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Ensiled High-Moisture Corn Inoculated With A Biological Additive For Growing-Finishing Lambs, Richard M. Luther, Cherie Lakner Jan 1985

Ensiled High-Moisture Corn Inoculated With A Biological Additive For Growing-Finishing Lambs, Richard M. Luther, Cherie Lakner

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

The effect of biological silage additive, Lactobacillus plantarum, on the feeding value and chemical characteristics of high-moisture corn was determined in a 123-day trial with growing-finishing lambs. Lambs (62 lb. average) fed untreated or inoculated corn performed similarly in terms of body weight gain, feed intake or feed efficiency. The corn treated with the microbial preparation was of higher quality as indicated by the lower pH and higher titratable acidity at feeding compared to the untreated corn.

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Chemical Weed Control In Small Grain And Forages : 1985, Cooperative Extension South Dakota State University Jan 1985

Chemical Weed Control In Small Grain And Forages : 1985, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

This document covers a large number of chemical weed control options across a variety of small grains and forages in South Dakota for 1985. This Fact Sheet is designed to provide a summary of herbicide usage options. The chemical options are listed in a table, which is broken into the following sections: Oats, “Wheat, Rye, Barley,” Flax, “Special Weed Problems,” “Small Grain,” “Proso Millet,” “Special Weed Problems,” and “No-Till Small Grain.”

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Jack Rabbit 1985, Students Association, South Dakota State University Jan 1985

Jack Rabbit 1985, Students Association, South Dakota State University

Jack Rabbit Yearbooks

The 1985 Jack Rabbit Yearbook created by the Student Association, South Dakota State University. It documents the 1984-1985 academic year.

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News From The South Dakota Memorial Art Center, Winter 1985, South Dakota State University Jan 1985

News From The South Dakota Memorial Art Center, Winter 1985, South Dakota State University

South Dakota Art Museum Newsletters and Publications

American Artists' Prints
Native American Painting
Raul Ponce De Leon
The Peyote Road
Harvey Dunn: Son of the Middle Border
The Thursday Evening Film Series
Memorial Art Center Guild Members Completed a Week-Long Docent Training Program
Tuthill Sculptures Given
Schreiber Print Given

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Effects Of Breed Of Ewe And Management System On The Production Of Lamb And Wool, W. J. Busch, A. L. Slyter Jan 1985

Effects Of Breed Of Ewe And Management System On The Production Of Lamb And Wool, W. J. Busch, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

The ability of ewe lambs to produce a lamb crop at 12 months of age can improve the economic outcome for sheep production. In addition to environmental factors, breed differences in ewe lamb fertility exist. The Targhee is a typical ewe breed popular in range lambing systems. The Suffolk is a popular meat-type breed used in many farm flock system. The Finnsheep is a breed known for multiple births and early maturity. Typically, fertility is improved by crossbreeding. The two most meaningful measures of ewe flock productivity are pounds of wool produced and pounds of lamb weaned per ewe exposed. …

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Effects Of Breed Of Ewe And Management System On The Production Of Lamb And Wool 5. Effect Of Lambing At 12-14 Months On Cumulative Lifetime Production, W. J. Busch, A. L. Slyter Jan 1985

Effects Of Breed Of Ewe And Management System On The Production Of Lamb And Wool 5. Effect Of Lambing At 12-14 Months On Cumulative Lifetime Production, W. J. Busch, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

Data from Targhee, Suffolk x Targhee and Finnsheep x Targhee ewes which had completed a lifetime production study were used to determine the effect of lambing at 12 to 14 months on cumulative production. Ewes that lambed at 1 year of age gave birth to and weaned more lambs as well as gave birth to and weaned more pounds of lamb on a cumulative basis than ewes that failed to lamb at 1 year of age. Wool production was similar for the two groups of ewes. Ewes that produced a lamb at 1 year of age were more productive than …

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Synchronizing Estrus With 5 Or 10 Mg Prostaglandin F2Α In The Ewe, K. F. Hoppe, A. L. Slyter Jan 1985

Synchronizing Estrus With 5 Or 10 Mg Prostaglandin F2Α In The Ewe, K. F. Hoppe, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

The length of the breeding period can be decreased through estrous synchronization. This enables the producer to reduce the length of the resulting lambing period allowing for more efficient use of labor and facilities during lambing. Past synchronization trials at this station have found intramuscular injections of 10 or 15 mg PGF to be effective in synchronizing estrus during the normal breeding season. This study evaluates 5 or 10 mg PGF for relative effectiveness for estrous synchronization.

