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Genetic Engineering Of Livestock Improvement, Gordon E. Dickerson

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

Genetic engineering requires clearly defined objectives, adequate genetic variability and effective methods of selection. In a given production-marketing System, relative importance of genetic change in alternative traits can be estimated from expected effects on cost per unit of output, using available biological and economic information. Diversity among existing breeds and their crosses is a primary and quickly usable genetic resource, and its management for future needs is a public concern. Better physiological and biochemical understanding of the genetic controls of animal development and function is important to permit more effective selection for efficiency of animal production under diverse environments. Long-term …

G86-783 Complete Rations -- Should You Feed Them?, Foster G. Owen

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the advantages and disadvantages of feeding complete rations to dairy herds.

Using the complete ration system for feeding dairy cows has become increasingly popular. Nutritionists generally consider it the ideal method of feeding dairy cattle. Milk production per cow can be maximized, and feed and labor costs minimized, with this system. However, the necessary equipment is expensive and may be excessive for loose-housed herds of less than 100 cows.

Columnaris Disease Of Fishes, G. L. Bullock, T. C. Hsu, E. B. Shotts Jr.

United States Fish and Wildlife Service: Publications

Columnaris disease is an acute to chronic bacterial infection that affects anadromous salmonids and virtually all species of warmwater fishes. Davis (1922), who first described the disease, named it columnaris because the causal bacterial cells seen in wet mounts of affected gills and fins were arranged in columnar aggregations. Ordal and Rucker (1944) were the first to isolate the causal organism and, based on cellular morphology, identified it as a myxobacterium. Organisms classified in the order Myxobacterales are long, thin gram-negative rods that are motile on agar media by a creeping or flexing motion. They have a life cycle composed …

Feedinge Cologyo F Sandhillc Ranesd Urings Pring Migrationin Nebraska, Kenneth Reinecke, Gary L. Krapu

United States Fish and Wildlife Service: Publications

We studied the food habits of midcontinent sandhill cranes (Grus canadensis) during spring 1978 and 1979 at their primary staging area along the Platte River and compared population food and foraging habitat requirements with availability. Crane diets varied among the 3 principal foraging habitats, but not between sexes, ages, or years. Cranes feeding in cornfields ate >99% corn (total dry wt); those feeding in native grasslands and alfalfa fields consumed 79-99% invertebrates. The composite diet of cranes was 97% corn and 3% invertebrates, including 2% earthworms, 0.5% snails, and 0.5% insects. Presumably, corn provided energy, whereas invertebrates from grasslands and …

G86-797 Causes Of Vaccination-Immunization Failures In Livestock, Duane Rice, E. Denis Erickson, Dale Grotelueschen

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses reasons why vaccinations fail to provide immunity against disease, and how to prevent this from happening.

To comprehend the many reasons for vaccine failure, it is important to understand how animals and humans have the ability to resist infectious diseases. It is also important to know what a disease is and how it affects the animal.

According to Stedman's Dictionary, disease is an interruption, cessation or disorder of body functions, systems or organs. Diseases may be obvious even to the untrained eye, or detectable only by sophisticated testing procedures (subclinical disease). Serious irreversible damage may be …

Ec86-261 Goals For Profitable Dairying, Jeffrey F. Keown, Gerald Bodman, Douglas Jose

University of Nebraska-Lincoln Extension: Historical Materials

Circular Extension 86-261: This circular is about the goals for profitable dairying, and focuses on the objective as the operator of the dairy farm business, such as establishing strategies that will result in long term profit.

Effects Of Adding Fat To The Sow Lactation Diet On Lactation And Rebreeding Performance, G. C. Shurson, M. G. Hogberg, N. Defever, S. V. Radecki, E. R. Miller, Win Butler

Department of Animal Science: Faculty Publications

One-hundred-three multiparous sows were randomly assigned to one of two lactation diets containing either no supplemental animal fat (C) or 10% added fat (F) during two seasons, summer (S) and winter (W), in a 2 X 2 factorial arrangement of treatments. Sows were placed on their respective dietary treatments 1 wk prior to farrowing and were fed these diets ad libitum throughout the 28-d lactation period. Weekly feed intake and total feed intake were not affected by diet or season, while weekly metabolizable energy (ME) intake tended to be higher during wk 1 and 3, and was higher (P<.04) during wk 2 for sows fed diet F. Sow weight loss from farrowing to 21 d of lactation and to weaning (28 d) were unaffected by diet or season. Average pig birth weight was .15 kg higher (P<.O1) for pigs born during S compared with those born in W. Sows receiving diet F had heavier litters at 21 d (P<.01) and heavier average pig 21-d weights (P<.O1). This was primarily due to the 13.1% increase (P<.04) in estimated milk yield and the higher fat concentration (P<.O01) of milk consumed by the pigs nursing sows fed diet F. Interval between weaning and re-breeding was shortened by 5.9 d (P<.01) for sows during W than during S, and tended to be lower for sows fed diet F (7.3 d) compared with that of sows fed diet C (9.7 d). Farrowing percentage was unaffected by diet but tended to be increased during W (78.9%) compared with S (65.1%). No differences between mason or diet were noted on number of pigs born or number of pigs born alive in the subsequent parity. No diet • season interactions were observed, except for crude protein concentration of sow's milk, which was higher in milk from sows fed diet C during season W (P<.04).

