Journal of Animal Science, Vol 76, Issue 4 1216-1231, Copyright © 1998 by American Society of Animal Science

JOURNAL ARTICLE

Statistical analysis of repeated measures data using SAS procedures

R. C. Littell, P. R. Henry and C. B. Ammerman
Department of Statistics, University of Florida, Gainesville 32611-0339, USA.

Mixed linear models were developed by animal breeders to evaluate genetic potential of bulls. Application of mixed models has recently spread to all areas of research, spurred by availability of advanced computer software. Previously, mixed model analyses were implemented by adapting fixed-effect methods to models with random effects. This imposed limitations on applicability because the covariance structure was not modeled. This is the case with PROC GLM in the SAS System. Recent versions of the SAS System include PROC MIXED. This procedure implements random effects in the statistical model and permits modeling the covariance structure of the data. Thereby, PROC MIXED can compute efficient estimates of fixed effects and valid standard errors of the estimates. Modeling the covariance structure is especially important for analysis of repeated measures data because measurements taken close in time are potentially more highly correlated than those taken far apart in time.

This article has been cited by other articles:

				J.-S. Eun, D. R. ZoBell, C. M. Dschaak, D. E. Diaz, and J. M. Tricarico Case Study: Effects of Supplementing a Fibrolytic Feed Enzyme on the Growth Performance and Carcass Characteristics of Beef Steers Professional Animal Scientist, June 1, 2009; 25(3): 382 - 387. [Abstract] [PDF]

				M. G. Colazo, A. Hayirli, L. Doepel, and D. J. Ambrose Reproductive performance of dairy cows is influenced by prepartum feed restriction and dietary fatty acid source J Dairy Sci, June 1, 2009; 92(6): 2562 - 2571. [Abstract] [Full Text] [PDF]

				F. Caravaca, J. Carrizosa, B. Urrutia, F. Baena, J. Jordana, M. Amills, B. Badaoui, A. Sanchez, A. Angiolillo, and J. M. Serradilla Short communication: Effect of {alpha}S1-casein (CSN1S1) and {kappa}-casein (CSN3) genotypes on milk composition in Murciano-Granadina goats J Dairy Sci, June 1, 2009; 92(6): 2960 - 2964. [Abstract] [Full Text] [PDF]

				A. A. Hayashi, K. Nones, N. C. Roy, W. C. McNabb, D. S. Mackenzie, D. Pacheco, and S. McCoard Initiation and elongation steps of mRNA translation are involved in the increase in milk protein yield caused by growth hormone administration during lactation J Dairy Sci, May 1, 2009; 92(5): 1889 - 1899. [Abstract] [Full Text] [PDF]

				B. G. Kim, M. D. Lindemann, and G. L. Cromwell The effects of dietary chromium(III) picolinate on growth performance, blood measurements, and respiratory rate in pigs kept in high and low ambient temperature J Anim Sci, May 1, 2009; 87(5): 1695 - 1704. [Abstract] [Full Text] [PDF]

				V. Nadeau, S. Guillemette, L.-F. Belanger, O. Jacob, S. Roy, and J. Charron Map2k1 and Map2k2 genes contribute to the normal development of syncytiotrophoblasts during placentation Development, April 15, 2009; 136(8): 1363 - 1374. [Abstract] [Full Text] [PDF]

				J. E. Williams, D. E. Spiers, L. N. Thompson-Golden, T. J. Hackman, M. R. Ellersieck, L. Wax, D. P. Colling, J. B. Corners, and P. A. Lancaster Effects of Tasco in Alleviation of Heat Stress in Beef Cattle Professional Animal Scientist, April 1, 2009; 25(2): 109 - 117. [Abstract] [PDF]

				S. N. Korosteleva, T. K. Smith, and H. J. Boermans Effects of feed naturally contaminated with Fusarium mycotoxins on metabolism and immunity of dairy cows J Dairy Sci, April 1, 2009; 92(4): 1585 - 1593. [Abstract] [Full Text] [PDF]

				G. Hernandez-Ramirez, S. M. Brouder, D. R. Smith, and G. E. Van Scoyoc Greenhouse Gas Fluxes in an Eastern Corn Belt Soil: Weather, Nitrogen Source, and Rotation J. Environ. Qual., March 25, 2009; 38(3): 841 - 854. [Abstract] [Full Text] [PDF]