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Induction Of Lambing At Weekly Intervals, A. L. Slyter, W. J. Busch, L. B. Bilger Jan 1985

Induction Of Lambing At Weekly Intervals, A. L. Slyter, W. J. Busch, L. B. Bilger

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

Lambing season is the time in the sheep production year which demands the largest input of labor. Due to problems associated with the birth process, it is also one of the most critical times. By controlling the time of parturition, producers are better able to schedule labor and facilities more effectively. Ewes induced to lamb on specified days allow for more uniform groups of lambs for management practices. Flumethasone, a glucocorticoid, will induce parturition in ewes when administered late in gestation. The objective of this study was to determine the optimum range of days for once per week treatment for …

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Control Of Lambing Through Synchronization Of Estrus And Induction Of Parturition, A. L. Slyter, K. F. Hoppe Jan 1985

Control Of Lambing Through Synchronization Of Estrus And Induction Of Parturition, A. L. Slyter, K. F. Hoppe

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

The ability to program the time of birth for our livestock species offers several advantages to the producer. By concentrating lambing into a short defined period or periods it allows better utilization of labor and facilities. In addition, it should increase lamb survival since better supervision can be maintained for these specific periods. Furthermore, lambs are grouped more closely by age and can be more uniformly managed in such groups. Two trials (1983-84 and 1984-85) were conducted to study the effectiveness to prostaglandin F2α to synchronize estrus and flumethasone to induce parturition in a planned lambing program.

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1985 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University Jan 1985

1985 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

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Wildlife Response To Stand Structure Of Green Ash Woodlands, Robert A. Hodorff Jan 1985

Wildlife Response To Stand Structure Of Green Ash Woodlands, Robert A. Hodorff

Electronic Theses and Dissertations

Vegetation, birds and mammals were sampled over two years in two types of green ash woodlands in extreme northwestern South Dakota. Woodlands referred to as closed canopy stands consisted of dense stands of various species of trees and shrubs in different size and age classes. Woodlands referred to as open canopy stands had sparse stands of older trees, with intermediate seedling, sapling and tall shrub layers nearly absent. Closed stands had significantly greater (P = .002) coverage of shrubs in the understory than open stands while open stands had significantly greater (P = .004) total coverage of grasses than closed …

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Evaluation Of Seasonal Habitat Use By White-Tailed Deer In Eastern South Dakota, Thomas James Kramlich Jan 1985

Evaluation Of Seasonal Habitat Use By White-Tailed Deer In Eastern South Dakota, Thomas James Kramlich

Electronic Theses and Dissertations

Seasonal use of selected habitat types by white-tailed deer (Odocoileus virginianus) was investigated using radio telemetry locations during 1983 and 1984, on a predominantly agricultural area in east-central South Dakota. In the summer of 1983, radio-collared deer used corn, shelterbelts, and wetlands in proportion to their availability. Soybeans, grainfields, and grasslands were avoided. Deer selected shelterbelts in the fall and wetlands during the winter months, for protective cover. Habitat use shifted in the spring and shelterbelts received heavy use, once they became free of drifted snow. Shelterbelts continued to be selected by deer during the summer of 1984. IN the …

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Effectiveness Of Shelterbelts In Improving Microclimatic Conditions For Pheasants In Eastern South Dakota, Todd Matthew Schneider Jan 1985

Effectiveness Of Shelterbelts In Improving Microclimatic Conditions For Pheasants In Eastern South Dakota, Todd Matthew Schneider

Electronic Theses and Dissertations

To evaluate wintering habitat for ring-necked pheasants (Phasianus colchicus), this study compared microclimate regimes , as determined by wind and temperature, between shelterbelts containing 1 or 2 rows of coniferous tree species with shelterbelts comprised entirely of deciduous tree species and between wetland and shelterbelt habitats. Maximum temperatures within both shelterbelt types, particularly deciduous shelterbelts, were cooler than outside ambient air temperature during summer. Throughout November, December, and January, minimum temperatures in coniferous shelterbelts types were significantly (P≤0.04) warmer than deciduous shelterbelt types. Effectiveness of shelterbelts in reducing wind velocity decreased from an average of 71% during summer to 28% …

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Extruded Blend Of Soybean Meal And Sunflower Seeds For Dairy Cattle In Early Lactation, James K. Drackley Jan 1985

Extruded Blend Of Soybean Meal And Sunflower Seeds For Dairy Cattle In Early Lactation, James K. Drackley