Drought Policy In The U.S. And Australia: A Comparative Analysis, Donald A. Wilhite

National Drought Mitigation Center: Faculty Publications

Federal and state governments in the United States and Australia have come to play a key role in attempts to mitigate the impact of drought. Government actions have usually taken the form of loans and grants to individual citizens, businesses, and municipalities experiencing the hardship of drought. Most of these actions have occurred in an environment of crisis management, rather than as a result of clearly stated policy objectives. Based on a review and evaluation of recent drought policy in the United States and Australia, recommendations are offered on ways to improve the United States’ approach. A national drought plan …

Ec86-113 A Guide For Planning And Analyzing A Year-Round Forage Program, Steven S. Waller, Lowell E. Moser, Bruce Anderson

University of Nebraska-Lincoln Extension: Historical Materials

Efficient grazing management programs cannot succeed without proper stocing rates. However, proper stocking rate alone will not insure a successful grazing program. Successful grazing management only occurs when all factors affecting production are manipulated properly: season of use; kind, class, and/or combination of animals; grazing distribution; grazing program; fertilization; pest control; and water management as well as stocking rate. The following suggestions in this circular are a guide to initial planning of new pastures and the modification of existing grazing programs.

Mp51 Distillers Grains, Glen Aines, Terry Klopfenstein, Rick Stock

University of Nebraska-Lincoln Extension: Historical Materials

In the conventional production of alcohol from grain for fuel, byproducts are produced with excellent feeding value for ruminants. Appropriate use of these byproducts aids the efficient production of animals and enhances the economics of alcohol production. In the fermentation of corn to produce alcohol, the starch in the corn is converted to alcohol and carbon dioxide. The nutrients in the corn other than starch are concentrated about three times because corn is about two-thirds starch. Even though starch is high in energy, the one-third of the corn remaining in the byproduct after fermentation contains as much energy per pound …

G86-814 Using Ram Lambs For Breeding, Ted Doane

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide explains how ram lambs can be most efficiently used in a breeding program and provides management suggestions for a successful program.

Are you planning to use a ram lamb this breeding season? If so, you should consider the capabilities and limitations of ram lambs.

It may be true that some well-grown, aggressive, vigorous, highly fertile ram lambs can settle 50 ewes and maybe more. However, these rams are exceptions. A good rule to follow for practical ram management is 15 to 20 ewes for a ram lamb and 35 to 50 ewes for a mature ram.

Ec86-417 Promoting Breastfeeding, Katharine P. Riddle

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 86-417 is about the promotion of breastfeeding.

1986 Nebraska Swine Report

Nebraska Swine Reports

1986 Nebraska Swine Report

4-H 197 Home Building Blocks : Year 3, Jeanette Friesen, Kathleen Parrott, Shirley Niemeyer

Nebraska 4-H Clubs: Historical Materials and Publications

Extension Service 4-H 197: Home building Blocks Year 3; Project planning and evaluation sheet, what you learn, what you do, be a wall wizard, dyeing to know about fabric, would you work with wood, message on metal, and sharing with others.

G86-815 Reproductive Problems In Rams, Alan R. Doster, Dale M. Grotelueschen

University of Nebraska-Lincoln Extension: Historical Materials

Systematic examination of all males to be used for breeding can prevent reproductive failure, minimize nonpregnant ewes, and increase numbers of lambs born early during lambing season.

The importance of using only highly fertile, healthy rams in breeding programs cannot be overemphasized. This is especially true in the case of small producers where only one ram is required. The ram represents an often neglected part of sheep production.

G86-821 Weaned Pig Management And Nutrition (Revised August 1992), Duane Reese, Mike Brumm

University of Nebraska-Lincoln Extension: Historical Materials

Temperature, space, health considerations, dietary nutrient allowances, feeding management and more are covered here. The weaning age of pigs farrowed in Nebraska is variable. While the average age at weaning is about four weeks, the range is from two to eight weeks. However, industry surveys indicate that more than 50 percent of the pigs in the United States are weaned at 28 days of age or earlier, with the majority weaned between three and four weeks of age. This trend towards earlier weaning is expected to continue with advances in management, housing, health and nutrition. Earlier weaning (under 28 days) …

Economic Evaluation Of Breeding Objectives In Dairy Cattle. Intensive Specialized Milk Production In Temperate Zones, R. E. Pearson

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

In previous world congresses (Cunningham, 1974; Pearson, 1982) methods of estimating weights and choosing traits to include in the selection of objectives were discussed. A more recent discussion of objection functions for breeding decisions is in Allaire and Thraen (1985). This paper will focus more on the specific traits to be included in the selection objective for intensive milk production in temperate zones and on experimental evidence of relative economic importance.

