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Articles 2911 - 2940 of 3639
Full-Text Articles in Entire DC Network
The Pollution Potential Of Feedlots Along The Main Stem Of The Big Sioux River, John Edward Foley
The Pollution Potential Of Feedlots Along The Main Stem Of The Big Sioux River, John Edward Foley
Electronic Theses and Dissertations
Modern technology is reshaping the world. Advances, accompanied by great changes, are being made in every facet of this nation's and the world's way of life. Every person, place, or object is affected to some degree by these technological advances. An area of endeavor receiving a great amount of benefit from twentieth-century science is agriculture. Farms in the United States have been lifted to levels of production and efficiency undreamed of not very long ago. But, as in the case of most technological advances, unraveling the old problems has brought about a new set of problems which are perhaps even …
Characteristics Of The Rachitogenic Activity In Isolated Soybean Protein, Owen Joscelyn Thompson
Characteristics Of The Rachitogenic Activity In Isolated Soybean Protein, Owen Joscelyn Thompson
Electronic Theses and Dissertations
The characteristics of the rachitogenic activity in isolated soybean protein were investigated. Day-old Broad Breasted White and/or Wrolstad Small White turkey poults were used. Levels of calcium, phosphorus and vitamin D3 were equal to or greater than National Research Council recommendations. Criteria used for evaluation were body weight gains, tibia ash, serum alkaline phosphate, serum inorganic phosphate and serum calcium. Trays containing dry isolated soybean protein spread to a uniform depth of two and one-half centimeters were placed in an autoclave and brought to 100oC by steaming and then 120oC for a designated period of …
South Dakota State University 1968 Summer Session Bulletin, South Dakota State University
South Dakota State University 1968 Summer Session Bulletin, South Dakota State University
South Dakota State University Catalogs and Bulletins: 1935 to present
No abstract provided.
The Influence Of Zinc And Tryptophan On Polysome Stability And Growth Response Of Corn Seedlings, Anthony Unusa Salami
The Influence Of Zinc And Tryptophan On Polysome Stability And Growth Response Of Corn Seedlings, Anthony Unusa Salami
Electronic Theses and Dissertations
Zinc-deficient corn plants were obtained by raising seedlings in nutrient solution without added zinc. In the absence of zinc, retarded growth was evident after 16 days of germination. Interveinal chlorosis of the leaves was observed on plants grown in this nutrient solution without added zinc. Substitution of tryptophan for zinc in the nutrient solution without added zinc. Substitution of tryptophan for zinc in the nutrient solution during the first 19-day growth period, completely corrected the symptom of retarded growth and the other symptoms of zinc deficiency. This optimal growth and tryptophan was accomplished even with a five-fold reduction of tissue …
Southeast South Dakota Experiment Farm Annual Progress Report, 1967, Agricultural Experiment Station
Southeast South Dakota Experiment Farm Annual Progress Report, 1967, Agricultural Experiment Station
Agricultural Experiment Station and Research Farm Annual Reports
This seventh annual report of the research program at the Southeast South Dakota Experiment Farm is presented herewith. The report has special significance for those engaged in agriculture and the agriculturally related businesses in the nine county area of southeast South Dakota, but it will be useful to many outside the area. The results shown are not necessarily complete nor conclusive. Interpretations given are tentative because additional data resulting from continuation of these experiments may result in conclusions different from those based on any one year.
