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Nebraska Agricultural Experiment Station: Historical Research Bulletins

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The Vitamin A Content Of Soybean Silage And Of A.I.V., Molasses, And Common Corn Silages, And The Effect Of Feeding These Materials Upon The Vitamin A Content Of Milk, I. L. Hathaway, H. P. Davis, J. C. Brauer Jun 1938

The Vitamin A Content Of Soybean Silage And Of A.I.V., Molasses, And Common Corn Silages, And The Effect Of Feeding These Materials Upon The Vitamin A Content Of Milk, I. L. Hathaway, H. P. Davis, J. C. Brauer

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A study was made of the vitamin A content of soybean silage, and of A.l.V., molasses, and common corn silage. The silages were fed to groups of cows and the vitamin A content of their milk determined. The vitamin A determinations were made by feeding the silage or the milk to groups of rats whose body stores of this vitamin had been depleted by being fed a vitamin-A-deficient ration. Approximately 780 rats were used in these experiments. There were no apparent ill effects of feeding as much as 3.2 grams of the A.l.V. silage per rat per day for eight …

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The Utilization Of Food Elements By Growing Chicks. V. A Comparison Of Cottonseed Meal And Linseed Oil Meal As Portions Of The Protein Concentrate, C. W. Ackerson, M. J. Blish, F. E. Mussehl Jun 1938

The Utilization Of Food Elements By Growing Chicks. V. A Comparison Of Cottonseed Meal And Linseed Oil Meal As Portions Of The Protein Concentrate, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. Two lots of newly hatched chicks were fed rations differing only in five per cent of their make-up. In the ration of one lot five parts of linseed oil meal were added to 95 parts of the base, and in the other ration a mixture of 4.5 parts of cottonseed meal and 0.5 part of starch was added, to keep the protein level the same. The remaining portions of the two concentrates were made up of five parts each of meat scraps and fish meal. 2. The amounts of feed consumed by all chicks of both lots were kept …

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A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood May 1938

A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is the object of this paper to present a method for classifying and evaluating the soils as mapped in regular soil surveys on the basis of land types, which are here defined as areas having reasonably similar productivity and use suitabilities. The standards used to differentiate land types will vary according to the desired objectives, but any material difference in yield, or in practices necessary to maintain a desirable level of productivity will justify recognition of land types. The proposed procedure involves a more detailed study of the influence which soils, slope, erosion, and drainage have on specific crops …

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The Utilization Of Food Elements By Growing Chicks. Iv. Meat Meal And Fish Meal Compared With Meat Meal, Fish Meal, And Soybean Meal As Protein Concentrates, C. W. Ackerson, M. J. Blish, F. E. Mussehl Feb 1938

The Utilization Of Food Elements By Growing Chicks. Iv. Meat Meal And Fish Meal Compared With Meat Meal, Fish Meal, And Soybean Meal As Protein Concentrates, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. Two groups of 15 newly hatched chicks were fed rations differing in the composition of the protein concentrates. One lot received ration 2MFX, in which the concentrate was a mixture of meat meal and fish meal. In ration 3MFSX one-third of the meat and fish meals was replaced by soybean meal. The protein levels of the concentrates and of the rations as fed, were identical. 2. The composition of the chicks at the end of the feeding trial was determined, and the composition of the gains calculated. 3. The gain in live weight per gram of nitrogen or dry …

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The Utilization Of Food Elements By Growing Chicks. Iii. A Comparison Of Calcium Carbonate And Calcium Sulfate As Sources Of Calcium, C. W. Ackerson, M. J. Blish, F. E. Mussehl Dec 1937

The Utilization Of Food Elements By Growing Chicks. Iii. A Comparison Of Calcium Carbonate And Calcium Sulfate As Sources Of Calcium, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

I. The utilization of nitrogen, calcium, and phosphorus was studied with two lots of growing chicks by means of growth and body-analysis experiments. One lot had calcium added to the ration in the form of sulfate and the second received calcium carbonate, the additions being made on an equivalent calcium basis so that the experimental variable was the source of the calcium. 2. The percentage rate of gain and the gain per gram of nitrogen fed were identical in the two lots. 3. No significant differences were found in the utilization of nitrogen, calcium, or phosphorus by the birds of …

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Root Development Of Young Delicious Apple Trees As Affected By Soils And By Cultural Treatments, W. W. Yocum Dec 1937

Root Development Of Young Delicious Apple Trees As Affected By Soils And By Cultural Treatments, W. W. Yocum

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The major problem of this investigation was to determine the effects of different cultural treatments and soil conditions upon the depth and lateral spread of the root systems of young Delicious apple trees during the first three years in the orchard. This study was conducted during the years 1932 to 1934 inclusive.

