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Lamb Marketing - Today And Tomorrow, Jeff Held

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

The major products from most commercial sheep flocks in the U.S. are lamb and wool. Basically, sheep operations can be classified into two categories, range and farm flocks. The range flocks are located in the semiarid regions of the country where feed resources are limited. Under this production system, producers emphasize traits which have the greatest economic advantage. Wool quality, lamb survivability and ewe adaptability are emphasized, with ewe prolificacy, seasonality and carcass merit having lower priority. In contrast, the farm flock operations are found in areas with unlimited feed resources. Compared to the range operation, the cost per animal …

Profitable Triplet Lamb Production, R. M. Jordan

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

Attitudes change with time, and so it is with attempting to have ewes raise triplet lambs. I well remember seeing western sheep producers reduce sets of twins to a big single lamb. Finally, in the late 1940's, they started to run separate twin bands. If the truth were known, many would now wish that all their ewes dropped twins. The farmer in the East River Country, as distinguished from the West River Rancher, usually prefers twin births. Then the Finn, a much maligned breed of sheep that produced more triplets than singles, came on the scene. While milk replacer has …

Evaluating Breeding Seasonality In The Ewe, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

The objective of trials reported in this study was to evaluate fall lambing performance of purebred and crossbred ewes in 1989 and 1990. Fall lambing results following hormone treatment were highly variable. Maiden ewes in general did not lamb in the fall. For mature ewes, approximately 80% of the Finn-Dorset x Targhee (FDT) ewes lambed in September compared to 66% for Columbia, 76.5% for Finn-Dorset (FD) and 0.0% for Hampshire ewes. Additional data and statistical analyses are needed before conclusions are drawn.

Sheep Pastures - A Godsend Or A Drag, R. M. Jordan

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

Too few sheep producers properly manage sheep on pasture. Many merely stand back and let them "fill up" on parasites. Why do so few of us truly understand how to manage the pasture forage so as to optimize production. Producers must understand how to sustain stand viability over a period of years, to minimize weed invasion, to vary production up or down according to need, or how to extend the grazing period (Early On--Late Off) . If you think you can do all of those things in a single field, with a single forage species and with no input of …

Jack Rabbit 1991, Students Association, South Dakota State University

Jack Rabbit Yearbooks

The 1991 Jack Rabbit Yearbook was created by the Student Association, South Dakota State University. It documents the 1990-1991 academic year.

Performance Response To Implants In Finishing Lambs, R. H. Pritchard

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

Anabolic implants that promote growth are widely used in cattle feeding. The implant Ralgro® is available to use in sheep at the 12-mg dose rate, but producer acceptance is limited. Questions about the efficacy of the implants and possible detrimental side effects may limit implant use. This experiment was conducted to evaluate production responses to Ralgro® implants in weaned feeder lambs.

1990-1991 Dairy Digest, South Dakota State University Dairy Club

Dairy Digest

No abstract provided.

Reproductive Performance Of Ewes Treated With Melatonin, A. L. Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

Extending the breeding season in the ewe offers several potential benefits to the producer. In addition, this may result in a more constant supply of fresh lamb which could have a major beneficial impact on the slaughter and merchandising segment of the industry. By nature, the ewe is a short day breeder, normally conceiving in the fall-winter period. Physiologically, the breeding season in the ewe is triggered by an increase in the blood level of the natural hormone melatonin. This is in response to the increasing length of daily darkness. Administration of exogenous melatonin should mimic the secretion of endogenous …

Lamb And Wool Production As Influenced By Breed Of Ewe And Management System (Progress Report), A. L. Slyter, Ron Swan, Larry Brence

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

The number of lambs marketed per ewe per year has been shown in a number of studies to be the most important single factor in determining total productivity of the ewe flock. Crossbred ewes are reported to have higher reproductive performance and superior maternal characteristics. Combining ewe breeds that have specific desirable strengths should result in a more productive crossbred ewe. Three breeds were chosen for their respective breed strengths: the Dorset for its long breeding season and milking ability, the Finn for its prolificacy, and the Targhee for its hardiness and wool quality. The combination used in this study …

Effects Of Limit Feeding A High Concentrate Diet On Feedlot Performance And Carcass Composition Of Lambs, W. W. Poland Jr., R. H. Pritchard, J. R. Males