Fish Solubles In Rations For Early Weaned Pigs, L.M. Anderson, R.W. Seerley, R.C. Wahlstrom
Fish Solubles In Rations For Early Weaned Pigs, L.M. Anderson, R.W. Seerley, R.C. Wahlstrom
South Dakota Swine Field Day Proceedings and Research Reports, 1967
This experiment was a continuation of a project covering several aspects of the nutrition of young pigs. The results of previous work reported at the 1966 Swine Field Day ( A.S. Series 66-21) showed that a simple corn-soybean meal fortified ration was equal to a more complex diet that also contained rolled oats, dried skim milk and sugar. Therefore, the current experiment was designed to compare a basal corn-soybean meal type ration with a similar ration containing 3% fish solubles. Fish solubles are a good source of high quality protein and also may contain an identified growth factor(s). The experiment …
Influence Of The Boar On Litter Size, D.R. Shelby
Influence Of The Boar On Litter Size, D.R. Shelby
South Dakota Swine Field Day Proceedings and Research Reports, 1967
Although the role of the boar in achieving a high conception rate among sows in a herd has long been recognized, the sow has gene rally been considered to be solely responsible for litter size. Litter size is determined by (l) the number of eggs ovulated, (2) the quality of eggs ovulated as evidenced by the ability of the eggs to be fertilized and develop into normal embryos, (3) the ability of the uterus to provide the proper environment for implantation and the development of normal embryos during pregnancy and (4) the number and quality of sperm received by the …
A Comparsion Of Three Methods Of Iron Administration In Preventing Baby Pig Anemia, R.D. Magstadt, R.W. Seerley, R.C. Wahlstrom
A Comparsion Of Three Methods Of Iron Administration In Preventing Baby Pig Anemia, R.D. Magstadt, R.W. Seerley, R.C. Wahlstrom
South Dakota Swine Field Day Proceedings and Research Reports, 1967
Baby pig anemia is a serious nutritional disease. It is primarily due to a lack of iron in the diet of the young pig. Pigs are born with very little stores of iron in their bodies. Also, sow' s milk does not contain enough iron to meet the pig' s requirements. Therefore young pigs which subsist on milk alone commonly become anemic at about three weeks of age. The fastest growing pigs are the first to show symptoms because they require more of this essential nutrient. Symptoms of anemia are: (1) respiratory difficulties shown by thumping of sides1 (2) paleness …
Eleventh Annual Swine Field Day 1967 Complete Report, Department Of Animal Science
Eleventh Annual Swine Field Day 1967 Complete Report, Department Of Animal Science
South Dakota Swine Field Day Proceedings and Research Reports, 1967
This is complete proceedings of the tenth annual South Dakota Swine Field Day held on November 14, 1967 at South Dakota State College.
Sdsu Collegian, November 1(8), 1967, Student Association Of South Dakota State University
Sdsu Collegian, November 1(8), 1967, Student Association Of South Dakota State University
The Collegian Archive : 1960 to 1969
Vol. 76, No. 7
Fertilizing Pasture And Hayland, Earl P. Adams, Edward J. Williamson
Fertilizing Pasture And Hayland, Earl P. Adams, Edward J. Williamson
SDSU Extension Fact Sheets
This publication provides guidance on fertilizer rates at seeding time and fertilizing established stands for legumes, grasses, and grass-legume mixtures. Fertilizing irrigated forage is also discussed.
Extension International: People And Food, Cooperative Extension Service
Extension International: People And Food, Cooperative Extension Service
SDSU Extension Special Series
Contents
Food Is Losing the Race
The Need for Technical Assistance
Women
Youth
Extension Is "Exportable
Extension's International Commitment
Goals and Priorities
Training and Staffing
How Extension Operates in the United States
South Dakota Farm And Home Research: 80th Annual Report To South Dakotans (Fall 1967), Agricultural Experiment Station, South Dakota State University
South Dakota Farm And Home Research: 80th Annual Report To South Dakotans (Fall 1967), Agricultural Experiment Station, South Dakota State University
South Dakota Farm and Home Research: 1949 -1998
Contents
Looking to the Future [p] 2
Agricultural engineering [p] 4
Agronomy [p] 8
Animal Science [p] 14
Bacteriology [p] 16
Botany [p] 18
Dairy Science [p] 20
Economics [p] 23
Entomology-Zoology [p] 25
Home Economics [p] 28
Horticulture-Forestry [p] 30
Plant Pathology [p] 32
Poultry Science [p] 34
Rural Sociology [p] 36
Station Biochemistry [p] 39
Veterinary Science [p] 40
Wildlife Management [p] 41
Substation Activities [p] 45
Staff Publications, Article [p] 46
Agricultural Advisory Groups [p] 53
Staff [p] 54
Financial Statement [p] 55
Speaking of Research and Future [p] 59
Figuring Feeds For Swine, Cooperative Extension South Dakota State University
Figuring Feeds For Swine, Cooperative Extension South Dakota State University
SDSU Extension Fact Sheets
The progressive swine grower wants optimum performance from his animals. Adequate amounts of nutritionally balanced rations are necessary for this performance. A balanced ration, strictly speaking, is a combination of feeds furnishing the various nutrients in such proportions, amounts, and form that will, without waste, properly nourish a given animal or group of animals for a particular purpose.