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The Utilization Of Food Elements By Growing Chicks. Ii. A Comparison Of Protein Concentrates From Single And Multiple Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl Oct 1937

The Utilization Of Food Elements By Growing Chicks. Ii. A Comparison Of Protein Concentrates From Single And Multiple Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. The effect of adding to a basal ration a protein concentrate consisting of meat scraps alone was compared with one made up of a mixture of meat scraps, fish meal, and dried buttermilk by means of growth and body-analysis experiments. 2. The percentages of nitrogen, calcium, and phosphorus contained in the chicks of the lot fed the mixture of three proteins were slightly higher than those found in the lot fed meat scraps as the concentrate. 3. The percentage rate of gain and the gain per gram of nitrogen fed were greater in the lot fed the mixture of …

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Comparative Physiology Of Actinomyces In Relation To Potato Scab, Mitrofan M. Afanasiev Aug 1937

Comparative Physiology Of Actinomyces In Relation To Potato Scab, Mitrofan M. Afanasiev

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The present work was undertaken with the purpose of investigating the physiology of different strains of A. scabies as compared with saprophytic Actinomyces. By a comparative study of these groups, it was thought that differences in the physiology of the two might be found which would give a better understanding of the nature of this parasitism and also of the metabolism of Actinomyces in general. In addition, it was hoped that the determination of the factors influencing the parasitism of Actinomyces might establish a basis for the development of more efficient methods of controlling scab diseases. The present investigation …

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The Influence Of Various Soil Factors Upon Potato Scab Caused By Actinomyces Scabies, R. W. Goss Aug 1937

The Influence Of Various Soil Factors Upon Potato Scab Caused By Actinomyces Scabies, R. W. Goss

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Scab, caused by Actinomyces scabies (Thaxt.) Giiss., is a potato disease of major importance in western Nebraska. Seed treatments are effective in controlling seed-borne scab, but it has been shown that even when healthy or treated seed potatoes are used the disease may be very severe because of infection from the soil. Crop rotation will reduce the incidence of the disease, but the fact that potato scab may cause serious loss in soils never before planted to potatoes indicates that there are numerous factors other than the time interval between potato crops which affect the occurrence of the disease. A …

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Relation Of Height At Withers And Chest Girth To Live Weight Of Dairy Cattle Of Different Breeds And Ages, H. P. Davis, R. F. Morgan, Samuel Brody, A. C. Ragsdale Jul 1937

Relation Of Height At Withers And Chest Girth To Live Weight Of Dairy Cattle Of Different Breeds And Ages, H. P. Davis, R. F. Morgan, Samuel Brody, A. C. Ragsdale

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The size of a dairy cow is important from the standpoint of feed consumption and economy of production and also as an indication of the expected size of offspring. The ultimate disposal of dairy cattle is for beef, and the measure of returns is based upon size and condition. A method for the determination of the approximate weights of dairy females, where scales are not available, is needed. Measurements of dairy cattle which show development and skeletal growth by ages in relationship to weight are presented here for four different dairy breeds.

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The Utilization Of Food Elements By Growing Chicks. I. A Comparison Of Protein Concentrates From Animal And Vegetable Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl Jun 1937

The Utilization Of Food Elements By Growing Chicks. I. A Comparison Of Protein Concentrates From Animal And Vegetable Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. The effects of adding to a basal ration, protein concentrates from animal and vegetable sources were studied by means of growth and body-analysis experiments. 2. There was a small increase in the nitrogen content of the chicks fed the animal protein concentrate, but no differences appeared between lots with respect to their content of calcium and phosphorus. 3. The percentage rate of gain and the gain per gram of nitrogen fed were greater in the lot fed the animal protein concentrate. 4. The lot fed the animal protein concentrate retained more of the nitrogen fed, but less of the …

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Cellar And Cold Storage Of Sound And Mechanically Damaged Triumph Seed Potatoes, H. O. Werner Dec 1936

Cellar And Cold Storage Of Sound And Mechanically Damaged Triumph Seed Potatoes, H. O. Werner

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The object of these experiments was to determine with practically sound, whole potatoes the effect of cold storage during various portions of the storage period and continual cellar storage upon: (a) the weight losses during numerous intervals of storage period; (b) the condition of the potatoes at the end of the storage period in June; and (c) the relative seed value of the various lots of potatoes as determined by field experiments.

