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Articles 18271 - 18300 of 21422
Full-Text Articles in Entire DC Network
Dairy Digest 1993-1994, South Dakota State University Dairy Club
Dairy Digest 1993-1994, South Dakota State University Dairy Club
Dairy Digest
No abstract provided.
Bag And Size Limit Information From Around Australia : Regulations As At September 1993. Presented At The First National Fisheries Managers Conference Terrigal, Nsw., F. B. Prokop
Fisheries Management Papers
This management paper was prepared for the first National Fisheries Managers Conference held in Terrigal NSW. It includes all the current bag and size limits from around Australia. This paper is valuable as it puts the recent management initiatives in Western Australia into a national context.
Economic Impact Study - Commercial Fishing In Western Australia, Paul Mcleod, Carmel Mcginley
Economic Impact Study - Commercial Fishing In Western Australia, Paul Mcleod, Carmel Mcginley
Fisheries Management Papers
The current study seeks to document the extent of the economic activity which is directly related to commercial fishing activities in Western Australia and the magnitude of flow-on effects which these have in the rest of the economy. Impacts are measure in terms of employment and household incomes generated and flow on effects are estimated using multipliers from the Western Australian input-output table.
Sport Fisheries Of The Belgrade Lakes, Maine Department Of Inland Fisheries & Wildlife
Sport Fisheries Of The Belgrade Lakes, Maine Department Of Inland Fisheries & Wildlife
Maine Collection
Sport Fisheries of the Belgrade Lake
Maine Department of Inland Fisheries & Wildlife, Augusta, Maine 1994.
Contents: Belgrade Lakes Chain, Some Vital Statistics / Some Features of the Seven Major Waters of the Belgrade Chain of Lakes / A Partial List of Fish Species That Occur in the Major Waters of the Belgrade Chain of Lakes / East Pond Oakland and Smithfield / Great Pond Oakland, Belgrade, and Rome / Long Pond Mt. Vernon, Rome, and Belgrade / Messalonskee Lake Oakland and Belgrade / North Pond Smithfield, Rome, and Mercer / Salmon Lake and McGrath Pond Belgrade and Oakland
Reproductive Biology And Early Life History Of Fishes In The Ohio River Drainage, Vol. 2, Larry K. Kay, Robert Wallus, Bruce L. Yeager
Reproductive Biology And Early Life History Of Fishes In The Ohio River Drainage, Vol. 2, Larry K. Kay, Robert Wallus, Bruce L. Yeager
Ohio River Fish
No abstract provided.
Block And Bridle Annual, 1994
Block and Bridle Annual (1933–2021)
Table of Contents:
HISTORIAN'S LETTER
EMBLEM AND PURPOSE
DR. ABERLE'S LETTER
lNlTlATES
MEMBERS
CANDIDS
OFFICERS
OTHER IMPORTANT PEOPLE
HONOREE OF THE YEAR, 1993
KIDS', DAY
ANIMAL SCIENCE SCHOLARSHIP RECIPIENTS
FUN ACTIVITIES
IMPORTANT MEETINGS
ANIMAL SCIENCE FACULTY
ANIMAL SCIENCE GRADUATE STUDENTS
BEEF SHOW
BRANDS
QUARTER HORSE SHOW
STATE AGRICULTURAL EDUCATION CONTEST
LITTLE MAEC
LITTLE AK-SAR-BEN
MEATS JUDGING TEAM
MAEC TEAM
HORSE JUDGING TEAM
SENIOR LIVESTOCK JUDGING TEAM
JUNIOR LIVESTOCK JUDGING TEAM
ANNUAL SPONSORSHIP SELLERS
Animal Science Alumni Newsletter, Winter 1994
Animal Science Alumni Newsletter, Winter 1994
Department of Animal Science: Departmental News
Contents:
From the Department Head’s Desk
Animal Science Alumni Open House April 23, 1994
Undergraduate Program
Animal Science Department Hosts Reciprocal Meats Conference
Graduate Program
Food Safety and Quality
Retirement
Death
Block and Bridle Club
Recent Department Awards and Recognitions
Faculty Activities
Gamma Sigma Delta Celebrates Diamond Jubilee
Course and Curriculum Review
Judging Team Activities
Alumni News
Turtles, James F. Fowler, Jimmy L. Avery
Turtles, James F. Fowler, Jimmy L. Avery
Prevention and Control of Wildlife Damage Handbook
Turtles (Terrapene carolina) occur on all continents except Antarctica. Any permanent body of water is a potential home for turtles. Turtles are seldom a pest to people. Most turtles are not protected by state laws.
