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2009

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Articles 481 - 510 of 834

Full-Text Articles in Animal Sciences

Summary Of Grazing Trials Using Dried Distillers Grains Supplementation, William Griffin, Virgil R. Bremer, Terry J. Klopfenstein, Leslie Aaron Stalker, Lyle Lomas, Joe Moyer, Galen E. Erickson Jan 2009

Summary Of Grazing Trials Using Dried Distillers Grains Supplementation, William Griffin, Virgil R. Bremer, Terry J. Klopfenstein, Leslie Aaron Stalker, Lyle Lomas, Joe Moyer, Galen E. Erickson

Nebraska Beef Cattle Reports

A meta-analysis of grazing trials in which cattle were supplemented with dried distillers grains with solubles (DDGS) was conducted to determine effects of supplementation on average daily gain (ADG) and final BW in pasture grazing situations. Additionally, pen studies were evaluated to determine the effects of DDGS supplementation on cattle intake, forage replacement, ADG and final BW. In both the pasture and the pen studies, ADG and final BW increased quadratically with increased level of DDGS supplementation. Feeding DDGS decreased forage intake quadratically; however, total intake for cattle supplemented DDGS increased quadratically with increased level of supplementation.

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Feeding Corn Distillers Solubles Or Wet Distillers Grains Plus Solubles And Cornstalks To Growing Calves, Mallorie Wilken, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Joshua R. Benton Jan 2009

Feeding Corn Distillers Solubles Or Wet Distillers Grains Plus Solubles And Cornstalks To Growing Calves, Mallorie Wilken, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Joshua R. Benton

Nebraska Beef Cattle Reports

A growing study compared the effects of a diet consisting of corn distillers solubles (SOL) to the effects of a diet containing corn wet distillers grains plus solubles (WDGS) when ensiled with cornstalks (stalks). Four levels of SOL and WDGS were fed at 15%, 20%, 25% and 30% of diet DM. The effect of feeding ensiled WDGS and stalks was compared to feeding WDGS and stalks mixed fresh daily at 30% inclusion. WDGS-fed steers were more efficient than those fed solubles. Steer performance also improved with increased levels of byproducts. However, no inter¬action between byproduct and level was observed, except …

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Effects Of Feeding High Levels Of Byproducts In Different Combinations To Finishing Steers, Mallorie Wilken, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Joshua R. Benton Jan 2009

Effects Of Feeding High Levels Of Byproducts In Different Combinations To Finishing Steers, Mallorie Wilken, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Joshua R. Benton

Nebraska Beef Cattle Reports

A finishing experiment was conducted to determine the effects of feeding wet distillers grains plus solubles (WDGS) and wet corn gluten feed (WCGF) with or without corn on feedlot performance and economics. Six treatment diets were evaluated: 1) 83% corn; 2) 44% WDGS and 44% corn; 3) 33% WDGS, 33% WCGF and corn; 4) 33% WDGS, 33% WCGF and soyhulls; 5) 44% WDGS and 44% WCGF; and 6) 66% WDGS and grass hay. The highest average daily gain (ADG) and lowest feed-to-gain ratio (F:G) were observed with cattle fed 44% WDGS and corn. The poorest ADG and F:G were ob-served …

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An Economic Budget For Determining Co-Product Storage Costs, Josie Waterbury, Darrell R. Mark, Richard J. Rasby, Galen E. Erickson Jan 2009

An Economic Budget For Determining Co-Product Storage Costs, Josie Waterbury, Darrell R. Mark, Richard J. Rasby, Galen E. Erickson

Nebraska Beef Cattle Reports

Co-Product STORE — Storage To Optimize Ration Expenses — is a spreadsheet designed to quantify the costs of co-product storage. It allows producers to analyze and evaluate specific storage scenarios in response to changing market conditions using different storage methods. Two storage examples (bunker and silo bag) are evaluated to illustrate how the spreadsheet estimates storage costs.

