Digital Commons Network^™

Trace Element Nutrition. Tissue Testing Programme 1987, R. F. Brennan

Experimental Summaries - Plant Research

Project title: Evaluation of existing diagnostic procedures for the recommendation of trace element fertilizers.

Aim: To compare the accuracy and reliability of a range of tissue and soil tests being variously promoted for use to farmers for the diagnosis and prognosis of zinc and copper deficiencies in wheat crops on Western Australian farms.

Trial 87N23

Nitrogen rates on the main copper plots of the long term copper residual trial at Newdegate Research Station.

Location: Newdegate Research Station

To determine the effects of rates of nitrogen on the copper status of plants.

Trial 87LG33

Effects of rates of nitrogen on the …

Nitrogenous Fertilizers For Cereals Results From 1987 Trials, M G. Mason

Experimental Summaries - Plant Research

Effect of stubble treatment on nitrogen fertilizer requirement. 78C3

Effect of Stubble Treatment on Nitrogen Fertilizer Requirement 78WH3

Effect of Stubble Treatment on Nitrogen Fertilizer Requirement 78M2

Nitrogen Rate on Continuous Wheat with Varying Levels of Retained Stubble *84WH46

Rates of Nitrogen on Continuous Wheat on Heavier Land 87C1

Rates of Nitrogen on Wheat on Heavy Land *87M04

Nitrification of Sources of Nitrogen on Slightly Acid to Neutral Soil 87BA3

Nitrification of Sources of Nitrogen on Medium Soil 87A1

Nitrification of Sources of Nitrogen on Very Acid Soils 87M3

Nitrification of Sources of Nitrogen on Moderately Acid Soil 87WH1

Rate …

Effect Of Level Of Protein And Supplemental Choline On Reproductive Performance Of Gilts Fed Sorghum Diets, C. V. Maxwell, R. K. Johnson, W. G. Luce

Department of Animal Science: Faculty Publications

A total of 214 gilts was used (two trials) to determine the effect of protein level and choline supplementation during gestation on weight gain, conception rate and subsequent reproductive performance. The gilts were fed either a 12 or 16% crude protein sorghum-soybean meal diet containing either a high supplemental choline level or no supplemental choline in a 2 • 2 factorial arrangement of treatments Conception rate was not influenced by either protein or choline level. Choline supplementation increased pig weight at 42 d of age (P<.14) and litter weight at 21 (P<.12) and 42 d (P<.1). Gilts fed the 16% protein diet produced larger pigs at 42 d (P<.13) and heavier litters at birth, (P<.l) 21 d (P<.14) and 42 d (P<.05) than gilts fed the 12% protein diet. A larger choline effect on litter size and pig and litter weight was observed for gilts fed the 12% protein diet than for those fed the 16% gestation diet, although the protein-choline interaction was not significant for any traits measured. The incidence of spraddle leg condition was low and was not affected by level of dietary protein or supplemental choline.

Effect Of Level Of Protein And Supplemental Choline On Reproductive Performance Of Gilts Fed Sorghum Diets, C. V. Maxwell, R. K. Johnson, W. G. Luce

Department of Animal Science: Faculty Publications

A total of 214 gilts was used (two trials) to determine the effect of protein level and choline supplementation during gestation on weight gain, conception rate and subsequent reproductive performance. The gilts were fed either a 12 or 16% crude protein sorghum-soybean meal diet containing either a high supplemental choline level or no supplemental choline in a 2 x 2 factorial arrangement of treatments Conception rate was not influenced by either protein or choline level. Choline supplementation increased pig weight at 42 d of age (P<.14) and litter weight at 21 (P<.12) and 42 d (P<.1). Gilts fed the 16% protein diet produced larger pigs at 42 d (P<.13) and heavier litters at birth, (P<.l) 21 d (P<.14) and 42 d (P<.05) than gilts fed the 12% protein diet. A larger choline effect on litter size and pig and litter weight was observed for gilts fed the 12% protein diet than for those fed the 16% gestation diet, although the protein-choline interaction was not significant for any traits measured. The incidence of spraddle leg condition was low and was not affected by level of dietary protein or supplemental choline.