Habitat Selection By Lacustrine Rainbow Trout Within Gradients Of Temperature, Oxygen, And Food Availability, Chris Luecke, D. Teuscher
Habitat Selection By Lacustrine Rainbow Trout Within Gradients Of Temperature, Oxygen, And Food Availability, Chris Luecke, D. Teuscher
Watershed Sciences Faculty Publications
Rainbow trout (Oncorhynchus mykiss [Walbaum]) in Castle Lake, California were concentrated at certain depths during day and evening hours. A fish bioenergetics simulation model based on vertical gradients of temperature, oxygen concentration, and food availability indicated that rainbow trout selected habitats that maximized growth rate. In 1 of the 2 years of study, a strong pattern of diel vertical migration of rainbow trout was evident and was associated with vertical migrations of daphnids in the lake. The simulation model correctly predicted the occurrence and magnitude of fish migration. During the day some trout resided at depths with little potential for …
Predator Deterrence In The Central Newt, Notophthalmus Viridescens Louisianensis (Wolterstorff) With Notes On Salamander Antipredator Strategies, Malcolm Mccallum
Predator Deterrence In The Central Newt, Notophthalmus Viridescens Louisianensis (Wolterstorff) With Notes On Salamander Antipredator Strategies, Malcolm Mccallum
Masters Theses
The effectiveness of the skin secretions of Notophthalmus viridescens as a predator deterrent has been well documented. Still, there have been documented cases of predation on this salamander. This study investigates the ability of a variety of herptiles to feed on N. viridescens louisianensis.
In the first experiment, plethodonts and efts were fed on alternate weeks to snakes. Latency of response, anatomical location of predator attack, and behaviors displayed by predators and prey were recorded during each trial.
In the second experiment, tongue flick frequency by T. sirtalis to the essence of live N. viridescens louisianensis, Eurycea cirigerra …
Artificial Cavity Box Use By Eastern Screech Owl, Otus Asio, Lori A. Davis
Artificial Cavity Box Use By Eastern Screech Owl, Otus Asio, Lori A. Davis
Masters Theses
Screech owl use of 29 artificial cavity boxes placed in wooded habitat on a 14.6 hectare study area in east central Illinois was monitored from 1975 through 1993. A total of 28 screech owls were captured a total of 155 times. Two to 4 adults were usually present and 3 broods were reared in the boxes. The time between first and last capture of birds taken 4 or more times ranged from 270 to 2589 days (average 1740 days). Home range of 5 owls captured 8 to 17 times ranged from 0.45 to 6.0 ha. Cavity boxes were used more …
Homosexual Copulations By Male Tree Swallows, Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, Timothy S. Kluisza
Homosexual Copulations By Male Tree Swallows, Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, Timothy S. Kluisza
Peer Reviewed Publications
Homosexual courtship behavior in non-human animals is well known (Ford and Beach 1980) and occurs in a wide variety of taxa. However, homosexual copulations, especially between males, are less well known. In birds, males mounting other males have been observed in the colonially breeding Cattle Egret (Bubulcus ibis) (Fujioka and Yamagishi 1981) and Common Murre (Uria aalge) (Birkhead et al. 1985, Hatchwell 1988). Neither Fujioka and Yamagishi (1981) nor Birkhead et al. (1985) and Hatchwell (1988) reported whether cloacal contact occurred during their observations of male-male mountings. Here we describe homosexual copulations by male Tree Swallows …
Modeling Oyster Populations. Iv. Rates Of Mortality, Population Crashes, And Management, E. N. Powell, J. M. Klinck, E. E. Hofmann, S. M. Ray
Modeling Oyster Populations. Iv. Rates Of Mortality, Population Crashes, And Management, E. N. Powell, J. M. Klinck, E. E. Hofmann, S. M. Ray
CCPO Publications
A time-dependent energy-flow model was used to examine how mortality affects oyster populations over the latitudinal gradient from Galveston Bay, Texas, to Chesapeake Bay, Virginia. Simulations using different mortality rates showed that mortality is required for market-site oysters to be a component of the population's size-frequency distribution; otherwise a population of stunted individuals results. As mortality extends into the juvenile sizes, the population's size frequency shifts toward the larger sizes. In many cases adults increase despite a decrease in overall population abundance. Simulations, in which the timing of mortality varied, showed that oyster populations are more susceptible to population declines …
Modeling Oyster Populations Ii. Adult Size And Reproductive Effort, E. E. Hofmann, J. M. Klinck, E. N. Powell, S. Boyles, M. Ellis
Modeling Oyster Populations Ii. Adult Size And Reproductive Effort, E. E. Hofmann, J. M. Klinck, E. N. Powell, S. Boyles, M. Ellis
CCPO Publications
A time-dependent model of energy flow in post-settlement oyster populations is used to examine the factors that influence adult size and reproductive effort in a particular habitat, Galveston Bay, Texas, and in habitats that extend from Laguna Madre, Texas to Chesapeake Bay. The simulated populations show that adult size and reproductive effort are determined by the allocation of net production to somatic or reproductive tissue development and the rate of food acquisition, both of which are temperature dependent. For similar food conditions, increased temperature reduces the allocation of net production to somatic tissue and increases the rate of food acquisition. …
Status Of The Endangered Gray Bat (Myotis Grisescens) Hibernating Populations In Arkansas, Michael J. Harvey
Status Of The Endangered Gray Bat (Myotis Grisescens) Hibernating Populations In Arkansas, Michael J. Harvey
Journal of the Arkansas Academy of Science
No abstract provided.
