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Response Of Finishing Pigs With Different Rates Of Prior Performance To Antimicrobials Fed At Growth Promoting Or Therapeutic Levels, C. R. Hamilton, G. W. Libal, R. C. Wahlstrom, R. Hansen

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Previous work conducted at· this station has involved sorting pigs according to prior performance during the grower period into uniform groups for the finishing period. Results of these studies suggest that pigs having slow previous growth rates continued to grow more slowly than pigs with fast or intermediate prior growth rates. Further, the use of growth promoting levels of antimicrobials appeared to stimulate the performance of pigs having fast and intermediate growth rates without a similar improvement in the performance of slow growing pigs. Therapeutic levels of antimicrobials were observed to improve average daily gains in a study utilizing slow …

Sdsu Nutrient Recommendations For Swine - 1985, Swine Nutrition Group

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Feed cost currently comprise about 60% of the total production cost for most swine producers. Thus, a good nutritional program is an essential part of any successful swine enterprise. The nutrient recommendations listed in tables 1 and 2 should produce optimal growth and reproductive performance when used along with a sound management program.

Influence Of Gestation Energy On Large White X Landrace Sow Productivity, M. K. Hoppe, G. W. Libal, R. C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Production remains extremely important in our swine industry today. In the past 5-10 years, there has been an increase in the usage of white breeds in swine herds. The white or mother breeds are noted for their increased productivity; however, a question has stirred as to the feeding regime of these productive females. This question is important as feed costs are the major portion of operating expenses for the hog producers. Little controlled research has been conducted in the United States to establish the caloric intake requirement of the white sows during gestation. The National Research Council (NRC, 1979) lists …

Twenty-Ninth Annual Swine Day, Animal Science Department

South Dakota Swine Field Day Proceedings and Research Reports, 1985

These are the complete proceedings of the twenty-ninth annual South Dakota Swine Field Day held on November 21, 1985 at South Dakota State University.

Effect Of Tryptophan Supplementation Of A Low Protein, Corn-Sunflower Meal Diet For Young Growing Pigs, B. S. Borg, G. W. Libal, R. C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Research conducted at South Dakota State University and reported in the 1983 and 1984 Swine Field Day Proceedings, indicated that the amino acid tryptophan is limiting in a lysine supplemented, 12% protein, corn-sunflower meal diet fed to young weaned pigs. This trial was conducted to further study the effects of tryptophan supplementation of an amino acid fortified, 12% protein, corn-sunflower meal diet and to estimate the dietary tryptophan requirement of the young weaned pig fed that diet.

Oats For Growing-Finishing Swine, R. C. Wahlstrom, G. W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1985

South Dakota has the distinction of ranking first in production of oats by states in the United States. Thus, there is a considerable amount of oats available for livestock feeding in South Dakota. Oats is higher in fiber and lower in energy than other cereal grains. The amount of oats that may be included in diets for growing-finishing swine without affecting performance is in the range of 20 to 50%, depending on the variety and quality of the oats. Research has also shown that pigs utilize fiber better in cold temperature than in warm temperatures.
The objective of this experiment …

The Effect Of Pen Space And Vitamin C Addition To The Diet On Weanling Pig Performance, G. W. Libal, D. A. Jensen, R. C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1985

It is assumed that there is no dietary requirement for vitamin C by the pig. However, recently there has been some indication that, under certain conditions, vitamin C or ascorbic acid may boost pig performance. Vitamin C is involved in development of the immune response. Therefore, if a requirement for dietary vitamin C exists, it should be demonstrated with pigs under stressed conditions. The study reported in this paper is a part of a cooperative project by the NCR-89 Committee on Confinement Management of Swine. It is designed to evaluate the response of weaned pigs to a vitamin C addition …

Effect Of Level Of Barley In Finishing Diets Of Swine Performance And Carcass Characteristics, R. C. Wahlstrom, M. K. Hoppe, G. W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Barley continues to be a feed ingredient available to swine producers in South Dakota, that can be used as a substitute for corn. In experiments reported in the 1984 South Dakota Swine Day Proceedings we reported that pigs fed barley diets gained slower during the grower period (60 to 125 lbs) but not during the finisher period (125 to 220 lb). This experiment was designed to evaluate various levels of barley, 0 to 100% of the grain, in diets fed to pigs from an average of 80 to 220 lb market weight.