Block And Bridle Annual, 1986

Block and Bridle Annual (1933–2021)

Table of Contents:

Staff
Contents & Emblem
Animal Science Dept. Chairman Address
President's Address
Meeting Calendar
Activities Calendar
Treasurer's Report
Advisors
Animal Science Faculty
Faculty Secretaries
Graduate students
Animal Science Liason
Block & Bridle Members
Block & Bridle Initiates
Block & Bridle Officers
Block & Bridle Executives
Block & Bridle Seniors
State Fair Awards
Steak Fry
Little AK-SAR-BEN
Queen Coronation
Regional Meetings
Kids Day
Ham sales
Christmas Coffee
Quadrathalon
Nebraska Big Red Beef Show
Quarter Horse Show
Meats Contest
1985 Honors Banquet
1985 Honoree
Past Honorees
Horse Judging Team
Livestock Judging Teams
Meats Judging Team
Index of Advertisers

Impact Of Industry Structure, Intensity Of Production And Resource Constraints On Research Breeding Objectives, J. W. Wilton

World Congress on Genetics Applied to Livestock Production: 3rd (1986)

The importance of the structure of the beef industry with respect to crossbreeding programs and division into cow-calf and feedlot segments; intensity of production with respect to market standards, feeds and labour; and resource constraints with respect to feed, labour, land and capital; are discussed and quantified where possible. The use of discounted gene flow provides estimates of relative expression rates which differ with crossbreeding programs and relative sizes of populations of purebred and commercial cattle. The importance of feedback from feedlot to cow-calf to purebred operation is emphasized, for both discounted expression rates and modelling approaches. The composition and …

Child Poverty And Child Welfare In Nebraska, Ann Coyne, Herb Grandbois

Center for Public Affairs Research (UNO): Publications

Children represent the fastest growing group of poor people in the United States today. An increase in the number of children living with one parent, an increase in unwed teenage pregnancy, a lack of child support, lower wages and benefits for women than for men, the cost of child care, and unemployment and underemployment in two-parent families contribute to child poverty. Policy options ranging from changing eligibility requirements for assistance programs to establishing state funded health insurance programs are presented. Methods of responding to abused and neglected children have changed dramatically. The effect of PI 96-272 on the child welfare …

Abideth Forever? Global Use Of Semiarid Lands In The Interwar Years, J. M. Powell

Great Plains Quarterly (through 2013)

I have undertaken a highly selective Cook's Tour in this article, attempting to integrate our understanding of semiarid lands around the globe. The focus is concentrated on the period between the two great wars when new nationalisms, old imperial networks, and the burgeoning ambitions of scientists combined to create new systems of land use in the semiarid regions, but a few sorties have been made into earlier and later periods to assist the interpretation of specific projects. My own country, Australia, is used as the starting point for the tour, but the influence of American Donald Worster's Dust Bowl (1979) …

Genetic Evaluation Of Holsteins In Columbia, B. Y. Abubakar, R. E. Mcdowell, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Original data consisted of 31,777 records of progeny of 1442 sires for calvings between 1975 and 1983. Unadjusted means for milk yield (kg), days in milk, days dry, calving interval, days carried calf, and age at calving were 4281, 267, 88, 421, 145, and 36.6. Estimated total variance for first lactation milk yield by Henderson's method 3 was 1,385,436 kg 2 with sire and error variances accounting for 1.8 and 98.2%. Heritabilities for milk yield, lactation length, age at calving, and days carried calf were .07, .06, 2.59, and .01. High estimate for age was attributed to confounding of sires …

The Effects Of Rate Of Change In Body Weight On Tissue Development And Meat Quality Of Youthful Bulls, J. D. Crouse, Chris R. Calkins, S. C. Seideman

Department of Animal Science: Faculty Publications

Forty-eight Angus bulls about 13 mo of age were used to study the effects of rate of change in live weight on muscle fiber, collagen and sensory characteristics of meat. Bulls were fed a finishing diet before treatment, and assigned to three treatments: 1) negative, 2) zero or 3) positive weight gain for 30 or 60 d prior to slaughter. Treatments were imposed by adjusting feed intake. Seventy-two hours after slaughter, carcasses were observed for quality and yield grade characteristics and longissimus muscle samples were obtained for fiber type, collagen and sensory characterization. Carcass lean at the 12th rib interface …

