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Nitrogen Utilization From Soybean Meal And Urea By Normal And Protozoa-Free Lambs, R. M. Luther, J. L. Perkins Jan 1967

Nitrogen Utilization From Soybean Meal And Urea By Normal And Protozoa-Free Lambs, R. M. Luther, J. L. Perkins

South Dakota Sheep Field Day Research Reports, 1967

Proteinaceous feed and other nitrogenous materials ingested by ruminant animals undergo extensive degradation by bacteria and protozoa in the forestomach (ruminotericulum). Ammonia, the chief and end-product of the digestion of food protein in the rumen, is used by rumen microorganisms in synthesis of microbial protein.
The rate and quantity of ammonia produced in the rumen has an important influence on the efficiency of protein utilization by ruminants. Soybean meal appears to be degraded rather slowly in the rumen. On the other hand, urea is rapidly hydralyzed with a rapid release of ammonia. Such differences may have an important influence on …

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Research Reports Concerning Different Aspects Of Pre-Flushing And Flushing Treatments, F. W. Whetzal Jan 1967

Research Reports Concerning Different Aspects Of Pre-Flushing And Flushing Treatments, F. W. Whetzal

South Dakota Sheep Field Day Research Reports, 1967

Several factors are known to determine the prolificacy of the ewe. One of the factors is nutritrion and particularly nutrition prior to mating. The practice of improving nutrition of the ewe prior to mating to increase lambing percentage is widely advocated and adapted in sheep producing countries. It has been shown that flushing of ewes is generally quite beneficial in increasing the number of lambs born. It is reported however, that when ewes are in high condition or have a low gentic potentially for twinning, little or no response will result from flushing. Following are summaries of experimental trials showing …

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Management Practices, L. J. Kortan Jan 1967

Management Practices, L. J. Kortan

South Dakota Sheep Field Day Research Reports, 1967

The introduction found on the first page provides a "situation report", some economic advatages of sheep production, a listing of important South Dakota sheep producing counties, and goals that producers will reach for in the future. Sheep are a significant part of the live stock industry of our state. This situation report briefly reviews these facts.
Throughout my discussion I will mention some important factors in managing a flock which you might consider. The slide series I use will mention some important factors in mamanging a flock which you might consider. The slide series I use will emphasize the discussion …

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Preparation And Marketing Of Wool, J. A. Minyard, Kenneth Leslie Jan 1967

Preparation And Marketing Of Wool, J. A. Minyard, Kenneth Leslie

South Dakota Sheep Field Day Research Reports, 1967

Wool provides an important source of income from the sheep flock. The contribution of wool to total flock income can vary widely depending on breed of sheep, climate, feed, management, price of wool and other factors. Under favorable conditions of production and prices, sale of wool may account for up to 40 per cent of the total reuturns from "wool sheep".

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A Billion Dollar Agriculture For South Dakota, Cooperative Extension Service, South Dakota State University Jan 1967

A Billion Dollar Agriculture For South Dakota, Cooperative Extension Service, South Dakota State University

SDSU Extension Circulars

South Dakota agriculture has the potential to produce $1.15 billion in yearly income by 1980. This can be done largely by improving farm management efficiency and by producing higher quality products for more specific markets. This publication explains trends and predictions as well as production and management goals for crops, livestock, and dairy.

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The Influence Of Artificial Insemination In Three Midwestern States, Wendell Lee. Kucker Jan 1967

The Influence Of Artificial Insemination In Three Midwestern States, Wendell Lee. Kucker

Electronic Theses and Dissertations

Increased productivity of dairy cattle depends in part upon genetic changes brought about by select ion. Because of the long generation interval and low reproductive rate, genetic improvement in dairy cattle is slow. For this reason, the accuracy and effectiveness of selection of sires is of utmost importance. Selection of sires plays a major role in the genetic improvement of dairy cattle since a sire can leave many more descendants than a female. Consequently, the use of outstanding males is important in the genetic advancement of the dairy cattle population in the upper mid west as well as throughout the …

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Consumer Evaluation Of A New Low-Fat Spread-Type Dairy Product, Walter W. Wosje Jan 1967

Consumer Evaluation Of A New Low-Fat Spread-Type Dairy Product, Walter W. Wosje

Electronic Theses and Dissertations

For many years the dairy industry has been going through transitional period whereby many marketing and structural changes have resulted. Generally speaking, these changes have been advantageous to the dairy farmer. During the past years there has been a widespread and increasing interest in profitable means of utilization of dairy by-products. Because of their unique and high nutritional value, the most logical method of disposition of these by-products is, from the standpoint of the general welfare, in human food; generally this is also the most gainful method. The high nutritional value of these products also makes them valuable in feeding …