				J. N. Bryan, D. Bommarito, D. Y. Kim, L. M. Berent, M. E. Bryan, J. C. Lattimer, C. J. Henry, H. Engelbrecht, A. Ketring, and C. Cutler Comparison of Systemic Toxicities of 177Lu-DOTMP and 153Sm-EDTMP Administered Intravenously at Equivalent Skeletal Doses to Normal Dogs J. Nucl. Med. Technol., March 1, 2009; 37(1): 45 - 52. [Abstract] [Full Text] [PDF]

				C. Mendola, D. Ferrante, E. Oldani, G. Cammarota, G. Cecci, R. Vaschetto, and F. Della Corte Thoracic epidural analgesia in post-thoracotomy patients: comparison of three different concentrations of levobupivacaine and sufentanil Br. J. Anaesth., March 1, 2009; 102(3): 418 - 423. [Abstract] [Full Text] [PDF]

				A. Hassen, S. Avendano, W. G. Hill, R. L. Fernando, S. J. Lamont, and J. C. M. Dekkers The effect of heritability estimates on high-density single nucleotide polymorphism analyses with related animals J Anim Sci, March 1, 2009; 87(3): 868 - 875. [Abstract] [Full Text] [PDF]

				M. L. Looper, R. W. Rorie, C. N. Person, T. D. Lester, D. M. Hallford, G. E. Aiken, C. A. Roberts, G. E. Rottinghaus, and C. F. Rosenkrans Jr. Influence of toxic endophyte-infected fescue on sperm characteristics and endocrine factors of yearling Brahman-influenced bulls J Anim Sci, March 1, 2009; 87(3): 1184 - 1191. [Abstract] [Full Text] [PDF]

				N. C. Whitley, D. Cazac, B. J. Rude, D. Jackson-O'Brien, and S. Parveen Use of a commercial probiotic supplement in meat goats J Anim Sci, February 1, 2009; 87(2): 723 - 728. [Abstract] [Full Text] [PDF]

				G. Cantalapiedra-Hijar, D. R. Yanez-Ruiz, A. I. Martin-Garcia, and E. Molina-Alcaide Effects of forage:concentrate ratio and forage type on apparent digestibility, ruminal fermentation, and microbial growth in goats J Anim Sci, February 1, 2009; 87(2): 622 - 631. [Abstract] [Full Text] [PDF]

				B. R. B. Coelho, R. C. Roy, A. J. Bruin, A. More, and P. White Zonejection: Conservation Tillage Manure Nutrient Delivery System Agron. J., January 8, 2009; 101(1): 215 - 225. [Abstract] [Full Text] [PDF]

				L. Calamari, A. Ferrari, and G. Bertin Effect of selenium source and dose on selenium status of mature horses J Anim Sci, January 1, 2009; 87(1): 167 - 178. [Abstract] [Full Text] [PDF]

				P. A. Abrahamse, B. Vlaeminck, S. Tamminga, and J. Dijkstra The Effect of Silage and Concentrate Type on Intake Behavior, Rumen Function, and Milk Production in Dairy Cows in Early and Late Lactation J Dairy Sci, December 1, 2008; 91(12): 4778 - 4792. [Abstract] [Full Text] [PDF]

				R. C. Araujo, A. V. Pires, I. Susin, C. Q. Mendes, G. H. Rodrigues, I. U. Packer, and M. L. Eastridge Milk yield, milk composition, eating behavior, and lamb performance of ewes fed diets containing soybean hulls replacing coastcross (Cynodon species) hay J Anim Sci, December 1, 2008; 86(12): 3511 - 3521. [Abstract] [Full Text] [PDF]

				M. Berkeveld, P. Langendijk, J. H. M. Verheijden, M. A. M. Taverne, A. van Nes, P. van Haard, and A. P. Koets Citrulline and intestinal fatty acid-binding protein: Longitudinal markers of postweaning small intestinal function in pigs? J Anim Sci, December 1, 2008; 86(12): 3440 - 3449. [Abstract] [Full Text] [PDF]

				J. Rogosic, J. A. Pfister, F. D. Provenza, and J. Pavlicevic The effect of polyethylene glycol on intake of Mediterranean shrubs by sheep and goats J Anim Sci, December 1, 2008; 86(12): 3491 - 3496. [Abstract] [Full Text] [PDF]

				G. J. Lascano, G. I. Zanton, M. L. Moody, P. A. Topper, E. F. Wheeler, and A. J. Heinrichs Short Communication: Effect of Changing the Ratio of Forage to Concentrate on Ammonia Emissions by Dairy Heifers J Dairy Sci, November 1, 2008; 91(11): 4301 - 4306. [Abstract] [Full Text] [PDF]

