Digital Commons Network^™

Forage News [2007-01], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Forages at KCA
• Gerrish To Speak At HOAGC
• Hay Quality Makes a Difference
• Heart of America Grazing Conference January 24^th and 25^th
• Kentucky Alfalfa Conference: 27 Years & Growing
• National Grazing Conference Features Three Kentucky Producers
• Goats in Kentucky
• Kentucky Agricultural Economy
• Utilizing Sericea Lespedeza as a Goat Forage in Kentucky
• Upcoming Events

Bo35-3-Web.Pdf, Bird Observer

Bird Observer

No abstract provided.

Bo35-5-Web.Pdf, Bird Observer

Bird Observer

No abstract provided.

Bo35-6-Web.Pdf, Bird Observer

Bird Observer

No abstract provided.

The First Amendment Implications Of Teaching The Theory Of Evolution And Creationism In Public Schools Chalk Talks, Ellen Yonts Brownfield

The Journal of Law and Education

No abstract provided.

2006-2007 Survey Of Florida Public Employment Law, John Sanchez

Nova Law Review

No abstract provided.

Fa2h Dependent Fatty Acid 2-Hydroxylation In The Mammalian Nervous System, Nathan Lance Alderson

MUSC Theses and Dissertations

Myelin is formed by oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. This unique membrane is comprised of approximately 70% lipid and 30% protein. The high lipid content is thought to be vital for its insulatory function. Galactosylceramide (GaICer) and sulfatide make up approximately 30% of total myelin lipids, with more than half of these galactolipids containing fatty acids hydroxylated at the C[subscript 2] position (2-hydroxy fatty acids). Despite their high abundance, very little is know about the biosynthesis of these 2-hydroxy galactolipids, and specific functions of the 2-hydroxyl group in myelin galactolipids remain …

Notes On A Poetics Of Time, Lawrence Kimmel

Philosophy Faculty Research

The idea of a poetics in contrast with an aesthetics of time is intended to focus on the creative possibilities of imagination in configurations of time. An aesthetics of time focusing on sensuous experience is a certainly a basic resource of creative imagination in literature. But the concept of a poetics of time, taken from the root meaning of poiesis in classical Greek thought—to make, or to bring forth—enables an inquiry into conceptions of human life and thought brought forth in various creative configurations of time in literature. This essay will analyze some of the ways in which poetic imagination …

Extracting Corporate Responsibility: Towards A Human Rights Impact Assessment, Tarek F. Massarani, Margo Tatgenhorst Drakos, Joanna Pajkowska

Cornell International Law Journal

No abstract provided.

Racketed Tail Of The Male And Female Turquoise-Browed Motmot: Male But Not Female Tail Length Correlates With Pairing Success, Performance, And Reproductive Success, Troy G. Murphy

Biology Faculty Research

Both males and females of many avian species maintain elaborate plumage traits, and elaborate monomorphic plumage may convey adaptive benefits to one or both sexes as inter- or intraspecific signals. Both sexes of the turquoise-browed motmot (Eumomota superciliosa) are elaborately plumed with long racket-tipped tail. I investigated whether the racketed tail functions as a sexually selected signal in one or both sexes by testing the predictions that males and/or females with the largest tails have: (1) greater pairing success, (2) greater reproductive performance (clutch-initiation date, clutch size, and hatching success), and (3) greater reproductive success. Yearling males with …

Philornis Fasciventris (Wulp) (Diptera: Muscidae): Description Of The Male, Larva And Puparium, With Notes On Biology And Host Association, Marcia S. Couri, Troy G. Murphy, Richard Hoebeke

Biology Faculty Research

The male, larva and puparium of Philornis fasciventris (Wulp) are described for the first time, as well as the larval habit and host association. The material was collected in Yucatan, Mexico in a nest of the turquoise-browed motmot, Eumomota superciliosa (Sandbach) (Coraciformes: Momotidae), first host record for this species. E. superciliosa is also a new host record for Philornis.

