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Effect Of A Combination Of Diethylstilbestrol And Methyltestosterone And Protein Level In The Diet On Performance And Carcass Traits In An Unselected Line Of Swine, L. E. Lucas, E. R. Peo, Jr., A. J. Svajgr

Department of Animal Science: Faculty Publications

Two experiments involving 372 barrows were conducted to evaluate the effects of orally administered diethylstilbestrol (DES) and methyltestosterone (MT) with varying levels of dietary protein.

Gain, Feed Conversion And Carcass Traits Of Swine Fed Under Two Nutritional Regimes, P. J. Cunningham, T. E. Socha, E. R. Peo, Jr., R. W. Mandingo

Department of Animal Science: Faculty Publications

Data involving 505 Gene Pool boars, barrows and gilts and 126 Hampshire boars and gilts fed two nutritional diets were presented. One diet consisted of high lysine corn, minerals and vitamins (10% protein) while the other diet was a 14% protein corn-soy diet.

Factors For Extending In-Progress Lactation Records To A 305-Day Equivalent, Jeffrey F. Keown, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Paper for Presentation at the 64th Annual Meeting of the American Society of Animal Science. The data consisted of 204,558 complete Holstein lactations in 2,100 herds compiled by the New York Dairy Records Processing Laboratory from 1959 to 1969. All lactation records had to have a 9th or 10th test day present to be regarded as complete. The generalized least squares analysis used a model including effects due to the mean, herd-year and season-age-stage of freshening which were assumed to be fixed. The error term included the random effects due to the cow and residual. Generalized least squares estimates for …

Reproductive Efficiency And Viability In Two Bos Indicus And Two Bos Taurus Breeds In The Tropics Of India And Colombia, L. (Lemka) Hamed, R. E. Mcdowell, L. Dale Van Vleck, H. Guha, J. J. Salazar

Department of Animal Science: Faculty Publications

Records from two herds in India and two in Columbia representing respectively two breeds of Bos indicus (Hariana and Deshi) and two Bos taurus breeds—Blanco Orejinegro (BON) and Costeño Con Cuernos (CCC) were evaluated for breeding efficiency and viability. Average age at first calving was 52.1, 46.3, 39.5 and 40.7 months for Hariana, Deshi, CCC and BON. Season of birth did not influence age at calving. Ranking for calving interval was similar, average 479, 418, 396 and 382 days with season effects significant (P<.05) for only Deshi. BON and CCC had fewer days open but much shorter lactation periods, average 73 and 157, thus days carried calf in lactation were similar for all breeds. Percent of time dry per calving interval was high for all breeds, 44.2, 36.7, 64.1 and 81.0 for Hariana, Deshi, BON and CCC. Average annual mortality of females by 12 months of age was 23.6% for Hariana, 17.0% Deshi and 27.0% BON. In the same herds 46.4%, 51.1% and 49.0% of females born alive lived to first calving and annual losses among cows were 18.0%, 17.0%, and 21.0%; therefore, affording little opportunity for selection among females. Temperament, as determined by response to the milking process with and without the calf present, showed all the breeds were similar in this respect. Environmental effects were most important for all traits but genetic differences were indicated for age at first calving and milk yield. On a theoretical basis little gain could be expected in net dairy merit from crosses between the Columbian and Indian breeds.

Genetic Aspects Of Beef Production Among Holstein-Friesians Pedigree Selected For Milk Production, L. L. Calo, R. E. Mcdowell, L. Dale Van Vleck, P. D. Miller

Department of Animal Science: Faculty Publications

To explore the potential of cattle to produce both milk and beef, the genetic aspects of beef production among Holstein-Friesian bulls pedigree selected for milk were studied. The data included growth records of 504 bulls (DPT) by 120 sires (SPT) pedigree selected for progeny testing by American Breeders Service, 1964 to 1971. DPT bulls with proofs had an average predicted difference for milk (PMD) of +180 kilograms. The daughter average was 7,273 kg per lactation under varying herd conditions. Sires accounted for 10% of the variation in average daily gain (ADG), 10% in daily gain per 100 kg body weight …

Adams: On Reduction Of Rigid Body Mechanics To Particle Mechanics, Michael A. Day

