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Diammonium Citrate And Diammonium Phosphate As Sources Of Dietary Nitrogen For Growing-Finishing Swine, G. F. Wehrbein, P. E. Vipperman Jr., E. R. Peo, Jr., P. J. Cunningham

Department of Animal Science: Faculty Publications

Many scientists are concerned about the possibility Of a protein shortage in the near future. Since the pig will be placed in direct competition with man for many of the proteins presently used in feeds, it has become increasingly important to determine if other sources of nitrogen can serve as a replacement for some of the non-essential amino acid nitrogen in natural proteins.

Genetic Aspects Of Calving Ease, James S. Brinks

Department of Animal Science: Faculty Publications

Several trends in cattle production and marketing are becoming evident. Leaner and perhaps heavier muscled slaughter cattle will be in demand through the chain from consumers back through retailers, packers, feeders and finally the producers. Emphasis on growth in the feedlot will continue. Thus, the feedlot and carcass characteristics desired point towards fairly large, heavier muscled cattle. At the producer level, increased emphasis is being placed on matching cow size, milk level, and overall biological type to available resources. Thus, the trend for maternal herds in the Great Plains point towards an adapted, probably moderate size, and milking cow that …

Effect Of Feeding-Fasting Interval On Finishing Pigs: Blood Urea And Serum Lipid, Cholesterol And Protein Concentrations, T. L. Veum, W. G. Pond, E. F. Walker Jr., L. Dale Van Vleck

Department of Animal Science: Faculty Publications

A system of restricted feeding in which feed is entirely withheld for intervals of 24, 48 or 72 hr. following a 24-hr. period of ad libitum feeding in continuous sequence throughout the finishing period depresses weight gain and efficiency of feed utilization in direct relation to duration of the fasting period and has marked associated effects on carcass measurements, gland and organ weights and a small effect on fatty acid composition of the back fat (Veum et al., 1970). Cohn (1963) and Leveille and Hanson (1965, 1966) have shown marked changes in metabolism of nutrients and in body composition associated …

Systematic Infections For The Assay Of Plant Viruses, Myron K. Brakke

Department of Plant Pathology: Faculty Publications

The first infectivity assays of plant viruses relied on the percentage of inoculated plants becoming systemically infected. The use of systemic infections for assays became unfashionable, however, after the discovery of local lesions and the demonstration that their numbers depended on virus concentration. Continued emphasis on local lesions over the years led to the widely held belief that systemic infections could not be used for a reliable and accurate assay of plant viruses. There was never any good statistical evidence for this viewpoint. In fact, no thorough investigation has been published of the accuracy of "systemic assays" of plant viruses, …

Effect Of Temperature On Food And Water Intake And Rumen Fermentation, W. R. Gengler, F. A. Martz, H. D. Johnson, G. F. Krause, Leroy Hahn

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The purpose was to determine volatile fatty acid concentrations at normal (18 C) and high (35 C) ambient temperature, and to determine the effect of increasing the rumen temperature with an intra-ruminal heating coil in an 18 C ambient temperature.

Some Ecological Relations Of Fairy Shrimps In Alkaline Habitats Of Nebraska, D. B. Mccarraher

Nebraska Game and Parks Commission: Staff Research Publications

Ecological studies on the distribution of fairy shrimps have been made from 246 sites in the sandhills region of Nebraska. New records for Nebraska have been established for Artemia salina, Branchinecta campestris, B. lindahli, B. mackini and Cyzicus mexicanus. Seasonal populations of shrimp have been located in habitats containing permanent fish populations. Water mineralization was the dominant environmental condition related to the distribution of phyllopods with sodium and potassium compounds predominating in the strongly alkaline lakes. Several of the Artemia lakes were classified as hydroxide sites. Many of the alkaline ponds, where B. lindahli and B. campestris flourish, are …

Water Resources News, Volume 2, No. 1, January 1970

Water Current Newsletter

Implementation of Legislative Bill LB57
Council on Environmental Quality Established
Users Charges Suggested for Flood Control and Navigation
Applied Mathematical Programming in Water Resources
NSF Seeks Proposals for Research on Social Problems
Tentative Regulations Issued for Water Pollution Control Grants
Research on Phosphate-Free Detergents Sought
Land Grant Colleges Urge Expansion of Water Centers
GAO Review of Pollution Control Effort
Additional Urban Water Needed
Listing of FWPCA Awards in Research
Research Review
New Publications Received by the Institute

1970 Nebraska Swine Report

Nebraska Swine Reports

1970 Nebraska Swine Report

A New Genus Of Trematode (Digenea: Gorgoderidae) From The Ureter Of Tuna Fish (Thunnus Thynnus Maccoyii) In Australia, Harold W. Manter

Harold W. Manter Laboratory of Parasitology: Library Materials

A large, digenetic trematode is described from the ureter of the tuna Thunnus thynnus moccoyii from southern Australian waters. It represents a new genus and species, Cetiotrema crassum (subfamily Gorgoderinae) distinguished by the size and shape of the body, the caeca being distant from the sides of the body, the uterus being intercaecal, the vitellaria arising as three claviform lobes on each side and the seminal vesicle at least partly anterior to the genital pore.

