Animal Sciences Commons^™

The Vertebrate Fauna Of The Upper Permian Of Niger—Iii, Morphology And Ontogeny Of The Hindlimb Of Moradisaurus Grandis (Reptilia, Captorhinidae), F. Robin O’Keefe, Christian A. Sidor, Hans C. E. Larsson, Abdoulaye Maga, Oumarou Ide

Biological Sciences Faculty Research

We describe hindlimb elements of the large captorhinid Moradisaurus grandis (Reptilia: Captorhinidae) recently collected from the Upper Permian Moradi Formation of north-central Niger. This description is based primarily on an associated partial skeleton comprising a hemimandible, vertebral column, and partial left and nearly complete right hindlimb. Additionally, we report on a well-preserved, articulated, and essentially complete juvenile pes that provides important information on the ontogeny of the captorhinid tarsus. The hindlimb of Moradisaurus is stout and more massively built than in any other known captorhinid. The femur displays several features interpreted as adaptations to the demands of large body size, …

Benchmarking The Differences Between Cow And Beef Muscles, Laura B. Mink, Chris R. Calkins, D. Dwain Johnson, Alex M. Stelzleni, Bucky L. Gwartney

Nebraska Beef Cattle Reports

Some muscles from the different populations of cows evaluated have similar chemical and physical properties to muscles from A-maturity, USDA Select grade cattle. Perhaps those muscles from cows could be utilized in a manner that would increase their value. Fifteen carcasses were selected from five populations (fed beef cows, non-fed beef cows, fed dairy cows, non-fed dairy cows, and Select grade beef) and nine muscles per carcass were characterized. Most muscles from cows were darker in color, had higher pH values, and had greater heme iron content than muscles from younger cattle, which may be undesirable to consumers. Supplemental technology …

Effects Of Grazing Residues Or Feeding Corn From A Corn Rootworm-Protected Hybrid (Mon 863) Compared With Reference Hybrids On Animal Performance And Carcass Characteristics, K. J. Vander Pol, Galen E. Erickson, N. D. Robbins, L. L. Berger, C. B. Wilson, Terry J. Klopfenstein, E. P. Stanisiewski, G. F. Hartnell

Department of Animal Science: Faculty Publications

One grazing and two feeding experiments were conducted to compare the feeding value of corn residue or corn grain from a genetically enhanced corn hybrid (corn rootworm-protected; event MON 863) with nontransgenic, commercially available, reference hybrids. In Exp. 1, two 13.7-ha fields, containing corn residues from either a genetically enhanced corn rootworm- protected hybrid (MON 863), or a near-isogenic, nontransgenic control hybrid (CON) were divided into four equal-sized paddocks. Sixty-four steer calves (262 ± 15 kg) were stratified by BW and assigned randomly to paddock to achieve a stocking rate of 0.43 ha/steer for 60 d, with eight steers per …

Utilization Of Corn Co-Products In The Beef Industry, Galen E. Erickson, Terry J. Klopfenstein, Don C. Adams, Richard J. Rasby

Department of Animal Science: Faculty Publications

Corn milling co-products are expected to increase dramatically in supply. Two primary types of milling processes currently exist, resulting in quite different feed products. The dry milling process produces distillers grains plus solubles, and the wet milling process produces corn gluten feed. These feeds can be marketed as wet feed, or they can be dried and marketed as either dry corn gluten feed or dry distillers grains with or without solubles. For the purposes of this article, only wet corn gluten feed (WCGF) and wet distillers grains plus solubles (WDGS) will be discussed. The majority of plant expansions are dry …

An Evaluation Of Production And Economic Efficiency Of Two Beef Systems From Calving To Slaughter, R. V. Anderson, Richard J. Rasby, Terry J. Klopfenstein, R. T. Clark

Department of Animal Science: Faculty Publications

A 3-yr experiment was conducted with cows and their calves to evaluate resource inputs, animal performance, and carcass characteristics of two production systems. In the control system, cows (CON; n = 99/yr) grazed pasture and were fed hay during the winter, and CON steer calves were finished in the feedlot for 211 d after weaning. In the treatment system (TRT; n = 100/yr), cows grazed pasture and crop residue during the winter and were fed hay. Treatment steer calves grazed crop residue after weaning, grazed pasture in the spring and summer, and were finished in the feedlot for 90 d. …