				N. DiLorenzo, C. R. Dahlen, F. Diez-Gonzalez, G. C. Lamb, J. E. Larson, and A. DiCostanzo Effects of feeding polyclonal antibody preparations on rumen fermentation patterns, performance, and carcass characteristics of feedlot steers J Anim Sci, November 1, 2008; 86(11): 3023 - 3032. [Abstract] [Full Text] [PDF]

				G. A. Perry and B. L. Perry Effects of standing estrus and supplemental estradiol on changes in uterine pH during a fixed-time artificial insemination protocol J Anim Sci, November 1, 2008; 86(11): 2928 - 2935. [Abstract] [Full Text] [PDF]

				A. C. VanderZaag, R. J. Gordon, D. L. Burton, R. C. Jamieson, and G. W. Stratton Ammonia Emissions from Surface Flow and Subsurface Flow Constructed Wetlands Treating Dairy Wastewater J. Environ. Qual., October 23, 2008; 37(6): 2028 - 2036. [Abstract] [Full Text] [PDF]

				M. Pedernera, S. C. Garcia, A. Horagadoga, I. Barchia, and W. J. Fulkerson Energy Balance and Reproduction on Dairy Cows Fed to Achieve Low or High Milk Production on a Pasture-Based System J Dairy Sci, October 1, 2008; 91(10): 3896 - 3907. [Abstract] [Full Text] [PDF]

				B. J. Heins, L. B. Hansen, A. J. Seykora, A. R. Hazel, D. G. Johnson, and J. G. Linn Crossbreds of Jersey x Holstein Compared with Pure Holsteins for Body Weight, Body Condition Score, Dry Matter Intake, and Feed Efficiency During the First One Hundred Fifty Days of First Lactation J Dairy Sci, September 1, 2008; 91(9): 3716 - 3722. [Abstract] [Full Text] [PDF]

				Z. Qu, S. Van Ginkel, A. M. Roy, L. Westbrook, M. Nasrin, Y. Maxuitenko, A. R. Frost, D. Carey, W. Wang, R. Li, et al. Vascular Endothelial Growth Factor Reduces Tamoxifen Efficacy and Promotes Metastatic Colonization and Desmoplasia in Breast Tumors Cancer Res., August 1, 2008; 68(15): 6232 - 6240. [Abstract] [Full Text] [PDF]

				N. P. P. Macciotta, M. Mele, G. Conte, A. Serra, M. Cassandro, R. Dal Zotto, A. Cappio Borlino, G. Pagnacco, and P. Secchiari Association Between a Polymorphism at the Stearoyl CoA Desaturase Locus and Milk Production Traits in Italian Holsteins J Dairy Sci, August 1, 2008; 91(8): 3184 - 3189. [Abstract] [Full Text] [PDF]

				N. R. Leitman, D. C. Busch, J. F. Bader, D. A. Mallory, D. J. Wilson, M. C. Lucy, M. R. Ellersieck, M. F. Smith, and D. J. Patterson Comparison of protocols to synchronize estrus and ovulation in estrous-cycling and prepubertal beef heifers J Anim Sci, August 1, 2008; 86(8): 1808 - 1818. [Abstract] [Full Text] [PDF]

				M. Craninx, A. Steen, H. Van Laar, T. Van Nespen, J. Martin-Tereso, B. De Baets, and V. Fievez Effect of Lactation Stage on the Odd- and Branched-Chain Milk Fatty Acids of Dairy Cattle Under Grazing and Indoor Conditions J Dairy Sci, July 1, 2008; 91(7): 2662 - 2677. [Abstract] [Full Text] [PDF]

				Y.-H. Chung, M. M. Pickett, T. W. Cassidy, and G. A. Varga Effects of Prepartum Dietary Carbohydrate Source and Monensin on Periparturient Metabolism and Lactation in Multiparous Cows J Dairy Sci, July 1, 2008; 91(7): 2744 - 2758. [Abstract] [Full Text] [PDF]

				C. L. Engel, H. H. Patterson, and G. A. Perry Effect of dried corn distillers grains plus solubles compared with soybean hulls, in late gestation heifer diets, on animal and reproductive performance J Anim Sci, July 1, 2008; 86(7): 1697 - 1708. [Abstract] [Full Text] [PDF]

				C. Paradis, R. Berthiaume, C. Lafreniere, R. Gervais, and P. Y. Chouinard Conjugated linoleic acid content in adipose tissue of calves suckling beef cows on pasture and supplemented with raw or extruded soybeans J Anim Sci, July 1, 2008; 86(7): 1624 - 1636. [Abstract] [Full Text] [PDF]