The genus is close to Phyllodistomum Braun; P. carangi Manter, 1947, is considered to belong to Cetiotrema; P. lancea Mamaev, 1968 is very similar …

Translation Of Galuzo, I. G., And A. H. Krivkova. 1970. Novye Kanaly Tsirkulyatsii Toksoplazm V Prirode [= New Paths Of Circulation Of Toxoplasma In Nature]. Izvest. Akademie Nauk Kazakh. Ssr, Seriya Biol. 1970(5): 38-44, I. G. Galuzo, A. M. Krivkova, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 24, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (7 pages)

Translation of Galuzo, I. G., and A. H. Krivkova. 1970. Novye kanaly tsirkulyatsii toksoplazm v prirode [= New paths of circulation of Toxoplasma in nature]. Izvest. Akademie Nauk Kazakh. SSR, Seriya Biol. 1970(5): 38-44

Translated from Russian to English by Frederick K. Plous, Jr., and edited by Norman D. Levine

Translation Of Galuzo, I. G., N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krivkova, L. S. Bogdanyuk, And M. E. Bokova. 1970. Serologicheskaya Kharakteristika Shtammov Toksoplazm, Vydelennykh Ot Razlichnykh Vidov Zhivotnykh [= Serologic Characterization Of Strains Of Toxoplasma Isolated From Various Species Of Animals]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Disease], Alma-Ata, Kazakhstan, Ussr 3: 37-48, I. G. Galuzo, N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krikova, L. S. Bogdanyuk, M. E. Bokova, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 28, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (9 pages)

Translation of Galuzo, I. G., N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krivkova, L. S. Bogdanyuk, and M. E. Bokova. 1970. Serologicheskaya kharakteristika shtammov toksoplazm, vydelennykh ot razlichnykh vidov zhivotnykh [= Serologic characterization of strains of Toxoplasma isolated from various species of animals]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions on the Natural Nidality of Disease], Alma-Ata, Kazakhstan, USSR 3: 37-48

Translated from Russian to English by Frederick K. Plous, Jr., and edited by Norman D. …

Translation Of Kuzovkin, Ye. M. 1970. Toksoplazmy I Toksoplazmoz U Dikogo Kabana (Sus Scrofa Lin., 1758) [= Toxoplasma And Toxoplasmosis In The Wild Boar (Sus Scrofa Lin., 1758). Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases]. Alma-Ata, Kazakhstan, Ussr 3: 50-56, Ye. M. Kuzovkin, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Conclusions

1. Under experimental conditions wild boars are sensitive to toxoplasmosis to a significant degree. In all 6 of the infected animals the disease ended lethally. The characteristic clinical symptom was involvement of the eyes.

2. Spontaneous Toxoplasma antibodies were observed in 36 (34.3%) of 105 boars studied with CFRs.

3. Toxoplasma was found microscopically in smears of kidney, spleen, and brain from 3 boars; the bioprobe method revealed it in the lymph nodes of 10 animals; in these cases the strain isolated was avirulent.

Translation number 30, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (5 …

Translation Of Pak, S. M. 1970. Trikhomonady Dikikh Vodoplavayushahikh Ptits [= Trichomonads Of Wild Waterfowl]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases. Alma-Ata, Kazakhstan, Ussr 3: 62-70, S. M. Pak, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 31, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (23 pages)

Translation of Pak, S. M. 1970. Trikhomonady dikikh vodoplavayushahikh ptits [= Trichomonads of wild waterfowl]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions on the Natural Nidality of Diseases. Alma-Ata, Kazakhstan, USSR 3: 62-70

Translated from Russian to English by Frederick K. Plous, Jr., and edited by Norman D. Levine

Chiropteran Systematics, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Provides an overview of the field of chiropteran systematics in a way that will introduce the non-chiropterologist to the subject. By way of example, we have alluded to several aspects of taxonomic research at different levels in the hierarchy. Recourse to the publications cited at the appropriate places in the text will amplify our remarks and provide a solid background in the current work of the discipline.

