Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1383)
- Animal Sciences (707)
- Agriculture (336)
- Medicine and Health Sciences (234)
- Plant Sciences (232)
-
- Dairy Science (188)
- Social and Behavioral Sciences (158)
- Nutrition (147)
- Food Science (144)
- Physical Sciences and Mathematics (137)
- Agronomy and Crop Sciences (101)
- Beef Science (93)
- Environmental Sciences (80)
- Agricultural Economics (69)
- Microbiology (65)
- Veterinary Medicine (65)
- Human and Clinical Nutrition (61)
- Engineering (60)
- Biology (56)
- Natural Resources and Conservation (49)
- Ecology and Evolutionary Biology (48)
- Economics (48)
- Agricultural and Resource Economics (46)
- Public Health (40)
- Education (38)
- Sports Sciences (33)
- Kinesiology (31)
- Sociology (30)
- Agricultural Science (29)
- Natural Resources Management and Policy (27)
- Keyword
-
- Nutrition (78)
- Home economics department (55)
- Dairy plant (48)
- Dairy processing (48)
- Dairy science (48)
-
- Health (44)
- Diet (42)
- Food science (37)
- Cattle (31)
- Humans (31)
- Female (21)
- Obesity (20)
- Male (19)
- Economics (18)
- Livestock (18)
- Management (18)
- Food (17)
- Beef (16)
- South Dakota (15)
- Swine (15)
- Corn (14)
- Adolescent (13)
- Adult (13)
- Range (13)
- Breeding (12)
- Meats (12)
- Physical activity (12)
- Reproduction (12)
- Dairy (11)
- Growth performance (11)
- Publication
-
- Electronic Theses and Dissertations (1036)
- SDSU Extension Circulars (142)
- SDSU Extension Fact Sheets (136)
- Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011) (122)
- South Dakota State University Catalogs and Bulletins: 1935 to present (122)
-
- Commencement Programs (105)
- South Dakota Farm and Home Research: 1949 -1998 (104)
- SDSU Extension Extra Archives (97)
- Health and Nutritional Sciences Faculty Publications (69)
- Agricultural Experiment Station and Research Farm Annual Reports (61)
- The Collegian Archive : 1970 to 1979 (57)
- Little International "Little I" Agricultural Exposition Catalogs (54)
- The Collegian Archive : 1950 to 1959 (54)
- The Collegian Archive : 1960 to 1969 (43)
- Natural Resource Management Faculty Publications (42)
- Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences) (41)
- Agronomy, Horticulture and Plant Science Faculty Publications (40)
- Dairy Digest (39)
- The Collegian Archive : 1980 to 1989 (37)
- Animal Science Newsletters (36)
- Dairy Science and Food Science Faculty Publications: 2022 to Present (35)
- Agricultural Experiment Station Circulars (1920-1915) (29)
- SDSU Beef Day 2020 Summary Publication (29)
- Ethel Austin Martin Program Publications (25)
- Proceedings of the South Dakota Academy of Science (25)
- Farm and Home Research: 1999 - 2007 (23)
- Health and Nutritional Sciences Graduate Students Plan B Capstone Projects (23)
- Economics Commentator (1972- 2016) (22)
- Dairy and Food Science Student Newsletter (21)
- The Journal of Undergraduate Research (21)
- Publication Type
- File Type
Articles 2401 - 2430 of 3639
Full-Text Articles in Entire DC Network
Cool-Season Grasses For May And June, Cooperative Extension South Dakota State University
Cool-Season Grasses For May And June, Cooperative Extension South Dakota State University
SDSU Extension Fact Sheets
Several species of tame grass and several natives are most productive during late May and June. They usually become somewhat dormant during July and August but resume growth again in September.