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

From only a brief study of the history of science, one realizes that science is a dynamic enterprise. The Ptolemaic theory of celestial motion was replaced by the Copernician theory of the solar system, the phlogiston theory was replaced by the theory of oxidation brought forth by the discoveries of Priestly and Lavoisier, the mechanics of Galileo was replaced by the mechanics of Newton, Newton's was replaced by the mechanics of Einstein. But do all such replacements basically have the same conceptual structure? It seems that they do not. For when the phlogiston theory was replaced by the theory of …

Eutrophication Of Small Reservoirs In Eastern Nebraska, Mark J. Hammer, Gary L. Hergemader

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Numerous small reservoirs constructed in Nebraska are used for recreation and many more are being planned. While these impoundments seemingly alleviate the long standing need for recreational waters, many existing impoundments exhibit symptoms of accelerated eutrophication after only a few years of existence. It is natural that such lakes, impounding nutrient-rich water, should be productive and generate nuisances that interfere with projected recreational uses. Unfortunately, neither this fact nor the lack of feasible methods for nutrient control were perceived prior to providing recreational facilities at the reservoir sites.

Rates of eutrophication, nutrient sources, and eutrophication control have been examined in …

Quantitative Analysis Of Swine Chromosomes (Mammalia: Suiidae), J.M. Rary, R.L. Murphree

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The primary objectives of this study were: (1) to provide quantitative descriptions of the chromosomes of the domestic swine (Sus scrota: 2n=38), the European wild swine (2n=36) and the domestic-European wild hybrid (2n=37); and (2) to define chromosomal differences between the three karyotypes.

The diploid (2n) chromosome number of the domestic swine has been shown to be 38 (Ruddle, 1961; Makina et al., 1962; McConnell et al., 1963). The European wild swine of the Tellico Wildlife Management Area of Tennessee has been shown to have a diploid chromosome number of 36 (Rary et al., 1968). European …

Water Quality And Bioassay Study From Crawford National Fish Hatchery, Jerry E. Taylor

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Water from Crawford National Fish Hatchery, Crawford, Nebraska is of high quality for rearing rainbow (Salmo gairdncrii) and brown trout (Saimo trutta). Analyses were conducted for two months during the summer of 1971 with mean results as follows: Acidity 16 mg/l, alkalinity 202 mg/l, ammonia 0.6 mg/l, calcium hardness 201 mg/l, carbon dioxide 23 mg/l, dissolved oxygen 8 mg/l, nitrates 6 mg/l, nitrites 0.02 mg/l, pH 7.6, temperature 16° C. and turbidity 4.6 J.T.V .. Bioassay studies indicated lethal concentrations of ammonia and carbon dioxide to brown trout to be 12 mg/l and 150 mg/l respectively.

Cognitive Egocentricity Of The Child Within Piagetian Developmental Theory, Violet Kalyan-Masih

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

In popular usage of the term, an egocentric person is a conceited and boastful individual who is preoccupied with his own self-importance. There is, however, a fundamental difference between the cognitive egocentricity of a child as defined by Piaget, and the egocentricity of an adult as is commonly understood. A child is egocentric because he cannot take someone else's point of view; an adult is egocentric because he will not - in one case, it is cognitive inability; in the other, social insensitivity. "Cognitive egocentrism," according to Piaget, “…stems from a lack of differentiation between one's own point of view …

The Concept Of Caste: Cross-Cultural Applications, Bruce Labrack

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The concept of caste has undergone a thorough re-examination by social scientists in the past three decades. The result has been a redefinition of caste and the application of the term 'caste' to social situations found outside the Indian subcontinent. A review of some of the varieties of caste reported in Japan, Africa, Tibet, Korea and North America are outlined and brief historical summaries illustrate the differing conditions under which these systems arose. Utilizing a broad definition of caste, the structural components and concomitants of castes are compared using the features of birth-ascription, endogamy, ritual pollution and traditional occupation. These …

