproductive performance of cows hormonally induced into lactation.  Journal of Dairy Science.  58:1524-1527. 1975

• booksection

  • Physiological limitations, nutrient partitioning 2005

• chapter

  • Chapter 14: Genes involved in the thermal tolerance of livestock..  Environmental Stress and Amelioration in Livestock Production. 379-410. 2012

• conference paper

  • Evaluation of body temperature and sweating rate of Senepol and crossbred heifers in the tropics..  Journal of Animal Science. 2012
  • Evaluation of body temperature and sweating rate of Senepol cows in the tropics..  Journal of Animal Science. 241. 2012
  • Use of Bovine Somatotropin to improve productive efficiency.  Proceedings Mid-Atlantic Nutrition Conference, March 25, Timonium, MD.. 43-52. 2010
  • Evaluation of thermal stress indices for cattle.  2009 ASABE Annual International Meeting, Reno, Nevada. 2009
  • Sweating rates of dairy and feedlot cows under stressful thermal environments.  ASABE Eighth International Livestock Environment Symposium. 2008
  • Nutrient partitioning and milk yield: constraints and opportunities in the 21st century.  Cornell Nutr. Conference. 2004

• document part

  • Developing the research question, hypothesis, design, and protocol.  692. 2012
  • Effects of extended calving intervals with use of bST on lactation performance.  148. 1997
  • Relationship of milk yield, clinical mastitis and associated antibiotic use in control and sometribove-treated cows.  237. 1993
  • Relationship of milk yield, clinical mastitis and associated antibiotic use in control and sometribove-treated cows.  237. 1993
  • Somatotropin, prolactin, placental lactogen and insulin-like growth factors I and II are not acute effectors of lipolysis in growing ruminants.  213. 1992
  • Nutrient interactions with somatomedins (insulin-like growth factors) and their binding proteins.  448. 1991
  • Season and treatment effects on serum prolactin and milk yield during induced lactation.  153-154. 1978
  • Lactogenesis in explant cultures of cow mammary tissue.  59. 1976
  • Prolactin and milk yield following reserpine.  273. 1976
  • Prolactin and milk yield following reserpine.  273. 1976
  • Efficacy of reserpine use during hormonal induction of lactation in cows.  740. 1975
  • Cellular studies of cows hormonally induced to lactate.  203. 1974

• report

  • Use of bovine somatotropin in dairy production 2010
• Production responses to bST in northeast DHI field data 1999
• Growth hormone enhancement of lactation 1985
• Induction of lactation in non pregnant dairy cows 1981
• Hormonal induction of lactation in nonpregnant dairy cows 1978