Frontmatter And Contents

Nebraska Beef Cattle Reports

ACKNOWLEDGMENTS

Appreciation is expressed to the following firms, associations, or agencies who provided grant support for research in the beef cattle program:

Abengoa Bionergy Corp., York, Neb.
Beef Board, Centennial, Colo.
Bioniche Lifes Services, Belleville, Ontario, Canada
Cargill Corn Milling, Blair, Neb.
CRINA, DSM Nutritional Products, Parsippany, N. J.
Dakota Gold, Sioux Falls, S. Dak.
Elanco Animal Health, Indianapolis, Ind.
Golden Harvest Seeds, Waterloo, Neb.
Intervet, Millsboro, Del.
J.C. Robinson Seed Co., Waterloo, Neb.
Montana State University, Boseman, Mon.
National Cattlemen’s Beef Association, Centennial, Colo.
Nebraska Beef Council, Kearney, Neb.
Nebraska Cattlemen, Inc., Lincoln, Neb.
Nebraska Corn Board, Lincoln, Neb. …

Utilization Of Dried Distillers Grains For Developing Beef Heifers, Jeremy L. Martin, Andrea S. Cupp, Richard J. Rasby, Karl V. Moline, Jeffrey W. Bergman, Mark Dragastin, Richard N. Funston

Nebraska Beef Cattle Reports

A two-year study evaluated feeding dried distillers grains (DDG) during heifer development on growth and reproductive performance. Supplements provided similar CP, energy, lipid, and fatty acids. Protein degradability of the supplements differed such that undegradable intake protein exceeded requirements of DDG heifers. Heifer pubertal development, artificial insemination (AI) pregnancy rate, and overall pregnancy rate were not affected by supplement. However, AI conception rate and AI pregnancy rate were improved by feeding DDG in the heifer development diet.

Progestin Concentrations Alter Follicle Characteristics And May Affect Quality Of Oocytes (Eggs), Bayli J. Slepicka, Jeremy L. Martin, Robin Ten Broeck, Michelle M. Baltes, Debra T. Clopton, Zachary C. Hall, Natalie C. Hart, Shantille G. Kruse, Robyn A. Longfellow, Jocelyn R. Wiarda, Karl V. Moline, Jeffrey W. Bergman, Robert A. Cushman, Brett R. White, Andrea S. Cupp

Nebraska Beef Cattle Reports

Cows were treated with two progestin concentrations to develop ovulatory follicles exposed to different hormone environments. Cows were assigned to Control Group receiving a CIDR for 7 days (4-6 ng/ml of progestin), or to MGA-14 Group receiving 5mg/head/day of MGA for 14 days (< 1 ng of progestin). Our hypothesis was that the MGA-14 treatment would develop larger, persistent follicles with less granulosa cells per follicle volume and may have altered gene expression profiles in oocytes and granulosa cells. Cows in the MGA-14 treatment had larger follicles and less granulosa cells per volume than controls, suggesting that their development mimicked persistent follicles and may be of poorer quality.

Summary Analysis Of Grazing Yearling Response To Distillers Grains, Terry J. Klopfenstein, Lyle Lomas, Dale Blasi, Marc Epp, Don C. Adams, Walter H. Schacht, Sarah Morris, Kristin Gustad, Matthew A. Greenquist, James C. Macdonald, Richard N. Funston

Nebraska Beef Cattle Reports

Eight grazing experiments were summarized reflecting yearling performance when supplemented with 4.0 or 7.5 lb distillers grains. Daily gains were increased 0.53 and 0.89 lb/day. Subsequent feedlot performance was not influenced by distillers grains supplementation on grass. In a six-trial summary, each 1.0 lb of distillers grains decreased forage intake by 0.5 lb. Economic return for each $1.00 spent on distillers grains yielded returns from $1.41 to $1.94.