The Normative Incompleteness Of Social Theories, Werner Leinfellner

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

1. There are two main reasons to use a metalanguage, when we analyse a given informal language (a) of science. The first reason is to avoid semantic antinomies of the liar type. The concept of a metalanguage, widely used since Tarski (1956: 152-268), proposed to split up the normal informal scientific language (a) into an object language (b) and a metalanguage (c). Only within the metalanguage (c) we can speak about the object language (b). Ordinary informal languages are according to Tarski "closed languages." Closed languages make no differences between semantic expressions such as "true," which refer to expressions of …

Attempted Resolutions Of The "Allais" Paradox, Edward D. Booth

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A long standing debate among decision and value theorists concerns the consistency of individual as well as collective preferences. Two traditional yet diametrically opposed positions have been staked out. A von Neumann. Morgenstern decision theorist (hereafter reference to the von Neumann. Morgenstern system will be abbreviated NM) maintains that individual preferences are exhibited behavioristically and that from empirical observations alone a consistent set of axioms can be (or have been) constructed which describe and predict individual decision making and, in addition, may be regarded as norms of future behavior (von Neumann and Morgenstern, 1953: 31-33). Others have denied that such …

The Role Of The Professional Geographer In Geographic Learning, Salvatore J. Natoli

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Professional geographers have had a traditional interest and role in geographic learning. Specifically, the professional geographer referred to is the university or college professor who considers upper division teaching, graduate level teaching, and research as his primary responsibilities.

Experiences and attitudes occupy key positions in determining broader participation of professional geographers in geographic learning.

The professional geographer must view his role within a broader context .. that of the entire educational experience. In addition he must reexamine the goals of education and his roles within them rather than rest upon his scholarly credentials. He must help to provide the public …

Drift Of Terrestrial Arthropods In An Irrigation Canal Following A Wide-Area Application Of Ulv Malathion, Dewey Urbauer, K. P. Pruess

Department of Entomology: Faculty Publications

Numbers of arthropods drifting in an irrigation canal were recorded at 30-min intervals during and after an upstream application of ULV malathion. Flower-visiting and parasitic Hymenoptera were the first insects to increase; a bimodal drift pattern resulted from an interruption in the spray application. Diptera exhibited a delayed response but the numbers collected, especially Paracantha culta (Wiedemann), suggest high susceptibility. Ants occurred in large numbers over a long period, but mortality was probably low. Miridae and Cicadellidae were probably more susceptible than Orthoptera and adult Odonata but had similar delayed drift patterns. Tetragnathidae were the most, and Thomiscidae the least, …

Control Of Leaf-Feeding Insects On Yellow-Poplar, E. A. Heinrichs, E. E. Burgess, Ellis L. Matheny Jr.

Department of Entomology: Faculty Publications

Yellow-poplar, Liriodendron tulipifera L., also known as the tulip-poplar, is an important source of pulpwood and saw timber, and it is widely used as a shade tree. Numerous insect species attack the foliage of yellow-poplar. In 1965, Odontopus calceatus (Say) was first observed seriously damaging yellow-poplar in Tennessee (Russell and Stanley 1967). Defoliation was so severe at the University of Tennessee Oak Ridge Forest Experiment Station that growth reduction was attributed to this pest (Buckner 1972). In 1967, observations by one of us (E.A.H.) indicated that several other insects attack yellow-poplar leaves during the spring. Infestations of the aphid Macrosiphum …

Ecological Distribution Of Breeding Waterfowl Populations In North Dakota, Robert E. Stewart, Harold A. Kantrud

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The distribution of breeding waterfowl populations on various wetland habitat types was investigated in North Dakota during 1967-69. Data were obtained by stratified random sampling techniques. The total wetland acreage in North Dakota was estimated to be about 3.2 million acres. Natural basin wetlands comprised about 77 percent of the acreage and 91 percent of the number of wetlands in the state and were utilized by about 76 percent of the state's breeding duck population. Among the four biotic regions of the state, numerical and areal composition of wetlands varied considerably. Natural basin wetlands varied from a low of about …

An Incident Of Fenthion Mosquito Control And Subsequent Avian Mortality, Robert Seabloom, Gary Pearson, Lewis Oring, James Reilly

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Mass mortality among migratory birds at Grand Forks, North Dakota, was attributed to a mosquito control operation employing the insecticide fenthion. The factors involved may have included the toxicity of the pesticide for birds, the method of application and coincidence with the peak of the spring warbler migration.