				J. J. Miller, T. Curtis, F. J. Larney, T. A. McAllister, and B. M. Olson Physical and Chemical Properties of Feedlot Pen Surfaces Located on Moderately Coarse- and Moderately Fine-Textured Soils in Southern Alberta J. Environ. Qual., June 23, 2008; 37(4): 1589 - 1598. [Abstract] [Full Text] [PDF]

				Q. Zebeli, M. Tafaj, B. Junck, V. Olschlager, B. N. Ametaj, and W. Drochner Evaluation of the Response of Ruminal Fermentation and Activities of Nonstarch Polysaccharide-Degrading Enzymes to Particle Length of Corn Silage in Dairy Cows J Dairy Sci, June 1, 2008; 91(6): 2388 - 2398. [Abstract] [Full Text] [PDF]

				R. Flores, M. L. Looper, R. W. Rorie, D. M. Hallford, and C. F. Rosenkrans Jr Endocrine factors and ovarian follicles are influenced by body condition and somatotropin in postpartum beef cows J Anim Sci, June 1, 2008; 86(6): 1335 - 1344. [Abstract] [Full Text] [PDF]

				C. L. Wright, J. W. Spears, and K. E. Webb Jr Uptake of zinc from zinc sulfate and zinc proteinate by ovine ruminal and omasal epithelia J Anim Sci, June 1, 2008; 86(6): 1357 - 1363. [Abstract] [Full Text] [PDF]

				H. Dolliver and S. Gupta Antibiotic Losses in Leaching and Surface Runoff from Manure-Amended Agricultural Land J. Environ. Qual., May 1, 2008; 37(3): 1227 - 1237. [Abstract] [Full Text] [PDF]

				P. A. Abrahamse, J. Dijkstra, B. Vlaeminck, and S. Tamminga Frequent Allocation of Rotationally Grazed Dairy Cows Changes Grazing Behavior and Improves Productivity J Dairy Sci, May 1, 2008; 91(5): 2033 - 2045. [Abstract] [Full Text] [PDF]

				S. Davidson, B. A. Hopkins, J. Odle, C. Brownie, V. Fellner, and L. W. Whitlow Supplementing Limited Methionine Diets with Rumen-Protected Methionine, Betaine, and Choline in Early Lactation Holstein Cows J Dairy Sci, April 1, 2008; 91(4): 1552 - 1559. [Abstract] [Full Text] [PDF]

				P. Gregorini, S. A. Gunter, and P. A. Beck Matching plant and animal processes to alter nutrient supply in strip-grazed cattle: Timing of herbage and fasting allocation J Anim Sci, April 1, 2008; 86(4): 1006 - 1020. [Abstract] [Full Text] [PDF]

				L. M. Sullivan Repeated Measures Circulation, March 4, 2008; 117(9): 1238 - 1243. [Full Text] [PDF]

				I. M. Hajjar, M. Keown, P. Lewis, and A. Almor Angiotensin Converting Enzyme Inhibitors and Cognitive and Functional Decline in Patients with Alzheimer's Disease: An Observational Study American Journal of Alzheimer's Disease and Other Dementias, March 1, 2008; 23(1): 77 - 83. [Abstract] [PDF]

				I. Seiden-Long, R. Navab, W. Shih, M. Li, J. Chow, C. Q. Zhu, N. Radulovich, C. Saucier, and M.-S. Tsao Gab1 but not Grb2 mediates tumor progression in Met overexpressing colorectal cancer cells Carcinogenesis, March 1, 2008; 29(3): 647 - 655. [Abstract] [Full Text] [PDF]

				D. C. Busch, J. A. Atkins, J. F. Bader, D. J. Schafer, D. J. Patterson, T. W. Geary, and M. F. Smith Effect of ovulatory follicle size and expression of estrus on progesterone secretion in beef cows J Anim Sci, March 1, 2008; 86(3): 553 - 563. [Abstract] [Full Text] [PDF]

				L. A. Gonzalez, A. Ferret, X. Manteca, J. L. Ruiz-de-la-Torre, S. Calsamiglia, M. Devant, and A. Bach Effect of the number of concentrate feeding places per pen on performance, behavior, and welfare indicators of Friesian calves during the first month after arrival at the feedlot J Anim Sci, February 1, 2008; 86(2): 419 - 431. [Abstract] [Full Text] [PDF]

				T. F. Oresanya, A. D. Beaulieu, and J. F. Patience Investigations of energy metabolism in weanling barrows: The interaction of dietary energy concentration and daily feed (energy) intake J Anim Sci, February 1, 2008; 86(2): 348 - 363. [Abstract] [Full Text] [PDF]

