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The Covalent Interaction Of Hepatic Metabolites Of The Insecticide Chlordane With Cellular Macromolecules In The Rat And Mouse In Vitro, Alan A. Brimfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This investigation addressed several aspects of the covalent interaction of metabolites of the insecticide chlordane with cellular macromolecules in vitro. Microsomal preparations from the liver of mice and rats were used and covalent binding to microsomal protein and RNA or to added calf thymus DNA was studied. Pure ¹⁴C-labelled cis- and trans-chlordane isomers as well as an isomeric mixture (¹⁴C-cis-chlordane plus ¹⁴C-trans-chlordane 3:1, w:w) were used as substrates for the in vitro system. Biochemical parameters investigated included inhibition of microsomal mixed-function oxidase and epoxide hydratase plus the induction of these enzymes by pretreatment with chlordane …

Linear Models For Estimating The Nutritive Value Of Sheep Diets, Michael L. Christiansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Digestibility data were determined in 2 replications of a 2 x 3 x 2 x 2 factorial arranged experiment to: (1) determine the effects of forage type (grass vs alfalfa), forage maturity (late vegetative vs midbloom vs fullbloom), diet ingredients (forage only vs 50:50 forage plus corn), and diet texture (coarsely chopped vs pelleted) on the digestibility of diet chemical constituents by sheep; (2) develop equations to estimate digestible energy of sheep diets from nutrient content of the diet; and (3) compare popular chemical methods used to partition feed dry matter into fibrous and soluble components. Diets were fed to …

Causative Factors And Some Consequences Of Dystocia In Two-Year-Old Heifers, Delyn Jensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Causative factors and some consequences of dystocia were examined in 3923 parturitions among Hereford and Angus x Hereford crossbred two-year-old heifers. Fifty percent of the parturitions required some assistance. Minor assistance was required in 34.5% of the parturitions and major assistance involving use of a calf puller, in 15.1%. Caesarean section and foetotomy were rendered in 0.3% and .05% of the cases, respectively. Abnormal presentation at birth, which included leg back, head back, backwards, hiplock and breech, was observed in only 2.9% of the births and therefore is a minor contributor to dystocia. The major causes of dystocia were not …

The Effect Of Wilt-Pruf, Antitranspirant On Reducing Water Loss Of Apple Trees, Hassan A. Nammah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The influence of different concentrations of a film-forming antitranspirant (Wilt-Pruf) on the transpiration rate of young apple trees (M106) was studied. One-year-old Mailing 106 trees were potted in 10.2 em (4 inch) metal pots. The plants were placed in a controlled environmental chamber during the study period. Sufficient reductions in water loss resulted with all concentrations of Wilt-Pruf with a 63 percent reduction at the highest concentration. Phytotoxicity was not observed though the higher concentrations imparted a sticky film to plants and they appeared to be lighter green at the end of the test. The effect of Wilt-Pruf on four-year …

Sodium And Potassium Nutrition Studies Of Halogeton Glomeratus (M. Bieb) C.A. Mey, Ali A. Alhelal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Halogeton glomeratus (M. Bieb) C.A. Mey when grown in nutrient solution, caused the solution pH to decrease very rapidly as plants increased in size, especially during the fifth week of growth. This might be attributed to hydrogen ion exchange for cations. Also, the cation uptake, especially K and Na, may exceed that of the major anions. The control of pH is effective in increasing shoot weights markedly.

In general there was no difference between plants grown at the same NaCl concentration at low and high relative humidity. An increase in plant size, shoot weights, leaf length and diameter was detected …

An Electron Microscopic Examination Of Spermiogenesis In The Recessive Sex-Linked Male-Sterile Mutant, Ms(1)10s Of Drosophila Melanogaster, Lizabeth A. Perkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Electron microscopy of the testes of mutant ms(1)10S of Drosophila melanogaster is characterized by three major defects in the tail region of the developing spermatid. One is the apparent lack of paracrystalline body formation. The second is the loss of the primary derivative as development proceeds, and the third is the breakup and incorporation of the plasma membrane and periaxonemal sheath into membranous whorls. The mutant shows different patterns of axonemal breakup depending on the stage of differentiation in which degeneration begins. Degeneration continues until only cellular debris, scattered axonemal profiles and membranous whorls are all that are seen …

Unequal Sex Ratios In An Unhunted Mule Deer Population In New Mexico, Pamela Cotton

Biology ETDs

The adult sex ratio and the sex ratio at birth was determined for the unhunted mule deer (Odocoileus hemionus) population occupying the riverbed area of the Bosque del Apache National Wildlife Refuge, Socorro County, New Mexico. The adult sex ratio was computed as the number of yearling and adult males per number of yearling and adult females observed within the effective area of seven linear one-mile transects established on the study area in accordance with the Stake Estimator Technique (Evans 1975). The ratio of 586 males:501 females (117:100) was significantly different from a 50:50 ratio. No evidence was found for …