Efficiency Of Different Storage Methods For Preserving Lake Trout (Salvelinus Namacush) Eye Tissue, Basil L. Joiner, Joseph R. Sylvester, Harold L. Kincard

Journal of the Arkansas Academy of Science

No abstract provided.

The Strain Improvement Of Aspergillus Ficuum Nrrl 3135, Eric A. Utt

Retrospective Theses and Dissertations

A strain improvement program was initiated to increase the yield of extracellular phytase (EC 3.1.3.8) in Aspergillus ficuum NRRL 3135. A minimal plating medium containing 2.99 g liter^-1 a-ketoglutaric acid was developed to decrease and stabilized conidiogenesis time and facilitate the isolation of single colonies. Exposure of A. ficuum conidia to 0.5 mg ml^-1 N-methyl-N’-nitro-N-nitrosoguanidine (NTG) for 15 min at pH 6.5 caused a one log kill and an increase in the mutation rate of 800-fold. Treatment of A. ficuum conidia with 46 ergs mm^-2 sec ^-1 UV radiation for 30 sec resulted in a one …

The Effects Of Frozen Storage And Repeated Freeze-Thawing On Salmonella In Varied Concentrations Of Waste Activated Sludge, Joseph Toman Jr.

Masters Theses

Commonly, waste activated sludge is applied to farmland as a fertilizer supplement and soil conditioner. The use of waste activated sludge is not only an efficient way of sludge disposal, but also an economical one. Much concern has been raised about the safety of such a practice. Harmful pathogens, like Salmonella, are commonly present in waste material. Treatment at wastewater plants is successful in eliminating these organisms from final effluent, but the solids generated are full of indigenous microorganisms, including Salmonella.

Work of this paper attempts to determine the safety of the sludge product after simulated winter conditions …

Chickpeas As A Protein And Energy Supplement For High Producing Dairy Cows, Darryl Lynn Hadsell

Electronic Theses and Dissertations

Thirty lactating Holstein cows were randomly assigned to one of three diets to evaluate chickpeas as a dietary supplement from wk 4 to 16 postpartum. Diets contained chickpeas at 0, 50, and 100 % of the concentrate dry matter in place of corn and soybean meal. Total mixed diets, fed individually, contained concentrate corn silage and alfalfa hay at 52, 32, and 16 % of the dry matter. Milk yield (34.5, 35.1, 35.7 kg/d) was higher for cows fed 100 % chickpeas than 0 % chickpeas. Fat (3.06, 3.09, 3.28 %) was highest for cows fed 100 % chickpeas. Milk …

Characteristics Of Successful Competitors: An Evaluation Of Potential Growth Rate In Two Cold Desert Tussock Grasses, Eissenstat D. M., Caldwell M. M.

Aspen Bibliography

Within the first few weeks after seedling emergence, Agropyron desertorum, a more competitive tussock grass, had a much higher mean relative growth rate (RGR) than Agropyron spicatum, a very similar, but less competitive species. However, beyond the early seedling stage, the two grasses had a remarkably similar whole-plant RGR in hydroponic culture and aboveground RGR in glasshouse soil, if root temperatures were above approximately 12° C. At soil temperatures between 5 and 12° C, A. desertorum exhibited a 66% greater aboveground RGR than A. spicatum (P < 0.05). Both species responded similarly to warming soil temperatures. In the field, however, tiller growth rates were generally similar. Neither species showed marked tiller elongation until a couple of weeks after snowmelt, by which time soil temperatures, at least to a depth of 10 cm, were above 12° C for a significant portion of the day. Above-ground biomass accumulation over a three-year period indicated that both grasses had similar potential growth rates whereas Artemisia tridentata ssp. vaseyana, a common neighbor planted in the same plots, had a much greater potential growth rate. The greater competitive ability of adult A. desertorum, as compared to A. spicatum, cannot be attributed to appreciable differences in potential growth rates.

Reproductive Competence In The Golden Hamster Following Prenatal Alcohol Exposure, Jennifer Jayne Swiatek

Master's Theses

No abstract provided.