				E. D Fountain, J. Mao, J. J Whyte, K. E Mueller, M. R Ellersieck, M. J Will, R. M. Roberts, R. MacDonald, and C. S Rosenfeld Effects of Diets Enriched in Omega-3 and Omega-6 Polyunsaturated Fatty Acids on Offspring Sex-Ratio and Maternal Behavior in Mice Biol Reprod, February 1, 2008; 78(2): 211 - 217. [Abstract] [Full Text] [PDF]

				J. A. Atkins, D. C. Busch, J. F. Bader, D. H. Keisler, D. J. Patterson, M. C. Lucy, and M. F. Smith Gonadotropin-releasing hormone-induced ovulation and luteinizing hormone release in beef heifers: Effect of day of the cycle J Anim Sci, January 1, 2008; 86(1): 83 - 93. [Abstract] [Full Text] [PDF]

				J. W. Golden, M. S. Kerley, and W. H. Kolath The relationship of feeding behavior to residual feed intake in crossbred Angus steers fed traditional and no-roughage diets J Anim Sci, January 1, 2008; 86(1): 180 - 186. [Abstract] [Full Text] [PDF]

				S. A. Bhatti, J. G. P. Bowman, J. L. Firkins, A. V. Grove, and C. W. Hunt Effect of intake level and alfalfa substitution for grass hay on ruminal kinetics of fiber digestion and particle passage in beef cattle J Anim Sci, January 1, 2008; 86(1): 134 - 145. [Abstract] [Full Text] [PDF]

				Y.-H. Chung, D. E. Rico, C. M. Martinez, T. W. Cassidy, V. Noirot, A. Ames, and G. A. Varga Effects of Feeding Dry Glycerin to Early Postpartum Holstein Dairy Cows on Lactational Performance and Metabolic Profiles J Dairy Sci, December 1, 2007; 90(12): 5682 - 5691. [Abstract] [Full Text] [PDF]

				M. Berkeveld, P. Langendijk, J. E. Bolhuis, A. P. Koets, J. H. M. Verheijden, and M. A. M. Taverne Intermittent suckling during an extended lactation period: Effects on piglet behavior J Anim Sci, December 1, 2007; 85(12): 3415 - 3424. [Abstract] [Full Text] [PDF]

				J. H. Clark, K. C. Olson, T. B. Schmidt, M. L. Linville, D. O. Alkire, D. L. Meyer, G. K. Rentfrow, C. C. Carr, and E. P. Berg Effects of dry matter intake restriction on diet digestion, energy partitioning, phosphorus retention, and ruminal fermentation by beef steers J Anim Sci, December 1, 2007; 85(12): 3383 - 3390. [Abstract] [Full Text] [PDF]

				I. Hajjar, D. T. Lackland, L. A. Cupples, and L. A. Lipsitz Association Between Concurrent and Remote Blood Pressure and Disability in Older Adults Hypertension, December 1, 2007; 50(6): 1026 - 1032. [Abstract] [Full Text] [PDF]

				J. P. Goff, E. C. Brummer, S. J. Henning, R. K. Doorenbos, and R. L. Horst Effect of Application of Ammonium Chloride and Calcium Chloride on Alfalfa Cation-Anion Content and Yield J Dairy Sci, November 1, 2007; 90(11): 5159 - 5164. [Abstract] [Full Text] [PDF]

				J. K. Drackley, T. R. Overton, G. Ortiz-Gonzalez, A. D. Beaulieu, D. M. Barbano, J. M. Lynch, and E. G. Perkins Responses to Increasing Amounts of High-Oleic Sunflower Fatty Acids Infused into the Abomasum of Lactating Dairy Cows J Dairy Sci, November 1, 2007; 90(11): 5165 - 5175. [Abstract] [Full Text] [PDF]

				A. P Alexenko, J. Mao, M. R Ellersieck, A. M Davis, J. J Whyte, C. S Rosenfeld, and R. M. Roberts The Contrasting Effects of Ad Libitum and Restricted Feeding of a Diet Very High in Saturated Fats on Sex Ratio and Metabolic Hormones in Mice Biol Reprod, October 1, 2007; 77(4): 599 - 604. [Abstract] [Full Text] [PDF]

				V. Robles, L. A. Gonzalez, A. Ferret, X. Manteca, and S. Calsamiglia Effects of feeding frequency on intake, ruminal fermentation, and feeding behavior in heifers fed high-concentrate diets J Anim Sci, October 1, 2007; 85(10): 2538 - 2547. [Abstract] [Full Text] [PDF]

