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Articles 6961 - 6990 of 7528
Full-Text Articles in Entire DC Network
Physical And Chemical Properties Of Outdoor Beef Cattle Feedlot Runoff, C. B. Gilbertson, J. R. Ellis, J. A. Nienaber, T. M. Mccalla, T. J. Klopfenstein
Physical And Chemical Properties Of Outdoor Beef Cattle Feedlot Runoff, C. B. Gilbertson, J. R. Ellis, J. A. Nienaber, T. M. Mccalla, T. J. Klopfenstein
Nebraska Agricultural Experiment Station: Historical Research Bulletins
Within the past decade, emphasis has been placed on the quality of our environment. Beef cattle feedlots have been singled out as a significant source of environmental pollution. Environmental protection provided by control facilities requires basic knowledge of the physical and chemical properties of feedlot runoff. This bulletin summarizes studies of physical and chemical properties of beef cattle feedlot runoff completed from August, 1968 through December, 1972.
Effect Of Salinity On Glycogen Content In The Brine Shrimp, Artemia Salinas, Of Great Salt Lake, Christon H. Merkley
Effect Of Salinity On Glycogen Content In The Brine Shrimp, Artemia Salinas, Of Great Salt Lake, Christon H. Merkley
Undergraduate Honors Capstone Projects
The brine shrimp, Artemia salinas, is one of the few organisms to be found in the hostile environment of the Great Salt Lake. Salt concentrations in the lake are found to exceed those in the oceans. In such an environment, the utilization of energy, even after it has been procured, presents a problem. The life inhabiting the lake has developed extraordinary adaptations to this and similar problems.
Electron micrographs produced by Dr. Nabil Youssef of Utah State University have revealed that unusual quantities of glycogen can be found in the muscle of brine shrimp taken from the Great Salt Lake. …
Sodium Bentonite In Ruminant Rations, Daniel P. Colling
Sodium Bentonite In Ruminant Rations, Daniel P. Colling
Open Access Master's Theses (through 2010)
Sodium bentonite, an expanding clay, is being used in many different ways in industry today.The livestock and feed industry, for example, use it in many different ways.It is used as a pellet binder to maintain a fat test in dairy animals, as a digestive aid in the poultry industry and as a “buffering agent” in feedlot rations.
A two-pronged investigation was undertaken to determine the effect sodium bentonite could have on the ruminant feeding industry.One part of the investigation sought to determine if bentonite could partially or entirely alleviate subclinical lactic acidosis with problem rations.The other part of the investigation …
Bulletin No 3963 - Raising Quail, P Smetana
Bulletin No 3963 - Raising Quail, P Smetana
Bulletins - 3000 - 3999
Quail were first domesticated about a thousand years ago, but it was not until the beginning of this century that they were used for meat and egg production.
Commercial quail production is common in many parts of Asia, particularly where there are Chinese communities. In 1965, it was reported that the quail industry in Japan was second in size only to that of the domestic fowl in terms of avian species. Fried or roasted quail and hard boiled eggs are commonly offered for sale in various parts of Asia. Quail eggs are also sought after for sharks fin soup.
A …
Reproductive Efficiency Of Jerseys, Red Sindhis, And Crossbreds, R. E. Mcdowell, B. F. Hollow, J. K. Camoens, L. Dale Van Vleck
Reproductive Efficiency Of Jerseys, Red Sindhis, And Crossbreds, R. E. Mcdowell, B. F. Hollow, J. K. Camoens, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
Ten measures related to breeding efficiency were used for comparisons among pure Jerseys and Red Sindhis and crossbreds with ¾, ½, or ¼ European dairy inheritance (Brown Swiss, Holstein, or Jersey) at two locations. Jerseys and crossbreds were common to both herds with Sindhis only at Jeanerette. Means for age at puberty (first estrus after 12 mo) were 425 ± 4.2, 434 ± 6.9, 459 ± 6.9, 504 ± 14.1, and 717 ± 40.4 days for Jerseys, crosses of ¾, ½, or ¼ and Sindhi. The increase in age of puberty was additive but not entirely. The ¾and ½ tended …
State Of The Fisheries Report 1974, Department Of Fisheries And Wildlife, Western Australia
State Of The Fisheries Report 1974, Department Of Fisheries And Wildlife, Western Australia
Status Reports of the Fisheries and Aquatic Resources
The total value of the fisheries of Western Australia is the highest of any of the States, and the Western Australian rock lobster fishery is the most valuable single fishery in Australia.
