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South Dakota State University

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A Six-Year Summary Of Egg Production Costs And Income Of Layer Flocks On The Sdsu Flock Record Program, Phillip E. Plumart Nov 1977

A Six-Year Summary Of Egg Production Costs And Income Of Layer Flocks On The Sdsu Flock Record Program, Phillip E. Plumart

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

Flockowners cooperating in the South Dakota State University Flock Record Program submitted operating and fixed cost figures after their flocks were closed out. These data and their income data are summarized for the 6 years 1971-72 through 1976-77. The data years run from July 1 to June 30.

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Egg Production Costs And Returns, Leonard Benning, Phillip E. Plumart, Boyd J. Bonzer Nov 1977

Egg Production Costs And Returns, Leonard Benning, Phillip E. Plumart, Boyd J. Bonzer

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

Methods of producing and marketing eggs have changed rapidly. Egg producers must adopt practices that reduce production costs per dozen eggs - Even then, they generally cannot be successful unless they can sell their eggs through stable and well-organized market outlets.

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Bactracin Supplements For Egg Production, C. W. Carlson, E. Guenthner Nov 1977

Bactracin Supplements For Egg Production, C. W. Carlson, E. Guenthner

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

Antibiotics have been used in feed supplements for laying hens for over 25 years. Where controlled studies have been conducted, their use has been shown to improve reproductive performance, especially under adverse conditions. From time to time feeding trials have been conducted at this laboratory to evaluate their potential and perhaps to obtain some leads as to their mode of action.

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Low Protein Grower And Layer Diets And Their Effects On Reproductive Performance, R. A. Nelson, C. W. Carlson Nov 1977

Low Protein Grower And Layer Diets And Their Effects On Reproductive Performance, R. A. Nelson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

Previous experiments have shown that low density grower diets can more economically produce layer-type pullets without affecting their subsequent reproductive performance. Generally, weight gain during the 8- to 20-week grower phase is not affected by these diets, while feed efficiency is somewhat reduced. This report shows the reproductive performance data for the hens from last year's grower study in which the low density type diets were used.

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Ninth Annual Poultry Field Day, Animal Science Department Nov 1977

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.

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Probiotics For Broilers And Turkeys (Ii), C. W. Carlson, E. Guenthner, R. A. Nelson Nov 1977

Probiotics For Broilers And Turkeys (Ii), C. W. Carlson, E. Guenthner, R. A. Nelson

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

The term probiotic implies "in favor of life." Probiotics are defined by some scientists as materials which favor the development of certain types of microorganisms in the gastrointestinal tract of animals. Such changes might be expected to improve performance.

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Interrelationships Of Mercury, Selenium And Arsenic In Broiler Diets, R. J. Emerick, J. C. Chern, I. S. Palmer, R. A. Nelson Nov 1977

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 …

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Effect Of Dietary Protein Level And Restricted Feeding On Egg Production, Shell Quality And Certain Biochemical Parameters In The Laying Hen, C. W. Kang, R. A. Nelson, C. W. Carlson, O. E. Olson Nov 1977

Effect Of Dietary Protein Level And Restricted Feeding On Egg Production, Shell Quality And Certain Biochemical Parameters In The Laying Hen, C. W. Kang, R. A. Nelson, C. W. Carlson, O. E. Olson

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

The objectives of the present investigation are to determine (1) whether restricting feed intake will reduce the rate of lay while lengthening the laying period and improving egg shell quality, (2) whether dietary protein level is involved and (3) whether carbonic anhydrase activity of the shell gland or calcium binding protein of the duodenal lining or the shell gland are related to shell quality.