				S. N. Korosteleva, T. K. Smith, and H. J. Boermans Effects of Feedborne Fusarium Mycotoxins on the Performance, Metabolism, and Immunity of Dairy Cows J Dairy Sci, August 1, 2007; 90(8): 3867 - 3873. [Abstract] [Full Text] [PDF]

				C.-Q. Zhu, S. N. Popova, E. R. S. Brown, D. Barsyte-Lovejoy, R. Navab, W. Shih, M. Li, M. Lu, I. Jurisica, L. Z. Penn, et al. Integrin {alpha}11 regulates IGF2 expression in fibroblasts to enhance tumorigenicity of human non-small-cell lung cancer cells PNAS, July 10, 2007; 104(28): 11754 - 11759. [Abstract] [Full Text] [PDF]

				L F C Brito, A D Barth, N C Rawlings, R E Wilde, D H Crews Jr, Y R Boisclair, R A Ehrhardt, and J P Kastelic Effect of feed restriction during calfhood on serum concentrations of metabolic hormones, gonadotropins, testosterone, and on sexual development in bulls Reproduction, July 1, 2007; 134(1): 171 - 181. [Abstract] [Full Text] [PDF]

				W. Hu, M. R. Murphy, P. D. Constable, and E. Block Dietary Cation-Anion Difference Effects on Performance and Acid-Base Status of Dairy Cows Postpartum J Dairy Sci, July 1, 2007; 90(7): 3367 - 3375. [Abstract] [Full Text] [PDF]

				D. B. Carlson, J. W. McFadden, A. D'Angelo, J. C. Woodworth, and J. K. Drackley Dietary L-Carnitine Affects Periparturient Nutrient Metabolism and Lactation in Multiparous Cows J Dairy Sci, July 1, 2007; 90(7): 3422 - 3441. [Abstract] [Full Text] [PDF]

				J. A. A. Pires, A. H. Souza, and R. R. Grummer Induction of Hyperlipidemia by Intravenous Infusion of Tallow Emulsion Causes Insulin Resistance in Holstein Cows J Dairy Sci, June 1, 2007; 90(6): 2735 - 2744. [Abstract] [Full Text] [PDF]

				D. B. Carlson, J. C. Woodworth, and J. K. Drackley Effect of L-Carnitine Infusion and Feed Restriction on Carnitine Status in Lactating Holstein Cows J Dairy Sci, May 1, 2007; 90(5): 2367 - 2376. [Abstract] [Full Text] [PDF]

				R. F. Cooke, N. S. Del Rio, D. Z. Caraviello, S. J. Bertics, M. H. Ramos, and R. R. Grummer Supplemental Choline for Prevention and Alleviation of Fatty Liver in Dairy Cattle J Dairy Sci, May 1, 2007; 90(5): 2413 - 2418. [Abstract] [Full Text] [PDF]

				R. Flores, M. L. Looper, R. W. Rorie, M. A. Lamb, S. T. Reiter, D. M. Hallford, D. L. Kreider, and C. F. Rosenkrans Jr. Influence of body condition and bovine somatotropin on estrous behavior, reproductive performance, and concentrations of serum somatotropin and plasma fatty acids in postpartum Brahman-influenced cows J Anim Sci, May 1, 2007; 85(5): 1318 - 1329. [Abstract] [Full Text] [PDF]

				G. R. Oetzel, K. M. Emery, W. P. Kautz, and J. E. Nocek Direct-Fed Microbial Supplementation and Health and Performance of Pre- and Postpartum Dairy Cattle: A Field Trial J Dairy Sci, April 1, 2007; 90(4): 2058 - 2068. [Abstract] [Full Text] [PDF]

				C. L. Kien, R. Blauwiekel, J. Y. Bunn, T. L. Jetton, W. L. Frankel, and J. J. Holst Cecal Infusion of Butyrate Increases Intestinal Cell Proliferation in Piglets J. Nutr., April 1, 2007; 137(4): 916 - 922. [Abstract] [Full Text] [PDF]

				B. R. Ball Coelho, R. C. Roy, E. Topp, and D. R. Lapen Tile Water Quality following Liquid Swine Manure Application into Standing Corn J. Environ. Qual., March 1, 2007; 36(2): 580 - 587. [Abstract] [Full Text] [PDF]

				P. R Buff, N. T Messer IV, A. M Cogswell, D. A Wilson, P. J Johnson, D. H Keisler, and V. K Ganjam Induction of pulsatile secretion of leptin in horses following thyroidectomy J. Endocrinol., February 1, 2007; 192(2): 353 - 359. [Abstract] [Full Text] [PDF]