The Effects Of Sorbic Acid In High Moisture Sorghum Grain Diets On Performance Of Weanling Swine, J. D. Crenshaw, E. R. Peo, Jr., A. J. Lewis, N. R. Schneider

Department of Animal Science: Faculty Publications

Three experiments were conducted with 288 weanling pigs to determine the effects of sorbic acid (SA) added to dry (DSG), high moisture (HMSG) or reconstituted (RSG) sorghum grain diets on gains and feed conversion. Dietary treatments for Exp. 1 were: DSG with and without .1% SA; HMSG with .1% SA and RSG with .1% SA. The DSG diets were fed ad libitum. The HMSG and RSG diets were mixed fresh from oxygen-limiting storage every 3 and 7 d and were also fed ad libitum. Pigs fed RSG diets consumed more feed than those fed HMSG diets (P<.08). Performance was similar between pigs fed DSG diets without or with SA. Dietary treatments for Exp. 2 and 3 consisted of sorghum grains reconstituted to two moisture contents (MC), with additions of either 0, .05 or .I% SA. The diets were mixed fresh from oxygen-limiting storage every 7 d and fed ad libitum. In Exp. 2 and 3, pigs fed the higher MC diets were more efficient in feed conversion (P<.03) than those fed the lower MC diets. In Exp. 3, a quadratic response (P<.04) for average daily gain and average daily feed intake was observed for the main effect of SA. Feed efficiency improved (P<.05) in a linear fashion as SA levels were increased in the diets. The results of these experiments indicate that weanling pigs may be fed HMSG or RSG without adverse effects on pig performance. Inconsistencies in pig response to SA were observed. Feed temperature measurements indicated that SA prevented heat production in the RSG diets for at least 10 d after removal from oxygen-limiting storage, while diets without SA became moldy within 5 d.

Soil Science Research Report - 1986

Soil Science Research Reports

Wheat Experiments

Effect of Long Term Seed and Broadcast P on Winter Wheat Yields .......... 1

Effect of Method and Time of P Application on Winter Wheat Grain yield .......... 3

Corn Experiments

BKR Demonstration Farm - Comparison of Lime Sources and Rates in a Corn-Soybean Rotation .......... 5

Effect of Band Spacing on the Effectiveness of Dual Placed N and P on Corn Yield and P Uptake .......... 8

Effect of Broadcast Phosphorus on P Response of Ridge-Planted Corn .......... 10

High Yield Corn-Soybean-Wheat Rotation Study .......... 12

The Influence of Soil Bulk Density, Soil Water Regime and Fertilization …

G86-794 Enterotoxemia In Lambs, Dale M. Grotelueschen, Duane N. Rice

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the causes, clinical signs, diagnosis, treatment, and prevention methods of this potentially fatal disease.

Enterotoxemia, which is also known as "overeating" or "pulpy kidney" disease, is a highly significant and costly disease problem for the sheep industry. Proper preventive practices are strongly recommended to sheep producers in order to avoid death loss from this disease.

The word "enterotoxemia" can be broken down into three parts that can be an aid in understanding the disease. The term "entero" refers to intestine; "tox" refers to toxin or poison; and "emia" refers to blood. Thus, from "intestinal toxin in the …

Ec86-112 Origins, Adaptation, And Types Of Corn, W. L. Brown, M. S. Zuber, L. L. Darrah

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 86-112: Origins, adaptations, and types of Corn; origin of corn, and types of corn

Ec86-220 1985-1986 Dairy Report

University of Nebraska-Lincoln Extension: Historical Materials

Circular Extension 86-220: This circular is about the milk production, breeding, and management. It also explains the economic planning for the dairying production.

Ec86-111 Producing Proso In Western Nebraska, Lenis Alton Nelson

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 86-111: Producing Proso in Western Nebraska; what is Proso, selecting a field for Proso, preparing the field, choosing a variety, planting the crop, emergence problems, combatting weeds, insect and disease problems, harvesting Proso, and marketing Proso

Illustrated Guide To Integrated Pest Management In Rice In Tropical Asia, W. H. Reissig, Elvis A. Heinrichs, J. A. Litsinger, K. Moody, L. Fieldler, T. W. Mew, A. T. Barrion

Entomology Papers from Other Sources

In the past, farmers in tropical Asia grew traditional rice cultivars and either relied primarily on cultural, mechanical, and physical methods of pest control or practiced no pest control. Pesticide application was limited because the yield potential of traditional varieties was too low to justify additional investments. Although pests destroyed part of each crop, severe outbreaks or epidemics were rare.

The widespread introduction of high-yielding rice cultivars in Asia in the last two decades and the associated changes in production practices have improved conditions for insects, diseases, weeds, and rodents. The higher yield potential of the new rices also made …