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

Limit feeding high concentrate diets offers several potential benefits to lamb feeders. Limit feeding is one alternative to ad libitum feeding where intake is restricted to an amount which will permit animals to attain some predetermined daily weight gain. This type of feeding system provides a means to reduce day-to-day variations in feed intake, simplifies bunk management, and allows for greater control over feed inventories (Zinn, 1 986) . Using limit feeding to program a particular rate of gain also allows greater marketing flexibility. Restricting intake has been shown to improve the efficiency at which feed is converted into live …

Proceedings Of The South Dakota Academy Of Science, 1991, Volume 70., South Dakota Academy Of Science

Proceedings of the South Dakota Academy of Science

Proceedings of the South Dakota Academy of Science, 1991, Volume 70.

The table of contents lists the minutes of the seventy-sixth annual meeting, memorial statements for Charles Sidlo and Magnhild Minerva Torvik Greb, papers presented, abstracts, papers published by title only, and abstracts of award-winning junior papers.

The presidential address, titled Past, Present, and Future, was given by Mark L. Gabel.

The following senior research papers were presented at the seventy-sixth annual meeting held on April 18–20, 1991: Induction of Tetraploid Lilium longiflorum Thunb. Plants by Colchicine Treatment of Cultured Bulbscale Discs by O. M. Kafawin and C. H. Chen; …

Production Of Annual And Alternative Crops For Forage, Edward K. Twidwell

South Dakota Sheep Field Day Proceedings and Research Reports, 1991

Annual crops can be a valuable part of the normal farm operation. They are used to provide supplemental forage when perennial forage production is low. Additionally, under drought conditions these annual crops may be the only choices available for emergency sources of forage. There are also several alternative crops available that can be used as forage crops. This report provides some general information concerning these crops and also presents specific agronomic information in the form of a table.

South Dakota State University Graduation Exercises, December 15, 1990, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please be advised that the individuals listed in the program do not represent an official confirmation of having met the graduation requirements. The 1990 Fall Graduation Exercises will commence with an introduction by University President Robert T. Wagner. Serving as honorary marshals are Elizabeth K. Easton, Associate Professor Emeritus of Education, and Phillip E. Plumart, Professor Emeritus of Animal Science. The graduation address will be given by Dr. Mylo A. Hellickson, Associate Dean of the College of Agriculture and Biological Sciences and Director of the South Dakota Cooperative Extension Service. Dr. Carol J. Peterson, Vice President for Academic Affairs, will …

Livestock Budgets And Whole-Farm Economic Analysis: South Dakota Sustainable Agriculture Case Farms, Donald Taylor, Clarence Mends, Thomas L. Dobbs

Economics Research Reports (1969 - 2017)

In this report, livestock budgets for nine sustainable farmers in South Dakota who raise beef cattle and two of the same farmers who raise hogs are presented. Results of whole-farm economic analysis--in which the livestock, sustainable crop rotation, and non-sustainable rotation crop enterprise budgets on the respective farms are integrated with each other--are also presented. The final sections of the report cover results of analyses of (1) livestock price sensitivity and (2) on-farm manure production and disposition.

Sustainable Agriculture Development In China: Report Of A Field Visit, Donald Taylor

Economics Staff Paper Series (1969 - 2017)

China has a rich history of agricultural production practices involving the intensive and regenerative use of her soil and other natural resources. The challenge of having to feed a population in excess of 1 billion people that continues to grow and has become more well-to-do, especially in the last decade, is awesome. Because of intense pressure for added food production, China has been forced to shift toward the heavy use of externally-produced, purchased inputs to complement her traditional internally-produced inputs and farming practices. China's farming communities that once were largely self-sufficient now have many, varied linkages with the "outside world." …

Economic Analysis Of Rangeland Leasing Practices And Rates, Larry Janssen, Martin Beutler, John Cole

Economics Staff Paper Series (1969 - 2017)

Major Characteristics of 444 rangeland leasing arrangements used by South Dakota ranchers were examined. Econometric modeling results indicate lease rates per acre from 1986-1988 are explained by tract productivity (AUM's), tract size, regional location, selected leasing practices, and by type of lease (private, state, tribal trust, or federal).