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An Economic Overview Of Ethanol Co-Product Utilization In Nebraska, Josie Waterbury, Darrell R. Mark, Sarah Thoms, Galen E. Erickson, Terry J. Klopfenstein Jan 2009

An Economic Overview Of Ethanol Co-Product Utilization In Nebraska, Josie Waterbury, Darrell R. Mark, Sarah Thoms, Galen E. Erickson, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

To better understand co-product utilization, inclusion rates, pricing and storage strategies, Nebraska cattle producers were surveyed regarding their co-product feeding and pricing practices. Although nearly 91% of cattle on feed in Nebraska were being fed ethanol co-products in 2007, many types of co-products were being utilized from both ethanol plants in Nebraska and surrounding states. As illustrated by the price data collected, especially those for wet distillers grains plus solubles, opportunities existed for pricing and storage strategies, although more price variation was present in the data collected from the survey as compared to the prices reported by the Agricultural Marketing …

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Hydrogen Sulfide Gas Levels Post Feeding, Sarah J. Vanness, Nathan Meyer, Terry J. Klopfenstein, Galen E. Erickson Jan 2009

Hydrogen Sulfide Gas Levels Post Feeding, Sarah J. Vanness, Nathan Meyer, Terry J. Klopfenstein, Galen E. Erickson

Nebraska Beef Cattle Reports

Dietary sulfur level is associated with hydrogen sulfide gas (H2S) levels in the rumen. These studies quantified H2S levels at different times post feeding with or without added iron (Fe) or copper (Cu) to bind sulfur. In addition, the correlations of ruminal pH measurements to ruminal H2S gas levels were estimated. Correlations between ruminal pH and hydrogen sulfide levels were not large and Fe and Cu did not affect H2S levels.

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Ruminal Sulfide Levels In Corn Byproduct Diets With Varying Roughage Levels, Sarah Vanness, Nathan Meyer, Terry J. Klopfenstein, Galen E. Erickson Jan 2009

Ruminal Sulfide Levels In Corn Byproduct Diets With Varying Roughage Levels, Sarah Vanness, Nathan Meyer, Terry J. Klopfenstein, Galen E. Erickson

Nebraska Beef Cattle Reports

Ruminally fistulated steers with wireless pH probes were utilized to quantify ruminal pH plus hydrogen sulfide (H2S) levels produced at different times post feeding and to determine the effect of roughage level in high byproducts diets on hydrogen sulfide production. Because of variation in H2S levels, ruminal pH was not related to high H2S levels. When treatment means were used, pH and H2S levels were highly correlated. We observed lower H2S levels in diets with 7.5% or 15% grass hay compared with no roughage.

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Thanks Ivan Rush Jan 2009

Thanks Ivan Rush

Nebraska Beef Cattle Reports

Dr. Ivan Rush, as you retire, those of us in the Department of Animal Science reflect on your remarkable career. We also wish to say, “Thanks!” Ivan, thanks for 35 years of making us look good. To many of Nebraska’s cattlemen, you are the person who comes to mind when UNL is mentioned. Fortunately for us, your reputation for knowledge is based both on soundly designed experiments and the wisdom of practical experience with cattle. You have earned the respect of cattlemen in Nebraska, in nearby states, and even overseas. Thanks for your contributions to the development of computer programs …

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Moving Beyond Weight As The Only Predictor Of Breeding Readiness: Using A Breeding Maturity Index, Matthew Stockton, Roger K. Wilson, Richard N. Funston, Leslie Aaron Stalker, Dillon Feuz Jan 2009

Moving Beyond Weight As The Only Predictor Of Breeding Readiness: Using A Breeding Maturity Index, Matthew Stockton, Roger K. Wilson, Richard N. Funston, Leslie Aaron Stalker, Dillon Feuz

Nebraska Beef Cattle Reports

A maturity index (MI) was developed using data from Gudmundsen Sandhills Laboratory to predict a heifer’s optimal size for breeding. It was developed from observable information such as age, feeding regime, pre-breeding, birth and dam weights. The MI was the most precise predictor of actual percentage of mature weight versus using estimates developed from the herd’s estimated average weight or the dam’s mature weight. The MI also was a more accurate predictor of first pregnancy than the typically applied measure.

