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Agricultural Experiment Station News April 1975

Agricultural Research Division: News and Annual Reports

CONTENTS:
AGRICULTURE COMPUTING NETWORK (AGNET)
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - March 1975
BULLETINS PRINTED

Louisiana Agriculture Magazine, Spring 1975, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

A Comparative Study Of Some Population Characteristics Of Calyptraea Fastigiata Gould, Crepidula Lingulata Gould, And Crepidula Nummaria Gould (Gastropoda, Prosobranchia), Roger Harold Goodwill

Theses and Dissertations

A comparative study of the field populations of Crepidula lingulata, Crepidula nurnmaria, and Calyptraea fastigiata indicated all three preferred a rocky substrate but favored different size rocks. Their positions on the rocks varied but the greatest numbers were found attached to the undersides. Crepidula lingulata and C. nummaria preferred larger rocks and were found in intraspecific associations more often than C. fastigiata which preferred smaller rocks. These associations occurred with a 1:1 sex ratio; however, the overall population did not. Crepidula lingulata had a high female count and C. fastigiata a high male count. Males, of all three species, were …

An Assay Chamber For Quantitative Analysis Of Nitrogen Fixation Using Intact Plants, Thomas Adrie Leslie

Theses and Dissertations

A unique assay system for quantitative analysis of biological nitrogen fixation by intact plants has been constructed and successfully tested. With the system, it has been possible to detect acetylene reduction by intact legumes in situ under laboratory conditions. This assay method is designed to approximate field conditions and in spite of possible procedural errors in sampling, background noise of the gas chromatograph and ethylene contamination of the acetylene gas used in the assay, this method is sensitive ·enough to detect as little as 1 ppm enrichment of ethylene gas as a result of acetylene reduction by intact soybean plants. …

1975 Little International Agricultural Exposition Catalog, Department Of South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Special Report On Zoo Reform

Special Reports

The Humane Society of the United States has taken the lead for the past 3 1/2 years in reforming American zoos. HSUS has awakened Americans to the fact that wild animals have been caged inhumanely for many decades in the nation's zoos and that major and drastic actions are necessary to correct these problems. While HSUS has continued to insist that no wild animal should be exploited simply to create an attraction or exhibit, such is not the state of the world as it exists today. Consequently, HSUS is determined to do everything in its power to alleviate the suffering …

Summary Of Trial Results - 1974, N R. Mckeown

Experimental Summaries - Plant Research

Observations and measurements were made on 10 grazing trials and 11 small-plot legume species trials in 1974. Three of the grazing trials were under crop, two of them concluding low oestrogen species trials which had been grazed since 1969, and one of them, 68M023, West Moora, as an interval between pasture phases. The small-plot trials dated from 1970 or later and on most of them half of each plot could be grazed by sheep and half was protected. These trials have continued to supply useful information on the suitabiliy of cultivars to soil and climate and will be the subject …

Growth Potential Of Sandhills Ranches Through Irrigation, R. D. Carver, G. A. Helmers

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The purpose of this study was to compare extensive and intensive growth strategies of a typical Nebraska Sandhills ranch in a dynamic and uncertain environment. Study objectives were to: (1) Analyze growth of an average ranch firm of 450 animal units as it grows to 600-900 animal units. (2) Study the effects of an uncertain environment on the long-run growth opportunities of a ranch firm. (3) Compare extensive and intensive growth of a ranch firm.

Paying Our Way, College Of Agriculture And Biological Sciences

College of Agriculture, Food and Environmental Sciences Publications

This is a history and examination of the departments that make up the College of Agriculture and Biological Sciences at South Dakota State University.

Proceedings From The 12th Annual Marschall Invitational Italian Cheese Seminar 1975, Various Authors

Cheese Industry Conference

No abstract provided.

Conceptualization And Early Development Of A Water Response Ecosystem Model, D. C. Wilkin, P. W. Lommen, J. V. Robinson, G. S. Innis

Memorandum

No abstract provided.

Data Search For Aquatic Model, J. Perry Ii, G. W. Minshall

Memorandum

No abstract provided.

Demographic Of Termite Colonies As Related To Various Environmental Factors: Population Dynamics And Role In The Detritus Cycle, W. L. Nutting, M. I. Haverty, J. P. Lafage

Memorandum

No abstract provided.

Calcium And Phosphorus Requirements In Lupin Seed Rations For Pigs, N W. Godfrey, A. R. Mercy

Journal of the Department of Agriculture, Western Australia, Series 4

Seed of lupin varieties now available can be combined with wheat or barley to produce a balanced diet for growing/finishing pigs, and lupin seed has become a popular ingredient of pig rations.

As a protein concentrate, lupin seed is a satisfactory alternative to meatmeal, provided adequate amounts of calcium and phosphorus are added as supplements. Without the addition of these elements to rations of lupin seed and grain, a number of problems are likely to arise.