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A Study Of Seventh And Eighth Grade Home Economics Programs In South Dakota With Implications For Curriculum Development, Lacquita Olson Wagner Jan 1967

A Study Of Seventh And Eighth Grade Home Economics Programs In South Dakota With Implications For Curriculum Development, Lacquita Olson Wagner

Electronic Theses and Dissertations

One of the basic requirements of curriculum building is a clear and concise understanding of social, economic and technological developments which influence the American way of life. In fact curriculum revision is needed because of these rapid changes which are often so rapid that the educator has difficultly interpreting their implications. A first step in curriculum reorganization according to Trump and Baynham involves an analysis of what is being tought and studied by students.9 It was with this thought in mind that the writer developed a questionnaire which was sent to teachers in the public schools teaching homemaking in the …

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Ovine Phosphatic Urolithiasis, Don H. Bushman Jan 1967

Ovine Phosphatic Urolithiasis, Don H. Bushman

Electronic Theses and Dissertations

A series of experiments was conducted using lambs and rats to determine the effect of various levels and sources of dietary phosphate on the incidence of phosphatic urinary calculi. Additional experiments were conducted to determine the degree of protection afforded sheep against urolithiasis by feeding various salts, and to determine the effect of these salts on excretion and retention of various ions. The lambs used in the sheep experiments were crossbred lambs weighing approximately 30 to 33 kg. They were fed a fattening ration consisting of ground shelled corn, alfalfa hay or silage (corn or sorghum) and soybean meal (approximately …

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Digestibility Studies With Western Wheat Grass, Marvin John Wurster Jan 1967

Digestibility Studies With Western Wheat Grass, Marvin John Wurster

Electronic Theses and Dissertations

In order to make the most economical usage of our range forages it is essential that we know when the forage is most digestible in order for livestock to obtain maximum benefit from it. For many years cutting date has been the most common measure used to determine when a forage contains the most nutritive value. In many grasses emergence of the seed head or seed maturity has been used to determine when a particular forage should be harvested, However, western wheatgrass (Agropyron mithill) is not dependent on seed for reproduction and under range conditions often does not produce a …

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South Dakota State University 1967 Summer Session Bulletin, South Dakota State University Jan 1967

South Dakota State University 1967 Summer Session Bulletin, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

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Factors Affecting Body, Texture, And Water Holding Capacity Of A New Low-Fat Spread-Type Dairy Product, Basil K. Dalaly Jan 1967

Factors Affecting Body, Texture, And Water Holding Capacity Of A New Low-Fat Spread-Type Dairy Product, Basil K. Dalaly

Electronic Theses and Dissertations

At the South Dakota State University Dairy Science Department, a challenging work is being conducted to develop a new spread type· dairy product which is made almost entirely of dairy ingredients. It contains about 40% fat, 6% protein, 40% water, and 1.9% salts. Among the problems which faced the workers on this project were the process induced changes in the protein and the water holding capacity, which are interlinked. The problem of water holding capacity is increased by the high water content of the product compared with butter, which contains about 16% water. Maintaining the stability of the fat emulsion …

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The Evaluation Of Soybean Protein As A Major World Food Supply, Ray D. Branham Jan 1967

The Evaluation Of Soybean Protein As A Major World Food Supply, Ray D. Branham

Electronic Theses and Dissertations

There is a need to find a high protein food that is inexpensive and yet contains all the essential amino acids. So far there has been small scale attempts made by a handful of companies to utilize some type of high protein product. Soybean seemed to be a likely possibility to fulfill these qualifications. The primary objective for doing this research problem is to attempt to answer whether soybean protein fits the qualifications necessary to alleviate the world food problem by proving to be an acceptable and inexpensive, yet highly nutritive food for those now suffering or those who will …

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Lipid Mobilization In Beef And Rabbits As Affected By Marketing-Induced Stress Or Acth-Induced Stress, John R. Romans Jan 1967

Lipid Mobilization In Beef And Rabbits As Affected By Marketing-Induced Stress Or Acth-Induced Stress, John R. Romans

Electronic Theses and Dissertations

The effect of stress on intramuscular and plasma lipids was studied in rabbits and beef. Nine mature rabbits were subjected to a constant infusion of ACTH (1.5 mU./min./kg.). Four rabbits completed a 12 hour treatment and two completed an 11-hour treatment. The remaining three rabbits survived treatments of 6, 4, and 2 hours. Blood samples taken at 0, 1, 3, 6, 9 and 12 hours or immediately upon death if it occurred before 12 hours. Initial and final muscle biopsies were taken from the longissimus dorsi directly posterior to the 13th rib on right and left sides, respectively. The stress …

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Electric Fencing For Sheep, C. F. Parker Jan 1967

Electric Fencing For Sheep, C. F. Parker

South Dakota Sheep Field Day Research Reports, 1967

A major fixed cost for sheepmen is the expense of fencing sheep. The rising cost of conventional fencing materials and limited availability of farm labor have cause sheepmen to evaluate alternative fencing methods.