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The Effects Of Breeding Maturity On Dystocia And Rebreeding Of The Primiparous Beef Female, Matthew Stockton, Roger K. Wilson, Richard N. Funston Jan 2009

The Effects Of Breeding Maturity On Dystocia And Rebreeding Of The Primiparous Beef Female, Matthew Stockton, Roger K. Wilson, Richard N. Funston

Nebraska Beef Cattle Reports

Maturity Index (MI) was used in a Probit regression as an explanatory variable of dystocia, where dystocia was used in a Probit regression as an explanatory variable of rebreeding rates of primiparous cows from data collected on replacement heifers from the Gudmundsen Sandhills Laboratory. Dystocia was found to decrease from about 40% to 13% for heifers when the MI increased from 53 to 70, supporting the notion that maturity reduces the incidence of dystocia, resulting in an increase in the second pregnancy rate.

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Statistics Used In The Nebraska Beef Report And Their Purpose Jan 2009

Statistics Used In The Nebraska Beef Report And Their Purpose

Nebraska Beef Cattle Reports

The purpose of beef cattle and beef product research at UNL is to provide reference information that represents the various populations (cows, calves, heifers, feeders, carcasses, retail products, etc.) of beef production. Obviously, the researcher cannot apply treatments to every member of a population; therefore, he or she must sample the population. The use of statistics allows the researcher and readers of the Nebraska Beef Report the opportunity to evaluate separation of random (chance) occurrences and real biological effects of a treatment. Following is a brief description of the major statistics used in the beef report. For a more detailed …

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Effect Of Wet Distillers Grain Feeding Supplemented With Vitamin E On Case Life Of Beef, Lasika S. Senaratne, Chris R. Calkins, Amilton S. De Mello Jr., Gary A. Sullivan, Galen E. Erickson Jan 2009

Effect Of Wet Distillers Grain Feeding Supplemented With Vitamin E On Case Life Of Beef, Lasika S. Senaratne, Chris R. Calkins, Amilton S. De Mello Jr., Gary A. Sullivan, Galen E. Erickson

Nebraska Beef Cattle Reports

Aged (7 and 28 days) strip loins (m. Longissimus lumborum) from 90 yearling steers were used to assess the effect of supplemental vitamin E in diets containing wet distillers grains (WDG) with or without distillers solubles on surface discoloration of steaks during retail display. The greatest negative effects occurred as a result of aging, followed by the presence of solubles and then by the level of WDG. As discoloration increased, the importance of vitamin E in reducing discoloration also increased. Feeding WDG diets supplemented with vitamin E mitigates the surface discoloration of aged beef strip loin steaks during retail …

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Animal Science Alumni News, Winter/Spring 2008-2009 Jan 2009

Animal Science Alumni News, Winter/Spring 2008-2009

Department of Animal Science: Departmental News

Faculty Activities: From the Interim Department Head’s Desk
Current Faculty: Ivan Rush Retires
New Faculty: Daniel C. Ciobanu
American Society of Animal Science Celebrates Its Centennial
Emeriti Faculty: Bob Fritschen, Irv Omtvedt
Block and Bridle Annual Steak Fry
Block & Bridle Kids’ Day
SEECA Activities Update
Changes in Dissemination of News to our Supporters
Judging: 2008 Livestock Judging Team
Meat Judging Team
Equestrian Team: New Season, New Region
Alumni News Updates: Elizabeth (Beth) Maricle, B.S. ’06 , Dr. Steven Pollmann, Ph.D. ’79 , Dennis L. Nun, B.S. ‘74, M.S. ’75
Successful Swine Business Highlights Jim Pillen’s Career
Early Experience with …

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Cell Biology Symposium: The Role Of Microrna In Cell Function, Andrea S. Cupp, J. Matthews, E. Huff-Lonergan, D. M. Spurlock, D. Mclean Jan 2009

Cell Biology Symposium: The Role Of Microrna In Cell Function, Andrea S. Cupp, J. Matthews, E. Huff-Lonergan, D. M. Spurlock, D. Mclean