Basically, taxonomic characters are where the taxonomist finds them; some, but not all, will prove useful also in elucidating relationships and evolutionary descent of taxa. Much remains to be done in these areas, …

System Analysis And Nematode Phylogeny, Armand R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The purpose here is to suggest a method which will permit understanding of the phylogenetic relationships of contemporary representatives of the phylum Nematoda without fossils. It is not my intent to again offer a phylogeny for the Nematoda. To say that no real benefit or knowledge of phylogeny or evolution is possible without fossils is succumbing to apathy. One cannot deny or ignore that all systems, morphological, biological and chemical manifested in modern forms developed by evolutionary sequence. It is true that with a complete fossil record the rates of evolution and developmental pressures could be accurately evaluated. However, in …

Translation Of Karapet'yan, A. B. 1970. Fauna I Dinamika Chislennosti Moskitov V Ochagakh Vistseral'nogo Leishmanioza V Gornykh Raionakh Kopet-Daga [= The Fauna And Abundance Dynamics Of Sandflies In Nidi Of Visceral Leishmaniasis In The Mountain Regions Of The Kopet-Dag]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases]. Alma-Ata, Kazakhstan, Ussr 3: 180-189, A. B. Karapet'yan, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Conclusions

1. In the mountainous regions of the Kopet-Dag, where cases of visceral leishmaniasis have been observed, 19 species of sandflies were found.

2. The physico-geographic conditions of the mountain valleys and their individual parts may substantially affect the species content of the sandflies and the abundance of a given species.

3. On the north slopes of the Kopet-Dag a flight of 4 generations was observed at settled places; P. papatasi, S. arpaklensis, and S. grecovi were most numerous in human habitations, while in the rodent colonies one sees.P. caucasicus, P. mongolensis, and P. chinensis …

Translation Of Pak, S. M. 1970. Shtamm Toxoplasma Gondii (Shp). Vydelennyi Ot Rechnykh Krachek [= A Strain Of Toxoplasma Gondii (Shp) Isolated From The Common Tern]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases, Alma-Ata, Kazakhstan, Ussr 3: 49, S. M. Pak, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 29, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (1 page)

Translation of Pak, S. M. 1970. Shtamm Toxoplasma gondii (SHP). Vydelennyi ot rechnykh krachek [= A strain of Toxoplasma gondii (SHP) isolated from the common tern]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions on the Natural Nidality of Diseases, Alma-Ata, Kazakhstan, USSR 3: 49

Translated from Russian to English by Frederick A. Plous, Jr., and edited by Norman D. Levine

Comprehensive Programs Based On Competencies Rather Than Content Areas --For Agricultural Employees*, James T. Horner, Dale G. Zikmund

Department of Agricultural Leadership, Education, and Communication: Faculty Publications

An attempt was made in Nebraska to inventory occupations and analyze the knowledges and skills needed by a sample of employed persons. More specifically, the purposes were:

1. To ascertain the various kinds of jobs held by workers in Nebraska.

2. To analyze the opinions of a sample of workers, in agricultural occupations, regarding the knowledges and skills needed to perform their jobs.

3. To specifically identify jobs requiring knowledges and skills in agriculture.

Blind River Dolphin: First Side-Swimming Cetacean, Earl S. Herald, Robert L. Brownell Jr., Fredric L. Frye, Elkan J. Morris, William Evans, Alan Scott

United States Department of Commerce: Staff Publications

The blind river dolphin (Platanista gangetica), first written about by Pliny the Elder in A.D. 72, was found (10 November 1968) to be the first known side-swimming cetacean. The rudimentary eye lacks the lens, but anatomical evidence suggests that the eye may serve as a light sensor. The underwater sound emissions of this species, although similar to those of the Amazon River dolphin (Inia geoffrensis), appear to be produced constantly.

Agricultural Experiment Station News December 1969

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
COLLEGE ENROLLMENT CONTINUES UPWARD
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - DECEMBER 1969

Transferable Drug Resistance Among Enterobacteriaceae Isolated From Cases Of Neonatal Diarrhea In Calves And Piglets, David P. Aden, Norman D. Reed, Norman R. Underdaul, Charles A. Mebus

School of Veterinary and Biomedical Sciences: Faculty Publications

Fecal specimens were collected on 22 different Nebraska ranches and at the Department of Veterinary Science from young calves and pigs with neonatal diarrhea. Enterobacteriaceae isolated from these fecal specimens were screened for resistance to tetracycline, streptomycin, sulfamethizole, kanamycin, chloramphenicol, colistin, nitrofurantoin, and nalidixic acid. Of the 92 strains studied, 57 were resistant to one or more of these antimicrobial agents. Resistant strains were obtained from all herds involved in the study. The two most common resistance patterns were tetracycline streptomycin sulfamethizole (22 of 57) and tetracycline (13 of 57). None of the strains were resistant to chloramphenicol, colistin, nitrofurantoin, …