Trials at the Medina Pig Research Station have shown that Christmas Island rock phosphate is the cheapest and most convenient source of supplementary calcium …

The Behaviour Of Swine, J. P. Signoret, B. A. Baldwin, D. Fraser, E. S. E. Hafez

Mammalogy Collection

The pig was a forest-dwelling animal from the beginning of its history. In some parts of the world it has been domesticated for at least 7000 years. The European breeds of domestic swine were derived from the local wild pig, Sus scrofa. Herds ranged in pastures and forests and kept indoors only for fattening. The breeds in the Far East were derived from another wild pig, Sus vittatus, a smaller animal with shorter legs and a higher reproductive ability (Mohr 1960; Zeuner 1963). The two types interbred readily. The modem breeds of pig evolved from different crossings between the two …

Curlew Valley Validation Site Report, R. S. Shinn, R. D. Anderson, M. Merritt, W. Osborne, J. A. Macmahon

Memorandum

No abstract provided.

Classification And Quantification Of Invertebrate Activity And The Role Of Invertebrates In Nitrogen Processing In Plants, Litter And Soil In Curlew Valley, P. R. Sferra

Memorandum

No abstract provided.

Heg75-12 Nebraska Master Mix, Harriet Kohn

University of Nebraska-Lincoln Extension: Historical Materials

The Nebraska Master Mix can be used to make many dishes easily. The homemade mix offers the advantage, over bought mixes, of choosing your own combination of ingredients. For example, you may want to try the whole wheat version with margarine for a deliciously different mix. Simple meals and leftovers can be sparked up by adding a homemade hotbread or other food made from the Nebraska Master Mix.

The Nebraska Master Mix is lower in fat than some but gives very good results. Sugar has been reduced in some of the recipes, but other ingredients have been used to enhance …

Ec75-219 Nebraska Swine Report, William Ahlschwede, T. E. Socha, Alfonso Torres-Medina, A. J. Lewis, P. J. Cunningham, Dwane R. Zimmerman, E. R. Peo Jr., Larry K. Mcmullen, Bobby D. Moser, D. L. Ferguson, Phillip H. Grabouski, Murray Danielson, Charles W. Francis, L. F. Elliott, J. A. Deshazer, Roger W. Mandigo, W. J. Goldner, R. D. Fritschen, Gary Zoubek

University of Nebraska-Lincoln Extension: Historical Materials

This 1975 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating departments for use in the Extension and Teaching programs at the University of Nebraska-Lincoln. Authors from the following areas contributed to this publication: Swine Nutrition, swine diseases, pathology, economics, engineering, swine breeding, meats, agronomy, and diagnostic laboratory. It covers the following areas: breeding, disease control, feeding, nutrition, economics, housing and meats.

G75-232 Cow-Calf Herd Health Program Basics, Dale Grotelueschen, Duane Rice

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide suggests ideas and discusses some basic essentials of health management in beef cow operations.

Establishing a good cow-calf herd health program is a necessary step if profit is to be realized. Managing disease risk is an important aspect of a good health program design. Vaccinations help reduce the probability of disease but cannot solely be depended upon for prevention. Well-designed herd health programs address multiple areas of management in order to reduce likelihood of disease outbreaks. The objective of any beef herd health program should be to profitably produce calves having optimum weaning weights from a high percentage …

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this issue:

2 Water Resources Research

5 The Cost of Trucking Meat

6 Crop Residues Have Forage Potential

8 Supplementation: Livestock on Residues Need It

10 Home Economics' New Home

12 Meet Your Earthwatching Task Force

15 A Look at Nebraska's Export Picture

16 How To Protect Sheep From Flies

18 Can the Industry Really Afford Eggshell Waste?

20 25 Years of Foundation Seed

22 Why Farm Families Moonlight

23 Simulation and the Swine Producer

24 Areas of Excellence

G75-269 Calf Scours: Causes, Prevention And Treatment, Don Hudson, R. Gene White

University of Nebraska-Lincoln Extension: Historical Materials

Calf scours or calf diarrhea: understand how to recognize and treat this costly condition. Calf scours or calf diarrhea causes more financial loss to cow-calf producers than any other disease-related problem they encounter. Calf scours is not a disease--it is a clinical sign of a disease which can have many causes. In diarrheas, the intestine fails to absorb fluids and/or secretion into the intestine is increased.

A Unit For Trapping Clean Pollen, S R. Chambers

Journal of the Department of Agriculture, Western Australia, Series 4

Pollen, the fine particles formed in plant life and carrying the male germ cell responsible for fruit fertilisation and plant embryo formation, has been the subject of continual study over many years.

Original attempts to trap pollen loads from the honeybees were made with the object of feeding back pollen to colonies in times of short supply or over periods of pollen dearth.

With improved trapping methods, harvesting of pollen has developed to the extent that beekeepers can now produce a surplus to their needs.