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Comments from the lab Guest editorial is from the coordinator for Corn Utilization Council sponsored studies. He warns that the European Community is far ahead of us in ag research funding. [p] 2
Corn check-off Its money stays here in South Dakota for research and market development, says Corn Utilization Council administrator. Better corn prices will come when we keep the corn here, too. [p] 3
In' plastic bags: Cornstarch Three scientists from three different research areas work on biodegradable plastic film. One makes the film; another encourages his bacteria to eat it; the other measures their success. [p] 5 …

Impulse, Kara Donohue

Impulse (Jerome J. Lohr College of Engineering Publication)

Features:
[Page 2] Sander named engineering dean
[Page 3] Students create model of proposed laboratory
[Page 4] Kurtenbach named Distinguished Engineer
[Page 5] Governor creates Buckley award
[Page 5] Merit service award named for Buckley
[Page 5] Structural seminar draws many speakers

Special Section: Entrepreneurship:
[Page 6] Governor's proclamation
[Page 7-9] Entrepreneurs' Workshop offers training for successful business ventures
[Page 9] A letter from President Robert Wagner
[Page 10] Jerry Lohr to share his vision for entrepreneurial achievement
[Page 11] Engineering students excel in journalism
[Page 12] Entrepreneurs' Workshop schedule and registration form

Departments:
Alumni
[Page 13] Alumnus launches hydraulics …

South Dakota State University General Catalog 1990-1992, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

South Dakota State University One Hundred-Fourth Annual Commencement, May 5, 1990, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please be advised that the individuals listed in the program do not represent an official confirmation of having met the graduation requirements. The 104th Annual Commencement ceremony will commence with introductions by University President Robert T. Wagner. Serving as honorary marshals are Ilvernine T. Holder, Associate Professor Emeritus of Nursing, and Woodrow P. Wentzy, Assistant Professor Emeritus of Journalism. Dr. Carol J. Peterson, Vice President for Academic Affairs, will acknowledge faculty and student honors. The commencement address titled "Becoming Somebody" will be given by Meri Kay Van Veldhuizen, a candidate for graduation. Doctor of Science honorary degrees will be awarded …

Lyme Disease, John U. Thomson, B. H. Kantack

SDSU Extension Extra Archives

Epidemiologists and other experts in the field of infectious disease feel that, in the absence of AIDS, Lyme disease would be the disease of the decade. Because it is spread from animals to humans under natural conditions, people working in agriculture and in regions with high populations of dogs, cats, horses, and cattle, need to be aware of this disease (1,2,3).

Adsorption And Desorption Of Atrazine, Hydroxyatrazine, And S-Glutathione Atrazine On Two Soils, Sharon A. Clay, William C. Koskinen

Agronomy, Horticulture and Plant Science Faculty Publications

Adsorption and desorption isotherms for atrazine and two metabolites, hydroxyatrazine (HA) and S-glutathione atrazine (GSHA), were determined by batch equilibration on Plano and Waukegan silt loam soils at two soil pH levels (Plano, 6.1 and 4.5; Waukegan, 6.1 and 4.0). Freundlich adsorption isotherms were not affected by soil type except for GSHA at pH 4.0 to 4.5. When averaged over both soils, the order of adsorption at pH 6.1 was atrazine (Kf = 3.7) < GSHA (Kf = 7.3) << HA (Kf = 25) and at pH 4.0–4.5 was atrazine (Kf = 6.1) << HA (Kf = 58) ≤ GSHA (Kf: Plano = 35; Waukegan = 78). The average slope of the adsorption isotherms (1/nads) was 0.81. The slopes of all desorption isotherms (1/ndes) were less than their respective 1/nads, indicating hysteresis. Atrazine desorbed into soil solution (1/ndes > 0.0). With the exception of GSHA which desorbed from the pH 6.1 Plano silt loam (1/ndes = 0.15), desorption of HA and GSHA from other treatments …

1990 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Summaries Of Forage Research, K. D. Kephart

Agricultural Experiment Station Circulars (1920-1915)

Identification of alternative crops capable of producing high quality forage in conditions not conducive for alfalfa or perennial grass production would be desirable. The production of high quality forages in large quantities is the basis of any successful dairy enterprise. This will reduce the necessity of purchasing expensive supplemental grain and protein sources. Certain warm-season annual grasses and legumes, when harvested at the proper stage of maturity, are capable of producing high quality forage in large quantities where conditions are not suitable for alfalfa production. The objects was to evaluate the forage production and chemical composition at two cutting dates …

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1989, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1989 progress report for the Central Crops and Soils Research Station at Highmore, South Dakota State College. This document represents the research conducted at the Station during the 1989 crop season including: weather data, forage yields of crops as influenced by planting dates, alfalfa yield testing, response of crested wheatgrass to phosphorus applications, oat research, spring and winter wheat breeding, herbicide evaluations, flield evaluations, and information on the Station drip irrigation project.