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Antibiotic Supplementation For Pregnant Ewes, J. A. Minyard Jan 1967

Antibiotic Supplementation For Pregnant Ewes, J. A. Minyard

South Dakota Sheep Field Day Research Reports, 1967

Percentage lamb crop weaned is important to profitable lamb production. Lamb losses from birth to weaning can greatly influence percentage lamb crop weaned. In a recent study at the Ohio Station involving 779 lambs, over-all death loss from birth to weaning was 26 per cent. Records from the Montana Experiment Station range flock (7,191 lambs) indicate a death loss of 23.5 per cent from birth to weaning. The age of lambs when most of the losses occur and the msot common causes of lamb mortality suggest a direct relationship between the health of the ewe flock and lamb mortality.
The …

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Effect Of Energy Level On Rumen Fermentation And Ration Digestibility In Normal And Protozoa-Free Lambs, R. M. Luther, J. L. Perkins Jan 1967

Effect Of Energy Level On Rumen Fermentation And Ration Digestibility In Normal And Protozoa-Free Lambs, R. M. Luther, J. L. Perkins

South Dakota Sheep Field Day Research Reports, 1967

This experiment was conducted to determine the effect of energy level of the dier and the presence or absence of the rumen protozoa on the digestibility of ration components, nitrogen retention and rumen fermentation.

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Influence Of Nutrition During The Postweaning-Preflushing Period On Ewe Performance, J. A. Minyard, D. D. Dearborn Jan 1967

Influence Of Nutrition During The Postweaning-Preflushing Period On Ewe Performance, J. A. Minyard, D. D. Dearborn

South Dakota Sheep Field Day Research Reports, 1967

The objective of this experiment was to study the feasibility of maintaing ewes in drylot on a limited ration during the postweaning - pre-flushing period. The cost of treatment and resulting ewe performance were used to evaluate the feasibility.

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Gestation And Lactation Rations For Ewes, J. B. Outhouse, J. A. Osborne, H. Paarlbert, T. W. Perry Jan 1967

Gestation And Lactation Rations For Ewes, J. B. Outhouse, J. A. Osborne, H. Paarlbert, T. W. Perry

South Dakota Sheep Field Day Research Reports, 1967

The purpose of this study is to determine wether these two forms of haylage are satisfactory both nutritionally and economically in the lactation as well as the gestation period.

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The Nutrition Of Ewes, F. W. Whetzal Jan 1967

The Nutrition Of Ewes, F. W. Whetzal

South Dakota Sheep Field Day Research Reports, 1967

Sheep are ruminant animals consequently a large proportion of their nutritional requirements can be met with roughage feeds. With this in mind , then the basis of a good ration for ewes is adequate pasture or other top quality forages. The need for supplemental feeding of protein, energy, minerals and/or vitamins to meet the nutritive requirements will depend upon the amount and quality of forage consumed and on the different stages of a ewes reproductive cycle. A mature breeding ewe can be regarded as having about 6 months of critical nutrition needs while a maintenance ration is adequate during the …

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Effect Of Lambing Ration On Survival And Weaning Weight Of Range Lambs, James K. Lewis, W. R. Trevillyan Jan 1967

Effect Of Lambing Ration On Survival And Weaning Weight Of Range Lambs, James K. Lewis, W. R. Trevillyan

South Dakota Sheep Field Day Research Reports, 1967

Plane of nutrition of the ewe before lambing and during early lactation is an important factor influencing lamb mortality. Previous studies at Antelope Range showed the importance of winter supplementation in lambing percentage and lamb survival and the importance of summer grazing rate on lambing percentage and weaning weight (Gartner, Lewis and Trevillyan, 1965). The intensity of grazing studies have been continued. From 1964 through 1966 a self-fed pelleted ration was compared with hand-fed prarie hay from lambing until being placed on summer pasture. Results of the year 1964 have been reported (Lewis, Gartner and Trevillyan, 1965).