Electronic Theses and Dissertations

An extruded blend of 44% crude protein soybean meal (50%), sunflower seeds (45%), and premix (5%) was evaluated as a protein and energy source for dairy cows in early lactation. Thirty Holstein cows (24 multiparos and 6 primiparous) were assigned to either a corn-oats-soybean meal concentrate (SBM) or a concentrate where soy-sunflower blend replaced all soybean meal and portions of corn and oats (SSF). Dry matter of total mixed diets was 36% corn silage, 21% alfalfa haylage, and 43% concentrate. Yields of milk (33.6 and 33.8 kg/day) and 4% fat-corrected milk (30.9 and 30.5 kg/day) were similar for cows fed …

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Protected Methionine And Heat-Treated Soybean Meal For High-Producing Dairy Cows, Che-Ming Jimmy Yang Jan 1985

Protected Methionine And Heat-Treated Soybean Meal For High-Producing Dairy Cows, Che-Ming Jimmy Yang

Electronic Theses and Dissertations

The effectiveness of a rumen-protected methionine preparation was studied as an amino acid source for high-producing dairy cows during wk 4 through 16 postpartum. Twenty-four Holstein cows (14 primiparous and 10 multiparous) were fed concentrate containing heat-treated· soybean meal without or with 50 g/cow/day of added ruminally protected methionine product which provided 15 g of added DL-methionine daily. Cows were fed 16% crude protein mixed diets containing 30% of dry matter as corn silage, 15% as alfalfa hay, and 55% as concentrate. Milk production and composition were adjusted for pretreatment values (3 wk postpartum) by analysis of covariance. Adjusted milk …

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The Effects Of The Diet Suggested In The United States Dietary Goals On Serum Cholesterol Levels, Paula Kay Peters Madigan Jan 1985

The Effects Of The Diet Suggested In The United States Dietary Goals On Serum Cholesterol Levels, Paula Kay Peters Madigan

Electronic Theses and Dissertations

The effects of the diet suggested in the United States Dietary Goals on serum cholesterol levels was studied by using male Holtzman rats. There were twelve experimental diets. All of the diets contained 28% of total calories as fat. The type of fat was either saturated, unsaturated, or half saturated and half unsaturated. Two sources of carbohydrate, sucrose and cornstarch, and tw6 levels of each, 52% and 62%, were examined. The source of protein was the same in all diets, but varied in amount, 10% or 20% of total calories. The type of fat did not yield a significant difference …

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The Effect Of Prostaglandin F2cl Administered During Early Gestation In Ewes, Paul E. Naasz Jan 1985

The Effect Of Prostaglandin F2cl Administered During Early Gestation In Ewes, Paul E. Naasz

Electronic Theses and Dissertations

Synchronization of estrus in the cyclic ewe can be accomplished by the use of prostaglandin F2a. Estrous synchronization offers the possibility of more uniform offspring, concentration of parturition which would allow for better use of facilities and labor, and the utilization of outstanding sires through artificial insemination. Some current estrous synchronization regimes for ewes consist of exposure to rams for a period of time followed by an intramuscular injection of prostaglandin F2a (PGF) to all ewes that have not previously mated. Administration of PGF to ewes that have already mated, however, may lead to termination of pregnancy. Before application of …

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A Laboratory Study Concerning The Control Of Black-Tailed Prairie Dogs (Cynomys Ludovicianus) With Sodium Monofluoroacetate (Compound 1080), Charles David Ward Jan 1985

A Laboratory Study Concerning The Control Of Black-Tailed Prairie Dogs (Cynomys Ludovicianus) With Sodium Monofluoroacetate (Compound 1080), Charles David Ward

Electronic Theses and Dissertations

Sodium monofluoroacetate (Compound 1080) is a highly toxic rodenticide which has ·been used in control of prairie dogs (Cynomys spp.). The toxic effects of Compound 1080 to non-target species caused Compound 10SO to be banned as a rodenticide. This study was initiated to develop a low-level bait which could be effective in prairie dog control and would have a higher margin of safety to non-target species. Compound 1080 was administered to 83 black-tailed prairie dogs (Cynomys ludovicianus). The primary research objective was to determine the acute ·oral median lethal dose (LD50) in black-tailed prairie dogs. This was established at 0.173 …

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Studies On The Immune Response To Bovine Herpesvirus Type 4 (Bhv-4) In Cattle, Shirley K. Wynia Jan 1985

Studies On The Immune Response To Bovine Herpesvirus Type 4 (Bhv-4) In Cattle, Shirley K. Wynia

