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Sdsu Collegian, November 19, 1970, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 79, No. 9

Roasted Soybeans For Growing-Finishing Swine, Richard C. Wahlstrom, George W. Libal, Richard Berns

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Soybeans contain about 18% fat. In the past it has been economical to process the soybeans into soybean meal. Soybean meal is the major protein supplement fed to swine. The recent development of new equipment to cook soybeans on the farm has resulted in a renewed interest in the use of cooked soybeans in swine rations. The objectives of the study reported here were to compare the performance of pigs fed whole soybean meal and to study the effects of whole soybeans on the carcasses produced.

Protein And Lysine Levels In Growing-Finishing Swine Rations, R. C. Wahlstrom, G. W. Libal, J. F. Fredrikson

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Cereal grains are particularly low in lysine, one of the essential amino acids, and a protein supplement must be fed with grains to supply additional lysine as well as other amino acids. The purpose of the experiment reported herein was to study the performance of growing and finishing pigs when fed rations of different protein content with and without additional lysine supplementation.

Feeding Stalls For Brood Sows, George W. Libal, Richard C. Wahlstrom, J. W. Mccarty

South Dakota Swine Field Day Proceedings and Research Reports, 1970

How to assure that each sow gets her fair share of feed and how to control the "boss" sows are management problems facing the producer who is limit feeding groups of sows in order to get maximum litter size and minimum gestation feed costs. Feeding stalls have proven very effective in achieving both of these objectives. There are several types of commercial stalls on the market as well as several good designs for homemade feeding stalls. The type used South Dakota State University has drawn considerable interest by producers and many have asked for material lists and costs. These stalls …

The Influence Of Energy During Estrus Of On Ovulation Rate, Goerge W. Libal, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Recently, English workers have reported that when sows or gilts that were being limit fed (3 to 4 lb. per day) were allowed a double quantity of feed only on the first feed following breeding the number of ovum shed was increased. When sows were allowed to complete gestation, litter size was larger by approximately 2 pigs. The experiment reported herein was an attempt to duplicate the English work and evaluate this method of "flushing" under South Dakota conditions.

A Study Of Diet Preference By Early Weaned Pigs, Larry Hauser, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1970

The trial reported here was designed to compare the single-stimulus method of palatability testing with the free-choice selection method and to determine the effects of partially delactosed whey, with and without sugar, on the gain and feed efficiency of early weaned pigs.

Effect Of Environment, Sex And Protein Level Of Ration On Performance And Carcass Characteristics Of Growing-Finishing Swine, Richard C. Wahlstrom, George W. Libal, Jacob F. Fredrikson

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Research conducted at the Southeast South Dakota Experiment Farm during the winter of 1968-69 and reported at the 1969 Swine Field Day (A.S. Series 69-38) indicated that the performance of pigs fed rations containing 15% protein to about 115 lb. and 12% protein to market weight was equal to that of pigs fed a ration 17% protein to 115 lb. reduced to 14% protein from 110 lb. to market weight. In the previous trial about 9% more feed was required for those pigs fed in the uncontrolled environment; however, rate of gain was not affected by the type of housing. …

Review Of Research Of The Value Of High Moisture Corn For Growing And Finishing Swine, L. J. Kortan

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Work at South Dakota State University during the 10 year period 1942-1951 with soft corn for growing-finishing pigs showed that hogs are well adapted to utilize soft corn. In all six trials during this period, pigs fed soft corn showed a lower rate of gain per day than the pigs fed hard corn. However, when the soft corn was dried and fed, the pigs made practically the same rate of gain as the pigs fed hard corn. Compared on a dry matter basis, the value of soft corn was practically equal to hard corn for growing pigs. However, the pigs …

High-Lysine Corn In Growing-Finishing Swine Rations, Keith E. Gilster, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1970

The objectives of this experiment were to compare the performance and carcass characteristics of growing-finishing pigs fed rations of normal or opaque-2 corn containing recommend and low levels of protein.

High Lysine Corn Fed Free-Choice To Growing-Finishing Swine, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Analyses of opaque-2 corn have indicated a higher content of lysine and tryptophane than found in normal corn. Since these two amino acids are the most limiting amino acids in most practical swine diets, opaque-2 corn should permit a reduction in the need for supplementary protein. Experiments conducted at the South Dakota Agricultural Experiment Station and at other Experiment Stations have shown this to be true, with less protein supplement needed in swine rations containing opaque-2 corn than in rations containing normal corn.

