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Ninth Annual Poultry Field Day, Animal Science Department

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

These are the complete proceedings of the ninth annual Poultry Field Day held on November 3rd, 1977 at South Dakota State University.

Interrelationships Of Mercury, Selenium And Arsenic In Broiler Diets, R. J. Emerick, J. C. Chern, I. S. Palmer, R. A. Nelson

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

In previous reports from the South Dakota Agricultural Experiment Station (A.S. Series 73-18, 74-19 and 75-37), the effects of methylmercury on growth, egg production and egg hatchability were documented for Leghorn-type hens. In these studies, methylmercury at levels up to 10 p.p.m. of the diet had no effect upon growth but reduced egg production, egg quality and hatchability. Selenium was shown to be partially effective in overcoming these detrimental effects of mercury. On the other hand, an arsenic-selenium interaction is known to exist and many of the environmental segments providing mercury also contain elevated levels of arsenic. Studies described below …

A System Of Predicting The Feedlot Performance Of Growing And Finishing Cattle, Danny G. Fox, J. Roy Black, Gerry L. Kuhl

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1977

The CNES framework needs further generalization since it was developed using average frame size British breed cattle receiving a growth stimulant and fed in a thermal neutral environment. The objective of this paper is to generalize the CNES by using suitable adjustment factors to take into account alternative frame sizes, breeds, sexes and ages, varied body conditions due to previous nutritional treatment, the use of various growth stimulants and feed additives, the associative effects of feedstuffs and various environments. The physiological effects of these factors are estimated using results from a variety of experiments. Dry matter intake equations are described, …

Utilization Of Aspen Trees As Ruminant Feed Component, L. D. Kamstra, M. Singh, J. Sharps

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1977

When traditional roughages are in short supply or high in price, other fibrous feed sources for ruminants should be considered if available at a competitive price. One such fibrous material shown to have potential as a ruminant feed is the aspen tree (Populus tremuloids Michx.) harvested in its entire form to include bark, leaves and trunk. The aspen tree is the most widespread tree species in North America and the least utilized. Estimates exceed 6 million acres of mature trees in an area which would include the Black Hills (58,000 acres), the Great Lakes region and the Rock Mountain region. …

Composition Of South Dakota Silages, A. W. Halverson

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1977

Questions are sometimes raised about the nutritional quality of silages which are harvested and put up in South Dakota. Therefore, chemical data on 1973-75 samples from throughout South Dakota were averaged and subjected to statistical treatment by the coefficient of variation methods. Comparisons were made with United States values on similar feed as reported in the Atlas of Nutritional Data on United States and Canadian Feeds and published by the National Academy of Sciences (NAS, 1971). Total digestible nutrient values (TDN's) were calculated on the South Dakota feeds by use of the digestion coefficients listed in the NAS (1971) reference.

Vitamin A Bioptency As Measured By Stores Of Vitamin A In Livers Of Feedlot Cattle, R. M. Luther, L. B. Embry, L. F. Bush

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1977

The objective of these experiments was to evaluate the biological potency of two sources of vitamin A premix differing in freshness when administered to fattening beef cattle. Chemical assays were compared with blood and liver vitamin A content to measure the biopotency of the vitamin.

Feeding And Management On New Feedlot Cattle, L. B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1977

Several factors to consider in feeding and management of new feedlot cattle are discussed in this report. Information is taken from our research where appropriate. Many shipments of cattle were used in research were used in research during past years to study various feeding and management systems during the first 3 to 4 weeks in the feedlot with data obtained on performance during this time and later growing and finishing in some instances.

Sdsu Collegian, October 19, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 86, No. 8

Paddlefish, D. Deethardt

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

This bulletin regards the paddlefish, its situation in South Dakota, and instructions as to its cleaning, cutting, and canning.

South Dakota Farm And Home Research (Fall 1977), South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

This issue includes the 90th Agricultural Experiment Station annual report.

Abortions in the Swine Herd [p] 3
Phytophthora [p] 5
AMV [p] 7
Feeding Non-Conventional Corn [p] 9
Feeding Wet Corn [p] 10
Three-Grain Silage [p] 12
Rootworm Research [p] 14
Sod Webworms [p] 16
Quality with the Yield [p] 18
Do-it-Yourself Heating [p] 19
Open Ditch v. Buried Pipe [p] 21
PLUS: The 90^th Annual Report of the Agricultural Experiment Station

Sdsu Collegian, September 28, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 86, No. 5

Sdsu Collegian, September 7, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 86, No. 2

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

The Investment [p] 3
Teamwork [p] 5
Aspen [p] 6
Feedlot Nutrition [p] 8
Single-Animal Nutrition [p] 9
Teaching [p] 10
Swine [p] 11
Poultry [p] 13
Rangeland [p] 14
Reproduction [p] 15
Confinement Sheep [p] 16
Meat Science [p] 18
Beef Breeding [p] 19
Biochem [p] 21

Fertilizer Facts, Earl P. Adams, Ed Williamson, Paul L. Carson, Ron Gelderman

SDSU Extension Fact Sheets

This publication provides information on plant nutrients and their effect on plant growth. Fertilizer terms and definitions, sources and forms of common commercial fertilizers, calculating fertilizer rates and cost, and nutrient loss are also explained.