Feeding Brood Sows, Cooperative Extension South Dakota State University
Feeding Brood Sows, Cooperative Extension South Dakota State University
SDSU Extension Fact Sheets
Pregestation, gestation, and lactation are critical periods in swine nutrition. Work at many experiment stations has shown that sows will produce larger litters if their energy intake is limited during gestation than if they are allowed access to a self feeder. In the gestation period weight gains must be controlled, because over-fatness often decreases litter size besides increasing feed costs. In the nursing period, plentiful milk production requires liberal feeding, however, there is evidence that milk production is to some extent related to the number of nursing pigs and it would appear reasonable to feed the lactating sow on a …
South Dakota State University Agricultural Experiment Station Cooperative Extension Service : A Special Report To The South Dakota Legislative Research Council For Fiscal Years 1962 Through 1966, South Dakota State University Cooperative Extension
South Dakota State University Agricultural Experiment Station Cooperative Extension Service : A Special Report To The South Dakota Legislative Research Council For Fiscal Years 1962 Through 1966, South Dakota State University Cooperative Extension
SDSU Extension Special Reports
This document is a special report on the South Dakota Agricultural Experiment Station and cooperative Extension Service prepared for the State Legislative Research Council. The report covers appropriations and expenditures for FY1962 through FY1966 and current summaries and estimates for FY1967 and FY1968. Certain programs and activities are summarized briefly.
Yield Components Of Spring Oats As Affected By Seeding Rate And Fertility Level, Robert Yung-Yen Yeh
Yield Components Of Spring Oats As Affected By Seeding Rate And Fertility Level, Robert Yung-Yen Yeh
Electronic Theses and Dissertations
Experiments with oats have shown approximately equal yields from a wide range of seeding rates. Also, oats usually respond to an adequate supply of plant food elements. Yield is a product. As Grafius (12) pointed out, the yield of oats may be represented geometrically as the volume of a rectangular parallelepiped with edges X1= number of panicles per unit area, X2= average number of seeds per panicle, and X3= average weight per seed. Multiplied together X1X2X3 equals Y, yield. All changes in the yield components need not be expressed as changes in yield, but all changes in yield must be …
Supplemental Vitamins In The Drinking Water For Early Weaned Pigs And Growing Rats, Marvin Eugene Wastell
Supplemental Vitamins In The Drinking Water For Early Weaned Pigs And Growing Rats, Marvin Eugene Wastell
Electronic Theses and Dissertations
Vitamins are defined as organic compounds required in small amounts to perform many essential functions in the animal body. All vitamins have different structures and perform different functions. Experimental research has shown that it is very important to supply adequate amounts of vitamins to insure normal growth and body maintenance of animals. Swine producers use completely mixed diets or the free choice feeding of corn and supplement, which includes proteins, minerals, vitamins and additives, as methods of supplying supplemental vitamins for pigs. These two methods have been accepted by modern swine producers as good feeding programs because they have supported …
1967 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
1967 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
Little International "Little I" Agricultural Exposition Catalogs
No abstract provided.