The Effect Of Protein Level And Amino Acid Supplementation Of Sunflower Meal Diets For Young Pigs, B. S. Borg, G. W. Libal, R. C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Dietary protein recommendations for pigs were developed using corn-soybean meal diets. Diets formulated to contain less protein than recommended will result in reduced performance because of a deficiency of amino acid(s). However, more recent research suggests that pig performance can be maintained when feeding diets containing a substantially reduced protein content if limiting amino acids are supplemented to meet dietary requirements. Previous research at South Dakota State University has identified lysine, tryptophan and threonine as deficient amino acids in a 12% protein, corn-sunflower meal diet. The objectives of the trial reported herein were to study the effect of protein level …

Nutrient Analysis Of South Dakota Swine Feeds, C. Ross Hamilton

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Current economical conditions-have forced swine producers to utilize available resources efficiently to reduce production cost. A major portion of the production cost in most swine enterprises may be attributed to obtaining, handling and processing feeds. Grains are utilized as a source of dietary energy and constitute a major portion of swine diets. Thus, the practice of evaluating all feed grains available in a given geographic area to determine the grains providing the most economical gains other than feeding only those grains raised by the individual producer is expected to increase. Producers must understand how grains differ in their nutritional and …

Effect Of Threonine Supplementation Of A Low Protein, Corn-Sunflower Meal Diet For Young Growing Pigs, B. S. Borg, G. W. Libal, R. C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Of the ten essential amino acids required by swine, lysine, tryptophan and threonine have been reported by many researchers as being the first three limiting amino acids in cereal based swine diets. Research reported in the 1984 Swine Field Day Proceedings suggested supplementation of threonine to an amino acid fortified, low protein, corn-sunflower meal diet improves weanling pig performance.
This trial was conducted as a continuation of the study of the effects of threonine supplementation an amino acid fortified, low protein, corn-sunflower meal diet and to estimate the dietary requirement of threonine of young growing pigs.

Performance Of Finishing Pigs As Affected By Prior Performance And The Addition Of An Antibiotic During The Finishing Period, G. W. Libal, R. C. Wahlstrom, R. Hanson

South Dakota Swine Field Day Proceedings and Research Reports, 1985

In a study reported last year (SWINE 84-12), we reported that pigs which had grown slowly from 50 to 115 lb continued to grow slower to market weight than their medium or fast growing counterparts. It was also found that the addition of a growth promoting level of an antibiotic failed to increase performance of the slow growing pigs. The study reported herein is a repeat of the previous study to verify the results.

Effect Of Protein Level, Lysine And Oats In Diets For Growing-Finishing Pigs, R. C. Wahlstrom, B. S. Sorg, G. W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1985

Previous research has shown that the protein content of swine diets can be reduced approximately two percent if the diet is supplemented with lysine and if the diet is not deficient in other amino acids. Corn-soybean meal diets that are reduced more than two percent in protein may become deficient in the amino acid tryptophan. Oats contains more lysine and tryptophan but less energy than corn. However, dietary levels of 20 to 30% oats have generally not affected pig performance. The objectives of this experiment were to evaluate the protein and lysine needs of growing-finishing pigs and to determine the …

South Dakota Animal Disease Research And Diagnostic Laboratory Poultry Disease Investigations, M. W. Vorhies

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

The South Dakota poultry industry may not be relatively large, and disease problems are minimal due to excellent preventative health programs available to the industry. The Animal Disease Research and Diagnostic Laboratory does provide a full service support system. Following is a list of diagnoses made from case submissions. The basic overall conclusion is that no serious epidemic disease processes occurred. Environmental house management is very important in controlling some infectious diseases of turkeys.

Meat And Bone Meal With Various Grains For Egg Producation, Ali B. Kashani, C. Wendell Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

As the sole protein supplement in corn-type diets for laying hens, meat and bone meal has not allowed for satisfactory performance in studies conducted at South Dakota State University (Poultry 81-6, 82-8, 83-2,84-1). With meat and bone meal as the only protein supplement, feed intake is reduced and poor egg production and feed utilization results. The effects were most marked with 12^ protein diets, even with lysine and methionine made adequate by NRC standards.

Seventeenth Annual Poultry Field Day, Animal Science Department

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

These are the complete proceedings of the seventeenth annual Poultry Field Day held on November 7th, 1985.

Canola Meal As A Protein Supplement For Laying Hens, C. Wendell Carlson, A. B. Kashani

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

Canola meal is obtained from a special strain of rapeseed developed by Canadian plant breeders to be low in erucic acid (an odd-number carbon chain fatty acid) and glucosinic acid, both of which produce undesirable effects in livestock and poultry. With the minimization of these factors, Canola could be a potential for supplying some of the protein needs in animal feeds, and already has become popular in the western Canadian provinces. Because of this it was deemed appropriate to consider Canola for egg production in studying protein sources at South Dakota State University.

Pelleting Turkey Diets, M. Hassibi, A. B. Kashani, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

The pelleting process for feed production consists of compressing feed into pellets suitable for the particular animal involved. Feed is forced through small holes in a round die, utilizing steam. Some feedstuffs are more conducive to producing good pellets than others, e.q. wheat, probably because of its gluten, usually improves pellet quality, whereas, oats is difficult to pellet. The addition of fat may allow for increased quality and yield up to a point, but beyond 4—5% fat causes the pellets to be quite unstable and they break apart easily in handling.