Comparative Effects Of The Sorghum Bmr-6 And Bmr-12 Genes: Ii. Grain Yield, Stover Yield, And Stover Quality In Grain Sorghum, A. L. Oliver, J. F. Jenkins, R. J. Grant, T. J. Klopfenstein, H. D. Jose

Department of Animal Science: Faculty Publications

Nearly 3 million hectares of grain sorghum [Sorghum bicolor (L). Moench] are harvested in the USA each year. It may be possible to add value to crop and animal systems by enhancing the digestibility of the stover residue by the use of brown midrib (bmr) genes if grain can be maintained. The objectives of this study were to evaluate the effect of bmr-6 and bmr-12 genes on grain yield of sorghum and to evaluate the effect of the bmr genes on stover yield and quality in these genetic backgrounds: ‘Wheatland’, ‘Redlan’, RTx430, Tx623, Tx630, Tx631, and the …

Block & Bridle Club Annual 2004-2005

Block and Bridle Annual (1933–2021)

Historian Comments Animal Science Department Chairman Address Block and Bridle President's Address University of Nebraska-Lincoln Background CASNR Background Animal Science Department Options Animal Science Faculty Block and Bridle History Calendar of Events Membership List Club Officers Initiates Advisors Senior Tributes 2003-2004 Banquet Treasurer Report Secretary Report 4-H Involvement Beef Pit Big Red Welcome Steak Fry Little Aksarben Holiday Gathering National Convention Kid's Day Big Red Beef Show Agricultural Education Contests Little MAEC 2005 Honoree Programs Honors Banquet Meats Judging Livestock Judging Equestrian Team Block and Bridle Members A Few Final Thoughts

Nebraska Swine Report 2005, Duane Reese

Nebraska Swine Reports

Health: PRRSV Negative Herds: A Survival Analysis. Production Management: Shoulder Ulcers in Sows; Out-of-Feed Events in Grow-Finish Pigs: Causes and Consequences ; Teeth Clipping — Have You Tried to Quit? Nutrition: Research Proposal Summary: Effects of Nutrition During Gilt Development on Sow Lifetime; Productivity of Two Prolific Maternal Lines ; Effect of Increasing Dietary Crude Protein Concentration on Growth Performance and Serum Insulin-Like Growth Factor-I Concentration in Barrows and Gilts ; Development of a NCR-42 Vitamin-Trace Mineral Mix Genetics: Incidence and Inheritance of Splayleg in Nebraska Litter Size Selection Lines Business Management: How Big is “Big Enough” to Make a …

Wpa News 74 (2005), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2005), number 74

Published by the World Pheasant Association

Ec05-185 Grazing Winter Wheat In Nebraska, Tom Holman, Drew J. Lyon, David D. Baltensperger, Ivan G. Rush, Ray E. Weed

University of Nebraska-Lincoln Extension: Historical Materials

Grazing cattle on winter wheat, often prior to grain harvest, is common throughout the southern Great Plains. Grazing generates about $50 million in income for Texas wheat producers and reduces the risk of growing wheat by providing a substantial income source other than grain. Benefits can be realized by grazing prior to the primary environmental risk period for drought, heat stress, and hail, all of which frequently reduce grain yield while having limited impact on forage production. Cattle also are grazed on winter wheat fields in western Nebraska and the surrounding region. Typically in Nebraska, fall forage would be used …

Towards The Establishment Of Landbird Migration Monitoring Networks In The United States, Jay D. Carlisle, C. John Ralph

Intermountain Bird Observatory Publications and Presentations

Migration monitoring of landbirds, in its various forms, is a well-established research endeavor across much of North America. While monitoring efforts at individual sites have contributed much to our knowledge of the biology of migrants, these studies have limited potential for population monitoring and for addressing certain broader questions about migrants. Meanwhile, there is still much to be learned about the habitat use, conservation needs, population trends, demographics, and general stopover ecology of migrants. As a model for migration monitoring networks, the establishment and operation of monitoring and research networks for other purposes in avian research has met with much …