Effect Of Nutrition On Reproductive Performance, Gerry Kuhl
Effect Of Nutrition On Reproductive Performance, Gerry Kuhl
South Dakota Cow-Calf Field Day Proceedings, 1978
Reproductive performance is the name of the game to the cow-calf producer. The brood cow exists for one purpose -- to consistently produce strong, vigorous calves with heavy weaning weights. In order for the producer to improve the reproductive efficiency of his cow herd, he must critically evaluate his operat ion, establish a set of realistic goals, and thoroughly understand the major factors influencing their achievement. In general, the aim of an efficient cow-calf operation should be to produce calves weighing 450-500 pounds at weaning from 95% of the cows every 12 months. The key to achieving these goals is …
Numbers, Condition And Economics In Range Management, James R. Johnson
Numbers, Condition And Economics In Range Management, James R. Johnson
South Dakota Cow-Calf Field Day Proceedings, 1978
Recently I participated in Montana's Ag Lender's Range School in Miles City. It was, in my judgment, a good session. We had the opportunity to view range research that demonstrated long-term differences in livestock performance where variable stocking rates and utilization had been practiced. In total, the "best" systems were those that were conservative and consistent with Soil Conservation Service and Montana State University guidelines.
Partial Purification Of Heat Stable Enterotoxin Produced By Escherichia Coli Isolated From A Case Of Porcine Colibacillosis, Lee Ann Zochert Swanson
Partial Purification Of Heat Stable Enterotoxin Produced By Escherichia Coli Isolated From A Case Of Porcine Colibacillosis, Lee Ann Zochert Swanson
Electronic Theses and Dissertations
Colibacillosis (CB) in livestock is an economically important disease caused by the bacterium Escherichia coli. It is estimated that nearly one third of all baby pigs born in South Dakota die prior to weaning, and one fourth of these deaths is believed to be caused by CB (62). Similarly, it has been stated that 6 to 20% of calves born alive die from this disease (3). The term colibacillosis encompasses a group of diseases caused by E. coli in neonatal and weaned animals and humans (3). The several different types of CB are due to the differences in tissue localization …
South Dakota Farm And Home Research, South Dakota State University
South Dakota Farm And Home Research, South Dakota State University
South Dakota Farm and Home Research: 1949 -1998
State’s Dairy Industry: Bright Future [p] 3
Fermented Colostrum [p] 5
Cafeteria Choice [p] 7
Miniaturized Junipers [p] 9
Dicamba Drift [p] 12
Shrubs for Modern Landscaping [p] 14
Low-cost Protein [p] 17
A Check on Antibiotics [p] 18
Feeding Value Of Brown-Midrib Corn Silage For Lactating Dairy Cows, Joel Leigh Sommerfeldt
Feeding Value Of Brown-Midrib Corn Silage For Lactating Dairy Cows, Joel Leigh Sommerfeldt
Electronic Theses and Dissertations
A 14 wk lactation trial was conducted to evaluate the feeding value of brown-midrib (bm3) corn silage and its normal (N) genetic counterpart using ten Holstein cows per group averaging 6 wk post-partum at the start of the experiment. The cow were fed corn silage (bm3 or N) ad libitum, 2.25 kg alfalfa hay/hd and grain (1 kg/3 kg milk produced) dairy. The bm3 and N, respectively. Milk production for cows fed bm3 and N was 25.0 and 25.5 kg/day. Fat corrected milk and solids corrected milk were similar for both groups. A total collection …
Reasons Why Cows Were Removed From The Sdsu Fairy Herd 1. Discriminant Analysis To Classify Cows With Or Without Reproductive Problems, Fred Tidemann
Reasons Why Cows Were Removed From The Sdsu Fairy Herd 1. Discriminant Analysis To Classify Cows With Or Without Reproductive Problems, Fred Tidemann
Electronic Theses and Dissertations
One of the keys to financial success in the dairy business is the ability of management to detect herd problems and correct them instead of culling cows. It is well known that the average productive life of the dairy cow is less than 4 yr, which is short compared with her potential life. Involuntary removal of cows causes economic loss directly as a result of its effect on yearly milk production, increased replacement cost, and indirectly because the potential selection differential is reduced with premature loss of high producing cows. The degree of culling is related to important economic considerations …