Comparing A Modified Dry By-Product To Dry Distillers Grains With Solubles In Growing Calf Diets, Crystal D. Buckner, Terry J. Klopfenstein, Galen E. Erickson, Kyle J. Vander Pol, Kip K. Karges, Matthew L. Gibson

Nebraska Beef Cattle Reports

A growing trial was conducted to contrast a new by-product, Dakota Bran Cake (DBRAN), against dry distillers grains with solubles (DDGS) and evaluate the two by-products at two dietary inclusion levels on steer calf performance measurements. Diet treatments included 15% DBRAN, 30% DBRAN, 15% DDGS, and 30% DDGS, replacing a blend (70:30 ratio) of brome grass hay and alfalfa haylage (DM basis). Final BW, ADG, and DMI increased, while F:G decreased as the inclusion level for both of these by-products increased from 15 to 30% DM. DDGS significantly improved ADG and F:G compared to feeding DBRAN at both inclusion levels. …

Replacement Of Forage With Dried Distillers Grains Reduces Ruminal Methane Production, Eric J. Behlke, Tim Sanderson, Terry J. Klopfenstein, Jess L. Miner

Nebraska Beef Cattle Reports

Our objective was to determine how replacing forage with dried distillers grains plus solubles (DDGS) affects ruminal methane production. Methane produced by lambs and ruminal cultures was quantified following the substitution of brome hay with DDGS. In vitro and in vivo methane production is reduced when brome hay is replaced with DDGS. A reduction in methane production in vitro is not associated with a reduction in energy produced in the form of volatile fatty acids or dry matter disappearance. Decreased ruminal methane production would increase the retention of gross feed energy and may explain the increase in ADG realized when …

Dried Distillers Grains As Creep Feed For Yearling Beef Cattle Grazing Sandhill Range, Richard N. Funston, Don C. Adams, Matt Stockton, Roger K. Wilson, Rex Davis, James R. Teichert

Nebraska Beef Cattle Reports

Seventy-nine crossbred summer and fall-born steers and heifers were stratified by weight, calving group, and sex and assigned to treatment or control. Yearlings in the treatment group (TRT; n = 40) grazed native summer Sandhill range and had access to ad libitum dried distillers grains (DDG) pellet in a creep feeder for 54 days of a 63-day grazing period. Control (CON; n = 39) yearlings grazed in an adjacent pasture without DDG. Immediately after the grazing period, yearlings were placed in a feedlot and fed to a similar backfat endpoint. Individual forage and DDG intake estimates and animal ADG and …

Effect Of Feeding A By-Product Combination At Two Levels Or By-Product Alone In Feedlot Diets, Crystal D. Buckner, Galen E. Erickson, Terry J. Klopfenstein, Rick A. Stock, Kyle J. Vander Pol

Nebraska Beef Cattle Reports

A finishing cattle study was conducted to evaluate feeding a by-product combination at two inclusion levels, compared with these by-products fed alone, or a corn-based diet without by-products. Treatments consisted of 0% by-products, 30% WCGF (wet corn gluten feed), 15% WCGF with 15% WDGS (wet distillers grains with solubles), 30% WDGS, and 30% WCGF with 30% WDGS (DM basis). Final BW, ADG, and F:G were improved for cattle fed by-products, including the 60% Blend. No associative effects resulted from feeding WCGF and WDGS in a blend compared to these by-products fed alone. Feed conversion was similar for feeding a by-product …

Effects Of Different Inclusion Levels Of Wet Distiller Grains In Feedlot Diets Containing Wet Corn Gluten Feed, Pablo L. Loza, Kyle J. Vander Pol, Matthew A. Greenquist, Galen E. Erickson, Terry J. Klopfenstein, Rick A. Stock

Nebraska Beef Cattle Reports

A finishing trial was conducted to determine the optimum level of inclusion of distillers grains plus solubles (WDGS; Abengoa, York, Neb.) in diets containing 30% wet corn gluten feed (WCGF, Sweet Bran®, Cargill, Blair Neb.) Six WDGS inclusion levels (0, 10, 15, 20, 25, 30%DM) were compared with a dry rolled corn (DRC)/high moisture corn (HMC)-based diet. The inclusion of 30% Sweet Bran® in the diets improved DMI, ADG and feed conversion when compared to a corn-based diet. DMI tended to respond quadratically to WDGS inclusion level, ADG responded quadratically, while F/G was not affected by WDGS level. Diets containing …