Sdsu Collegian, June 22, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 85, No. 29

Sdsu Collegian, June 8, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 85, No. 28

South Dakota State University Ninety-First Annual Commencement, May 7, 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 91st Annual Commencement ceremony are Victor S. Webster, Professor Emeritus of Chemistry, and Howard M. Sauer, Professor Emeritus of Rural Sociology. North Dakota State University President Laurel D. Loftgard will deliver the commencement address titled, "Dividends That Really Count." Honorary degrees will be awarded to General William E. DePuy, Doctor of Science, Henry P. Holzman, Doctor of Public Service, David Lange Hume, Doctor of Agriculture, and Robert LeRoy McNamara, Doctor of Science. President Sherwood O. Berg will confer …

Warm-Season Grasses For July And August, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

Perennial grasses that provide maximum forage production for mid-summer pasture in July and August will be discussed in this Fact Sheet.

Small Grains For Forage, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

The idea of small grains for forage — pasture, hay, haylage, silage, and greenchop — gains more attention every year.

Small Grains For Forage, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

The idea of small grains for forage — pasture, hay, haylage, silage, and greenchop — gains more attention every year.

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. It would appear reasonable to feed the lactating sow on the basis …

South Dakota State University 1977 Summer Session Bulletin, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

Bounty From The Bin: A Collection Of Recipes Introducing New Uses For Whole Wheat And Triticale Cereal Grains, J. Rosen, D. Deethardt

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

A collection of recipes introducing new uses for whole wheat and triticale cereal grains.

Sdsu Collegian, January 26, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 85, No. 18

Effect Of Type Of Birth, Breed Of Sire And Postweaning Nutrition On Growth Of Ewe Lambs. I. Growth Parameters, A. L. Slyter, D. G. Levis

South Dakota Sheep Field Day Proceedings and Research Reports, 1977

A research project was initiated in the fall of 1970 to evaluate the effect of breed of sire, level of postweaning nutrition, age at first breeding and type of birth on subsequent reproductive performance of the ewe. Data from the growth phase of lambs produced in this study from 1971 through 1975 are presented in this report .

Opportunities With Sheep In South Dakota, Vern Fritz

South Dakota Sheep Field Day Proceedings and Research Reports, 1977

The question is often asked of me, "What's your future with your industry?" I normally reply, "It'll be whatever I make of it--no better and no worse." It appears that the opportunities with sheep in South Dakota would follow the same pattern--whatever we are willing to make of them!

Methods Of Supplementing Carotene And Vitamin A To Vitamin A-Depleted Sheep, R. M. Luther, L. B. Embry, D. F. Samuel, L. F. Bush

South Dakota Sheep Field Day Proceedings and Research Reports, 1977

The primary objective of these experiments was to study the effectiveness of different methods of supplementing vitamin A to vitamin A-depleted lambs as measured by growth, blood plasma levels and liver stores of vitamin A. The second objective was to determine effect of oral and injection methods of carotene administration on subsequent vitamin levels in blood plasma, liver, heart and kidney tissue. Responses were monitored over a period of about 4 weeks.

Sodium Bentonite, Sodium Bicarbonate And Limestone Supplementation In High-Concentrate Diets For Ruminants, Barry Howard Dunn

Electronic Theses and Dissertations

In the past several years, there has been increased interest in what has been referred to by some as the two-phase feeding of ruminants. This includes backgrounding, when animals are fed diets high in roughage during a growing period, followed by high-grain feeding during a relatively short finishing period. An interim period of grain adaptation, usually 2 to 3 weeks in length, is necessary in this feeding system to avoid the deleterious effects of the rumen acidosis associated with abrupt changes from predominantly roughage diets to high-grain diets. Feedlot performance during this adaptation phase is generally lower than desired. The …

Lysine-Energy Relationships In Corn-Soybean Meal Diets For Growing And Finishing Swine, James L. Girard

Electronic Theses and Dissertations

Increasing feed costs in recent years have led researcher and producers to look to different sources for their feedstuffs. Many by-products of various industries have been studied to determine their potential as livestock feeds. One product that has been used to spare feed grains in the diet by increasing the total dietary energy and increasing feed efficiency. The amino acid lysine represents another opportunity to decrease food costs of swine diets when protein supplementation is costly. Lysine is the first limiting amino acid in most practical swine diets. The addition of lysine has proven effective in diets adequate in other …

In Vitro Analysis Of Pre- And Early Postimplantation Development Of Lethal Yellow (Ay/Ay) Mouse Embryos, Linda L. Johnson

Electronic Theses and Dissertations

The dominant A^Y gene of the agouti locus (linkage group V) in the house mouse (Muse musculus) is one of approximately eleven alleles specifying coat color. Homozygosity of the A^Y allele is thought to cause death of the embryo in utero around the time of implantation. For this reason the A^Y/A^Y genotype is called the lethal yellow mouse. The precise time that the primary gene defect is first expressed is not known. Attempts to pinpoint the phenocritical period in an effort to discover the basic biochemical alteration specified by the lethal gene have thus far …