The Effect Of An Interval Running Program On Circulorespiratory Efficiency, Body Adipose Tissue, And Body Weight Of College Freshman Women, Nona Marie Stamp
The Effect Of An Interval Running Program On Circulorespiratory Efficiency, Body Adipose Tissue, And Body Weight Of College Freshman Women, Nona Marie Stamp
Electronic Theses and Dissertations
The purpose of this investigation was to determine the effects of an interval running program on circulorespiratory efficiency, body adipose tissue, and body weight of college freshman women. Thirty students were selected randomly from volunteers from all of the freshmen women enrolled in the required freshman physical education program at South Dakota State University, equated by an oxygen consumption test, and placed in an experimental or control group. The experimental group participated in an interval running program over a six-week period. The workload consisted of running bouts on a graded treadmill with at specific interval rest period. The bouts increased …
Sdsu Collegian, March 1, 1967, Student Association Of South Dakota State University
Sdsu Collegian, March 1, 1967, Student Association Of South Dakota State University
The Collegian Archive : 1960 to 1969
Vol. 75, No. 19
Feedlot Performance Of Hereford And Holstein Steers As Affected By Ration And Slaughter Weight, William M. Larson
Feedlot Performance Of Hereford And Holstein Steers As Affected By Ration And Slaughter Weight, William M. Larson
Electronic Theses and Dissertations
In 1918 the Bureau of Markets, now the Bureau of Agriculture Economics, of the United States Department of Agriculture inaugurated its market reporting service on livestock in Chicago. At that time a uniform standard was set up for market classes and grades of cattle. The use of these uniform descriptions for all classes and grades of cattle throughout the country by researchers, producers, selling and buying agencies and packers has contributed a great deal to the orderly marketing of cattle and to the reporting and exchange of research information. The grade of a particular animal is determined by the apparent …
Nitrate--Urea Interrelationships In Sheep, Donald Wayne Hoar
Nitrate--Urea Interrelationships In Sheep, Donald Wayne Hoar
Electronic Theses and Dissertations
Nitrates are absorbed from the soil by plants and serve as a source of nitrogen which is converted into protein and other nitrogen containing compounds. Plants usually contain relatively small amounts of nitrate because it is converted into other nitrogenous compounds rapidly after being absorbed. Under certain conditions some plants may accumulate fairly high concentrations of nitrate. While these high concentrations are not toxic to the plant, animals consuming them may sometimes show symptoms of nitrate toxicity. Nitrate is not very toxic, but it is readily converted into nitrite which causes toxicity. Nitrate is not very toxic, but it is …
Supplemental Vitamins In Feed And Water For Growing And Finishing Pigs And Growing Rats, Vernon L. Fritz
Supplemental Vitamins In Feed And Water For Growing And Finishing Pigs And Growing Rats, Vernon L. Fritz
Electronic Theses and Dissertations
Vitamins in swine diets have become more important in recent years as swine producers have changed to the confinement method of rearing pigs. When confined, swine are more likely to suffer from nutritional deficiencies, especially a deficiency of vitamins. However, with greater knowledge of nutrition and establishment of vitamin requirements, swine producers are now able to include the essential nutrients (carbohydrates, fats, proteins, minerals and vitamins) and feed additives in a completely mixed diet. This method of feeding swine has been widely accepted since completely mixed diets support excellent gains and feed utilization; however this method of feeding is not …
The Relationship Of Live And Carcass Measurements To Carcass Meatiness And The Influence Of Sex And Sire On Carcass Traits In Lambs, Robert E. Fritz
The Relationship Of Live And Carcass Measurements To Carcass Meatiness And The Influence Of Sex And Sire On Carcass Traits In Lambs, Robert E. Fritz
Electronic Theses and Dissertations
The changing demands of the consumer have caused quite an influence on our breeding, feeding and management programs. The consumer is better educated and spends more time selecting which cut or cuts of meat to buy. The desire of the consumer to purchase leaner cuts and cuts with more eye appeal has influenced producers to select parent stock with more desirable meat qualities, and animal scientists to strive to find measures which producers could use in their selection programs in order to produce more red meat and less fat. The popularity of other meats has increased and the per capita …
Barley Rations For Finishing Beef Cattle, L. B. Embry, A. E. Dittman, F. W. Whetzal, R. D. Goodrich
Barley Rations For Finishing Beef Cattle, L. B. Embry, A. E. Dittman, F. W. Whetzal, R. D. Goodrich
Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011)
A series of experiments was conducted to provide answers to these questions. Various studies made in the experiments were as follows:
