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1970

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Articles 31 - 60 of 774

Full-Text Articles in Life Sciences

Dose-Response Relationship Of Bile Flow To Cholecystokinin Stimulation As Measured By Duodenal Drainage, Robert J. Priest, Roberto F. Gluckmann, J. Edward Berk, Joseph A. Rinaldo Dec 1970

Dose-Response Relationship Of Bile Flow To Cholecystokinin Stimulation As Measured By Duodenal Drainage, Robert J. Priest, Roberto F. Gluckmann, J. Edward Berk, Joseph A. Rinaldo

Henry Ford Hospital Medical Journal

A study was done to evaluate the dose-response of cholecystokinin administered intravenously to normal patients and to patients with diseased gallbladders. The volumes of bile and bilirubin units were measured in duodenal aspirates. A dosage of cholecystokinin between 12.5 and 25 Ivy dog units differentiated the several categories studied. Lower doses of cholecystokinin resulted in no change in the volume of bile, but significantly reduced the output of bilirubin units.


Publications Of The Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research Dec 1970

Publications Of The Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.


The Site Of Absorption Of Xanthophylls And Factors Affecting Pigmentation Of Chickens, Egg Yolks, And Products Made From Egg Yolks, Lloyd Henry Littlefield Dec 1970

The Site Of Absorption Of Xanthophylls And Factors Affecting Pigmentation Of Chickens, Egg Yolks, And Products Made From Egg Yolks, Lloyd Henry Littlefield

Doctoral Dissertations

A total of four experiments were conducted to determine the location of the site of absorption of xanthophylls, to determine the relationship of egg yolk color produced by various feed xanthophylls to the color of mayonnaise, and to study the effect of the level of dietary cow manure, age, ambient temperature and feed consumption of xanthophyll pigmentation of hens and egg yolks.

Increases in the level of blood xanthophylls and visual pigmentation of xanthophyll depleted hens were used to measure the absorption of xanthophylls. Surgical removal of either the duodenum, jejunum, ileum or large intestine resulted in a slight but …


Purification And Properties Of Dna Polymerase From Bacillus Licheniformis And Bacillus Stearothermophilus, Bruce A. Roe Dec 1970

Purification And Properties Of Dna Polymerase From Bacillus Licheniformis And Bacillus Stearothermophilus, Bruce A. Roe

Dissertations

No abstract provided.


Shear Values And Alkali Insoluble Collagen Of Beef Biceps Femoris As Affected By Time And Temperature Of Heating, Cynthia Anne Winstead Dec 1970

Shear Values And Alkali Insoluble Collagen Of Beef Biceps Femoris As Affected By Time And Temperature Of Heating, Cynthia Anne Winstead

Masters Theses

The effect of heating beef cores at 55o, 60o, and 65oC for 30, 60, and 120 minutes was studied. Cores were procured from three pairs of beef biceps femoris muscle from U. S. Choice steers. They were one inch in diameter and were heated in glass tubes in a thermostatically-controlled water bath. Tenderness was evaluated by Warner-Bratzler shear values. The residual alkali insoluble collagen was determined on composite samples of the sheared cores from each heat treatment. Heat treatments were replicated three times, once with each muscle pair.

Cores of muscle heated at 60 …


Training And Employment Needs Of Food Service Personnel In West Tennessee Hospitals, Carole Elizabeth Wilson Dec 1970

Training And Employment Needs Of Food Service Personnel In West Tennessee Hospitals, Carole Elizabeth Wilson

Masters Theses

The study of training and employment needs of food service personnel in 15 selected West Tennessee hospitals was accomplished by means of two questionnaires completed during personal interviews with hospital administrators and food service managers of hospitals in two groups by size. Specific weaknesses in the training of food service employees were noted. Hospital administrators reported inadequately trained employees as one of their major problems, and foodservice managers stated that lack of education and training was a major problem in the procurement of food service personnel. Other problems that administrators and feed service managers mentioned frequently regarding food service employees …


An Evaluation Of Student Attitudes In The Audio-Tutorial Biological Science Program At Western Michigan University And How They Are Reflected In Student Achievement Versus Time Spent In Laboratory, Dorothy Anne Hackett Dec 1970

An Evaluation Of Student Attitudes In The Audio-Tutorial Biological Science Program At Western Michigan University And How They Are Reflected In Student Achievement Versus Time Spent In Laboratory, Dorothy Anne Hackett

Masters Theses

No abstract provided.


A Comparison Of Luteinizing Hormone And Prostaglandin F2 Α Stimulation Of Pseudo-Pregnant Rat Ovarian Steroidogenesis In Vitro, Ross R. Erickson Dec 1970

A Comparison Of Luteinizing Hormone And Prostaglandin F2 Α Stimulation Of Pseudo-Pregnant Rat Ovarian Steroidogenesis In Vitro, Ross R. Erickson

Masters Theses

No abstract provided.


Moisture And Microwave Effects On Selected Characteristics Of Turkey Pectoral Muscles, Georgia Mae Williams Dec 1970

Moisture And Microwave Effects On Selected Characteristics Of Turkey Pectoral Muscles, Georgia Mae Williams

Masters Theses

The effect of added water and microwave heating on several characteristics of ground composites of pectoral muscles of eight USDA Grade A turkey toms was investigated. Samples (200 g) containing 0, 15, or 30 ml added water were prepared and heated in a Raytheon Mark IV Radarange (2450 MHz) for 0, 70, and 130 sec. Water added in the amounts of 15 or 30 ml represented 7 or 13% of the sample weight prior to heating.