Department of Animal Science: Faculty Publications

A new symposium was introduced at the Centennial Meeting 23 of the American Society of Animal Science (ASAS) meeting during the joint annual meeting of ASAS and the American Dairy Science Association in Indianapolis, Indiana, on July 8, 2008. The purpose of the Cell Biology Symposium is to bring scientists with cutting edge basic research on a particular theme to the ASAS meeting. In the future we hope to expand this symposium by including a poster session for ASAS participants and invited speakers to interact. This year the theme of the Cell Biology Symposium was “The Role of MicroRNA in …

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Effects Of Social Interactions On Empirical Responses To Selection For Average Daily Gain Of Boars, C. Y. Chen, Rodger K. Johnson, S. Newman, Stephen D. Kachman, L. Dale Van Vleck Jan 2009

Effects Of Social Interactions On Empirical Responses To Selection For Average Daily Gain Of Boars, C. Y. Chen, Rodger K. Johnson, S. Newman, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Effects of social interactions on responses to selection for ADG were examined with records of 9,720 boars from dam lines (1 and 2) and sire lines (3 and 4) provided by Pig Improvement Company. Each line was analyzed separately. Pens contained 15 boars. Gains (ADG) were measured from about 71 to 161 d of age and weight from 31 to 120 kg. Models included fixed effects of contemporary groups and initial test age as a covariate, and random direct genetic (d), social genetic (c), social environmental (ce), and litter (lt) effects. Estimates of direct heritability with Model 1 (the full …

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Effects Of Chemical Composition Variation On The Dynamics Of Ruminal Fermentation And Biological Value Of Corn Milling (Co)Products, L. O. Tedeschi, Paul J. Kononoff, K. Karges, M. L. Gibson Jan 2009

Effects Of Chemical Composition Variation On The Dynamics Of Ruminal Fermentation And Biological Value Of Corn Milling (Co)Products, L. O. Tedeschi, Paul J. Kononoff, K. Karges, M. L. Gibson

Department of Animal Science: Faculty Publications

The objectives of this study were to evaluate the dynamics of gas production of several corn (co)products, to develop equations to predict the rate of ruminal fiber digestion, to estimate total digestible nutrients (TDN) and net energy for lactation (NEL), and to assess the stochasticity of chemical composition and nutritive value variability. Four corn milling (co)products were evaluated in this study: high protein dried distillers grains (HP-DDG), corn bran (BRAN) and dehydrated germ (GERM), and a dried distillers grains plus soluble produced with a low-heat drying process (BPX). Alfalfa hay was used as an internal standard feed in …

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The Effect Of Feeding High-Protein Distillers Dried Grains On Milk Production Of Holstein Cows, K. J. Hubbard, Paul J. Kononoff, A. M. Gehman, J. M. Kelzer, K. Karges, M. L. Gibson Jan 2009

The Effect Of Feeding High-Protein Distillers Dried Grains On Milk Production Of Holstein Cows, K. J. Hubbard, Paul J. Kononoff, A. M. Gehman, J. M. Kelzer, K. Karges, M. L. Gibson

Department of Animal Science: Faculty Publications

The objectives of this study were to evaluate the effects of feeding high-protein distillers dried grains (HPDDG) on rumen degradability, dry matter intake, milk production, and milk composition. Sixteen lactating Holstein cows (12 multiparous and 4 primiparous) averaging 80 ± 14 d in milk were randomly assigned to 1 of 2 dietary treatments in a 2 × 2 crossover design. A portion of forage and all soy-based protein in the control diet were replaced by HPDDG (20% dry matter). Milk production and dry matter intake were recorded daily and averaged for d 19 to 21 of each 21-d period. Milk …

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Influence Of Corn Hybrid And Processing Method On Nutrient Digestibility, Finishing Performance, And Carcass Characteristics, F. W. Harrelson, Matt K. Luebbe, N. F. Meyer, Galen E. Erickson, Terry J. Klopfenstein, David S. Jackson, W. A. Fithian Jan 2009