Dried Colostrum For Growing Turkeys, Ali B. Kashani, C. Wendell Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

The importance of fresh whole colostrum for the young animal has long been recognized. Because of its content of antibodies and other possible immune-producing substances, colostrum enhances the young's growth performance and frequently aids in preventing some or much mortality. With the possible unavailability of antibiotics (that have been in use for over 35 years to enhance growth and survivability of turkey poults especially) other substances are being considered for their replacements. As examples, high levels of copper salts (providing upwards of 100 ppm copper) and several probiotics have been evaluated for this purpose. Dried colostrum is perhaps the latest …

South Dakota Poultry Industries Annual Report, C. Wendell Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

During the year 1984-85, operators of 10 hatcheries, 8 chick stores and 2 individual flockowners cooperated under the National Poultry Improvement Plan regulations. In addition, there were commercial hatcheries and colonies that did not participate in the National Plans program. All hatcheries and chick stores were supervised by the South Dakota State Livestock Sanitary Board.

Temperature Effects On The Requirements For Layers, Craig N. Coon, Alfredo Peguri

South Dakota Poultry Field Day Proceedings and Research Reports, 1985

The environmental temperatures in the layer houses in the Midwest may range from 60 F to 90 F because of extreme cold weather in the winter and hot weather in the summer. Research suggests that cold temperatures increase the maintenance energy requirement of layers to increase body temperatures and hot environmental temperatures lower the maintenance energy requirement to enhance the elimination of body heat. Since feed consumption of layers is primarily controlled by their energy requirements the change in temperature drastically effects daily feed consumption. Alterations in feed intake of layers caused by changing temperatures create many problems for layer …

Planning Prices And Livestock Budgets, Burton Pflueger, Arnold Rieckman, John Maher Thaden, Ron, Larry Madsen

SDSU Extension Circulars

This publication provides tables and worksheets for calculating budgets for beef cows and calves, stockers and feeders, feeding calves and yearlings, ewes and lambs, feeding lambs, market hogs, feeder pigs, milk, dairy, laying hens, goose, and turkey production.

Sheep Production Guide, J. M. Thompson, L. F. Bush

SDSU Extension Circulars

This publication provides various management practices to increase the productivity of the ewe flock. It discusses target dates, a timeline for early lambing, production records, lambing difficulties, and artificial rearing of lambs, as well as management of the flock, lambs, and wool.

South Dakota Farm And Home Research (Fall 1985), South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

This issue contains the 98th South Dakota Agricultural Experiment Station Annual Report. This report covers July 1, 1984 - June 30, 1985.

Director’s comments: If you ran our Station budget, how would you spend the money? [p] 2
Spray spurge: Leafy spurge is no hit-and –run enemy; it digs in. Counterattack cannot be hit-and-run either [p] 3
The benefits of variety: For special meats, benefits are economic and nutritional. But you may have to lie a little [p] 5
Crossbreeding: the new look: Mixing genes isn’t all there is to it. You may have to adjust carrying capacity [p] 8 …

Spring Wheat Production, Robert G. Hall

SDSU Extension Circulars

This publication provides information on wheat quality, wheat management considerations such as variety selection, seeding time, rate, and depth, tillage and seedbed preparation, weed and insect control, soil fertility, seed treatment, crop rotation, diseases, and wheat growth stages.

A General Overview Of Risk Theory And Its Application To Agriculture, Burton Pflueger

Economics Staff Paper Series (1969 - 2017)

No abstract provided.

85 Jacks, South Dakota State University

Jackrabbit Football Media Guides (1950-2014)

The 1985 Jackrabbit Football Press Guide was written, edited and published by the Jackrabbit Sports Information service for distribution to media members covering SDSU and North Central conference football.

Agriculture Policy Decisions: A Perspective From South Dakota Farmers And Ranchers, Larry Janssen, Mark Edelman

Economics Research Reports (1969 - 2017)

Federal government policies greatly affect farmers and ranchers. Most South Dakota farmers and ranchers favor changes in the process used to make farm policy decisions but are split on the desirable future direction of farm commodity programs. A majority of producers favor existing or modified loan rate, target price, and farmer owned grain reserve program but are sharply divided on payment-in-kind (PIK) programs. Most producers favor the market growth provided by world trade but are not willing to give up minimum trade barriers, these barriers provide some cushion from the instability caused by international trade system. In addition, farmers are …

Agriculture Policy Decisions: A 1984 Persepctive From South Dakota Farmers And Ranchers, Larry Janssen, Mark Edelman

Economics Research Reports (1969 - 2017)

Federal government policies greatly affect farmers and ranchers. Most South Dakota farmers and ranchers favor changes in the process used to make farm policy decisions but are split on the desirable future direction of farm commodity programs. A majority of producers favor existing or modified loan rate, target price, and farmer owned grain reserve program but are sharply divided on payment-in-kind (PIK) programs. Most producers favor the market growth provided by world trade but are not willing to give up minimum trade barriers, these barriers provide some cushion from the instability caused by international trade system. In addition, farmers are …

Management Choices: Native, Interseeded Native, Or Tame Pastures, F. R. Vigil, R. Shane, S. Fransen, D. Huber

Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011)

The objective of the 3-year grazing study was reported in this bulletin was to develop effective, economical, and sustained beef cattle production on native and tame pastures with and without energy supplementation. The three pasture systems studied were native range, interseeded native range, and a tame pasture series.