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Genetic Improvement In Sheep, Francis Crandall Jan 1967

Genetic Improvement In Sheep, Francis Crandall

South Dakota Sheep Field Day Research Reports, 1967

The objective in a sheep enterpreise is, or should be, the economical production of high-quality meat and wool. How well the producer achieves this objective is determined by a combination of several factors. They can be grouped broadly as (1) breeding, (2) feeding and management, and (3) marketing and servicing for consumption. Animal breeding is the first step in the efficient production of sheep and wool.

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Pasture Management, James J. O'Connell Jan 1967

Pasture Management, James J. O'Connell

South Dakota Sheep Field Day Research Reports, 1967

This report details some of the practices involved with good pasture management.

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Urea And Nitrate Interrelationships In Sheep Under Feedlot Conditions, D. W. Hoar, L. B. Embry, H. R. King, R. J. Emerick Jan 1967

Urea And Nitrate Interrelationships In Sheep Under Feedlot Conditions, D. W. Hoar, L. B. Embry, H. R. King, R. J. Emerick

South Dakota Sheep Field Day Research Reports, 1967

Several sources of nonorotein nitrogen, including urea and nitrate, are known to be utilized by rumen microbes for protein synthesis after conversion to a common intermediate, ammonia. This has led to the speculation that the presence of urea may result in a decrease in the utilization of nitrate or its reduction products, thereby increasing the apparent toxicity of nitrate.
The experiments reported herein were ccnducted to determine if measurable urea-nitrate interrelationahios exist in sheep under feedlot conditions, and the extent of nitrogen utilization from urea and nitrate by sheep fed rations containing otherwise suboptimum quantities of crude protein.

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Sdsu Collegian, December 14, 1966, Student Association Of South Dakota State University Dec 1966

Sdsu Collegian, December 14, 1966, Student Association Of South Dakota State University

The Collegian Archive : 1960 to 1969

Vol. 75, No. 12

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Diets For Early Weaned Pigs, R.W. Seerley Nov 1966

Diets For Early Weaned Pigs, R.W. Seerley

South Dakota Swine Field Day Proceedings and Research Reports, 1966

Several expensive ingredients are normally included in baby pig rations for optimum performance of the pigs. Some of these ingredients are rolled (hulled ) oats, dried skimmilk, dried whey, sugar and high levels of antibiotics. They are added to improve palatability, increase digestibility of the ration and protect the pigs from scours and harmful microflora. Most of the rations are highly fortified with vitamins. All of these materials, plus pelleting, make the ration rather expensive. Studies at the Minnesota station have shown that pigs do well on the sophisticated rations, but the response over a more simple ration is not …

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Factors Affecting Nutrient Requirement Of Sows During Pregnancy, R.W. Seerley Nov 1966

Factors Affecting Nutrient Requirement Of Sows During Pregnancy, R.W. Seerley

South Dakota Swine Field Day Proceedings and Research Reports, 1966

If restricted feeding is contemplated, a few points deserve special consideration in the feeding program. When the program is geared to meet the needs of the individual sow and not feed excessive quantities of nutrients, more planning is necessary to properly feed each sow.

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A Discussion Of Mastitis Metritis Agalactia Syndrome, Keith Vansteenbergh Nov 1966

A Discussion Of Mastitis Metritis Agalactia Syndrome, Keith Vansteenbergh

South Dakota Swine Field Day Proceedings and Research Reports, 1966

Symptoms of mastitis metritis a galactia syndrome in sows are lack of appetite, stop in milk flow, fever of 103 to 105, shivering or trembling, a hot firm udder 24 to 72 hours after farrowing. Most often there is a white mucoid discharge from the vulva. Sows may or may not allow newborn pigs to nurse, with the result that newborn pigs starve to death. Sows will have normal litters of pigs, or may have weak or stillborn pigs.

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Effect Of Heating On The Nutritional Value Of Grains, Robert W. Seerley Nov 1966

Effect Of Heating On The Nutritional Value Of Grains, Robert W. Seerley

South Dakota Swine Field Day Proceedings and Research Reports, 1966

Temperature is a part of the environment and it undoubtedly has some influence on all grains. The term heating is rather vague to us because there are several types of heat and there is not a definite temperature at the start of heating. Also, destruction of the nutritional value of grain may occur in the case of fire or normal heating after harvesting. On the other side of the coin, the nutritional value of grains may be improved by heat treatment. Heat is used in a variety of ways as a part of the total process of improving feed grains …

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Tenth Annual Swine Field Day 1966 Complete Report, Animal Science Department Nov 1966

Tenth Annual Swine Field Day 1966 Complete Report, Animal Science Department

South Dakota Swine Field Day Proceedings and Research Reports, 1966

This is complete proceedings of the tenth annual South Dakota Swine Field Day held on November 15, 1966 at South Dakota State College.

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