Abstracts, 91st Session [Iowa Academy Of Science], April 20-21, 1979, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Agricultural Experiment Station News April 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTION
GRANTS & CONTRACTS
GENERAL NOTES
Journal Abstracts - Submitted for Publication
BULLETINS PRINTED
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - March 1979

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comments [p] 2
Hail-Out! [p] 3
McCrory Gardens [p] 7
Ear Tags for Horn Flies [p] 9
Leafcutting Bees [p] 11
Prescribed Burning [p] 14
Bagged Pro-Sil [p] 19
Tissue Culture [p] 21
A Movable Collector [p] 24

Spermatogenesis In Limnodrilus Hoffmeisteri (Clap); A Morphological And Environmental Study Of The Development Of Two Sperm Types, Edward Michael Block

Dissertations

No abstract provided.

Agricultural Trade And The South Dakota Transportation Situation : Highlights Of Papers Presented At Seventeenth Agri-Business Day, South Dakota Agricultural Experiment Station, Department Of Economics, South Dakota State University

Agricultural Experiment Station Agricultural Economics Pamphlets (1941-1991)

Contents: Effects on South Dakota of Agricultural Trade Negotiations The Potential for Commercial Grain Exports to Africa Implications of U.S. Food Assistance for Agricultural Development in South Asia Presentation of Honored Agri-Business Person of 1979 Business Person of 1979 Projecting Our Grain Transportation Demands South Dakota Highways: Conditions and Alternatives The Future of the South Dakota Transportation System

1979 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Osteoarthritis In Prehistoric Turkey And Medieval Byzantium, J. Lawrence Angel

Henry Ford Hospital Medical Journal

No abstract provided.

Degenerative Joint Disease Of The Long Bones In Dickson Mounds, Debra L. Martin, George J. Armelagos, Jack R. King

Henry Ford Hospital Medical Journal

No abstract provided.

Agricultural Experiment Station News February 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR’S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - January 1979

G79-476 Composition Of Feeds In Relation To Cattle Nutrition, Paul Q. Guyer, Foster G. Owen

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide examines the major nutritional components of cattle feed. Plants serve as the major source of feed for livestock. Nutrients required for maintenance and production are provided by various plants and plant derived feeds along with small amounts from non-plant sources. The major constituents of plants are water, carbohydrates, protein, fat, minerals and vitamins. Both plants and animals contain these nutrients, but the relative proportions vary more in plants.

Characterization And Identification Of An Isolate Of Halobacterium From Soda Springs Mojave Desert, Abayomi Odubela

Theses Digitization Project

No abstract provided.

Alternatives To Laboratory Animals: Definition And Discussion, Andrew N. Rowan

The Institute for the Study of Animal Problems [ISAP]

The origins of the concept of "alternatives" to the use of animals in research may be traced back to the 1800's and the furore about using live animals in surgical and other experiments. Some of the animal protection societies in England were prepared to accept animal experimentation provided it was performed under anesthesia. Even Dr. Marshall Hall, who championed the spread of experimental medicine in 19th century England, considered it necessary to control and prevent unwarranted, inept and cruel experimentation (French, 1975). The concept of alternatives has developed in the 20th century to encompass not only the reduction (prevention) of …

Comparison Of Tolerance To High Moisture Conditions Of The Soil Among Crop Plants: Studies On The Comparative Plant Nutrition [English Translation], Toshiaki Tadano, Kiyokazu Kirimoto, Isao Aoyama, Arika Tanaka

Publications

Tolerance to high moisture conditions in the soil was compared for eighteen crop species, and factors causing differences among species were studied: 1) When the moisture content of a soil was kept high, the soil air contained 10.5 - 17.5% of O2 and 5.0 - 9.8% of CO2, and the soil solution was not very high in Fe, Mn or NO2-N. 2) Cruciferae, Solanaceae, sugar beet, field bean, pea, cucumber and Chrysanthemum coronarium were very susceptible to this condition, but maize, soybean, and onion were tolerant. Rice grew better under this condition than under ordinary upland conditions. 3) Tolerance to …

G79-465 Urinary Calculi (Waterbelly) In Cattle And Sheep, Ivan G. Rush, Dale Grotelueschen

University of Nebraska-Lincoln Extension: Historical Materials

This publication discusses the symptoms, management and treatment of various types of urinary calculi diseases in cattle and sheep.

The term "urinary calculi" refers to deposits in the urinary tract. These deposits may block the flow of urine, particularly in male cattle and sheep. Prolonged blockage generally results in rupture of the urinary bladder or urethra, releasing urine into the surrounding tissues. This produces the condition commonly referred to as "waterbelly."