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Some Factors Affecting The Cooking Quality Of The Pea And Great Northern Types Of Dry Beans, Edna B. Snyder Oct 1936

Some Factors Affecting The Cooking Quality Of The Pea And Great Northern Types Of Dry Beans, Edna B. Snyder

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Dry beans of the Great Northern and pea-bean type from Nebraska and several other bean-producing states were studied to determine the factors affecting the cooking quality. A standard cooking procedure with distilled water was used to disclose differences in cooking quality, and the percentage of beans too hard for table use was determined for each cooked portion. The factors studied were: soaking, including time and temperatures; storage, including time and storage conditions; age; size; place of origin; effect of chemical solutions; and the composition of the seed coat. The chemical solutions used were hydrochloric and acetic acids in different concentrations; …

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The Effect Of Variation In The Calcium-To-Phosphorus Ratio On The Utilization Of Nitrogen, Calcium, And Phosphorus By The Growing Chick, C. W. Ackerson, M. J. Blish, F. E. Mussehl May 1936

The Effect Of Variation In The Calcium-To-Phosphorus Ratio On The Utilization Of Nitrogen, Calcium, And Phosphorus By The Growing Chick, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. Three groups totaling 123 chicks were fed accurately known amounts of rations containing 0.9, 1.5, and 2.3 per cent of calcium with liberal provision of the antirachitic factor so that conditions for assimilation and deposition were favorable. 2. By means of the comparative slaughter test the retention of ingested nitrogen was found to be about 37 per cent, and that of phosphorus about 28 per cent in the three lots. 3. With 0.9 per cent calcium in the ration, 35 per cent of that ingested was retained; at a level of 1.5 per cent calcium, 24 per cent was …

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The Effect Of Pregnancy And Parturition On The Weight Of Dairy Cows, R. F. Morgan, H. P. Davis Mar 1936

The Effect Of Pregnancy And Parturition On The Weight Of Dairy Cows, R. F. Morgan, H. P. Davis

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A study was made of the effect of pregnancy and parturition upon the weight cycle of dairy cows of the Ayrshire, Guernsey, Holstein, and Jersey breeds according to gestation periods from data accumulated from records for the period 1922 to 1934 of the dairy herd of the Dairy Husbandry Department of the University of Nebraska. The weights of the cows were obtained from three consecutive weighings made at the middle of each month and daily weighings beginning at the 265th day of pregnancy and continuing for 30 days after calving. A total of 656 separate gestation periods were tabulated according …

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The Utilization Of Nitrogen, Calcium, And Phosphorus By The Growing Chick, C. W. Ackerson, M. J. Blish, F. E. Mussehl Sep 1935

The Utilization Of Nitrogen, Calcium, And Phosphorus By The Growing Chick, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. The nitrogen, calcium, and phosphorus content of 127 newly hatched chicks was determined. 2. Thirty newly hatched chicks were fed accurately known amounts of a good chick mash for 60 days. At the end of the period nitrogen, calcium, phosphorus, and fat were determined for each chick. 3. By means of the comparative slaughter test the retention of nitrogen was found to be 37.8 per cent, calcium 43.4 per cent, and phosphorus 27.3 per cent of the respective elements fed. 4. The average gain in live weight per gram of nitrogen fed was 12.0 grams. 5. The rate of …

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Sales Value And Assessed Value Of Nebraska Farm Land: 1921-1934, Eleanor H. Hinman Jul 1935

Sales Value And Assessed Value Of Nebraska Farm Land: 1921-1934, Eleanor H. Hinman

Nebraska Agricultural Experiment Station: Historical Research Bulletins

How to secure just and equitable estimates of the value of farm land as a basis for taxation has always been a vexatious problem. The existing assessment law in Nebraska went into effect April 1, 1921. The present study attempts to show how the assessed valuations of farm real estate made under that law compare with the actual sales value of the farms sold during the 13 years ending March 31, 1934. The data used in this study include records of 35,753 tracts of farm land in 93 Nebraska counties sold during the 13 years ending March 31, 1934.

