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Evaluation Of Urea And Dried Whey In Diets Of Cows During Early Lactation, David Paul Casper

Electronic Theses and Dissertations

Previous research indicated that soluble nitrogen may be utilized more efficiently for rumen microbial production in diets containing dried whey. To further evaluate this, 33 Holstein, cows (30 multiparous and 3 primiparous) were fed one of three concentrate mixes containing all natural proteins (SBM). 1% urea (U), or 1% urea and 30% dried whey (UDW) from wk 3 through 16 postpartum. Urea replaced portions of the soybean meal in the SBM mix while dried whey replaced portions of the corn and soybean meal. Cows were fed total mixed rations consisting of 40% (dry matter basis) corn silage, 10% alfalfa hay, …

Comparative Nutritive Value Of Soybean Meal, Sunflower Meal, And Meat And Bone Meal For Egg Production, Smart M. Oruseibio

Electronic Theses and Dissertations

Two experiments were conducted over a period of two years to evaluate the comparative nutritive value of soybean meal, sunflower meal, and meat and bone meal. Experiment 1 consisted of 864 Babcock--3OO pullets randomly distributed into twelve diet treatments. Each treatment was replicated six-times with twelve birds per unit. Layers diets were formulated at 16, 14, and 12% protein levels with and without amino acid supplementation. The 12% amino acid supplemented level served as the control in the experiment. Soybean meal, sum-lower meal, and eat_ and bone meal were utilized as major sources of protein supplement in yellow-corn based diets. …

Effects Of Partial Homogenization Of Milk On Yield And Quality Of Cheddar Cheese, Anand Rao

Electronic Theses and Dissertations

In the past decade, the cheese industry in the United States (US) has grown rapidly, with cheese sales increasing by 33% (36). The cheese industry, in 1983, utilized 29.2% of total US milkfat supply as compared to 20.3% utilization in 1973 (36). Compared to the total cheese production of 2,059,2Z8 kg (4,539,822 lb) in 1982, 2,185,611 kg (4,818,449 lb) of cheese were manufactured in 1983 in the .US (36). The increased production of cheese was made possible by modifications in the cheese making process and advent of modern equipment; and it was fostered by increased demand .and higher prices. One …

Introduction To Species Of Special Concern In Pennsylvania, Chapter 6--Mammals, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

First two paragraphs:

The mammals in Pennsylvania have long been under the management authority of the Pennsylvania Game Commission, but it was not until 1978 that an effort was made to deal with threatened and endangered mammals in the Commonwealth. At this time, Michael J. Puglisi was appointed as Coordinator for the Threatened and Endangered Species Program within the Game Commission. In late February 1979, Mr. Puglisi asked Hugh H. Genoways to chair an informal study group on endangered mammals in Pennsylvania. The immediate concern of this group was to be the development of a list of threatened and endangered …

Evaluation Of Yield And Quality Of Cheddar Cheese Manufactured From Milk With Added Whey Protein Concentrate, Kirk Alan Baldwin

Electronic Theses and Dissertations

Large quantities of whey are produced as a by-product from the manufacture of cheese or casein. The United States has an annual cheese production of about 2.2 billion kg. The cheese industry has also experienced a steady increase in cheese production of about 6% a year (44). In the process, nearly 18.1 billion kg of whey are produced. Whey was once a discarded product of little value to the cheese producers. With the advent of laws and regulations governing the disposal of whey, whey became a problem that had few solutions. Even today, with the high cost of disposal and …

Identification Of Volatile Compounds Produced By Brevibacterium Linens That Inhibit Molds, Samuel E. Beattie

Electronic Theses and Dissertations

Mold contamination of processed food and its raw ingredients is a major concern in agriculture. Although at one time mold contamination of cheese and other foods was considered to be of little conse9uence, discovery of carcinogenic and/or teratogenic toxins (73) produced by molds commonly associated with food has changed this innocuous and frequent inconvenience into a serious health consideration. The presence of mold on or in cheese is a common occurrence, indeed, many cheeses depend upon molds to provide characteristic cheese flavor and texture. Cheeses such as blue, Roquefort, Camembert, and Brie are ripened under controlled conditions by species of …

Distribution, Habitat, And Status Of The Gilt Darter (Percina Evides) In Minnesota, J. T. Hatch

Journal of the Minnesota Academy of Science

The distribution and habitat of gilt darter (Percina evides) populations in Minnesota were studied from 1977 through 1983. Gilt darters occurred only in the St. Croix River drainage in moderate to large rivers or near the mouths of large streams. In the late spring, gilt darters were found most often in cobble raceways of moderate to swift current, where they later spawned. Young-of-the-year occupied this same habitat until early fall, when they and the adults moved to deep, swift chutes of rubble riffles to overwinter. Gilt darters tended to associate with the deeper, swifter portions of raceways and riffles, and …

The Economic Potential Of Cashmere Production, A T. Kelly

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

Although the cashmere industry has developed rapidly in eastern Australia, development in Western Australia has lagged behind because of local restrictions on the use of feral goats. However, recently the Agricultural Protection Board has eased these restrictions.