An Evaluation Of High Protein Oat Forage For Dairy Cattle, Thomas Lee Schroeder
An Evaluation Of High Protein Oat Forage For Dairy Cattle, Thomas Lee Schroeder
Electronic Theses and Dissertations
As world population climbs toward the 6 billion mark predicted for the turn of the century, it becomes of grave importance that we meet the challenge of human food production. In developed nations, urban sprawl is devouring land once used for agricultural purposes, while in underdeveloped nations, malnutrition is commonplace. The technology of the 21st century will need to develop new methods and means whereby grains can be increasingly used to provide the nutritional needs of humans. Therefore, animal scientists must work toward even more efficient utilization of roughages by ruminant animals. Efficient conversion of roughages to high quality human …
An Evaluation Of Protein Quality Of Kitt, Era And Rall Wheats By The Protein Efficiency Ratio Method, Lorna Jost
An Evaluation Of Protein Quality Of Kitt, Era And Rall Wheats By The Protein Efficiency Ratio Method, Lorna Jost
Electronic Theses and Dissertations
Studies were conducted to evaluate the nutritive value of three wheat cultivars produced at South Dakota State University. The three wheats were Kitt, Era and Rall. Crude protein analysis by the Kjeldahl method, amino acid content and a biological assay were conducted on all three wheat flours. Kjeldahl analysis yielded the following percentage proteins for Kitt, Era and Rall respectively; 18.1, 13.7, and 11.9. Lysine was the first limiting amino acid for rats in all three cultivars under investigation. Diets consisting of four protein levels of each wheat flour, four protein levels of casein control diet and one protein level …
Listeria Monocytogenes In The Environment Of Livestock In South Dakota, James W. Neiles
Listeria Monocytogenes In The Environment Of Livestock In South Dakota, James W. Neiles
Electronic Theses and Dissertations
The purpose of this investigation is to study the incidence of Listeria monocytogenes in the environment of livestock in South Dakota. The data accumulated from these studies will provide information as to its natural habitat, mode of transmission and factors responsible for its incidence.
The Effect Of Foliar Fertilization On Soybean Yield And Leaf Necrosis, Robert Jay Goos
The Effect Of Foliar Fertilization On Soybean Yield And Leaf Necrosis, Robert Jay Goos
Electronic Theses and Dissertations
The soybean (Glycine max (L.) Merrill) is a very important world crop. The seed is rich in both protein and oil, making it a valuable human food resource. Many scientists believe that there are physiological barriers preventing increased soybean yields. Any agronomic discovery that would consistently increase soybean yields would be important to world food production. One possible yield barrier in soybeans concerns the mineral nutrition of the plant during the seed-filling stages of growth. During this period of growth, translocation of N, P, K, and S from the plant foliage to the developing seed occurs, accompanied by a virtual …
Monensin, Protein Supplementation And Tylosin For Feedlot Cattle, Roger N. Gates
Monensin, Protein Supplementation And Tylosin For Feedlot Cattle, Roger N. Gates
Electronic Theses and Dissertations
Scientific research has made substantial contributions to the efficiency of American agriculture. Livestock producers in particular have benefited from the extensive study of animal nutrition. Nutrient requirements of animals and the nutrient composition of feeds are essential to efficient and economical feeding of farm animals. Research over many years has provided considerable information on animal requirements and feed composition. While there are still many gaps of knowledge in those areas, available information allows wise choice in selecting feedstuffs and using them in various combinations to meet animal requirements for various productive purposes. Feed costs represent the single largest expenditure in …
Pregnancy Diagnosis In The Ewe, Michael J. Trapp
Pregnancy Diagnosis In The Ewe, Michael J. Trapp
Electronic Theses and Dissertations