Electronic Theses and Dissertations

Systemic cell mediated, systemic antibody, and local antibody responses were evaluated in cattle inoculated with bovine herpesvirus type 4 (BHV-4). Experiment 1 was designed to evaluate an in vitro lymphocyte transformation assay to quantitate the response of peripheral blood leukocytes (PBL) from cattle to BHV-4 infected target cells. Three types of target cells, bovine embryonic lung, bovine skin fibroblast-13, and Vero, were inoculated with BHV-4 at different multiplicities of infection and fixed in glutaraldehyde to retain BHV-4 surface antigens. Optimum effector to target cell ratios and length of incubation for the assay were also determined. Vero cells infected at an …

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The Relationship Between Age-And Sex-Specific Death Rates And Quality Of Life Factors In The South Dakota Population 65 Years Of Age And Older In 1960, 1970 And 1980, Joyce I. Nelson Jan 1985

The Relationship Between Age-And Sex-Specific Death Rates And Quality Of Life Factors In The South Dakota Population 65 Years Of Age And Older In 1960, 1970 And 1980, Joyce I. Nelson

Electronic Theses and Dissertations

This study investigated age- and sex-specific death rates in South Dakota Counties among the population 65 and over in 1960, 1970 and 1980. Census Bureau and Vital Statistic data were employed to answer the basic question of how death rates and quality of life factors were related. Quality of life factors included; economics, urbanization, health technology, and education, which were operationalized at the county level. A description of county quality of life factors and age- and sex-specific death rates for males and females was presented. County death rates for the older population were regressed with county quality of life factors …

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Lungworm Infections, Reproduction And Summer Habitat Use Of Bighorn Sheep In Custer State Park, South Dakota, Gary C. Brundige Jan 1985

Lungworm Infections, Reproduction And Summer Habitat Use Of Bighorn Sheep In Custer State Park, South Dakota, Gary C. Brundige

Electronic Theses and Dissertations

Bighorn sheep (Ovis canadensis) were once indigenous to the Black Hills and Badlands of South Dakota. When European settlers moved into this region during the late 1800' s, market hunting, loss of habitat, and introduction of animal diseases and parasites caused the subspecies of the region, the Audubon's bighorn sheep (O. c. auduboni), to become extinct by 1916 (Buechner 1960). To reestablish bighorn sheep in the Black Hills, 8 Rocky Mountain bighorn sheep (O. c. canadensis) were introduced into the former range of the Audubon's sheep in 1922. Finding the habitat to be very suitable, this small population increased to …

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The Performance Of Quartzite And Natural Aggregate In Flexible Pavement : A Case Study, Mohammed Hossien Roghani Jan 1985

The Performance Of Quartzite And Natural Aggregate In Flexible Pavement : A Case Study, Mohammed Hossien Roghani

Electronic Theses and Dissertations

Two parking lots, one made of quartzite and the other made of natural aggregate, were compared using the Marshall method mix design test, skid resistance tests, and economic studies. It was found that the pavement with quartzite uses 13.3% less asphalt, gives a higher mean skid resistance, and saves 0.13 dollars per square yard per year during the life span of the pavement assumed in this study. It was determined that quartzite pavement is preferable to pavement with natural aggregate. The flexible pavement structure in a parking lot must have enough stability to meet the load exerted from parked cars …

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The Sandhills Of South Dakota : A Regional Study, Robert E. Weimer Jan 1985

The Sandhills Of South Dakota : A Regional Study, Robert E. Weimer

Electronic Theses and Dissertations

This thesis is a systematic regional study of the Sandhills of South Dakota. The Sandhills of South Dakota occupy an area of slightly more than 400 square miles in south central South Dakota and are a northward extension of the much larger expanse of Nebraska Sandhills. Their distribution in South Dakota includes the southern portions of Shannon, Bennett, Todd, and Tripp counties. The Sandhills extend northward from the South Dakota-Nebraska border approximately five miles. Their east-west extent is some 100 miles. Sand dunes comprise the prevailing surface formation of the Sandhills. The dunes resulted from erosion of the underlying loosely …

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Comparative Nutritive Value Of Soybean Meal, Sunflower Meal, And Meat And Bone Meal For Egg Production, Smart M. Oruseibio Jan 1985

Comparative Nutritive Value Of Soybean Meal, Sunflower Meal, And Meat And Bone Meal For Egg Production, Smart M. Oruseibio

Electronic Theses and Dissertations

Two experiments were conducted over a period of two years to evaluate the comparative nutritive value of soybean meal, sunflower meal, and meat and bone meal. Experiment 1 consisted of 864 Babcock--3OO pullets randomly distributed into twelve diet treatments. Each treatment was replicated six-times with twelve birds per unit. Layers diets were formulated at 16, 14, and 12% protein levels with and without amino acid supplementation. The 12% amino acid supplemented level served as the control in the experiment. Soybean meal, sum-lower meal, and eat_ and bone meal were utilized as major sources of protein supplement in yellow-corn based diets. …