Effects Of Roughage Source And Level With The Inclusion Of Wet Distillers Grains On Finishing Cattle Performance And Economics, Joshua R. Benton, Galen E. Erickson, Terry J. Klopfenstein, Kyle J. Vander Pol, Matthew A. Greenquist

Nebraska Beef Cattle Reports

A finishing trial was conducted to evaluate roughage source and level compared to no roughage inclusion in finishing diets containing 30% (DM basis) wet distillers grains plus solubles (WDGS). Roughage sources included alfalfa hay, corn silage, or corn stalks fed at either a low (4% alfalfa hay) or high (8% alfalfa hay) level and sources were included on an equal NDF basis. In general, higher roughage levels increased DMI, ADG, and profit. However, steers fed 3% corn stalks performed similarly to steers fed high levels of roughage. When roughage was eliminated from the diet, DMI, ADG, and profit were decreased …

Effect Of Corn Processing And Wet Distillers Grains Inclusion Level In Finishing Diets, Mark E. Corrigan, Galen E. Erickson, Terry J. Klopfenstein, Kyle J. Vander Pol, Matthew A. Greenquist, Matt K. Luebbe

Nebraska Beef Cattle Reports

Dry-rolled corn (DRC), high-moisture corn (HMC), or steam-flaked corn (SFC) was replaced with increasing levels of wet distillers grains with solubles (WDGS; 0, 15, 27.5, 40% DM) to determine if an interaction exists between corn processing method and WDGS level in finishing steer diets. Optimal feedlot performance was observed with 40%, 27.5%, and 15% WDGS in DRC, HMC, and SFC based diets, respectively. Fat thickness, DMI, and marbling score responded quadratically to WDGS level and incidence of liver abscess decreased linearly with increasing WDGS levels. In conclusion, a greater response to WDGS level was observed with less intensely processed corn.

Optimum Levels Of Dry Distillers Grains With Solubles For Finishing Beef Steers, Crystal D. Buckner, Galen E. Erickson, Terry L. Mader, Sheryl L. Colgan, Kip K. Karges, Matthew L. Gibson

Nebraska Beef Cattle Reports

A feedlot study was conducted to evaluate increasing levels of dry distillers grains with solubles (DDGS) in corn-based diets on steer performance. Treatments consisted of 0, 10, 20, 30, 40, and 50% (DM basis) DDGS dietary inclusion. Quadratic trends were observed for final BW and ADG with increasing levels of DDGS and 20% inclusion being the most improved. DMI was not changed with DDGS treatment level, while F:G was numerically optimum for 20% inclusion, although all DDGS levels had improved F:G compared to the 0% treatment. No differences in carcass characteristics were observed. Energy value of DDGS at 10 to …

Pen Density And Straw Bedding During Feedlot Finishing, Terry L. Mader, Sheryl L. Colgan

Nebraska Beef Cattle Reports

Two experiments evaluated effects of straw bedding (in sheltered and unsheltered facilities) and pen density (in unsheltered facilities) on cattle performance during winter/spring (mid-December to late March) seasons. Bedding had no effect on overall performance in the sheltered facilities, but performance improvements were noted from December through February in unsheltered facilities. Lowering pen density(increasing pen space per animal) improved performance and lowered mud condition scores on the animal and in the feedlot.

Feedlot Surface Conditions And Ammonia Emissions, Dawn M. Sherwood, Galen E. Erickson, Terry J. Klopfenstein, Dennis D. Schulte, Richard R. Stowell

Nebraska Beef Cattle Reports

Moisture and urine were applied to a feedlot surface in a 2x2 factorial design. Forced-air wind tunnels were used to determine differences in the net flux of ammonia (NH₃) being volatilized. Surface DM, pH and surface temperature were all analyzed within each treatment to determine effect on NH₃ net flux. No effects of urine were detected. There were differences detected due to moisture and moisture*time with the dry plots releasing significantly more NH3.