Influence Of Corn Hybrid And Processing Method On Nutrient Digestibility, Finishing Performance, And Carcass Characteristics, F. W. Harrelson, Matt K. Luebbe, N. F. Meyer, Galen E. Erickson, Terry J. Klopfenstein, David S. Jackson, W. A. Fithian

Department of Animal Science: Faculty Publications

A finishing trial and a digestion trial were conducted to evaluate the effects of corn hybrid and processing method on nutrient digestibility, finishing performance, and carcass characteristics. A 2 × 5 factorial arrangement of treatments was used for both trials. Factors included 2 processing methods, dry-rolled (DRC) or high-moisture (HMC), and 5 commercially available corn hybrids. The finishing trial (Exp. 1) utilized 475 yearling steers (379 ± 15 kg initial BW), stratified by BW into 2 blocks then assigned randomly to 1 of 60 pens (8 steers/pen). Treatments were assigned randomly to pens with 6 pens/treatment. Diets consisted of 67.5% …

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Effect Of Essential Oils, Tylosin, And Monensin On Finishing Steer Performance, Carcass Characteristics, Liver Abscesses, Ruminal Fermentation, And Digestibility, N. F. Meyer, Galen E. Erickson, Terry J. Klopfenstein, Matthew A. Greenquist, Matt K. Luebbe, P. Williams, M. A. Engstrom Jan 2009

Effect Of Essential Oils, Tylosin, And Monensin On Finishing Steer Performance, Carcass Characteristics, Liver Abscesses, Ruminal Fermentation, And Digestibility, N. F. Meyer, Galen E. Erickson, Terry J. Klopfenstein, Matthew A. Greenquist, Matt K. Luebbe, P. Williams, M. A. Engstrom

Department of Animal Science: Faculty Publications

A feedlot (Exp. 1) experiment was conducted to evaluate the effects of an essential oil mixture (EOM), experimental essential oil mixture (EXP), tylosin, and monensin (MON) on performance, carcass characteristics, and liver abscesses. A metabolism experiment (Exp. 2) was conducted to evaluate the effects of EOM, EXP, and MON on ruminal fermentation and digestibility in finishing steers. In Exp. 1, 468 yearling steers (398 ± 34 kg initial BW) were used in 50 pens (10 pens/treatment) and received their respective dietary treatments for 115 d. Five dietary treatments were compared in Exp. 1: 1) control, no additives (CON); 2) EOM, …

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Effects Of Sodium Chloride And Fat Supplementation On Finishing Steers Exposed To Hot And Cold Conditions, J. B. Gaughan, Terry L. Mader Jan 2009

Effects Of Sodium Chloride And Fat Supplementation On Finishing Steers Exposed To Hot And Cold Conditions, J. B. Gaughan, Terry L. Mader

Department of Animal Science: Faculty Publications

Three studies were conducted to evaluate the effects of supplemental fat and salt (sodium chloride) on DMI, daily water intake (DWI), body temperature, and respiration rate (RR) in Bos Taurus beef cattle. In Exp. 1 and 2, whole soybeans (SB) were used as the supplemental fat source. In Exp. 3, palm kernel meal and tallow were used. Experiment 1 (winter) and Exp. 2 (summer) were undertaken in an outside feedlot. Experiment 3 was conducted in a climate-controlled facility (mean ambient temperature = 29.9°C). In Exp. 1, three diets, 1) control; 2) salt (control + 1% sodium chloride); and 3) salt-SB …

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Board-Invited Review: Porcine Mucosal Immunity Of The Gastrointestinal Tract, Thomas E. Burkey, K. A. Skjolaas, J. E. Minton Jan 2009

Board-Invited Review: Porcine Mucosal Immunity Of The Gastrointestinal Tract, Thomas E. Burkey, K. A. Skjolaas, J. E. Minton

Department of Animal Science: Faculty Publications

The gastrointestinal tract (GIT) constitutes one of the largest immunological organs of the body. The GIT must permit absorption of nutrients while also maintaining the ability to respond appropriately to a diverse milieu of dietary and microbial antigenic components. Because of the diverse population of antigenic components within the GIT, a sophisticated mucosal immune system has evolved that relies on collaboration between the innate and adaptive arms of immunity. The collaborative, mucosal immune effort offers protection from harmful pathogens while also being tolerant of dietary antigens and normal microbial flora. Knowledge with respect to porcine mucosal immunity is important as …