				G. I. Zanton, M. T. Gabler, and A. J. Heinrichs Manipulation of Soluble and Rumen-Undegradable Protein in Diets Fed to Postpubertal Dairy Heifers J Dairy Sci, February 1, 2007; 90(2): 978 - 986. [Abstract] [Full Text] [PDF]

				A. Z. Odabasi, R. D. Miles, M. O. Balaban, and K. M. Portier Changes in Brown Eggshell Color As the Hen Ages Poult. Sci., February 1, 2007; 86(2): 356 - 363. [Abstract] [Full Text] [PDF]

				B. Badaoui, J. M. Serradilla, A. Tomas, B. Urrutia, J. L. Ares, J. Carrizosa, A. Sanchez, J. Jordana, and M. Amills Goat Acetyl-Coenzyme A Carboxylase {alpha}: Molecular Characterization, Polymorphism, and Association with Milk Traits J Dairy Sci, February 1, 2007; 90(2): 1039 - 1043. [Abstract] [Full Text] [PDF]

				D. B. Carlson, N. B. Litherland, H. M. Dann, J. C. Woodworth, and J. K. Drackley Metabolic Effects of Abomasal L-Carnitine Infusion and Feed Restriction in Lactating Holstein Cows J Dairy Sci, December 1, 2006; 89(12): 4819 - 4834. [Abstract] [Full Text] [PDF]

				R. C. Rigden, D. M. Jandhyala, C. Dupont, D. Crosbie-Caird, N. Lopez-Villalobos, N. Maeda, B. Gicquel, and A. Murray Humoral and cellular immune responses in sheep immunized with a 22 kilodalton exported protein of Mycobacterium avium subspecies paratuberculosis. J. Med. Microbiol., December 1, 2006; 55(Pt 12): 1735 - 1740. [Abstract] [Full Text] [PDF]

				I. Rosenfeld, D. Austbo, and H. Volden Models for estimating digesta passage kinetics in the gastrointestinal tract of the horse J Anim Sci, December 1, 2006; 84(12): 3321 - 3328. [Abstract] [Full Text] [PDF]

				T. A. Quinn, G. Berberian, S. E. Cabreriza, L. J. Maskin, A. D. Weinberg, J. W. Holmes, and H. M. Spotnitz Effects of sequential biventricular pacing during acute right ventricular pressure overload Am J Physiol Heart Circ Physiol, November 1, 2006; 291(5): H2380 - H2387. [Abstract] [Full Text] [PDF]

				I. Mandeville, J. Aubin, M. LeBlanc, M. Lalancette-Hebert, M.-F. Janelle, G. M. Tremblay, and L. Jeannotte Impact of the Loss of Hoxa5 Function on Lung Alveogenesis Am. J. Pathol., October 1, 2006; 169(4): 1312 - 1327. [Abstract] [Full Text] [PDF]

				P. R. Buff, B. R. Spader, C. D. Morrison, and D. H. Keisler Endocrine responses in mares undergoing abrupt changes in nutritional management J Anim Sci, October 1, 2006; 84(10): 2700 - 2707. [Abstract] [Full Text] [PDF]

				P. W. Cardozo, S. Calsamiglia, A. Ferret, and C. Kamel Effects of alfalfa extract, anise, capsicum, and a mixture of cinnamaldehyde and eugenol on ruminal fermentation and protein degradation in beef heifers fed a high-concentrate diet J Anim Sci, October 1, 2006; 84(10): 2801 - 2808. [Abstract] [Full Text] [PDF]

				Z. Wang, J. D. Nkrumah, C. Li, J. A. Basarab, L. A. Goonewardene, E. K. Okine, D. H. Crews Jr., and S. S. Moore Test duration for growth, feed intake, and feed efficiency in beef cattle using the GrowSafe System J Anim Sci, September 1, 2006; 84(9): 2289 - 2298. [Abstract] [Full Text] [PDF]

				B. Ma, A. B. Lawson, A. D. Liese, R. A. Bell, and E. J. Mayer-Davis Dairy, Magnesium, and Calcium Intake in Relation to Insulin Sensitivity: Approaches to Modeling a Dose-dependent Association Am. J. Epidemiol., September 1, 2006; 164(5): 449 - 458. [Abstract] [Full Text] [PDF]

				V. Bissonauth, S. Roy, M. Gravel, S. Guillemette, and J. Charron Requirement for Map2k1 (Mek1) in extra-embryonic ectoderm during placentogenesis Development, September 1, 2006; 133(17): 3429 - 3440. [Abstract] [Full Text] [PDF]