Effect Of Phase Feeding Protein On Cattle Performance And Nitrogen Mass Balance In Open Feedlots, Stephanie A. Quinn, Galen E. Erickson, Terry J. Klopfenstein, Richard R. Stowell, Dawn M. Sherwood

Nebraska Beef Cattle Reports

Two experiments using calves fed 176 days from November to May (WINTER) and yearlings fed 117 days from May to September (SUMMER) were conducted to compare conventional CP levels to phase-fed diets balanced for degradable intake protein and undegradable intake protein on performance and N volatilization. Phase fed diets were formulated to balance degradable intake protein and metabolizable protein. Phase feeding resulted in greater ADG and better F:G in WINTER and similar performance in SUMMER than traditional feeding methods. Nitrogen excretion was significantly reduced in both WINTER and SUMMER which translated into significantly less N volatilization without impacting N removed …

Changes In Gain Through The Feeding Period, James C. Macdonald, Terry J. Klopfenstein, Galen E. Erickson, Kyle Vander Pol

Nebraska Beef Cattle Reports

Three years of research trials were compiled to determine how weight gain changes throughout the feeding period. Results suggest that body weight and carcass weight increase linearly through the feeding period. While daily gain decreases on a body weight basis, it remains constant on a carcass basis suggesting that nearly all of the weight gain is transferred to the carcass at the end of the feeding period.

Performance Profile And Carcass Characteristics Of Steers Fed Optaflexx, Matthew A. Greenquist, Kyle J. Vander Pol, Galen E. Erickson, William J. Platter, Michael T. Van Koevering

Nebraska Beef Cattle Reports

An experiment evaluated the live BW response of steers being fed Optaflexx for various durations. The design consisted of two Optaflexx levels (0 vs. 200 mg per steer daily) and two Optaflexx feeding durations (28 or 42 days immediately prior to slaughter). However, Optaflexx was started on the same day (day 151 of the feeding period). Feeding 200 mg/steer daily of Optaflexx significantly (P<0.01) improved final BW, ADG, and F:G compared to controls. Feeding 200 mg /steer daily of Optaflexx provided 16.4 and 18.8 lb of added BW above controls for the 28 and 42 feeding duration, respectively, but most (approximately 87%) of this weight gain was within the first 28 days of the time that Optaflexx was fed.

Evaluation Of Excede® Given At Either Initial Processing Or Revaccination On Bovine Respiratory Disease And Pasture Vs. Feedlot Receiving Systems, Virgil R. Bremer, Galen E. Erickson, Terry J. Klopfenstein, Kyle J. Vander Pol, Matthew A. Greenquist, David R. Smith, Dee Griffin, Gary E. Sides, Lonty Bryant

Nebraska Beef Cattle Reports

An experiment (Exp. 1) was conducted to determine the effect of Excede® at arrival or at revaccination on morbidity, mortality, and gain in both feedlot and pasture receiving systems. A second experiment (Exp. 2) was conducted to determine the effect of feedlot and pasture receiving systems on animal health. In Exp. 1, no treatment differences were observed for initial or final BW, or ADG. In Exp. 1, initial BW, treatment, receiving system (pasture or feedlot); and buyer of cattle explained the cumulative incidence of bovine respiratory disease (BRD). The incidence of BRD in this study was 4.7%, 11.0%, and 13.8% …

Evaluation Of Synovex Choice Versus Revalor Implant Strategies In Beef Finishing Steers, Pablo L. Loza, Galen E. Erickson, Terry J. Klopfenstein, Bill Dicke, Robert J. Cooper, D. J. Jordon, J. Drouillard, Court Campbell

Nebraska Beef Cattle Reports

A commercial feedlot experiment was performed with the objective to compare a Synovex-Choice/ Synovex-Choice (Choice) implant strategy to a Revalor-IS/Revalor-S (Revalor) strategy on finishing steer performance and carcass characteristics. DMI did not differ between treatments). When calculated from carcass adjusted FW, ADG was not significantly different between Choice and Revalor implant strategies. Consequently, F/G was not significantly different when the Choice strategy was compared with Revalor strategy. No differences were observed for marbling scores or calculated yield grade) due to treatment. Based on carcass-adjusted performance, significant differences do not exist in performance between the two implant strategies.