The ability to diagnose pregnancy accurately, rapidly and economically before the last six weeks of gestation in the ewe could be of real value as a sheep management tool. An efficient non-surgical pregnancy test could enable the producer to reduce feed costs, increase percent lamb crop and select for fertility. It is important to the health of the ewe and to the survival of the lamb that highly productive animals should be adequately fed. About 75% of the fetus' growth occurs during the last trimester of pregnancy. Therefore undernutrition of the ewe during this part of pregnancy leads to the …
Effect Of Heat Treatment On Protein Quality And Utilization Of Soybean And Sunflower Meals By Dairy Cattle, Mohammad Ahrar
Effect Of Heat Treatment On Protein Quality And Utilization Of Soybean And Sunflower Meals By Dairy Cattle, Mohammad Ahrar
Electronic Theses and Dissertations
Effect of heat treatment on soybean and sunflower meal proteins were studied using in vitro and in vivo techniques. In experiment I, soybean meal (SBM) and sunflower meal (SFM) were subjected to steam heating about 120 C for 25 to 30 seconds using a commercial cooker extruder. The heat treatment was designed to reduce solubility of the SBM and SFM in the rumen, thereby allowing more soybean meal protein and sunflower meal protein to be undigestible in the rumen but still digestible in the lower digestive tract when fed to cattle. Solubilities of protein in SBM and SFM were reduced …
Plant Availability Of Aqueous Phosphates Removed By Fly Ash, Paul D. Weeldreyer
Plant Availability Of Aqueous Phosphates Removed By Fly Ash, Paul D. Weeldreyer
Electronic Theses and Dissertations
Recycling non-renewable resources has become increasingly. important as man has continuously expected more and more from his environment. As stated by Spendlove (1976): "Recycling certainly is not new. It appears, in fact, to be one of the most obvious laws of nature, much like the seasons, the tides, and the life and death processes. It is not surprising, therefore, that the greatest motivating force behind present recycling efforts is the worldwide concern for the deteriorating natural environment." This ever-increasing demand for more production has created the need for more stringent pollution controls to maintain an acceptable quality of life. Pollution …
Utilization Of Whole Aspen Tree Material As A Ruminant Feed Component, Mahendra Singh
Utilization Of Whole Aspen Tree Material As A Ruminant Feed Component, Mahendra Singh
Electronic Theses and Dissertations
A series of three separate experiments were conducted to determine the value of aspen tree (Populus tremuloides Michx.) as a ruminant feed component in growing, finishing and wintering rations. The entire tree, including the branches, leaves and bark, was fed to Hereford steers and commercial bred stock cows. In experiment 1, sixty steers were randomly allotted to six treatments of ten each. The six treatment rations were: 93% alfalfa as control, 12% aspen, 24% aspen, 36% aspen, 48% aspen and 48% aspen (with 4% sodium hydroxide). Soybean meal was included in aspen rations in a ratio of 40% soybean meal …
Diet And Nutrition Of The Pronghorn Antelope, Norman C. Messenger
Diet And Nutrition Of The Pronghorn Antelope, Norman C. Messenger
Electronic Theses and Dissertations
Pronghorn antelope (Antilocapra americana) in northwestern South Dakota consumed at least 32 different plants species. Major forage plants were big sagebrush (Artemisia tridentate), silver sage (A. cana), yellow sweet clover (Meliotus officinalis), gold aster (Chrysopsis villosa), and blue grama (Bouteloua gracilis). Cultivated small grain crops were not a major food source of pronghorn. Differences in diet composition, plant groups, plant groups and time of use and plant group, area, month interaction were significant. Average in vitro digestion of 31 food plants was 51 percent. Mean digestion of grasses was 57 percent, forbs 42 percent, and shrubs 55 percent. Yearling male …
Fungal Control Methods, Diets And Water Temperatures Used To Culture Paddlefish, Polydon Spathula, Ronald L. Brandt
Fungal Control Methods, Diets And Water Temperatures Used To Culture Paddlefish, Polydon Spathula, Ronald L. Brandt
Electronic Theses and Dissertations