Characterization Of A Fatty Acid Synthetase From Corynebacterium Diphtheriae, Herman W. Knoche, Kirston E. Koths

Department of Biochemistry: Faculty Publications

A fatty acid synthetase from Corynebacterium diphtheriae has been purified to a specific activity of 450 nmoles of malonyl coenzyme A incorporated per min per mg. The enzyme is optimally active in 0.5 M phosphate buffer. C. diphtheriae appears to be the most primitive organism having a multienzyme complex for fatty acid synthesis.

Palmityl Coenzyme A Inhibition Of Fatty Acid Synthesis, Herman Knoche, Theodore W. Esders, Kirston Koths, Konrad Bloch

Department of Biochemistry: Faculty Publications

The effects of acyl-CoA derivatives (C₈ to C₂₀) on the activity

of the fatty acid synthetases from yeast and Corynebacterium

diphtheriae have been examined. Both enzyme

systems are inhibited by the longer chain acyl thioesters

(C₁₆ to C₂₀) and protected against this inhibition by bovine

serum albumin (BSA). Identical relief from acyl-CoA inhibition

is provided by the 6-0-methylglucose-containing

lipopolysaccharide (MGLP), from Mycobacterium phlei. It

is shown that MGLP forms a stable complex with palmitylCoA.

This interaction accounts for the BSA-like effects of

the polysaccharide. BSA and MGLP have two further effects

on the fatty …

Nature And Cause Of Yellow Film Occurring On Dairy Equipment, R. B. Maxcy

Department of Food Science and Technology: Faculty Publications

A yellow film of milkstone developed on a laboratory system that simulated unclean stainless steel surfaces. Cursory washing or presoiling with phospholipids and subsequent growth of Pseudomonas sp. in a milk film produced the yellow color in 1 to 2 days. Sequence of treatments, microenvironmental conditions, and microbial growth contributing to the formation of the yellow film were determined, Pseudomonas sp. was isolated from laboratory developed yellow films and from milk soil deposits on farm equipment. The overall requirements for the production of yellow films were: a) inadequate cleaning or a presoil of phospholipids, b) growth of Pseudomonas sp., c) …

Nitrate And Phosphate Content Of Ground And Surface Waters Of The White River Drainage, Northwest Nebraska, Charles E. Baker

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Selected stream and ground water sites in the White River Drainage Basin were sampled for phosphate and nitrate content. The sampling procedure was designed to elucidate the impact of each tributary drainage area on water quality of the White River.

Concentration of nitrates found in surface waters was 5.7 ͞+ l. 7 5 ppm (͞x ± sd), while that of phosphates was 0.67 ± 0.33 ppm. Ground water contained higher concentrations of both contaminants, 8.81 ± 0.66 ppm for nitrates and 0.82 ± 0.20ppm for phosphates. The White River increased in nitrate content at each downstream sampling site. Values ranged …

The Case For Probabilistic Grammars, H. L. Berghel

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The purpose of this paper is to briefly examine two proposed extensions of statistical/probabilistic methodology, long familiar to the sciences, to linguistics. On the one hand it will be argued that the invocation of probabilistic measures is indispensable to any sensible criteria of grammatical adequacy, and on the other hand it will be suggested that probabilistic automata can be relevant to studies of language behavior.

1. The fully adequate (categorial/generative) grammar is one with which there corresponds an algorithm by means of which we can (recognize/ generate) all and only those syntactically correct sequences in the corresponding language. At this …

Preliminary Analysis Of The Bison Bones From The Hudson-Meng Site, Sioux County, Nebraska, Dale S. Hoffman, Wayne L. Farrens, Daryl L. Mcdonald

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

History of Exploration

The Hudson-Meng archaeological site (Nebraska No. 25 SX 115) is located in northwestern Sioux County, Nebraska. It occurs in a drainage from a still-active spring on the property of Mr. Albert Meng. Preliminary excavation was begun in the fall of 1968 by Dr. Larry D. Agenbroad of Chadron State College after the site was brought to his attention by Mr. Bill Hudson, a local amateur archaeologist. Large scale excavation was begun in the spring of 1971 by volunteer students and faculty from Chadron State College.