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A Study Of Farm Families And Their Standards Of Living In Selected Districts Of Nebraska 1931-1933, Margaret Fedde, Ruth Lindquist Jul 1935

A Study Of Farm Families And Their Standards Of Living In Selected Districts Of Nebraska 1931-1933, Margaret Fedde, Ruth Lindquist

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This study of farm families in selected districts of Nebraska was undertaken in order to obtain information regarding the total money value of family living and the proportion of the total used for each of the principal groups of goods. A further purpose was to measure the adequacy of the living provided. The study was begun in January, 1931, and continued through the year 1933. The districts selected included Cass and Fillmore counties throughout the three-year period, and to these Buffalo county was added at the beginning of 1932.

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A Key To The Nebraska Cutworms And Armyworms That Attack Corn, Don B. Whelan Jun 1935

A Key To The Nebraska Cutworms And Armyworms That Attack Corn, Don B. Whelan

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The following key to the Nebraska cutworms and armyworms injurious to corn is based upon structural characters supplemented in some instances by color. Not all of the species in this key have been found in Nebraska; some are included because they are to be found in near-by states to such an extent that they probably are present in this state.

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Wilt And Cold Resistance Of Self-Fertilized Lines Of Alfalfas, George L. Peltier, H. M. Tysdal Sep 1934

Wilt And Cold Resistance Of Self-Fertilized Lines Of Alfalfas, George L. Peltier, H. M. Tysdal

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The relative reactions to cold and wilt of self-fertilized lines of alfalfa through to the fifth generation are reported. Some of the reasons for undertaking a breeding program are given as well as methods used in the controlled cold and wilt determinations. Preliminary studies showed that reinoculating healthy individuals which had already resisted one wilt infection test served to eliminate additional plants, but the percentage healthy was much higher after the reinoculation than after the first inoculation. The foundation materials from which selections were made consisted of selected plants from a number of old Nebraska fields and a large collection …

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The Effect Of A Controlled Nitrogen Supply With Different Temperatures And Photoperiods Upon The Development Of The Potato Plant, H. O. Werner Sep 1934

The Effect Of A Controlled Nitrogen Supply With Different Temperatures And Photoperiods Upon The Development Of The Potato Plant, H. O. Werner

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The potato (Solanum tuberosum Linn.) is grown under a great variety of conditions with regard to temperature, length of day, intensity and character of light, texture, fertility, and moisture of soil, and atmospheric humidity. There is need for a better understanding concerning the internal response of the potato plant to these external conditions when they are applied, either singly or in combination with each other, and the resulting morphological response, especially with regard to the tuberization process. It has been the object of this investigation to determine the relation of the nitrogen supply to the processes of stolon and …

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The Vitamin E Content Of Certain Dairy Feeds, I. L. Hathaway, H. P. Davis Aug 1934

The Vitamin E Content Of Certain Dairy Feeds, I. L. Hathaway, H. P. Davis

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A study was made of the vitamin E content of each of the ingredients of our dairy herd ration, excepting the salt, lime, and bone meal. Female rats which were able to conceive but unable to reproduce when fed a diet deficient in vitamin E were fed the various feeds as a source of vitamin E during a second breeding period. The presence of vitamin E in a feed was thus shown by the ability of the female to cast a litter. The vitamin E content of bran, shorts, linseed oil meal, hominy feed, white corn, yellow corn, cottonseed meal, …

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Some Observations On Humidity And Weight Loss In The Incubation Of Turkey Eggs, F. E. Mussehl, C. W. Ackerson Aug 1934

Some Observations On Humidity And Weight Loss In The Incubation Of Turkey Eggs, F. E. Mussehl, C. W. Ackerson

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. Turkey eggs which are incubated under chicken hens lose from 11 to 13 per cent of their original weight during the first 24 days of incubation. Small turkey eggs lose relatively more weight than large eggs incubated under the same conditions. 2. Considerable variation was observed in the weight loss during the first 24 days of incubation of eggs of approximately the same size when incubated in the same environment. The range was from 7 to 24 per cent of the original weight. Differences in shell texture may account for these variations, although care was taken to select only …

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Effects Of Inflation And Deflation Upon Nebraska Agriculture, 1914 To 1932, H. Clyde Filley Jun 1934

Effects Of Inflation And Deflation Upon Nebraska Agriculture, 1914 To 1932, H. Clyde Filley

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This study attempts to give the effects of war-time inflation and the subsequent deflation upon Nebraska agriculture. It presents statistical evidence of what happened. It is too late to prevent the present depression. Information concerning the situation may aid in promoting recovery. It is hoped that a knowledge of the inflation of 1916 to 1920 and the depression following may aid in avoiding the making of similar errors in the future.