The Effect Of Gestation Energy Levels On Reproductive Performance Of Sows And Gilts, George W. Libal, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Restricting energy on total feed intake has been accepted as a desirable management pract ice for gestating sows and gilts. The advantages are reduced feed costs during gestation and larger and stronger litters resulting from more proper nutrition of the gestating sow. The common practice of reducing total feed level quite of ten reduces daily intake of energy protein and many of the other nutrients required by the sow. The experiment reported herein is an attempt to establish minimum required levels of metabolize energy for gestating sows and gilts under both summer and winter conditions. These sows will be maintained …

Fourteenth Annual Swine Field Day 1970 Complete Report, Animal Science Department

South Dakota Swine Field Day Proceedings and Research Reports, 1970

These are the complete proceedings of the fourteenth annual South Dakota Swine Field Day held on November 19, 1970 at South Dakota State University.

Vitamin E, Copper, And Tylosin In The Diets Of Growing-Finishing Swine, George E. Libal, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1970

Recent research with growing pigs has shown that vitamin E may be deficient in some corn-soybean meal diets. Some possible reasons why vitamin E deficiencies are being experienced today are that fewer pigs are fed on pasture, which is a good source of vitamin E; more corn is being picked wet and then artificially dried, which can destroy vitamin E; and the presence of a low selenium content of corn.
Copper has been shown to produce a growth response similar to antibiotics when it is fed at levels of 125 to 250 ppm. the study reported herein was conducted during …

The Effect Of Tylosin And A Combination Of Diethylstilbestrol And Methyltestosterone On Performance And Carcass Characteristics Of Finishing Pigs, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1970

This experiment was conducted to obtain further information on the effect of feeding these hormones at a higher level during the first half of the finishing period (100 to 150 lb.) and reducing the level fed for the last half of the period.

Wheat In Swine Finishing Rations, J. W. Mccarty, R. C. Wahlstrom, A. E. Dittman

South Dakota Swine Field Day Proceedings and Research Reports, 1970

The objectives of the trial reported here were:
1. To compare the performance of pigs fed rations with the same proportions of grain and supplement but with the grain corn in one rations and wheat in another ration.
2. To assess the possible feeding value of wheat's greater protein content by use of an all wheat ration in which there was a lower level of supplemental protein.
3. To assess the value of lysine in wheat rations by the effition of lysine to the same ration as used for comparison 2 (above).

Influence Of Temporary Chemical Immobilization Of Boar Spermatozoa Upon In Vitro Survival, W. L. Singleton, T. D. Rich

South Dakota Swine Field Day Proceedings and Research Reports, 1970

The use of artificial insemination (AI) in swine has been restricted because of the inability to store semen. It is usually recommended that for AI use boar semen not be stored more than 48 hours. Obviously, the goal is to develop a technique whereby boar semen could be stored indefinitely such as is the case with bull semen. However, until such a technique is developed, a method of storing boar semen for a few days would be of value for promoting AI in swine.

Pesticides And Poultry, Wayne L. Berndt, Boyd Bonzer

SDSU Extension Fact Sheets

Guide to pesticide use and poultry discusses how to prevent illegal residues, pesticide selection, mixing and handling, application, disposal of containers and unwanted material, and safe use on treated seeds. Includes a chart for insecticide use for South Dakota poultrymen.

Sdsu Collegian, October 7, 1970, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol 79, No. 3

Amino Acid And Protein Requirements Of Layers, E. J. Novacek, R. D. Muller, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

Studies on this problem have taken two approaches, one using a 9.4% protein basal diet supplemented with 0.19% lysine, 0.25% DL-methionine and 0.04% DL-tryptophane and the other comparing a 14% protein plus methionine diet with a typical 16% protein diet.

Can Selenium Increase Egg Production?, R. L. Arnold, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

Selenium is a mineral element which is found as a natural substance in soil, plants and animals. Although it occurs in relatively small quantities it has frequently been found in toxic amounts in some parts of South Dakota. Recent studies have shown it to be essential and it is being regarded in animal nutrition as a valuable trace element. Other trace elements such as copper and iodine have been shown to be beneficial in animal diets and are routinely added to feeds. In order to study what effects added selenium would have in chicken diets we conducted the following experiment.