In Western Australia there are about 30 to 40 producers with commercial cashmere flocks, involving a total of 7,500 to 10,000 goeats. In most agricultural areas where sheep production occurs, cashmere production is also possible.

In the following article, A. T. Kelly, an adviser with the Marketing and Economics Branch, discusses the economic potential of cashmere production in this State and compares …

Report On Fish Collections From The Ouachita River Basin, Arkansas, John A. Baker

Journal of the Arkansas Academy of Science

Collections of fishes were made throughout the Ouachita River system of southern Arkansas during July and August 1983. Seventeen sites were sampled using boat arid backpack electroshocker, experimental gill nets, hoop nets, and seines. A total of 8011 fish representing 79 species and one hybrid combination was taken in the study. Comments are presented on the distribution, habitat, and ecology of fishes collected.

Comparative Study Of Lactate Dehydrogenase Activity In Diving And Nondiving Reptiles, Dennis A. Baeyens, Deborah Bursey, Robert Rountree

Journal of the Arkansas Academy of Science

The properties of lactate dehydrogenase (LDH) were examined in two snake species and one turtle species. The snakes used in the study were the semi-aquatic Nerodia rhombifera and the terrestrial Elaphe obsoleta, while Pseudemys scripta represented the turtle species. Our purpose was to compare the LDH activity of nondiving reptiles (Nerodia and Elaphe) with that of the well established diver Pseudemys. The kinetic properties of LDH and its susceptibility to inhibition by elevated pyruvate concentrations were investigated in the brain and heart of the three species. Brain and heart were chosen because they are highly aerobic tissues and therefore should …

A Check-List Of The Spiders Of Arkansas, Peggy Rae Dorris

Journal of the Arkansas Academy of Science

Collections of spiders were made from 1966, to the present in the six physiographic regions of Arkansas. During this time 435 species representing 35 families were collected and recorded.

Analysis Of Arkansas Fur Harvest Records - 1942-1984: I. State And Regional Accounts, Gary A. Heidt, James H. Peck, Tiny Sheldon, Joseph D. Clark

Journal of the Arkansas Academy of Science

Fur harvest records maintained by the Arkansas Game and Fish Commission from 1942-1984 summarized the number of pelts sold by region (Ozark Mountains, Ouachita Mountains, Gulf Coastal Plain, and Mississippi Delta) and the average price per pelt for 16 furbearers. Analysis of these records showed that in the 1979-80 trapping season (the record year for both harvest and value both in Arkansas and the nation), the value of the Arkansas fur harvest ranked 14th nationally (2.12% of total national value). Fur harvests in Arkansas were high in the 1940's, declined in the 1950's and 1960's and then experienced a rapid …

Age And Growth Of The Bluegill Lepomis Macrochrius Rafinesque From An Unmanaged Watershed Lake In Northeast Arkansas With Observations On Lake Ecology, Stephen A. Sewell

Journal of the Arkansas Academy of Science

Age and growth data were compiled on 114 bluegill, Lepomis macrochirus Rafinesque, taken from floodwater retarding structure #15 of the Big Creek Watershed project in Craighead and Greene counties of northeast Arkansas. This project was completed in the early 1960's by USDA-SCS. The 73 surface acre lake has not been managed for fish production and has been subjected to unscheduled water level manipulations during dry weather periods. These manipulations have maintained the bluegill population in healthy condition. The oldest bluegill collected were age class IV+. Average condition coefficient K(TL)declined from oldest to youngest individuals (2.96 in age class IV+ - …

Reports Of Albino Birds In Arkansas Since 1968, Earl L. Hanebrink

Journal of the Arkansas Academy of Science

No abstract provided.

Incidence Of Giardia In Arkansas Beaver, Gary A. Heidt, Ann H. Nichols, James J. Daly

Journal of the Arkansas Academy of Science

No abstract provided.

Identifying Perplexing Chickadee Specimens From Skeletal Material, Douglas A. James, James D. Rising

Journal of the Arkansas Academy of Science

No abstract provided.