Comparison Of Gelled And Meat Diets For Rearing Screwworm, Cochliomyia Hominivorax (Diptera: Calliphoridae), Larvae, David B. Taylor, Robert L. Mangan

Department of Entomology: Faculty Publications

A liquid diet solidified with an acrylamide-acrylate polymer gelling agent (Water-Lock) was compared with a standard meat diet for rearing screwworm, Cochliomyia hominivorax (Coquerel), larvae. Size and yield of larvae reared on gel diet were equal to, or greater than, those of larvae reared on meat diet. Duration of larval development was increased by ca. 13 h on gel diet; however, variability of pupal weight and larval survival over generations were reduced when gel diet was used. Larval size was also more uniform over the 3-d period when larvae leave the rearing medium to pupate (crawl-off). Gelled diet was more …

Comprehensive Review: Self-Study - Recommendations 1987, Southeast Research & Extension Center

Southeast Research and Extension Center: Reports and Administration

Foreword
    Introduction ....................................................... 1
    What Makes a Comprehensive Review Most Effective ................... 4
    Members of the Review Team ......................................... 5
    Review Schedule .................................................... 6

Southeast Nebraska Information ......................................... 10

Southeast Research and Extension Center
    History of the Organization ....................................... 11
    Organizational Structure of the University of Nebraska-Lincoln .... 12
    Organizational Structure of the Institute of Agriculture and Natural Resources .. 13
    Internal Relationships of the Institute of Agriculture and Natural Resources ..... 14
    Staff of Southeast Research and Extension Center and the Southeast
           Extension District ....... 15

Southeast Research and Extension Center Programs ....................... 17
    Cooperative Extension Service ..................................... 18 …

Growth And Proteolytic Activity Of Selected Psychrotrophic Bacteria In Whole Milk And Whole Milk Retentate, Ravinder Reddy

Electronic Theses and Dissertations

In the last twenty years a number of membrane separation processes have evolved from laboratory scale, through pilot plant investigation, to full scale production units. One such process, ultrafiltration, has been found particularly useful in the dairy industry. Ultrafiltration uses porous polymeric membranes to separate molecules, principally on the basis of their molecular weight. In milk, fat, protein and associated substances are retained on the membrane. Permeate, which passes through the membrane contains mainly water, lactose and other low molecular weight substances. There is interest in ultrafiltration of milk because of it is potential importance in saving costs to both …

Biotechnology: The Public Concerns, Robert L. Sinsheimer

Journal of the Minnesota Academy of Science

No abstract provided.

Biotechnology: Altering Agriculture And The Nature Of Food, Susan K. Harlander

Journal of the Minnesota Academy of Science

Fundamental discoveries in molecular biology within the past 30 years have initiated a biological revolution, which will have a profound effect on industry, government, and academic institutions. To date, the major industrial focus of this technology has been its use in the development of human healthcare-related products, such as human growth hormone, insulin, interferons, and interleukins, which can now be mass produced by genetically engineered microorganisms. However, the potential for genetically engineering plant, animal, and microbial cells with desirable structural, functional or chemical properties, offers an exciting new dimension for biotechnological input into the production and processing of foods. This …

Production From Heifers And First Calvers, G J. Sawyer

Journal of the Department of Agriculture, Western Australia, Series 4

Heifers and first calvers present the major problems of the beef breeding herd. Reproduction rates, calf growth and survival of first calvers are generally much poorer than those of adult breeders.

Early successful reproductive performance is important in beef herds because of the high overhead cost of keeping breeding beef heifers or cows, Where possible, beef producers should aim to join heifers at 14 to 15 months of age. To achieve this goal, producers should set production targets for those animals. These targets will differ from farm to farm depending on when calves are turned off and the seasonal feed …

Status Of The Instream Flow Issue In Arkansas, 1987, Stephen P. Filipek, William E. Keith, John Giese

Journal of the Arkansas Academy of Science

Expansion of Arkansas' population with concurrent increases in the state's domestic, industrial, and agricultural water uses and possible out-of-state diversion are placing substantial demands on the state's water resources. In an attempt to address this growing concern, Act 1051 (1985) of the Arkansas legislature was passed requiring the determination of present and future state water needs. A specific area of this mandate was the quantification of instream flow requirements. Basic instream flow needs are maintenance of the aquatic ecosystem and dependent riparian environment. Flow reservation may compliment other instream uses such as recreation, navigation, water quality, and groundwater recharge. However, …

Rediscovery Of The Suckermouth Minnow, Phenacobius Mirabilis (Girard), In Arkansas, William E. Keith, Thomas M. Buchanan, Henry W. Robison

Journal of the Arkansas Academy of Science

No abstract provided.