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Effects Of Corn, Oats And Wheat Diets On The Fatty Liver Hemorrhagic Syndrome, R. A. Nelson, C. W. Carlson Nov 1977

Effects Of Corn, Oats And Wheat Diets On The Fatty Liver Hemorrhagic Syndrome, R. A. Nelson, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1977

Fatty liver hemorrhagic syndrome (FLHS) continues to be a major cause of mortality among caged laying chickens. It ranked third (about 10%) following leukosis and cannibalism in those hens submitted to the Animal Disease Research and Diagnostic Laboratory in 1976. Five more experiments on this subject were completed this past year. One involved a normal feeding regime, while in four experiments the force-feeding technique was used.

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Sdsu Collegian, November 2, 1977, Student Association Of South Dakota State University Nov 1977

Sdsu Collegian, November 2, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 86, No. 10

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Why Every Good Bull Has A Few Poor Daughters And Every Poor Bull Has A Few Good Daughters, Cooperative Extension South Dakota State University Nov 1977

Why Every Good Bull Has A Few Poor Daughters And Every Poor Bull Has A Few Good Daughters, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

You cannot control the randomness of chromosome separation; you cannot decide which sperm will fertilize what egg; and you can't direct the recombination of genes at fertilization. However, you can control the quality of genetic material that is subjected to this randomness.

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Why Every Good Bull Has A Few Poor Daughters And Every Poor Bull Has A Few Good Daughters, Cooperative Extension South Dakota State University Nov 1977

Why Every Good Bull Has A Few Poor Daughters And Every Poor Bull Has A Few Good Daughters, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

You cannot control the randomness of chromosome separation; you cannot decide which sperm will fertilize what egg; and you can't direct the recombination of genes at fertilization. However, you can control the quality of genetic material that is subjected to this randomness.

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Budgets For Major Livestock Enterprises In South Dakota, Allen, J. R. And Jibben, D. Nov 1977

Budgets For Major Livestock Enterprises In South Dakota, Allen, J. R. And Jibben, D.

Agricultural Experiment Station Circulars (1920-1915)

Budgets in this publication reflect normal input-output expectations. They are intended to serve as planning guides for farmers and ranchers, teachers, extension personnel and other individuals or groups who may have use for such information. No single budget can reflect the private situation of all individual producers. There may be variations in the ration being used, rates of gain, starting weights, selling weights, calving rates or overall production efficiency. These are just a few of the variables involved. Price is perhaps the single most important variable affecting return above cost from one year to the next. Therefore, provision is made …

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The Economics Of Livestock Insects At The Feedlot And On The Range, John B. Campbell Oct 1977

The Economics Of Livestock Insects At The Feedlot And On The Range, John B. Campbell

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

The losses to livestock from insects are much more subtle than losses from animal diseases such as "Red Nose" or calf scours but real and costly nevertheless. The Federal Extension Service tries each year to get some estimate on the losses from insects on both crops and animals. These data are not too difficult to obtain for crops because the insect damage is quite visible and yield comparisons make it accurate data. The data on livestock losses from insects, however, are much more subject to guesswork. The estimates are that the livestock industry suffers around a 500 million dollar loss …

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Twenty-First Annual Cattle Feeders Day, Animal Science Department Oct 1977

Twenty-First Annual Cattle Feeders Day, Animal Science Department

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

These are the complete proceedings of the twenty-first annual Cattle Feeders Day held on October 28, 1977 at South Dakota State University.

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Sodium Bentonite And Sodium Bicarbonate In High-Concentrate Beef Cattle Diets, R. J. Emerick, B. H. Dunn, L. B. Embry Oct 1977

Sodium Bentonite And Sodium Bicarbonate In High-Concentrate Beef Cattle Diets, R. J. Emerick, B. H. Dunn, L. B. Embry

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

Sodium bentonite and sodium bicarbonate alter conditions in the rumen and may offer animals protection from some of the harmful effects of rumen acidosis. The potential benefits that may be derived from use of these materials have become increasingly important as backgrounding periods are extended and finishing periods are shortened. The experiment reported herein were designed to investigate the effectiveness of these materials, individually or in combination, in the adaptation of beef cattle to high-concentrate diets.