In a time of world shortage of protein food substances it is not surprising that …

Breeding Better Rape And Lineseed For Western Australia, N N. Roy, J. Reeves

Journal of the Department of Agriculture, Western Australia, Series 4

Rapeseed and linseed—the main oil seed crops grown in the south-west of Western Australia—have both been beset by problems which have limited farmers' interest in them.

Rapeseed was first grown commercially in 1970, when wheat quotas and low prices for other cereals forced farmers to seek alternative cash crops. The area sown to rapeseed increased rapidly, but disastrous outbreaks of the disease blackleg caused rapid decline, and little rapeseed is now sown.

Linseed has been grown in W.A. for more than 30 years. Linseed rust proved disastrous but was overcome by the introduction and breedbreeding of rust-resistant varieties. In recent …

Lupinosis And Rates Of Stocking Of Lupin Stubbles, K P. Croker, J. G. Allen, C. R. Lester, R. B. Guthrie

Journal of the Department of Agriculture, Western Australia, Series 4

Lupin stubbles provide valuable summer sheep feed but under some conditions the fungus Phomopsis rossiana (for which lupins are the host plant) produces a toxin that causes lupinosis. Results from research at Badaingarra Research Station over the 1973-74 and 1974- 75 summers have shown that sheep liver damage associated with lupin stubble grazing is likely to be more severe at high than low stocking rates.

Amino Acid Changes During In Vitro Decomposition Of Marsh Plant Detritus, Armando A. De La Cruz, Kirit D. Chapatwala, William E. Poe

Gulf and Caribbean Research

Dead plant material was collected from a tidal marsh, ground to a uniform size (250 μm) and decomposed in vitro at 30°C in darkness for 36 days. Crude protein, total amino acids, and essential amino acids increased from 19.0 to 31.0 mg/g, 11.1 to 17.6 mg/g and 5.8 to 8.1 mg/g respectively from day 0 to day 36. The amino acid and crude protein values observed in the detritus are generally low but the increment during decomposition is considered significant in terms of the marine consumers that depend on highly decomposed detritus for food.

Block And Bridle Annual, 1975

Block and Bridle Annual (1933–2021)

Table of Contents:

Purpose and Emblem
Animal Science Dep’t Chairmen Addresses
Block and Bridle President Address
Animal Science Faculty
N.U. Graduate Students
Block and Bridle Officers
Block and Bridle Executive Committee
Block and Bridle Members
Block and Bridle Advisors
Animal Science Seniors
Honor’s Banquet
Senior Merit Award
Junior Scholarship Award
Portrait Presentation
Activities and Program Calendar
Quarter Horse Show (1974)
Steer Show (1974)
Spring picnic and Livestock Judging Contest
Summer Meeting and Sticker Sales
Fall Steak Fry and Kid's Day
State Fair Presentations
Presentation Page
Little Ak-Sar-Ben
Ham Sales
National B & B Meeting
Christmas Coffee
Queen Coronation
Regional Meeting …

Maternal Heterosis In Swine: Reproductive Performance And Dam Productivity, R. K. Johnson, I. T. Omtvedt

Department of Animal Science: Faculty Publications

The objectives of this study were to estimate the heterosis of crossbred gilts for ovulation rate and the maternal heterosis of crossbred gilts for dam productivity. A total of 470 gilts were saved for breeding of which 72 were considered reproductive failures. Estimates of heterosis were made from 193 pregnant gilts slaughtered 30 days postbreeding (106 crossbred and 87 purebred)and 192 litters farrowed (98 three-breed and 94 two-breed cross).

The reproductive failure rate for all gilts was 15.3% with there being very little difference~ between purebred and crossbred gilts. Estimates of heterosis for ovulation rate were not significantly different from …

Extracts From The Department Of Agriculture's Annual Report, 1974-75, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The Department of Agriculture's Annual Report for the year ended June 30, 1975, took the form of short reviews of selected activities of the Department during the year.

Some of these reviews are reprinted below to give an idea of the range of activities undertaken by the Department. A limited number of copies of the full report are available to interested organisations from the Department of Agriculture, Jarrah Road, South Perth, 6151.

In past years the Department's report has taken the form of a relatively detailed technical summary of the work of each Division. Because of the large volume of …

1975 Field Experiments On Legume Seed Inoculation, D. L. Chatel

Experimental Summaries - Plant Research

(January 1976) LIST OF EXPERIMENTS 1. The effect of cobalt and seed inoculation on Unicrop lupins. GREEN RANGE 2. The effect of cobalt and seed inoculation on Unicrop lupins. BRAMLEY RESEARCH STATION 3. The effect of cobalt and seed inoculation on Unicrop lupins. McALINDEN 4. The effect; of cobalt and seed inoculation on Unicrop lupins. CHOWERUP 5. The effect of cobalt and seed inoculation on Unicrop lupins. ALANO OKA 6. The effect of cobalt and seed inoculation on Unicrop lupins. LANCELIN 7. The effect of inoculation on Uni crop lupins. KATANNING 8. The effect of inoculation on Uni crop lupins. …