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Response Of Five Spring Wheat Cultivars To Drought, Gregory Keith Hess Jan 1985

Response Of Five Spring Wheat Cultivars To Drought, Gregory Keith Hess

Electronic Theses and Dissertations

Response of plants to water stress are numerous and interrelated. Morphological traits and growth patterns have been studied and reviewed extensively. Root growth patterns, leaf area and thickness, presence of cuticle hair and waxes, leaf movement, and wilting are only a few traits studied. Metabolic functions and how water stress affects these processes through stomatal behavior, transpiration rates and carbon dioxide exchange rates have also been reviewed. Plant breeders are continually searching for traits which aid in selecting for high yielding genotypes in any one environment. Moisture is often limiting in South Dakota's environment, leading to relatively low grain yields …

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Effects Of Partial Homogenization Of Milk On Yield And Quality Of Cheddar Cheese, Anand Rao Jan 1985

Effects Of Partial Homogenization Of Milk On Yield And Quality Of Cheddar Cheese, Anand Rao

Electronic Theses and Dissertations

In the past decade, the cheese industry in the United States (US) has grown rapidly, with cheese sales increasing by 33% (36). The cheese industry, in 1983, utilized 29.2% of total US milkfat supply as compared to 20.3% utilization in 1973 (36). Compared to the total cheese production of 2,059,2Z8 kg (4,539,822 lb) in 1982, 2,185,611 kg (4,818,449 lb) of cheese were manufactured in 1983 in the .US (36). The increased production of cheese was made possible by modifications in the cheese making process and advent of modern equipment; and it was fostered by increased demand .and higher prices. One …

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Effect Of Prostaglandin F2Α Administered During Early Gestation In Ewes, P. E. Naasz, A. L. Slyter Jan 1985

Effect Of Prostaglandin F2Α Administered During Early Gestation In Ewes, P. E. Naasz, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

The effect of prostglandin F2α (PGF) on gestation in the ewe following mating was evaluated during the 1983-84 and 1984-85 breeding-lambing season. Ewes were exposed to Suffolk (trial I) or Hampshire (trial II) rams and received 10 mg of PGF intramuscularly on either day 1, 2, 3, 4, 5, 6 pr 7 postmating in trial I or on either day 2, 2, 1/2, 3, 3 1/2, 4, 4 1/2, 5, 5 1/2, 6 or 6 1/2 postmating in trial II. Administration of PGF later than day 4 decreased the number of ewes lambing to the first mating but had no …

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Relative Effectiveness Of Estrous Synchronization Methods In The Ewe, K. F. Hoppe, A. L. Slyter Jan 1985

Relative Effectiveness Of Estrous Synchronization Methods In The Ewe, K. F. Hoppe, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

The value of synchronization is in reducing the breeding period. Prostaglandin F2α (PGF) has been demonstrated to effectively synchronize ewes during the normal breeding season. Different methods of synchronizing estrus with PGF have been proposed. The purpose of this trial was to compare the relative effectiveness of singular PGF injection vs. a dual injection of PGF 10 days apart to a control for synchronizing estrus in the ewe during the normal breeding season.

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Effects Of Breed Of Ewe And Management System On The Production Of Lamb And Wool 4. Cumulative Production Per Ewe Entering The Study, W. J. Busch, A. L. Slyter Jan 1985

Effects Of Breed Of Ewe And Management System On The Production Of Lamb And Wool 4. Cumulative Production Per Ewe Entering The Study, W. J. Busch, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

Total lifetime weight of lamb weaned and weight of wool produced per ewe of the original flock is a meaningful way of expressing the overall economic advantage in production from various breeds or production situations because it takes longevity into consideration. Longevity will have an impact on lifetime production. Very few accurate figures are available for attrition rates for various groups of ewes. It is reasonable to figure an overall reduction from culling and death of about 5% the first year and 10% per year thereafter. At least part of the breed or production system differences in cumulative lamb and …

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Preliminary Studies With Lambs On The Utilization Of Corn Silage Treated With A Biological Additive, Richard M. Luther Jan 1985

Preliminary Studies With Lambs On The Utilization Of Corn Silage Treated With A Biological Additive, Richard M. Luther

South Dakota Sheep Field Day Proceedings and Research Reports, 1985

The object of this experiment was to study the value of an experimental biological additive as an enhancer of the chemical composition and feeding value of corn silage. Growing lambs were used to measure the effect of treatment on digestibility and nitrogen retention.

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