Parasitic Organisms In The Blood Of Arvicoline Rodents In Alaska, Francis H. Fay, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A Grahamella-like organism (Schizomycetes: Bartonellaceae) was found in erythrocytes of laboratory-reared northern voles, Microtus oeconomus Pallas, which had been inoculated intraperitoneally with a saline suspension of ground fleas, Megabothris abantis (Roths.), from wild northern voles captured at Lower Ugashik Lake, Alaska Peninsula. A live-trapped northern vole from the same locality harbored trypanosomes referable to T. microti (Mastigasida: Trypanosomatidae). Two morphologically similar but biologically different strains of piroplasms (Piroplasmasida: Theileriidae) of uncertain generic status were isolated from northern voles of Ugashik Lake origin and from northern red-backed voles, Clethrionomys rutilus Pallas, from the vicinity of Anchorage, Alaska. In the natural …

Water Resources News, Volume 1, No. 7, November 1969

Water Current Newsletter

FY 1970 Appropriations
Interdisciplinary Water Resources Seminar
McCormick Named Deputy Assistant Secretary
Matching Grant Proposals Submitted for FY 1971 Consideration
Natural Resources District Law
Senate Appropriations Committee on Water Resources Research
Evaluation Procedures for Water Resources Projects
Research Review
New Publications Received by the Institute

Notes On Pocket Gophers From Jalisco, Mexico, With Descriptions Of Two New Subspecies, Hugh H. Genoways, J. Knox Jones Jr.

University of Nebraska State Museum: Mammalogy Papers

Systematic, distributional, and ecological data are provided for seven taxa, two described as new, of three species of the pocket gopher genus Pappogeomys in the Mexican state of Jalisco. The first Jaliscan record of Orthogeomys grandis also is reported and several instances of sympatric occurrence of pocket gophers are documented.

Sire Effects In Different Housing Systems, G. R. Wiggans, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Over 1,000 Holstein herds in New York's Dairy Herd Improvement Cooperative were classified as to housing system. The two housing systems considered were stanchions and free stalls. First-lactation records (21,285) produced in these herds by daughters sired through artificial insemination were analyzed to determine if housing system would affect sire ranking. The study covered records started in 1964 through 1967.

The sire component of variance was estimated for each housing system for deviations of these records from their adjusted herdmate averages. The covariance between the means of daughters in each housing system was computed. The genetic correlation between sire effects …

Agricultural Experiment Station News October 1969

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
READING IMPROVEMENT PROGRAM
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – October 1969
STATION AND RESEARCH BULLETINS PRINTED

Whole Issue Nebraska Bird Review (October 1969) 37(4)

Nebraska Bird Review

TABLE OF CONTENTS

1969 (Forty-fourth) Spring Migration and Occurrence Report ....................50

Pileated Woodpecker and Other Birds at Indian Cave State Park.................... 57

Correction to 1968 Nebraska Nesting Survey ....................61

Notes ....................61

Index: of Volume XXXVII ....................65

Effects Of Metepa On Gametogenesis And Embryogenesis In The Large Milkweed Bug Oncopeltus Fasciatus (Dallas), Donald E. Lawson, Harold J. Ball

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Considerable research is currently being directed toward discovering means of controlling insects other than by applying insecticides. There are several promising concepts of control which minimize the use of insecticides and one of these is the use of sterilizing techniques. Some emphasis is currently being placed on the development of chemosterilant techniques. Many of the studies have been concerned with the screening of potentially active chemicals, whereas other research has dealt with the efficacy of field application. The more basic work has been accomplished through the participation of several disciplines. The purpose of this study was to characterize the effects …

Agricultural Experiment Station News September 1969

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTORS OFFICE
UNIVERSITY OF NEBRASKA SCHOOL OF TECHNICAL AGRICULTURE
PERSONNEL ACTIONS
NEW GRANTS, CONTRACTS AND COOPERATIVE AGREEMENTS
GENERAL NOTES

Variation Within Herds Under Different Housing Systems, G. R. Wiggans, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

New York Holstein herds (1,152) including 75,875 cows were classified by housing system (stanchions, free stalls, and other combinations). Records initiated in these herds from 1964 to 1968 were used to determine the degree to which housing type might affect variance of milk production records in herds with 45 or more cows.

The within-herd variances by lactation for each housing system in each year-season were examined by Bartlett's test for nonhomogeneity among housing systems. Records in the stanchion systems were less variable than those in free-stall systems. This difference was not large enough to require adjustment for type of housing …