Effects Of Mineral Nutrition On Components Of Reproduction In Clarkia Ungucilata, Frank C. Vasek, Vincent Weng, Robert J. Beaver, Charles K. Huszar

Aliso: A Journal of Systematic and Floristic Botany

An experiment was conducted to determine the effects of nutritional level and flower location on factors related to flower, pollen, and ovule production, and to determine what developmental patterns would be modified to mediate any observed changes. Plants subjected to high nutrient levels developed larger leaves, more branches, more flowers on both the main stem and the branches, and opened their first flowers 6 days sooner than plants at lower levels of nutrients. Total flower number increased from 72.2 to 626.8 per plant, with most of the increase produced on the primary branches. The number of pollen grains in the …

The Relationship Of Upwelling To Mussel Production In The Rias On The Western Coast Of Spain, Jack O. Blanton, Kenneth R. Tenore, F. Castillejo, Larry P. Atkinson, Franklin B. Schwing, Amy Lavin

CCPO Publications

We have calculated an upwelling index for each month over a 17-year period (1969-1985) for a point off the western coast of Spain. We interpret April through September values of the index to indicate the flux of nitrate-rich water in the Spanish Rias. The index representing the 6-month upwelling series has been correlated with an index representing the conditions of mussels grown during that season on rafts in Ria de Arosa. Two seasons represent extreme upwelling conditions over the 17-year sampling period: 1977 when the upwelling index was the highest, and 1983 when it was the lowest. A comparison of …

The Effect Of A Balanced Amino Acid Infusion On Hepatic Regeneration In Rats, Robert Arthur Anstadt

University of the Pacific Theses and Dissertations

The efficacy of a balanced amino acid infusion on recovery from temporary hepatic insufficiency and its effect on plasma ammonia levels in partially hepatectomized rats were studied.

Polyethylene implant buttons were developed to secure animals to the infusion apparatus. Rats under went jugular vein cannulation, and 70% partial hepatectomy. Test solutions were continuously infused (30 ml/d). Plasma samples were taken through the jugular vein cannula and analyzed for bilirubin concentration, ammonia concentration, LDH activity, and GPT activity.

LDH and bilirubin results were inconclusive. Results from GPT activity assays suggest that both Freamine III and the balanced formula provided injured hepatocytes …

Lipogenesis In Adipose Tissue From Ovariectomized And Intact Heifers Immunized Against Estradiol And(Or) Implanted With Trenbolone Acetate, L. C. St. John, P. A. Ekeren, J. D. Crouse, B. D. Schanbacher, S. B. Smith

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

Forty-two heifers were allotted randomly to six treatment groups: 1) intact controls, 2) intact heifers implanted with trenbolone acetate, 3) ovariectomized heifers, 4) ovariectomized heifers implanted with trenbolone acetate, 5) intact heifers immunized against estradiol and 6) intact heifers immunized against estradiol and implanted with trenbolone acetate. Blood titers of estradiol-17β were increased over lO0-fold in heifers immunized against estradiol in Freund's complete adjuvant or saline:squalene/arlacel containing Mycobacterium. Lipogenic enzyme activities and acetate incorporation into fatty acids were increased in subcutaneous adipose tissue obtained at slaughter from heifers receiving immunization or the combination of immunization and trenbolone acetate. The increased …

Assessment Of Influence That The Church Of Jesus Christ Of Latter-Day Saints Has On Exercise Habit Of Members Living In Utah County, Gary L. Preston

Theses and Dissertations

This study identified and analyzed the influence the Church of Jesus Christ of Latter-day Saints had on the decision of 309 respondents to exercise. The data obtained from the questionaires were analyzed using chi-square to compare males and females. Within the limitations of this study, the following conclusions were justified: women were more influenced by the LDS Church to exercise than men; LDS males and females exercised more than average American adults; walking, jogging, and aerobic dance were the most popular choices of LDS exercisers; and, there is a need to improve the awareness of LDS members concerning the Physical …

Phosphorus Levels And Disease On Lupins, J W. Bowden

Experimental Summaries - Plant Research

Trial 87LG39 (81LG29) 87ME62

Location: Pingaring.