Corticocortical Projections Of A Visually Responsive Area In The Cat Brain, Joseph Mcgrath

Journal of the Arkansas Academy of Science

The Clare-Bishop (CB) area bears the name of the investigators who first (1954) demonstrated a cortical area in the cat brain located along the lateral aspect of the middle suprasylvian gyrus which responded electrophysiologically to both optic nerve and striate cortex (area 17) stimulation. More recent studies of CB or the lateral suprasylvian (LS) area have supported its role in visual and/or oculomotor functions. Silver degeneration methods were undertaken to clarify some of the corticocortical connections of this cortical region. The data accumulated provides a morphological basis in support of the CB area's role in visual and/or oculomotor activities

Range Extension Of The Porcupine (Erethizon Dorsatum) Into Southwest Arkansas, Joseph D. Clark

Journal of the Arkansas Academy of Science

No abstract provided.

Role Of Centriolar Matrix And Striated Rootlets In Centriolar Pairing And Orientation During Spermatogenesis In Hydractina Echinata, Maurice G. Kleve

Journal of the Arkansas Academy of Science

Transmission electron microscopy of the spermatogenic stages of the hydroid, Hydractinia echinata, reveals a series of complex structural and positional changes in the centrioles of spermatocytes and spermatids. The newly generated centriolar pairs of spermatocytes form an unusual four-centriole aggregate that persists until cell division. The distal centrioles of this aggregate are shrouded with a very dense matrix that accumulates after centriolar replication. This matrix facilitates the mechanical attachment between distal centrioles and microtubular nucleating satellites, striated rootlets and pericentriolar processes. The association of these accessory structures occurs sequentially and is repeated in spermatocytes and spermatids. An electron dense plaque, …

Nearshore Foodwebs And The Distribution Of Acanthocephalan Parasites In Antarctic Seabirds, Eric P. Hoberg

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Field studies, in the vicinity of Palmer Station during the austral summer of 1982— 1983, yielded an extensive collection of acanthocephalans and other parasites from seabirds, fish and invertebrates. The continuing analysis of this material has resulted in the elucidation of factors that control the occurrence of Corynosoma spp. in Antarctic seabirds. Notably, the host-distribution of Corynosoma spp. suggested that these parasites were being acquired from piscine or possibly amphipod prey, generally in nearshore habitats.

Winter Concentration Areas Of White-Tailed Deer (Odocoileus Virginianus) In Illinois: A Discriminant Analysis, Paul A. Brewer

Masters Theses

Two discriminant models were derived from 40 variables measured in 12 white-tailed deer (Odocoileus virginianus) winter concentration areas and 12 non-concentration areas in east-central Illinois. The first model correctly classified 100% of these areas based on area of refuge, area of upland hardwoods with <50% crown closure, area of bottomland forest with <50% crown closure, distance of unimproved roads, and total topographic relief. This model was tested on 6 winter concentration areas in west-central Illinois and 6 winter concentration areas in northern Illinois. The first discriminant model correctly classified 91.7% of these areas.

The second model originated from the same set of variables, however the refuge area variable was removed in an attempt to classify winter concentration areas without knowledge of refuge areas. This model correctly classified 91.7% of sites in east-central Illinois, and 75% of the areas in west-central and northern Illinois.

Refuge accounted for nearly …

Fisheries Report No 71 - An Investigation Of The Mortality Of The Pearl Oyster, Pinctada Maxima, In Western Australia, Rand Dybdahl, David A. Pass

Fisheries Research Reports

A three year investigation into the cause of abnormally high mortality rates of the pearl oyster, Pinctada maxima, on the cultured pearl industry's lease sites in the North West of Western Australia was completed on 30 June 71983. The objective of this study was to determine environmental, physiological and pathological factors predisposing farm oysters to excessive Levels of mortality and, if possible, make recommendations to alleviate this problem.

As mass mortalities may have complex causes, complementary field and laboratory studies were instigated. The culture industry's method of collection, transportation and farm husbandry were examined. Environmental parameters were monitored. Various empirical …

Economics Of The Pacific Whiting, Merluccius Productus, Fishery, Eric Anderson

Economics Faculty Publications

(First paragraph) Interest in the economics of Pacific whiting, Merluccius productus, production and consumption has been simulated in recent years by expanding U.S. participation in the fishery formerly dominated by foreign fishing and processing. This has raised several questions within the U.S. fishing industry: 1) Will it be profitable for additional U.S. fisherman and processors to enter the fishery? 2) What configuration will the U.S. Pacific whiting industry take? and 3) What will be the nature of markets for Pacific whiting products? This paper summarizes the conclusions of several reports and studies which bear on these questions.