A Five-Year Case History Of Retained Ownership, D.M. Marshall, J.J. Wagner

South Dakota Beef Report, 1990

A case history of retaining ownership of steer calves from weaning through slaughter was examined for calves born in 1985 through 1989. Calves were reared to weaning at the SDSU Antelope Range Livestock Station and following weaning were managed under a custom feedlot arrangement. Retaining ownership from weaning through slaughter resulted in profits of $1.83, $215.41, $162.75, $78.58 and $80.65 (excluding interest on calf) for the 1985 through 1989 calf crops, respectively. Cattle prices, feed costs and postweaning profitability tended to vary over years considerably more than cattle performance.

The Economics Of Placing Heavy Steers Back In The Feedlot, C.M. Pankonin, R.H. Pritchard

South Dakota Beef Report, 1990

In the fall of 1989, 30 fed steers (1,069 Ib) marketed through the Sioux Falls Stockyards were purchased by a feeder to go back on feed rather than to slaughter. The cattle were purchased for $70/cwt on a $63/cwt fed steer market. These steers were previously on trial at the SDSU research feedlot. Thirty-two contemporary steers were retained at SDSU for determining subsequent costs of production and economic risks of placing heavy cattle on feed. The fed steer and futures markets were tracked for the next 27 days. During this period, there was no potential for profit based on break …

Feed Utilization By Steers With Chronic Cryptosporidia Infection, R.H. Pritchard, J.U. Thomson, C.D. Mullaney

South Dakota Beef Report, 1990

The effect of chronic cryptosporidia infection on feed utilization by yearling steers was evaluated. Two control and two infected steers were fed a corn silage based diet. lnfected steers had shown evidence of cryptosporidia infection over a 6-month period prior to determining feed digestibility. Digestibilities of dry matter (58.1 vs 54.0 ± 3.9%), NDF (51.7 vs 54.6 ± 2.5%), ADF (35.8 34.8 ± 7.1%) and crude protein (45.0 vs 45.9 ± 5.3%) were unaffected (P>.10) by parasite infection for control and infected steers, respectively.

Preweaning Processing Anthelmintic Treatment And Post Weaning Effects Of Sulfamethazine Based Medications On Performance Traits And Oocyst Shedding In Weaned Calves, R.H. Pritchard, J.U. Thomson, M.A. Robbins

South Dakota Beef Report, 1990

Two trials were conducted to evaluate antibiotic therapies for feeder calves originating in western South Dakota. In Trial 1, processing-anthelmintic treatment 28 days before weaning reduced ranch gains and provided no advantage in feedlot gains when calves were reprocessed. Processing included deworming, grubicide treatment, implanting and vaccination. Sulfamethazine medication caused transient improvements in feedlot performance during the feedlot receiving period in both trials. Supertherapeutic treatment with AS 700 offered no advantage in feedlot performance over therapeutic feeding in these calves. Sulfamethazine exposure suppressed coccidia oocyst shedding and appears to be an effective means of controlling coccidiosis and shipping fever complex …

Effects Of Estradiol-Trenbalone Acetate Implant Combinations On Feedlot Performance And Carcass Traits Of Two Steer Types, R.H. Pritchard, D.H. Gee, M.A. Robbins

South Dakota Beef Report, 1990

Hereford x Angus (HA) and predominantly Gelbvieh cross (Gx) steer calves either received no implant (control) or were implanted initially and again at 77 days on feed with a combination of estradiol and trenbalone acetate based implants. Calves were started on feed in December weighing 677 Ib and fed for 146 to 167 days. Fed for a common period of time, implanting steers increased (Pc.05) ADG, dry matter intake, final weight, carcass weight, rib fat thickness and yield grade. Implanting reduced (Pc.01) marbling scores. Gx steers were heavier and grew more rapidly than HA steers. There were no interactions between …