@article{burns_fisher_pond_2011, title={Flaccidgrass Forage Mass and Canopy Characteristics Related to Steer Digesta Kinetics and Intake}, volume={51}, ISSN={["0011-183X"]}, DOI={10.2135/cropsci2011.05.0284}, abstractNote={ABSTRACT}, number={6}, journal={CROP SCIENCE}, author={Burns, J. C. and Fisher, D. S. and Pond, K. R.}, year={2011}, month={Nov}, pages={2895–2903} } @article{luginbuhl_pond_burns_fisher_2000, title={Intake and chewing behavior of steers consuming switchgrass preserved as hay or silage}, volume={78}, DOI={10.2527/2000.7871983x}, abstractNote={Effect of preservation method on intake and chewing behavior was examined using a first, late vegetative harvest (mid-June) of Kanlow switchgrass (Panicum virgatum L.). For silage (S), forage was harvested with a commercial field chopper (1.5 to 4 cm average chop length) and ensiled directly in silos 1.2 m in diameter and 3.6 m in height. For hay (H), forage was harvested with a flail-chopper (7 to 15 cm average chop length) and cured as hay in a drier at 77 degrees C. Diets of H and S were fed to six Hereford steers (338+/-5 kg) in a single crossover experiment. Chewing behavior was monitored for 4 d with a computerized system. At feeding, H was higher in DM and contained greater concentrations (DM basis) of NDF, CP, and hemicellulose, but lower concentrations of ADF and cellulose, and had lower in vitro DM disappearance values. Steers fed S had higher intakes of DM (P < .02) and NDF (P < .04) and consumed less water from the water supply (P < .01) than animals fed H. However, total amount of water (from water supply and feed) consumed per kilogram of DMI did not differ between diets. Crude protein intake was similar between diets. Preservation method had no effect on eating time, number of boli ruminated, bolus duration, and number of rumination chews per bolus. Steers fed S made fewer eating chews (P < .10) and ruminated for a longer time (P < .05) while making a greater number of rumination chews (P < .04) than steers fed H. Rumination intercycle time was slightly shorter in steers fed H (P < .05) than in steers fed S. When expressed per kilogram of NDF intake, steers fed S spent less time eating (P < .03) and made fewer eating chews (P < .02) than steers fed H; however, rumination time, number of rumination chews, and number of boli ruminated were not affected by preservation method. Steers fed S ingested feed at a greater rate (P < .03), excreted smaller fecal particles (P < .03), had meals of shorter duration (P < .06), spent less time eating during main meals (meals following feed distribution: P < .05), had more rumination periods (P < .01), and a shorter morning (P < .06) latency time (interval between end of main meal and onset of rumination) than steers fed H. These results indicate that preservation method with its concomitant differences in chop length affected forage chemical composition and voluntary intake, and that differences in chewing behavior occurred mostly during eating.}, number={7}, journal={Journal of Animal Science}, author={Luginbuhl, J. M. and Pond, K. R. and Burns, J. C. and Fisher, D. S.}, year={2000}, pages={1983–1989} } @article{merkel_pond_burns_fisher_2000, title={Rate and extent of dry matter digestibility in sacco of both oven- and freeze-dried Paraserianthes falcataria, Calliandra calothyrsus, and Gliricidia sepium}, volume={77}, number={1}, journal={Tropical Agriculture}, author={Merkel, R. C. and Pond, K. R. and Burns, J. C. and Fisher, D. S.}, year={2000}, pages={1–5} } @book{belesky_burns_chamblee_daniel_ruiter_fisher_green_mochrie_mueller_pond_et al._1998, title={Carostan flaccidgrass: Establishment, adaption, production management, forage quality, and utilization}, publisher={Raleigh, NC: N.C. Agricultural Research Service, N.C. State University}, author={Belesky, D. P. and Burns, J.C. and Chamblee, Douglas S. and Daniel, Dorsey W. and Ruiter, J.M. and Fisher, D.S. and Green, J. T. and Mochrie, R. D. and Mueller, J. P. and Pond, K. R. and et al.}, year={1998} } @article{buntinx_pond_fisher_burns_1997, title={The utilization of multidimensional scaling to identify forage characteristics associated with preference in sheep}, volume={75}, DOI={10.2527/1997.7561641x}, abstractNote={Forage preference is difficult to assess but is likely an important factor in determining DM intake. In two experiments, six sheep (wethers, Exp. 1; ewes, Exp. 2) were used to obtain preference ratings on nine hays (Exp. 1) or nine fresh forages (Exp. 2). The statistical procedure of multidimensional scaling was used to develop orthogonal dimensions to account for the observed variation in preference for hays and fresh forages. This analysis produced three dimensions that accounted for 54% of the variation in mean 3-d preference for hays (Exp. 1). The three dimensions were subsequently associated by regression analysis with seven compositional variables. These were IVDMD and concentrations of monosaccharides, short-chain polysaccharides (SCP), and disaccharides in dimension 1(R2 = .99); acid detergent insoluble ash (ADIA) concentration, monosaccharide and SCP concentrations, and masticate NDF in dimension 2 (R2 = .99); and disaccharide and starch concentrations in dimension 3 (R2 = .65). Three dimensions accounting for 51% of the variation in fresh forage preference were found and related to four variables by regression analysis. These were disaccharide concentration and median particle size in dimension 1 (R2 = .76) and starch and monosaccharide + disaccharide concentrations in dimension 3 (R2 = .97). No physicochemical variables analyzed in this study were found to be significantly associated with the coordinates for the forages in dimension 2. Multidimensional scaling accounted for more than half the observed variation in animal preference and, in all but one case, these dimensions could be associated with physicochemical characteristics of the forages.}, number={6}, journal={Journal of Animal Science}, author={Buntinx, S. E. and Pond, K. R. and Fisher, D. S. and Burns, J. C.}, year={1997}, pages={1641–1650} } @article{pond_holladay_luginbuhl_1992, title={PRESERVATION OF TISSUES AND GASTROINTESTINAL-TRACT PORTIONS BY PLASTIC COATING OR PLASTINATION}, volume={70}, ISSN={["0021-8812"]}, DOI={10.2527/1992.7041011x}, abstractNote={Two methods to preserve gastrointestinal tract (GIT) organs and tissues, plastic coating (PC) and plastination (PN), were investigated and compared. Specimens to be preserved were removed from animals within 2 h of death and immediately cleaned with water. Digesta contents were removed by flushing desired portions of GIT with water until the exiting water was clear. In the PC method, cleaned specimens were dehydrated by immersion in an isopropanol solution, dried with forced air after positioning and orientation as in situ, and finally coated on the outer and inner surfaces with a clear plastic material. In the PN procedure, specimens were filled with, and submerged in, a low-formaldehyde fixative, then dehydrated by immersion in a cold acetone solution. Dehydrated specimens were immersed in silicone and placed in a freeze drier for impregnation under low vacuum, followed by overnight gas curing with a silicone crosslinker. Finally, viewing windows were cut out with a scalpel in GIT preserved by both methods. Preserved GIT and tissues had an appearance similar to their appearance in vivo. The PC method was simple and inexpensive. Plastinated specimens were more flexible, durable, and lifelike than those preserved by the PC method. In addition, many body parts, such as muscles, nerves, bones, ligaments, and central nervous system specimens, were preserved by PN. Both methods were found to be useful tools for postmortem studies of tissues and GIT organs.}, number={4}, journal={JOURNAL OF ANIMAL SCIENCE}, author={POND, KR and HOLLADAY, SD and LUGINBUHL, JM}, year={1992}, month={Apr}, pages={1011–1014} }