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Effects Of Feeding Three Types Of Corn-Milling Coproducts On Milk Production And Ruminal Fermentation Of Lactating Holstein Cattle, J. M. Kelzer, Paul J. Kononoff, A. M. Gehman, L. O. Tedeschi, K. Karges, M. L. Gibson Jan 2009

Effects Of Feeding Three Types Of Corn-Milling Coproducts On Milk Production And Ruminal Fermentation Of Lactating Holstein Cattle, J. M. Kelzer, Paul J. Kononoff, A. M. Gehman, L. O. Tedeschi, K. Karges, M. L. Gibson

Department of Animal Science: Faculty Publications

Two experiments were conducted to determine the effects of feeding 3 corn-milling coproducts on intake, milk production, ruminal fermentation, and digestibility of lactating Holstein cows. In experiment 1, three corn-milling coproducts were fed at 15% of the diet dry matter (DM) to 28 Holstein cows averaging (±SD) 625 ± 81 kg of body weight and 116 ± 33 d in milk to determine effects on DM intake and milk production. In experiment 2, the same rations were fed to 4 ruminally fistulated, multiparous Holstein cows averaging 677 ± 41 kg of body weight and 144 ± 5 d in milk …

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Effect Of Sorting And Optaflexx Supplementation On Feedlot Performance And Profitability Of Long Yearling Steers, W. A. Griffin, T. J. Klopfenstein, G. E. Erickson, D. M. Feuz, K. J. Vander Pol, Matthew A. Greenquist Jan 2009

Effect Of Sorting And Optaflexx Supplementation On Feedlot Performance And Profitability Of Long Yearling Steers, W. A. Griffin, T. J. Klopfenstein, G. E. Erickson, D. M. Feuz, K. J. Vander Pol, Matthew A. Greenquist

Department of Animal Science: Faculty Publications

A 2-yr study was conducted using 200 long yearling steers/yr (436 ± 30 kg) to determine the effect on performance and economics of sorting by BW at feedlot entry and feeding 200 mg/steer of Optaflexx (OPT) daily for the last 28 d. At feedlot entry, steers were allotted into 1 of 4 treatments in a 2 × 2 factorial arrangement: sorted or unsorted with or without OPT. Sorted steers were placed into 1 of 3 groups—1) heavy steers (32%; 468 kg), 2) medium steers (44%; 432 kg), or 3) light steers (24%; 399 kg)—and were fed for 97, 118, or …

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Influence Of Corn Hybrid Traits And Processing Method On Nutrient Digestibility, Matt K. Luebbe, G. E. Erickson, T. J. Klopfenstein, W. A. Fithian Jan 2009

Influence Of Corn Hybrid Traits And Processing Method On Nutrient Digestibility, Matt K. Luebbe, G. E. Erickson, T. J. Klopfenstein, W. A. Fithian

Department of Animal Science: Faculty Publications

Two experiments were conducted to determine the effects of corn hybrid and processing method on the site and extent of nutrient digestibility and ruminal fermentation. Treatments consisted of 2 processing methods, dry-rolled corn (DRC) and high-moisture corn (HMC), and 3 hybrids, H-8562 (1), 33P67 (2), and H-9230 (3), in a 2 × 3 factorial arrangement. In Exp. 1, six ruminally cannulated crossbred steers (436 ± 8 kg) were used in a 6 × 6 Latin square design. Total tract DM, OM, and starch digestibility (STD) were greater (P < 0.10) for HMC compared with DRC. A hybrid × processing method interaction (P < 0.10) was observed for propionate concentration and the acetate-to-propionate ratio. In Exp. 2, two ruminally and duodenally fistulated steers were used to determine the site and extent of nutrient digestion using the mobile bag technique at 2 ruminal incubation times. Ruminal STD was not different (P = 0.14) among hybrids but was greater (P < 0.01) for HMC compared with DRC. Postruminal and total tract STD were greater (P < 0.01) for hybrids 1 and 3 than for hybrid 2, and were greater (P < 0.01) for HMC than DRC. In both experiments the geometric mean diameter and geometric SD were influenced (P < 0.05) by both hybrid and processing method. More intense processing methods or selection of hybrids with softer kernels will result in greater digestibility and ruminal propionate concentrations. Digestibility of corn samples can be characterized using the mobile bag technique but particle size can influence results.