It has been suggested that high levels of phosphorus application to lupins can reduce the impact of leaf and root diseases. Two old rotation trials provided a range of disease burdens, across which phosphate rates on lupins were applied. Disease scores, vegetative yields, phosphorus concentration and seed yields were measured.

(Details in Mark Sweetingham's report)

Residual Value Of Phosphate Fertilizers., M D A Bolland, M Baker, C. H. Phillips, D. Proudmore

Experimental Summaries - Plant Research

Trial 84M63

Residual value of phosphate fertilizers.

Location: South Carrabin Block of Merredin Research Station.

4th successive crop on new land. Trial has shown that the effectiveness of the different types of rock phosphate were about the fifth to one tenth as effective as the fresh (triple) superphosphate applied in 1984. The effectiveness of the superphosphate, decreased by 60 between year 1 and 2, and by a further 10-15% by 1987. This experiment will continue as pasture for 1988 and 1989, and will be re-cropped in 1990. The experiment is also assessing soil testing for P. but soil test data …

Eastern Wheatbelt Nutrition Studies, W Porter, S Carr

Experimental Summaries - Plant Research

To determine the effectiveness of foliar applied phosphate relative to soil applied phosphorus.
To compare the effectiveness of the number of times of application of foliar phosphorus.
87M81, 87ME106

Peanuts In The Ord, D L. Mcneil, D. W. Bennett

Journal of the Department of Agriculture, Western Australia, Series 4

The peanut industry on the Ord River Irrigation Area is expected to gross about $1.9 million at the end of the decade, a tidy return for an industry that only started truly commercial plantings some six yesrs ago.

At present the Ord River Irrigation Area produces about 2.5 per cent of Australia's total production, but it hopes to increase this to 7 per cent. High yields and plantings on non-staining soils make peanuts one of the most succesful crops grown on the Ord.

Barley Agronomy., K. J. Young

Experimental Summaries - Plant Research

Trial 87E6, 87MT45, 87SG11, 87ES8

Locations: Esperance Downs Research Station, Mount Barker Research Station, Salmon Gums Research Station, Melijinup Field Station,

Barley variety x time of planting

To study phenological development and its effect on yield in a range of barley cultivars at four planting dates.

Trial 87E42

Aphicide toxicology x barley variety.

Location: EDRS

To measure the effect of disulfoton (Disyston *R) applied as granules at seeding on barley, to determine if there is any phytotoxicity.

Trial 87ES40, 87E32

Barley variety x cereal aphids.

Location: Malijinup Field Station, Esperance Downs Research Station

To study the development of cereal aphids …

Crop Establishment Methods For Lupin Disease Management, M Sweetingham, V Chisholm, A Pelham

Experimental Summaries - Plant Research

Contents

A. Crop establishment methods for lupin disease management

1. Pleiochaeta root rot

1.1 Depth of sowing

87LG32, 87LG36, 87ME60, 87ME75

1.2 Cultivation and sowing depth

87WH47, 87NO77, 87M54

1.3 Seeding machinery and sowing depth

2. Brown leaf spot/Pleiochaeta root rot

Phosphorus nutrition and crop rotation

87ME62, 87LG39

3. Rhizoctonia hypocotyl rot

Fungicide seed treatment and sowing depth

87BA25

4. Rhizoctonia root rot

4.1 Cultivation and sowing depth

87NO74

4.2 Fungicide seed treatment

87NO78

B. Fungicide drench trials to determine casual organisms of root/hypocotyl rot 87NO75, 87NO76.

Research And Development Strategies For A Sustainable Agriculture, Charles A. Francis

Department of Agronomy and Horticulture: Faculty Publications

"Food production and rural income are two prime concerns of Third World governments. Increased food production and greater food security are goals which countries strive to achieve through agricultural development. The technologies generated by research, commonly known as green revolution methods, have provided an impetus to food production in some favored zones where resources are available to take advantage of this production package. New varieties, productive and responsive to fertilizer, have bought time while countries work to control population growth and develop agriculture and industry" (Francis and Harwood, 1985).

The pioneering work of the International Agricultural Research Centers has been …