A Comparison Of Three Methods Used To Analyze Pronghorn Antelope Diets, Leonard J. Shandruk
A Comparison Of Three Methods Used To Analyze Pronghorn Antelope Diets, Leonard J. Shandruk
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
An increasing interest in fecal analysis as a method of determining diets of herbivores prompted research to determine if this method could be used successfully to determine diets of pronghorn antelope found in Utah's cold desert rangelands. In addition to fecal analysis, quantitative estimates of pronghorn diets were derived from rumen analysis and feeding site observations. Rumen samples were analyzed by three different methods: (1) microscopic, (2) gravimetric, and (3) point frame. In addition to field experiments, samples from a feeding trial with a diet of known composition were used to determine whether or not differential digestion of plant epidermis …
A Comparative Study Of Some Population Characteristics Of Calyptraea Fastigiata Gould, Crepidula Lingulata Gould, And Crepidula Nummaria Gould (Gastropoda, Prosobranchia), Roger Harold Goodwill
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 …
1975 Little International Agricultural Exposition Catalog, Department Of South Dakota State University
1975 Little International Agricultural Exposition Catalog, Department Of South Dakota State University
Little International "Little I" Agricultural Exposition Catalogs
No abstract provided.
Calcium And Phosphorus Requirements In Lupin Seed Rations For Pigs, N W. Godfrey, A. R. Mercy
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
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 …
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
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.
A Unit For Trapping Clean Pollen, S R. Chambers
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 …
Lupinosis And Rates Of Stocking Of Lupin Stubbles, K P. Croker, J. G. Allen, C. R. Lester, R. B. Guthrie
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.
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
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
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 …
Effects Of Source On Copper Uptake By Swine, G. L. Zoubek, E. R. Peo, Jr., B. D. Moser, T. Stahly, P. J. Cunningham
Effects Of Source On Copper Uptake By Swine, G. L. Zoubek, E. R. Peo, Jr., B. D. Moser, T. Stahly, P. J. Cunningham
Department of Animal Science: Faculty Publications
Four catheterized crossbred (Y x H) barrows were used in a 4 x 4 latin square arrangement of treatments in a completely randomized block design, to determine the effect of source on copper uptake as determined by serum Cu concentration changes over a 7.5-hr sampling period.
Amino Acid Additions To A Low Protein Corn-Soy Diet For Egg Production, Ali Baghaye Kashani
Amino Acid Additions To A Low Protein Corn-Soy Diet For Egg Production, Ali Baghaye Kashani
Electronic Theses and Dissertations
The present study was conducted to determine if the protein level of layer diets could be lowered from the: commonly used 16 percent to 12 percent by supplementation of some of the essential amino acids without reducing the performance of hens. The amino acids used were methionine, lysine, tryptophan and isoleucine. Egg production, egg shell thickness, interior egg quality, body weight, feed efficiency and free amino acid content of the albumen of eggs produced were criteria used to measure the (--) to treatment.
Induction Of Parturition In The Ovine, Ernest L. Harman
Induction Of Parturition In The Ovine, Ernest L. Harman
Electronic Theses and Dissertations
The effects of flumethasone and prostaglandin F2 (PGF) on the time of parturition were studied in the ewe. Pregnant ewes with known conception dates were allotted into a 3 x 3 x 2 factorial designed experiment (1973 study) and into a completely random designed experiment (1974 study). In the 1973 study treatments consisted of three hormones (flumethasone, PGF and saline control), three levels (low, .5 mg flumethasone, 5 mg PGF, 1 cc saline; medium, 1.0 mg flumethasone, 10 mg PGF, 2 cc saline; high, 1.5 mg flumethasone, 15 mg PGF, 3 cc saline) and two routes of administration (IM …
Parasites Of Channel Catfish In Illinois Hatcheries, Charles Dale Meryman
Parasites Of Channel Catfish In Illinois Hatcheries, Charles Dale Meryman
Masters Theses
Ninety channel catfish (Ictalurus punctatus) were trapped during September 1973 through April 1974 at three hatcheries located at Worden, Centralia, and Kinmundy, Illinois. All were examined for parasites and 87 were parasitized. The trematodes Azygia angusticauda and Neascus sp. were found in the gastrointestinal system and Cleidodiscus floridanus and Dactylogyrus sp. were attached to the gills. Five cestode genera, including Bothriocephalus sp., Corallobothrium giganteum, Eubothrium sp., Haplobothrium sp., and Proteocephalus ambloplitis were present. Rhabdochona sp. was the only nematode found. Protozoans; Costia sp., Myxobolus sp., Scyphidia macropodia and Trichodina discoidea and one kind of glochidium were observed. …
Eighteenth Annual Cattle Feeders Day, Animal Science Department
Eighteenth Annual Cattle Feeders Day, Animal Science Department
South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1974
These are the complete proceedings of the eighteenth annual Cattle Feeders Day held on November 1, 1974 at South Dakota State University.
Quality Measurement Of Hay Stored By Large Hay Packaging Systems, L. D. Kamstra, R. Schrempp, P. Turnquist, C. Johnson
Quality Measurement Of Hay Stored By Large Hay Packaging Systems, L. D. Kamstra, R. Schrempp, P. Turnquist, C. Johnson
South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1974
The purpose of this study was to determine to what extent large hay package storage retained the initial forage quality by measurement of seven quality parameters over an extended period. The Hesston 60 and Haybuster 1800 were used as examples of hay packaging systems for study.