Expressible moisture index and total moisture decreased with increased cooking times, whereas fat-free dry weight and initial and total cooking losses increased with cooking. …


Vegetation Of The Big South Fork Cumberland River, Kentucky And Tennessee, John Marcus Safley Jr. Dec 1970

Vegetation Of The Big South Fork Cumberland River, Kentucky And Tennessee, John Marcus Safley Jr.

Masters Theses

The water shed of the Big South Fork of the Cumberland River was studied in the summer of 1969 to determine the relationships existing between soil, site, and vegetational characteristics. Two­ hundred-and-seventy tenth acre plots were established where in trees of overstory size (greater than 5 inches dbh in 2 inch size classes) and under story size (4 1/2 feet tall; 1-5 inches dbh) were measured; herbs, shrubs, seedlings, and vines were sampled within one- hundredth acre subplots. Various soil and site characters were measured for each plot.

Soils were found to be stonier, deeper, and less sandy on lower …


Nesting And Brooding Characteristics Of Sharp-Tailed Grouse (Pedioecetes Phasianellus Jamesi Lincoln) In Southwestern North Dakota, Carter Drew Christenson Dec 1970

Nesting And Brooding Characteristics Of Sharp-Tailed Grouse (Pedioecetes Phasianellus Jamesi Lincoln) In Southwestern North Dakota, Carter Drew Christenson

Theses and Dissertations

A study of the nesting and brood habitat preferences of sharp-tailed grouse (Pedioecetes phasianellus jamesi Lincoln) was conducted in southwestern North Dakota during the reproductive seasons of 1969 and 1970. Radio telemetry was used to monitor the spring and summer activities of seventeen sharp-tail hens. Eight brooding hens were semi-continuously radio-tracked for movement and cover selection. A quantitative and qualitative analysis of seventeen nests and eight renests was made to determine the preferred nesting cover and the effects of intensive grazing upon it .. Nests were established either in non-use areas or in areas of light to moderate grazing. These …


Additional Notes An Some Mammals From Eastern Nebraska, Hugh H. Genoways, Jerry R. Choate Nov 1970

Additional Notes An Some Mammals From Eastern Nebraska, Hugh H. Genoways, Jerry R. Choate

University of Nebraska State Museum: Mammalogy Papers

Field studies concerned primarily with distribution of the short-tailed shrew, Blarina brevicauda, in eastern Nebraska have resulted in noteworthy records of several other species of small mammals. These field studies, which were supported by a grant from the Kansas Academy of Science, entailed extensive trapping of prairie habitats in Cass County, approximately 15 miles west of the Missouri River. In addition to the species discussed below, specimens of Reithrodontomys megalotis, Peromyscus maniculatus, P. leucopus, and Mus musculus were obtained at several localities. All catalogue numbers in the following accounts refer to specimens deposited in the Museum of Natural …


Marine Resource Information Bulletin Vol. 2, No. 15, Virginia Sea Grant, Virginia Institute Of Marine Science Nov 1970

Marine Resource Information Bulletin Vol. 2, No. 15, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

  • Weekly oyster spatfall on shellstrings in Virgina rivers Novermber 1970 and Annual summary 1970


Vitamin E, Copper, And Tylosin In The Diets Of Growing-Finishing Swine, George E. Libal, Richard C. Wahlstrom Nov 1970

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 …


Roasted Soybeans For Growing-Finishing Swine, Richard C. Wahlstrom, George W. Libal, Richard Berns Nov 1970

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.


Influence Of Temporary Chemical Immobilization Of Boar Spermatozoa Upon In Vitro Survival, W. L. Singleton, T. D. Rich Nov 1970

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.


Protein And Lysine Levels In Growing-Finishing Swine Rations, R. C. Wahlstrom, G. W. Libal, J. F. Fredrikson Nov 1970

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.


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 Nov 1970

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 Nov 1970

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).


The Effect Of Gestation Energy Levels On Reproductive Performance Of Sows And Gilts, George W. Libal, Richard C. Wahlstrom Nov 1970

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 …


Feeding Stalls For Brood Sows, George W. Libal, Richard C. Wahlstrom, J. W. Mccarty Nov 1970

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 Nov 1970

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 Nov 1970

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 Nov 1970

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 Nov 1970

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 Nov 1970

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 Nov 1970

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.


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

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.


Farm And Home Bulletin November 1970, Tennessee State University Nov 1970

Farm And Home Bulletin November 1970, Tennessee State University

Farm and Home Bulletin

No abstract provided.


Tb45: Foreign Woods Utilized In Maine, Norman P. Kutscha, L. L. Emery Nov 1970

Tb45: Foreign Woods Utilized In Maine, Norman P. Kutscha, L. L. Emery

Technical Bulletins

The purpose of this study was to (a) evaluate the extent to which foreign woods are used in the state of Maine, (b) to see if any problems exist in the use of these woods, (c) to compile information on the characteristics of the species used and provide this information to the users by supplying them with a copy of this bulletin, and (d) to provide for a better understanding of the significance of foreign wood use in the state.