Studies were conducted at Gavins Point National Fish Hatchery, South Dakota, in 1976 and 1977, to evaluate the effects of diet and water temperature on growth and survival of paddlefish, Polyodon spathula, young, and the effects that fungicides have on hatching success and fry survival. The W-7 cool water diet was fed hourly and three times daily while the Liv commercial diet was fed hourly to paddlefish young for 40 days after swim-up. Average survival rate and total length of paddlefish fed W-7 hourly were 16.0% and 30 mm, those fed W-7 three times daily were 10.0% and 23 mm, …
The Effects Of Added Dry Whey On Yield And Acceptability Of Cheddar Cheese, James M. Wingfield
The Effects Of Added Dry Whey On Yield And Acceptability Of Cheddar Cheese, James M. Wingfield
Electronic Theses and Dissertations
Cheese production and sales are a major part of the U.S. dairy industry. Total hard cheese sales have increased 60% in the past 10 yr. Per capita consumption of cheese for the same period has risen from 2.81 kilograms (kg) to 4.03 kg for a 43% increase. In response to greater consumer demand the amount of milk utilized in cheese production has increased markedly during the past quarter century rising from the low of 10% of annual milk production in 1950 to 24% in 1976. This recent increase in cheese production emphasizes the importance of achieving maximum yields of cheese …
Effects Of Strain On Response Of Laying Hens To Low Protein Diets And Amino Acid Supplements, Ali B. Kashani
Effects Of Strain On Response Of Laying Hens To Low Protein Diets And Amino Acid Supplements, Ali B. Kashani
Electronic Theses and Dissertations
Corn is by far the most widely used cereal grain in the United States for poultry feeding. In addition to its high energy content, corn provides adequate amounts of the essential fatty acids for maximum rates of growth and egg production. Palatability and ample xanthophyll and provitamin A contents of fresh corn are some o the other contributing factors for its popularity in livestock feeding. The most serious limitation in the nutritional value of corn as well as other cereal grains lies in the fact that they are low in both quantity and quality of protein. It has been a …
Nutritional Adequacy Of The Diets Of Pregnant Cheyenne River Sioux, Kathy M. Dirks
Nutritional Adequacy Of The Diets Of Pregnant Cheyenne River Sioux, Kathy M. Dirks
Electronic Theses and Dissertations
A nutrition survey was conducted in which the diets of 79 pregnant Sioux Indian women living on the Cheyenne River Reservation in South Dakota were evaluated. A 24-hour recall was used and background information was collected by the researcher at Public Health Service prenatal clinics. The dietary intakes were evaluated according to Recommended Dietary Allowances (RDA). Diets were considered to be good if they provided all nutrients (protein, calcium, iron, vitamin A, thiamin, riboflavin, niacin, and ascorbic acid) and energy at or above recommended levels, and poor if they provided one or more nutrients below two-thirds the RDA. In accordance …
Dietary Intake And Influence Of Nutrition Education For Selected Elderly In The Congregate Meals Program, Grace E. Anderson
Dietary Intake And Influence Of Nutrition Education For Selected Elderly In The Congregate Meals Program, Grace E. Anderson
Electronic Theses and Dissertations
Nationally, the elderly know fewer facts about nutrition as compared to younger people (41). Senior citizens have relatively poor diets and many are at nutritional risk. The Congregate Meals Program (CMP) provides one low-cost meal a day, five days a week for participants over 60 years of age and their spouses. The meal is to provide one-third of the RDA for the elderly. Based on these generalities, the questions investigated in three eastern South Dakota nutrition sites, with this research are: 1) What is the contribution of the CMP in the total dietary pattern of participants as recorded on a …
Deterioration Of Eggshell Quality And Calcium Metabolism In Laying Hens, Chang Won Kang
Deterioration Of Eggshell Quality And Calcium Metabolism In Laying Hens, Chang Won Kang
Electronic Theses and Dissertations
The present study was undertaken to: (1) develop a reliable method of measuring eggshell quality, (2) determine whether diet alterations that cause a somewhat reduced rate of egg production could influence shell quality, and (3) determine whether certain biochemical parameters involved in calcium metabolism are related to shell quality.