Biochemical Parameters Of Hereditary Chondrodysplasia In Mice, Trent D. Stephens
Biochemical Parameters Of Hereditary Chondrodysplasia In Mice, Trent D. Stephens
Theses and Dissertations
Cartilage from newborn mice homozygous for chondrodysplasia contains normal quantities of protein and chondroitin sulfate. Mutant fetal cartilage incorporates normal amounts of sulfate, glucose, and glucosamine. Overnight rinsing with water removes about 25% of the incorporated sulfur and existing uronic acid from mutant ribs and about 55% from mutant limbs. Control ribs and limbs are affected very little by such a rinse. The diffusability of chondroitin sulfate (represented by incorporated sulfur and uronic acid) may be due to a lack of covalent bond formation between chondroitin sulfate and collagen.
Nutrient And Energy Composition Of Beef Cattle Feedlot Waste Fractions, C. B. Gilbertson, J. A. Nienaber, J. R. Ellis, T. M. Mccalla, T. J. Klopfenstein, S. D. Farlin
Nutrient And Energy Composition Of Beef Cattle Feedlot Waste Fractions, C. B. Gilbertson, J. A. Nienaber, J. R. Ellis, T. M. Mccalla, T. J. Klopfenstein, S. D. Farlin
Nebraska Agricultural Experiment Station: Historical Research Bulletins
This bulletin describes nutrient and energy composition of beef cattle waste fractions as a function of the ration roughage level and type of feedlot. Results can be used to plan engineering system approaches and research to develop handling and processing equipment necessary for recovery of the most valuable portion of waste.
Manufacture Of Monterey Cheese From Preacidified Milk, Faisal O. Mohamed
Manufacture Of Monterey Cheese From Preacidified Milk, Faisal O. Mohamed
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Whole milk acidified to pH 5.3 with hydrochloric acid was used for the manufacture of Monterey cheese. The milk was inoculated with one and one-half percent lactic starter and set with 12.5 ml rennet per 1000 pounds of milk. Normal washing treatments resulted in cheese with moisture in excess of 44 percent. Moisture content was brought below 44 percent by using wash water at a temperature such that the water-curd-whey mixture was 35 C. The pH of cheese made by preacidification was all between 5.21 and 5.09. No acid defects were encountered. Preacidification eliminated chance of spoilage or losses caused …
Nutrition Of Sheep Grazing Foothill Big Game Range In Spring, Kurt J. Kotter
Nutrition Of Sheep Grazing Foothill Big Game Range In Spring, Kurt J. Kotter
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Sheep with esophageal fistulas were used to determine the daily intake, nutritive content and digestibility of forage at three periods and two stocking intensities during the spring of 1972 on a typical foothill range in northern Utah.
Heavy grazing under a season-long regime did not influence the concentrations of dietary chemical components when compared to moderate grazing; however, it did depress the digestibility of cellulose and organic matter. There was a significant decline in the dietary chemical components due to forage maturation. Digestibility of organic matter and cellulose were significantly higher in the early spring as compared to late spring. …
Quantitative Determination Of Trace Metals In Two Species Of Fish In The Cannon River, Robert E. Nesse, Jeff A. Elzinga
Quantitative Determination Of Trace Metals In Two Species Of Fish In The Cannon River, Robert E. Nesse, Jeff A. Elzinga
Journal of the Minnesota Academy of Science
ABSTRACT - Samples of fish were taken from three stations along the Cannon River and comparatively analyzed for concentrations of Copper and Mercury in their muscle tissue by atomic absorption spectrophotometry. Samples from different stations showed a difference in metal concentration.
Beef Marketing As A Guide To Production Techniques, D J. Barker
Beef Marketing As A Guide To Production Techniques, D J. Barker
Journal of the Department of Agriculture, Western Australia, Series 4
Until about a year ago beef was in strong demand. Almost anything was marketable at favourable prices and good profits could be made even if the production process was wasteful in some respects.
Now the tide has turned. The demand for beef is weak, prices are low and some types of beef are virtually unsaleable. Now more than ever it is important to look critically at the factors which affect beef quality and to seek ways of reducing waste in both feed used and end products marketed.
This article examines production and marketing of beef and points out some inadequacies …
Influence Of Nutritional Regime On Age At Puberty In Gilts, P. J. Cunningham, C. H. Nabor, Dwane R. Zimmerman, E. R. Peo, Jr.
Influence Of Nutritional Regime On Age At Puberty In Gilts, P. J. Cunningham, C. H. Nabor, Dwane R. Zimmerman, E. R. Peo, Jr.
Department of Animal Science: Faculty Publications
Age at puberty was determined for 205 Gene Pool gilts; 68 fed a 10% protein diet (HLC) consisting of high-lysine corn, minerals and vitamins and 137 fed a 14% protein corn soybeam meal diet (CS). Gilts fed the CS diet reached puberty 18.7 days earlier than gilts fed the HLC diet. Use of post-weaning daily gain as a covariable reduced the difference between diets to 9 days. The pooled within diet regression of age at puberty on post-weaning gain was -22.75 days per kilogram. The correlation between pubertal age and daily gain was significantly higher on the HLC diet (-.30 …