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History Of Farm Land Prices In Eleven Nebraska Counties 1873-1933, Eleanor H. Hinman Jun 1934

History Of Farm Land Prices In Eleven Nebraska Counties 1873-1933, Eleanor H. Hinman

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The subject of farm land price is intimately intertwined with the economic and social welfare of farm people, and even with the financial structure of the nation. A detailed, year-by-year record of farm land sales and prices from several typical Nebraska farming areas over a 61-year period may throw light on the behavior of land values in the counties studied and in similar farming areas, and may help towards supplying a better basis for land price analysis and forecasting than now exists. This bulletin presents such a record for 11 Nebraska counties. It is based on 76,544 true sales of …

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Cephalosporium Wilt And Die-Back Of The White Elm, R. W. Goss, Paul Raymond Frink Jan 1934

Cephalosporium Wilt And Die-Back Of The White Elm, R. W. Goss, Paul Raymond Frink

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A new disease of the white elm has been found to be common in eastern Nebraska. The causal organism has been isolated and its pathogenicity proved by inoculation. The fungus belongs to the genus Cephalosporium and is considered to be the same as that described by Curtis May of Ohio and found by him in specimens obtained in Iowa, Missouri, New York, and Washington, D.C. The morphology and cultural characters of the organism are described.

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The Vitamin A Content Of Skimmilk, Standardized Milk, And Cream From Different Breeds Of Cows, I. L. Hathaway, H. P. Davis Dec 1933

The Vitamin A Content Of Skimmilk, Standardized Milk, And Cream From Different Breeds Of Cows, I. L. Hathaway, H. P. Davis

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A study was made of the vitamin A content of skimmilk, of milk standardized by the addition of separated milk, and of cream. Rats whose body stores of vitamin A had been depleted by being fed a vitamin A deficient ration were fed either skimmilk, standardized milk, or cream as a source of vitamin A. Approximately 750 rats were used in nine experiments. From the results of these experiments the following conclusions were drawn: (1) that the vitamin A content of milk is associated largely with the butterfat and that separated milk containing a small quantity of fat contains only …

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Farm Mortgage History Of Eleven Southeastern Nebraska Townships 1870-1932, Eleanor H. Hinman, J. O. Rankin Aug 1933

Farm Mortgage History Of Eleven Southeastern Nebraska Townships 1870-1932, Eleanor H. Hinman, J. O. Rankin

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is believed that a study of a complete record of all farm mortgages for a typical although very limited Nebraska farming area from 1870 through 1932 may be of interest (1) as a sample of the farm mortgage history of the western part of the corn belt, (2) as a contribution to analyzing some of the sources of agricultural credit and the use made of them, (3) as an illustration of the relation of farm mortgages to land and commodity prices, farm income, and banking resources, and (4) as an example of the mortgage problems of corn belt farmers …

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The Relative Susceptibility Of Alfalfas To Wilt, George L. Peltier Apr 1933

The Relative Susceptibility Of Alfalfas To Wilt, George L. Peltier

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Except for alfalfa seed originating from a few old fields of Turkestan and Ladak, all varieties and strains now grown for commercial seed production in the United States, so far tested, have proved susceptible to wilt. All seed lots tested from South America (Chile, Argentina, and Uruguay), Europe (France, Spain, Portugal, Germany, Hungary, Italy, Roumania, and Ukranian S.S.R.), Africa (Morocco, Algeria, and Abyssinia), and Asia (Palestine, Manchuria, China, Korea, and Chinese Turkestan) were found to be susceptible to wilt. All seed lots of Turkestan origin so far tested are as resistant as Hardistan, or more so. Seed samples from the …

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The Identification Of The More Important Prairie Hay Grasses Of Nebraska By Their Vegetative Characters, F. D. Keim, G. W. Beadle, A. L. Frolik Dec 1932

The Identification Of The More Important Prairie Hay Grasses Of Nebraska By Their Vegetative Characters, F. D. Keim, G. W. Beadle, A. L. Frolik

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is convenient and sometimes necessary to identify the grasses in their vegetative stage of growth. This is especially desirable in a study of the vegetation of native hay meadows and permanent pastures. This key is prepared as a guide in the identification of the more important prairie hay grasses of Nebraska. The meadows are often harvested before the floral parts of many of the grasses appear. If it is desired, therefore, to study the botanical composition of the native meadows, it becomes necessary to rely on identification of many of the grasses by means of vegetative characters.

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