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Effects Of Time Of Transporting Prior To Sale Date On Selling Weight Of Weaned Steer Calves, L. M. Kovarik, Matt K. Luebbe, Joshua R. Benton, Galen E. Erickson, Richard J. Rasby Jan 2009

Effects Of Time Of Transporting Prior To Sale Date On Selling Weight Of Weaned Steer Calves, L. M. Kovarik, Matt K. Luebbe, Joshua R. Benton, Galen E. Erickson, Richard J. Rasby

Department of Animal Science: Faculty Publications

Eighty-eight crossbred weaned steer calves (250 + 26 kg) were used to evaluate weight loss (shrink) when transported to a mock sale barn on differing days prior to sale. The calves were weaned 14 days and fed free choice grass hay and 0.9 kg of DDGS at UNL’s Dalbey-Halleck Research Unit. Two days before initiation of treatments all calves were fed grass hay ad libitum and initial BW were recorded on two consecutive days. Calves were assigned randomly to treatment as a completely randomized design. On d 2, 1d restricted and 1d ad libitum treatments were transported 150 km to …

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Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May Jan 2009

Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May

Department of Animal Science: Faculty Publications

We characterized 37 new microsatellite markers in the Pacific lion-paw scallop (Nodipecten subnodosus) and tested for cross-amplification in four other species. Genetic diversity was estimated using 24 individuals from the Lagoon Ojo de Liebre, B.C.S., Mexico. Allelic richness varied from 5 to 27 alleles per locus and the average expected heterozygosity was 0.76. Ten loci exhibited significant departure from Hardy–Weinberg equilibrium likely due to the presence of null alleles. Sixteen of these markers cross-amplified in closely related N. nodosus, while little or no amplification was observed in three Argopecten species.

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Birds Of The Great Plains: Family Pelecanidae (Pelicans), Paul A. Johnsgard Jan 2009

Birds Of The Great Plains: Family Pelecanidae (Pelicans), Paul A. Johnsgard

Birds of the Great Plains (Revised Edition, 2009) by Paul Johnsgard

White Pelican (American White Pelican)

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Birds Of The Great Plains: Family Accipitridae (Hawks, Eagles, And Harriers), Paul A. Johnsgard Jan 2009

Birds Of The Great Plains: Family Accipitridae (Hawks, Eagles, And Harriers), Paul A. Johnsgard

Birds of the Great Plains (Revised Edition, 2009) by Paul Johnsgard

White-tailed Kite
Swallow-tailed Kite
Mississippi Kite
Goshawk
Sharp-shinned Hawk
Cooper Hawk
Red-tailed Hawk
Red-shouldered Hawk
Broad-winged Hawk
Swainson Hawk
Ferruginous Hawk
Harris Hawk
Golden Eagle
Bald Eagle
Marsh Hawk

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Birds Of The Great Plains: Family Pandionidae (Ospreys), Paul A. Johnsgard Jan 2009

Birds Of The Great Plains: Family Pandionidae (Ospreys), Paul A. Johnsgard

Birds of the Great Plains (Revised Edition, 2009) by Paul Johnsgard

Osprey

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Birds Of The Great Plains: Family Phasianidae (Quails, Pheasants, And Partridges), Paul A. Johnsgard Jan 2009

Birds Of The Great Plains: Family Phasianidae (Quails, Pheasants, And Partridges), Paul A. Johnsgard

Birds of the Great Plains (Revised Edition, 2009) by Paul Johnsgard

Bobwhite
Scaled Quail
Ring-necked Pheasant
Gray Partridge

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