Salmonella And E. Coli Control, Thomas E. Lucas D.V.M.

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

This document provides information regarding salmonella and E. coli in poultry.

Flock Record Summary, Phillip E. Plumart

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

A computerized flock record keeping system has been developed at State University to assist poultry producers to study their operation from a business standpoint. From records submitted monthly from about 55 flocks, a report is computed and published monthly presenting for each flock the type of data as shown in Table 1. The records of those flocks completing their laying cycle during the calendar years of 1968, 1969 and through July of 1970 are summarized in this Table.

Housing Survey Summary, Phillip E. Plumart

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

A poultry housing information questionnaire was mailed to 280 poultry producers. One hundred and forty-five of the questionnaires were received for a 52% return. Of these, 25 were no longer in the poultry business thereby providing 120 valid returns.

A Comparison Of Slat Floors, Litter Floors And Cages For Laying Hens, P. E. Plumart, R. D. Muller, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

Commercial hybrid pullets were distributed in 3 different buildings at 20 weeks of age and fed similar diets. Twelve slat floor pens in a building referred to as the environment house and 2 litter floor pens in a building referred to as the brooder house each received 140 pullets (1 bird/sq. ft.)- Six pullets were placed in each of 32 cages in a cage layer house.

Second Annual Poultry Field Day, Animal Science Department

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

These are the complete proceedings of the first annual Poultry Field Day held on October 1, 1970 at South Dakota State University.

Using Corn, Wheat, Milo Or Triticale For Egg Production, E. Guenthner

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

Triticale is a cereal hybrid of wheat and rye. Laying diets based on triticale, com, wheat or milo each were fed to 8 groups of 96 SCWL hens in cages. Two diets were formulated from each grain to contain 12.0 and 15.4% crude protein. The diets were designed to make maximum use of the grains. The only protein in the 12.0% triticale and wheat diets was that contained in the grain. Soybean meal was used to balance the other diets. Methionine and lysine were added to provide a minimum of 0.52% methionine plus cystine, and 0.50% lysine. The metabolizable energy …

South Dakota Farm & Home Research (Fall 1970), Agricultural Experiment Station, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

This issue includes the 83rd Annual Experiment Station Annual Report.

Animal Health [p] 4
Community and Public Affairs [p] 6
Crops, Soils, Fertilizers, Weeds [p] 7
Garden and Orchard [p] 12
Home and Consumer [p] 14
Insects [p] 15
Irrigation and Water Resources [p] 17
Livestock [p] 20
Management, Marketing, Business [p] 24
Plant Diseases [p] 27
Pollution and Environment [p] 29
Range [p] 32
Sociology [p] 34
Wildlife and Fisheries [p] 35
Special and Service Type Activities [p] 36
List of Projects [p] 38
List of Publications [p] 41
Financial Statement [p] 52
Staff Members [p] 53
Agricultural Advisory …

Computing Least Cost Diets, D. J. Arshem

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

A study was conducted to compare least cost diets with the standard University com-soy diet at 3 month intervals over the past year. There would have been a savings of $3.66 to $5.34 per ton with the least cost diets which represents a reduction of nearly 1 cent per dozen eggs produced. This means a savings of $135 to $205 per month for 10,000 birds at 70% production.

Iodine To Suppress Ovulation, C. E. Holmquist, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

Additions of iodine to egg production diets have been used experimentally to delay sexual maturity in pullets. A low energy 14% crude protein grower diet with 0, 2,500, 5,000, and 10,000 ppm iodine added in the form of potassium iodide was fed to replicate pens of pullets on litter and replicate groups of pullets in multiple hen cages. All pullets had been grown under nine hours of light per day from eight weeks until the start of the experimental period, at which time day length was increased to twelve hours. The dietary treatments were started at 17, 18, and 19 …

Rachitogenic Activity Of Soybean Protein, D. J. Arshem, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1970

Isolated soy protein diets have been shown to produce rickets in turkey poults. Studies were conducted to determine if this is a peculiarity of isolated soy protein diets or if it is common to all forms of soybean protein. Wrolstad White turkey poults were fed five different forms of soybean protein: I) dehulled solvent extracted soybean meal; 2) full-fat or unextracted soybean meal; 3) RP-IOO; 4) C-I Assay proteins [two isolated soy protein products]; 5) Fibroprotein - a spun textured form of isolated soy protein.