Fatty Liver-Hemorrhagic Syndrome (Flhs) In Caged Laying Hens, Richard A. Nelson
Fatty Liver-Hemorrhagic Syndrome (Flhs) In Caged Laying Hens, Richard A. Nelson
Electronic Theses and Dissertations
A series of eleven experiments was conducted with caged laying hens to study the effects of diet and strain on production and fat accumulation in the liver. In Experiments 1 to 4, a normal ad libitum feeding regime was used, while in Experiments 5 to 11, a force-feeding technique was used as a procedure to increase the incidence of FLHS. Four commercial hybrid strains and a straightbred SCWL (Regional Control) strain were utilized in this study. Choline supplementation at 1500 mg/kg of diet increased egg production from 1 to 11% while decreasing total liver lipid as much as 50%. Supplementation …
Alternative Pasture And Forage Systems, Lyle A. Derscheld, Wallace G. Aanderud
Alternative Pasture And Forage Systems, Lyle A. Derscheld, Wallace G. Aanderud
SDSU Extension Circulars
The livestock producer must use the most economical system for raising cattle or sheep if he is to stay in business. This publication discusses some of the pasture and forage alternatives for use between mid-April and November.
A Comparison Between Crossbred And Straightbred Production Of Targhee Range Ewes, James M. Pajl
A Comparison Between Crossbred And Straightbred Production Of Targhee Range Ewes, James M. Pajl
Electronic Theses and Dissertations
This investigation was initiated. to determine the effect of crossbred vs. straightbred production under the environmental conditions found at the Antelope Range Research Station, Buffalo, South Dakota.
South Dakota State University Graduation Exercises, December 17, 1977, Brookings, South Dakota, South Dakota State University
South Dakota State University Graduation Exercises, December 17, 1977, Brookings, South Dakota, South Dakota State University
Commencement Programs
Please be advised that the individuals listed in the program do not officially confirm meeting the graduation requirements. Honorary marshals for the Fall 1977 Graduation Exercises are Zora R. Colburn, Professor Emeritus of Nutrition and Food Science, and Lillian Lund, Professor Emeritus of Textiles and Clothing. Oregon State University President Robert W. Mac Vicar will deliver the address titled, "In Search of a New Puritanism." President Sherwood O. Berg will confer degrees and present diplomas. Lt. Col. Patrick Hosman and Col. Kendall O. Iverson will recognize Army and Air Force officer commissions.
Alternative Pasture And Forage Systems, Lyle A. Derscheid, Wallace Aanderud
Alternative Pasture And Forage Systems, Lyle A. Derscheid, Wallace Aanderud
SDSU Extension Circulars
This publication discusses some of the pasture and forage alternatives for use between mid-April and November. It provides information on forage species, grass mixtures, grass-legume mixtures, grazing systems, and forages for five 30-45 day periods. Tables and instructions to estimate costs and acreage requirements for forage production are also included.
South Dakota Feed Grains Used For Swine Feeds, L. J. Kortan
South Dakota Feed Grains Used For Swine Feeds, L. J. Kortan
South Dakota Swine Field Day Proceedings and Research Reports, 1977
The value of a feedstuff is based on several factors; acceptability (how well the material will be consumed by an animal), energy availability and as a source of other nutrients (proteins, vitamins and minerals). Should a swine producer feed corn or wheat or barley or oats and others as a grain ingredient? In South Dakota, this will depend primarily upon availability, cost of these ingredients and their value as a souce of energy for swine.
Causes Of Mortality In Poultry Submitted To The Animal Disease Research And Diagnostic Laboratory, July 1976-June 1977, Martin E. Bergeland
Causes Of Mortality In Poultry Submitted To The Animal Disease Research And Diagnostic Laboratory, July 1976-June 1977, Martin E. Bergeland
South Dakota Poultry Field Day Proceedings and Research Reports, 1977
No abstract provided.