Two types of urinary calculi, both mineral in nature, predominate in cattle and sheep: (1) the phosphatic type formed principally under feedlot conditions and (2) the siliceous type occurring …

G79-467 Livestock Water Quality, Paul Q. Guyer

University of Nebraska-Lincoln Extension: Historical Materials

The purpose of this report is to discuss what is involved in livestock water quality and how one goes about getting an analysis that will help in determining this quality, and to assist in the interpretation of such an analysis.

A successful livestock enterprise requires a good water supply, both in terms of quantity and quality. While shortage is obvious to the stockowner, he sometimes needs the help of a laboratory in evaluating the quality of a supply. The purpose of this report is to discuss what is involved in livestock water quality and how one goes about getting an …

Nitrogen Cycling In Great Basin Desert Soils, J. Skujins, B. Klubek

Memorandum

No abstract provided.

Demography Of Termite Colonies As Related To Various Environmental Factors: Nutritional Biochemistry And Physiology Of Termites, W. L. Nutting, J. P. Lafage

Memorandum

No abstract provided.

Demography Of Termite Colonies As Related To Various Environmental Factors: Nutritional Biochemistry And Physiology Of Termites, W. L. Nutting, J. P. Lafage

Memorandum

No abstract provided.

G79-430 Oat Production In Nebraska (Revised March 1992), Russell Moomaw, Charles A. Shapiro

University of Nebraska-Lincoln Extension: Historical Materials

Information is provided for various oat production practices including seed selection, fertilizing, planting, weed control and harvest. Oats were among the first crops grown by pioneers who settled eastern Nebraska. As recently as 1950, Nebraska produced 2.7 million acres of oats. Acreage has declined steadily, however, and in 1990 there were just 300,000 acres. Oats are grown throughout the state, with the majority being in eastern Nebraska where the cool, moist climate provides for the best growth. The feed value of oats also favors its production in northeast Nebraska where swine, dairy cattle, and beef cattle production are heavy. An …

G79-434 Feeding Guides For The Ewes, Ted Doane

University of Nebraska-Lincoln Extension: Historical Materials

In utilizing the information in this publication, the sheepman and those advising him must keep in mind the ultimate objectives of the production program in question.

The major problem in nutrition is the definition of the desired animal function. Maintenance of the ewe, for example, is generally thought of in terms of the dry ewe. Yet maintenance of productive functions is a constant cost in ewe nutrition, whether she is pregnant, lactating, dry, or in the process of being bred for another year.

In utilizing the information in this publication, the sheepman and those advising him must keep in mind …

G74-449 Making Yogurt At Home, Robert W. Hutkins, Susan Sumner

University of Nebraska-Lincoln Extension: Historical Materials

Information on and instructions for making yogurt are included here.

Yogurt is a tangy, nutritionally excellent dairy product that can be made at home. The milk used contains a higher concentration of solids than normal milk. By increasing the solids content of the milk, a firm, rather than soft, end product results. Addition of nonfat dry milk (NFDM) is the easiest at-home method for doing this.

Yogurt is made by inoculating certain bacteria (starter culture), usually Streptococcus thermophilus and Lactobacillus bulgaricus, into milk. After inoculation, the milk is incubated at approximately 110°F ± 5°F until firm; the milk is coagulated …

Wheat Straw And Sodium Hydroxide Treatment In Beef Cow Rations, C. W. Acock, J. K. Ward, Ivan G. Rush, T. J. Klopfenstein

Panhandle Research and Extension Center

Two cow drylot wintering trials and a lamb digestion trial were conducted to evaluate wheat straw in maintenance diets for gestating beef cows. Wheat straw or sodium hydroxide (NaOH) treated wheat straw, when fed ad libiturn with one-third alfalfa hay, supported gestating cow weight gains equivalent to a limitfed alfalfa-bromegrass diet. Cows fed NaOH treated wheat straw supplemented with soybean meal and minerals gained less weight (P<.01) than cows on the other treatments. Calf birth weights, calving difficulty and subsequent reproductive performance of the cows were similar for all treatments. Apparent digestibility of wheat straw was increased (P<.01) by 4% NaOH treatment in a lamb digestion trial but was not altered by balancing the sodium intake with other specific minerals. The increase in digestibility of wheat straw due to NaOH treatment was greater in vitro than in vivo.

G79-433 Rearing Lambs On Milk Replacers, Ted Doane

University of Nebraska-Lincoln Extension: Historical Materials

Rearing orphan lambs on milk replacers can help increase profit.

Orphan lambs can be an extra profit to the farm flock. As much as $40/lamb can be paid to labor if time is available. A warm room (in the winter) and some basic equipment are all that are necessary.

A large portion of the nation's lamb crop dies from starvation during the first week after birth. Orphan lambs less than 4 weeks of age usually require the use of milk replacer supplementation. Switching lambs to milk replacers shortly after birth has not reached its full potential in sheep husbandry.