Estimates Of Genetic Parameters For Feed Intake, Feeding Behavior, And Daily Gain In Composite Ram Lambs, K. M. Cammack, Kreg A. Leymaster, T. G. Jenkins, Merlyn K. Nielsen

Department of Animal Science: Faculty Publications

Our objective was to estimate genetic parameters for feed intake, feeding behavior, and ADG in composite ram lambs (¹⁄₂ Columbia, ¹⁄₄ Hampshire, ¹⁄₄ Suffolk). Data were collected from 1986 to 1997 on 1,239 ram lambs from approximately 11 to 17 wk of age at the U.S. Meat Animal Research Center near Clay Center, NE. Feeding equipment consisted of an elevated pen with an entrance chute that permitted access to the feeder by only one ram lamb at a time, with disappearance of feed measured by an electronic weighing system. Ram lambs were grouped 11 per pen from 1986 to 1989, …

Phosphorus And Dairy/Beef Nutrition, Larry D. Satter, Terry J. Klopfenstein, Galen E. Erickson, J. Mark Powell

Department of Animal Science: Faculty Publications

Phosphorus (P), a required nutrient for all livestock, has numerous essential physiological functions in the body that include energy transfer (ATP), structure of bone, teeth, and membranes, and buffering pH changes in the rumen (salivary phosphate). Ruminants use a larger proportion of dietary P than nonruminants because rumen microbes produce phytase, the enzyme that hydrolyzes P from phytate. The majority of P in most grains is in phytate form, a P form largely unavailable to swine and poultry.

Comparison Of A Corn Silage Hybrid With High Cell-Wall Content And Digestibility With A Hybrid Of Lower Cell-Wall Content On Performance Of Holstein Cows, S. K. Ivan, R. J. Grant, D. Weakley, J. Beck

Department of Animal Science: Faculty Publications

We hypothesized that substituting a corn hybrid with high cell-wall content and high neutral detergent fiber (NDF) digestibility (HCW) for a hybrid with lower cellwall content and lower NDF digestibility (LCW) would improve feed intake and milk production in lactating Holstein cows. There was a 3.6 percentage unit difference in NDF content and a 4.1 percentage unit difference in 30-h in vitro NDF digestion between the 2 corn hybrids. In trial 1, 40 cows (12 primiparous) ranging in milk production from 24.1 to 44.0 kg/d, following a 2- wk preliminary period, were used in a crossover design with 2-wk periods. …

Unexpected Estimates Of Variance Components With A True Model Containing Genetic Competition Effects, L. D. Van Vleck, J. P. Morota

Department of Animal Science: Faculty Publications

Simulation of a model containing genetic competition effects was initiated to determine how well REML could untangle variances due to direct and competition genetic effects and pen effects. A two-generation data set was generated with six unrelated males that were each mated to five unrelated females to produce 300 progeny, from which 30 females (one per mating in previous generation) were mated to six unrelated males to produce 300 more progeny. Progeny were randomly assigned, six per pen, to 50 pens per generation. Parameters were V_g, V_c, C_gc, V_p, and V_{e …}

Genetic And Environmental Factors Associated With Incidence Of Infectious Bovine Keratoconjunctivitis In Preweaned Beef Calves, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

Infectious bovine keratoconjunctivitis (IBK) is one of the most economically important diseases in preweaned calves. This study examined the health records of 45,497 calves over a 20-yr period to determine environmental and genetic factors influencing the incidence of IBK. Three data sets were analyzed with an animal model. The first data set (n = 41,986) evaluated environmental factors and genetic differences among nine purebred (Angus, Braunvieh, Charolais, Gelbvieh, Hereford, Limousin, Pinzgauer, Red Poll, and Simmental) and three composite breeds (MARC I, MARC II, and MARC III). Weaning weights of calves diagnosed with IBK were 8.9 kg lighter (P < 0.05) than weights of healthy calves. Incidence of IBK was related to age of the calf and the seasonal life cycle of the face fly (Musca autumnalis …