1. Value of additions of hay and molasses
2. Value of various levels of hay
3. Need for a protein supplement
4 . Value of antibiotics
5. Value in comparison to corn-alfalfa rations, with and without dynafac.
The Effect Of Range Site And Range Condition On The Growth And Development Of Western Wheatgrass, Myron Eugene Enevoldsen
The Effect Of Range Site And Range Condition On The Growth And Development Of Western Wheatgrass, Myron Eugene Enevoldsen
Electronic Theses and Dissertations
One of the problems confronting the range administrator or ranch manager in making sound grazing management decisions is lack of detailed knowledge about the growth and development of herbage grasses. It is important to know how the desirable grass species in a particular area will respond to the time and frequency of harvesting in order to formulate a grazing management plan that will permit maximum sustained livestock production while maintaining or improving the species composition and the vigor of the important forage plants. Taller and more palatable grasses are replaced by shorter grasses as grazing intensity is increased; thus, foliage …
Effects Of Supplemental Lysine And Methionine In Finishing Swine Diets, Bruce A. Eason
Effects Of Supplemental Lysine And Methionine In Finishing Swine Diets, Bruce A. Eason
Electronic Theses and Dissertations
Considerable research has been conducted in the last few years to evaluate protein and amino acid levels in the various growth phases of porcine animals. Most of this research has been limited to the baby and growing phase of the pig, whereas little research has been conducted with the finishing phase of the pig. Lysine and methionine, essential amino acids in the diet of monogastric animals, have been studied extensively in animal nutrition. The following experiments were designed to gain some insight into the effects of supplementing two crystalline amino acids, lysine and methionine, to a corn-soybean meal-tankage diet for …
Effect Of Thiamine, Riboflavin, Pantothenic Acid, And Niacin In Bovine Blood On The Economy Of The Short-Nosed Cattle Louse Haematopinus Eurysternus (Nitzsch), John Roger Crouch
Effect Of Thiamine, Riboflavin, Pantothenic Acid, And Niacin In Bovine Blood On The Economy Of The Short-Nosed Cattle Louse Haematopinus Eurysternus (Nitzsch), John Roger Crouch
Electronic Theses and Dissertations
A livestock producer will usually experience a louse infestation among his cattle sometime during his career. Most of the cattle that become louse-infested are easily ridded of their lice. There may be, however, one animal in a herd which is particularly susceptible to the lice and becomes chronically infested. Sometimes the susceptible animal may become so heavily infested with lice that death occurs. Scharff (1962) stated that the death loss resulting from very heavy infestations of the short-nosed cattle louse, Hematopinus eurysternus (Nitzsch) was probably about one percent. The louse involve in the experiment was the short-nosed cattle louse, Hematopinus …
The Response Of Poults To Growth And Antirachitic Factors Of Soybean Meal And Corn, Richard Lane Arnold
The Response Of Poults To Growth And Antirachitic Factors Of Soybean Meal And Corn, Richard Lane Arnold
Electronic Theses and Dissertations
Soybean by-products have been used for animal feed protein extensively in the past years. Soybean meal has become a major source for poultry diets. Being a plant source of protein soybeans potentially could provide protein for animals in almost unlimited quantities. However, there are certain problems encountered in the feeding of soybean products to poultry. The research for this paper deals with the use of soybean the use of soybean protein in the diets of turkey poults. Isolated soy protein which is commonly used for purified diet studies contains factor(s) which cause reduced growth and a rachitic-like conditions of turkey …