A Pleistocene Jaguar From North-Central Nebraska, C. B. Schultz, Larry D. Martin, M. R. Schultz

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A nearly complete skull of an extinct jaguar, Panthera onca augusta from the Mullen Assemblage in Cherry County, Nebraska, provides new information concerning North American jaguars. The presence of Cervalces, Symbos, Tapirus, and Panthera onca in the Mullen Assemblage seems to indicate an extension of the Pleistocene spruce taiga into north-central Nebraska in the Early to Middle Illinoian.

The Trinidad And Tobago/Venezuela Fishing Agreement, Zaleena K. Chin-Yuen-Kee

Marine Affairs Theses and Major Papers

The twin-island Republic of Trinidad and Tobago is situated adjacent to the Republic Of Venezuela such that at one point Trinidad is merely seven miles off the northeast coast of Venezuela. Fishing activities of nationals of each country in the waters of the other are therefore common and often lead to conflict. In an attempt to solve the fishing problem a fishing agreement was negotiated. It came into force in 1978 and expired in 1984 whereupon negotiations commenced once more in an attempt to achieve new accord. The fishing industries of both countries and the conflicts which led to the …

U.S./Japanese Fishery Relations: Reflections On The Past And The Unsettled Future, Matthew Axel

Marine Affairs Theses and Major Papers

U.S.-Japan fisheries history spans over a half-century of controversy. A variety of developments have taken place over this period from past to present illustrating this point. This paper will present this subject in three parts, corresponding to the historical developments that have taken place. The saga begins with U.S. post-World War II aid in rebuilding the Japanese tuna, whaling and salmon fleets. Round two examines the rapid expansion of the Japanese utilization of Alaska pollock and the development of the surimi trawlers in the early 1960s. Finally, round three, which will encompass the majority of the subject matter discussed, begins …

Cooperatives: Their Effectiveness And Limitations For Small-Scale Fisheries Development, Hiroaki Yonesaka

Marine Affairs Theses and Major Papers

Increased experience in fisheries cooperatives of developing countries has called into question a long-held presumption about their desirability and feasibility. In this context, this study attempts to reformulate the cooperative approach for small-scale fisheries in a realistic policy framework. First, past failures of fisheries cooperatives are analyzed from three different angles: the uniqueness of the fishing industry, systems intrinsic to the cooperative, and development policy. Second, various possibilities of building viable cooperatives are explored by introducing two key concnpets: the strategic option and the operational option. On the one hand, the strategic option implies that it is imperative to integrate …

Premium Prices For Quality Fish: A Case Study Of The F/V Odin, John Sackton

Marine Affairs Theses and Major Papers

During 1982, the F/V ODIN, a fishing vessel from the Port of New Bedford, participated in a program to improve fish quality on board through use of innovative fish handling techniques. The captain and crew hoped to sell higher quality fish at a premium price. This thesis examines the prices the F/V ODIN received prior to participating in this experiment, the price differentials the vessel actually received for landing higher quality fish, and the impact of the program on the prices received by the ODIN following the project. Overall, the ODIN received a price premium equal to 7.2% of the …

The New England Fishing Industry: A Case For Altering Conditions Of Competition In Both The Fishery And In The Market, William Joseph Brennan

Marine Affairs Theses and Major Papers

The New England fishing industry is presented in detail including an historical review, a discussion of current difficulties, and an examination of the public policy dilemma between resource conservation and industry promotion. Continuing efforts to revitalize the United States fishing industry are discussed and underlying problems that have had a negative impact upon the New England industry are outlined. Finally, an alternative public policy approach is developed which addresses fundamental difficulties in the new England region. This approach calls for an elimination of federal financial assistance to the fishing industry and a reduction in the amount of fishery imports reaching …

Biology Of The Antarctic Krill (Euphausia Superba) And Fisheries Management Under The Convention On The Conservation Of Antarctic Marine Living Resources, Randa Ali Mansour

Marine Affairs Theses and Major Papers

Interest in the development of a commercial fishery for Antarctic krill, the lack of a legal regime to govern and promote rational exploitation of Antarctic living resources, and a desire to avoid future conflicts between claimants and non-claimants regarding the control of an Antarctic marine fishery, as well as the desire to set a precedent for management and exploitation of non-living resources were incentives for the negotiation of the Convention on the Conservation of Antarctic marine Living Resources (CCAMLR). Furthermore, the Antarctic Treaty Consultative parties wished to maintain and solidify their control and enhance their collective legitimacy in the Antarctic …