Description of the Site

When work was halted in the fall of …

Sir James Paget's Contribution To Cancer Genetics, Anne J. Krush

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Present day clinicians usually rely upon the most recent medical literature to assist them with the diagnosis and treatment of diseases in their patients. The historian, on the other hand, delves into the past and is often rewarded by finding detailed and meticulous descriptions of diseases in the older medical literature. This is especially true of the medical writings of the 19th century before the development of mechanical devices (such as the stethoscope and the electrocardiograph) and modern laboratory tests.

Many conditions and diseases have been named for scientists who were supposed either to have discovered them or initially described …

New Horizons In Professional Responsibility, Richard B. Allen

Nebraska Law Review

In the last five years the organized bar in the United States—represented by the American Bar Association, which provided the leadership, and by the state bars, which have given staunch support to the ABA—has moved forward to two major and sweeping decisions for change and progress and appears well on the way to a third. The first to come to fruition was the Code of Professional Responsibility, the landmark reformulation of the ethical standards of the legal profession adopted by the ABA House of Delegates in 1969, and now in effect either as court-adopted rules or as rules adopted by …

Groundwater: From Windmills To Comprehensive Public Management, Richard S. Harnsberger, Jarret C. Oeltjen, Ralph J. Fischer

Nebraska Law Review

I. Preface

II. Introduction

III. The First Period—Territorial Days to 1920

IV. The Second Period—The Impetus for Change Emerges in the '20s, '30s, and '40s … A. Mechanization and Electrification … B. Drought and Depression … C. Profitability of Irrigation … D. Knowledge about Groundwater Sources … E. Adoption of a Legal Rule to Govern Conflicts between Adjoining Owners—Olson v. City of Wahoo … F. Legislative Response and Public Opinion

V. The Third Era—1950 to 1972 … A. Rapidity of Growth … B. Overview of Developments in Specific Areas … C. Declining Water Tables … D. Judicial Rules Governing …

National Institute Of Justice: Another Layer Of Federal Government, J. James Exon

Nebraska Law Review

In this article, Governor J. James Exon addresses himself to problems presented by the proposed National Institute of Justice. The National Institute of Justice, an idea developed by Bert H. Early, executive director of the American Bar Association, is designed to consolidate resources and energies toward modernization of the American legal system. The institute would be an independent, nonprofit, federally chartered corporation. Structurally, it would be governed by a board of undetermined size, the members appointed by the President with the advice and consent of the Senate. Functionally, the institute would gather and disseminate information, diagnose the principal bottlenecks in …

Nonpartisan Unicameral—Benefits, Defects Reexamined, William Riley

Nebraska Law Review

I. Introduction

II. Background … A. Early History … B. The New Experience

III. Current Debate

IV. Compilation and Analysis … A. Political Bases … B. Theories in Conflict … 1. Partisanship Arguments … a. Leadership and Organization … b. Narrowing the Issues … c. Fixing Responsibility … d. Preserve an Organized Opposition … e. Strengthen the Parties … f. Legislature Dead-End Politically … g. Separate Vote for Nonpartisanship … 2. Nonpartisanship Arguments … a. Little Distinction between the Parties … b. Avoid National Controversies … c. Small Population … d. Forty-Nine Senators in One House … 3. Conflicting Arguments …

Negligence—Defense Of Unavoidable Accident: Moats V. Lienemann, 188 Neb. 452, 197 N.W.2d 372 (1972), James S. Mitchell

Nebraska Law Review

In Moats v. Lienemann, the Nebraska Supreme Court affirmed a district court jury's determination that the automobile collision out of which the plaintiff's negligence action arose was not an "unavoidable accident". An unavoidable accident "has been defined as an inevitable accident, an event or an occurrence which could not have been prevented by any human foresight or ordinary prudence, the result occurring without fault. " The purpose of this casenote is to examine the conflicting considerations that concern the trial court when a defendant attempts to employ the unavoidable accident defense. In numerous jurisdictions, there is an increasing reluctance …