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Oat Hay Or Oat Haylage For Growing Cattle, L. B. Embry, L. F. Bush Oct 1977

Oat Hay Or Oat Haylage For Growing Cattle, L. B. Embry, L. F. Bush

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

Oats are a major grain and forage crop in South Dakota and acres planted to oats exceed those planted to feed grains (barley, rye, sorghum) other than corn.

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A System Of Predicting The Feedlot Performance Of Growing And Finishing Cattle, Danny G. Fox, J. Roy Black, Gerry L. Kuhl Oct 1977

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, …

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Survey Of Disease Problems In Large Feedlots, James H. Bailey Oct 1977

Survey Of Disease Problems In Large Feedlots, James H. Bailey

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

This report details disease problems in large feedlots.

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Monensin, Tylosin And Protein Supplementation With Finishing Cattle, R. N. Gates Oct 1977

Monensin, Tylosin And Protein Supplementation With Finishing Cattle, R. N. Gates

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

Antibiotic supplementation for feedlot cattle is a common practice as a means of decreasing diesease problems, improving feedlot performance and reducing the incidence of abscessed livers in cattle fed high-concentrate diets. Use of monensin in rations for feedlot cattle has rather consistently improved feed utilization. The use of monensin in combination with an antibiotic has not been extensively studied.

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Utilization Of Aspen Trees As Ruminant Feed Component, L. D. Kamstra, M. Singh, J. Sharps Oct 1977

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. …

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Forage Finishing Exotic Crossbred Cattle, V. L. Anderson, C. A. Dinkel Oct 1977

Forage Finishing Exotic Crossbred Cattle, V. L. Anderson, C. A. Dinkel

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

Ruminants make the most efficient use of forage of any of the farm animal species. Recently, increased attention has been given to finishing cattle on high-forage or all-forage rations. This could become more important if the world demand for grain for human consumption increases and less grain is available for livestock feeding. Limited information is available on forage finishing exotic crossbred cattle. When the percent of forage in a ration is increased, the rate of gain will be reduced and the time spent in the feedlot extended.
This experiment compares the feedlot and carcass performance of exotic crossbred cattle finished …

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Guidelines For Using The Cattle Futures Market, Gene E. Murra Oct 1977

Guidelines For Using The Cattle Futures Market, Gene E. Murra

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

The commodity futures market is one on which people's views are extremely varied. On the one extreme are beliefs that the futures market is a cure-all; the greatest thing since sliced bread; a tool which the cattle feeder cannot afford to do without. On the other extreme are beliefs that the futures market is the next thing to a Nevada casino; it is the surest way to make a small fortune out of a big one; something which should be avoided like the plague.

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Composition Of South Dakota Silages, A. W. Halverson Oct 1977

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.

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Vitamin A Bioptency As Measured By Stores Of Vitamin A In Livers Of Feedlot Cattle, R. M. Luther, L. B. Embry, L. F. Bush Oct 1977

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.

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Feeding And Management On New Feedlot Cattle, L. B. Embry Oct 1977

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.

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Effect Of Range Condition On Steer Gains, J. K. Lewis, S. S. Waller, J. R. Lacey, R. Gibbens Oct 1977

Effect Of Range Condition On Steer Gains, J. K. Lewis, S. S. Waller, J. R. Lacey, R. Gibbens

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

Range is a vast resource that makes up about 43% of the world's land surface, about 50% of the adjacent United States and slightly over 51% of South Dakota. This land is generally unsuited for cultivation due to low prercipitation shallow soils, poor drainage or temperature restrictions but is well adapted to grazing.

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

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

The Collegian Archive : 1970 to 1979

Vol. 86, No. 9

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

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

The Collegian Archive : 1970 to 1979

Vol. 86, No. 8

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Sdsu Collegian, October 12, 1977, Student Association Of South Dakota State University Oct 1977

Sdsu Collegian, October 12, 1977, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 86, No. 7

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