				B. Muylkens, F. Meurens, F. Schynts, F. Farnir, A. Pourchet, M. Bardiau, S. Gogev, J. Thiry, A. Cuisenaire, A. Vanderplasschen, et al. Intraspecific bovine herpesvirus 1 recombinants carrying glycoprotein E deletion as a vaccine marker are virulent in cattle. J. Gen. Virol., August 1, 2006; 87(Pt 8): 2149 - 2154. [Abstract] [Full Text] [PDF]

				S. T. Butler, S. H. Pelton, and W. R. Butler Energy balance, metabolic status, and the first postpartum ovarian follicle wave in cows administered propylene glycol. J Dairy Sci, August 1, 2006; 89(8): 2938 - 2951. [Abstract] [Full Text] [PDF]

				J. J. Cranston, J. D. Rivera, M. L. Galyean, M. M. Brashears, J. C. Brooks, C. E. Markham, L. J. McBeth, and C. R. Krehbiel Effects of feeding whole cottonseed and cottonseed products on performance and carcass characteristics of finishing beef cattle J Anim Sci, August 1, 2006; 84(8): 2186 - 2199. [Abstract] [Full Text] [PDF]

				J. J. Miller, E. C. S. Olson, D. S. Chanasyk, B. W. Beasley, F. J. Larney, and B. M. Olson Phosphorus and nitrogen in rainfall simulation runoff after fresh and composted beef cattle manure application. J. Environ. Qual., July 1, 2006; 35(4): 1279 - 1290. [Abstract] [Full Text] [PDF]

				S. M. Richardson, P. D. Siciliano, T. E. Engle, C. K. Larson, and T. L. Ward Effect of selenium supplementation and source on the selenium status of horses J Anim Sci, July 1, 2006; 84(7): 1742 - 1748. [Abstract] [Full Text] [PDF]

				S. L. Jaeger, M. K. Luebbe, C. N. Macken, G. E. Erickson, T. J. Klopfenstein, W. A. Fithian, and D. S. Jackson Influence of corn hybrid traits on digestibility and the efficiency of gain in feedlot cattle J Anim Sci, July 1, 2006; 84(7): 1790 - 1800. [Abstract] [Full Text] [PDF]

				A Petzold, G Keir, A Kay, M Kerr, and E J Thompson Axonal damage and outcome in subarachnoid haemorrhage. J. Neurol. Neurosurg. Psychiatry, June 1, 2006; 77(6): 753 - 759. [Abstract] [Full Text] [PDF]

				A. Ahmadzadeh, M. A. Barnes, F. C. Gwazdauskas, and R. M. Akers Dopamine antagonist alters serum cortisol and prolactin secretion in lactating Holstein cows. J Dairy Sci, June 1, 2006; 89(6): 2051 - 2055. [Abstract] [Full Text] [PDF]

				J. E. Sprinkle, S. P. Cuneo, H. M. Frederick, R. M. Enns, D. W. Schafer, G. E. Carstens, S. B. Daugherty, T. H. Noon, B. M. Rickert, and C. Reggiardo Effects of a long-acting, trace mineral, reticulorumen bolus on range cow productivity and trace mineral profiles J Anim Sci, June 1, 2006; 84(6): 1439 - 1453. [Abstract] [Full Text] [PDF]

				Y. H. Chung, H. G. Bateman II, C. C. Williams, C. C. Stanley, D. T. Gantt, T. W. Braud, L. L. Southern, J. D. Ward, P. G. Hoyt, and G. A. Sod Effects of Methionine and Lysine on Fermentation In Vitro and In Vivo, Nutrient Flow to the Intestine, and Milk Production J Dairy Sci, May 1, 2006; 89(5): 1613 - 1620. [Abstract] [Full Text] [PDF]

				S. Ahvenjarvi, E. Joki-Tokola, A. Vanhatalo, S. Jaakkola, and P. Huhtanen Effects of Replacing Grass Silage with Barley Silage in Dairy Cow Diets J Dairy Sci, May 1, 2006; 89(5): 1678 - 1687. [Abstract] [Full Text] [PDF]

				C. G. Swan, J. G. P. Bowman, J. M. Martin, and M. J. Giroux Increased puroindoline levels slow ruminal digestion of wheat (Triticum aestivum L.) starch by cattle J Anim Sci, March 1, 2006; 84(3): 641 - 650. [Abstract] [Full Text] [PDF]

				P. A. Davis, L. R. McDowell, N. S. Wilkinson, C. D. Buergelt, R. Van Alstyne, R. N. Weldon, and T. T. Marshall Tolerance of inorganic selenium by range-type ewes during gestation and lactation J Anim Sci, March 1, 2006; 84(3): 660 - 668. [Abstract] [Full Text] [PDF]