New Records Of Bolivian Mammals, Jorge A. Salazar-Bravo, Mariel Campbell, Sydney Anderson, Scott Lyell Gardner, John L. Dunnum
New Records Of Bolivian Mammals, Jorge A. Salazar-Bravo, Mariel Campbell, Sydney Anderson, Scott Lyell Gardner, John L. Dunnum
Harold W. Manter Laboratory of Parasitology: Faculty Publications
We present new records of occurrence and distribution for two species of didelphid marsupials and one species of echimyid rodent. Specimens were obtained from May through August 1991 and June through August 1992 in a study of mammalian diversity of Bolivia, a joint project between the Colección Boliviana de Fauna in La Paz, the Museum of Southwestern Biology (University of New Mexico), the American Museum of Natural History (New York), the Museo “Noel Kempff Mercado” de Historia Natural in Santa Cruz de la Sierra, and the University of California at Davis. This project is an attempt to strength Bolivian collections …
The Effect Of High Intensity Exercise Training Verses Low Intensity Exercise Training On Fractionated Plasma High-Density Lipoprotein Cholesterol, Teresa L. Spate
The Effect Of High Intensity Exercise Training Verses Low Intensity Exercise Training On Fractionated Plasma High-Density Lipoprotein Cholesterol, Teresa L. Spate
Masters Theses
Exercise training is thought to result in an elevation of high-density lipoprotein (HDL) and the cardioprotective subfraction HDL{dollar}\sb2{dollar}. Twenty-five healthy women (39 {dollar}\pm{dollar} 7.8 yrs; 70 {dollar}\pm{dollar} 14 kg) walked two miles three times per week for 12 weeks to examine the effect of exercise intensity on the HDL profile. The L.I. group (N = 12) walked at 60% of the heart rate reserve (HRR) and the H.I. group (N = 13) walked at 80% HRR both maintaining the prescribed distance and frequency. A 22% increase in total HDL (from 32 {dollar}\pm{dollar} 6 to 39 {dollar}\pm{dollar} 8 mg/dl) and a …
Identification Of Tire Leachate Toxicants And A Risk Assessment Of Water Quality Effects Using Tire Reefs In Canals, S. M. Nelson, G. Mueller, D. C. Hemphill, U.S. Bureau Of Reclamation
Identification Of Tire Leachate Toxicants And A Risk Assessment Of Water Quality Effects Using Tire Reefs In Canals, S. M. Nelson, G. Mueller, D. C. Hemphill, U.S. Bureau Of Reclamation
Publications (WR)
Cover is an important component of aquatic habitat and fisheries management. Fisheries biologists often try to improve habitats through the addition of natural and artificial material to improve cover diversity and complexity. Habitat-improvement programs range from submerging used Christmas trees to more complex programs using sophisticated artificial habitat modules. Used automobile tires have been employed in the large scale construction of reefs and fish attractors in marine environments and to a lesser extent in freshwater and have been recognized as a durable, inexpensive and long-lasting material which benefits fishery communities.
Recent studies by the U.S. Bureau of Reclamation have quantified …
Terrapene Carolina Carolina, Joseph C. Mitchell, Rafael O. De Sá
Terrapene Carolina Carolina, Joseph C. Mitchell, Rafael O. De Sá
Biology Faculty Publications
TERRAPENE CAROLINA CAROLINA (Eastern Box Turtle). REPRODUCTION. Female Terrapene carolina containing oviductal eggs have been recorded in Virginia from 26 May to 25 July (Mitchell, in press. The Reptiles of Virginia. Smithsonian Inst. Press, Washington, D.C.). Other reports of reproduction in Terrapene (see list in Ernst and McBreen 1991. Cat. Amer. Amphib. Rept. 512.1-512.13) indicate that nesting occurs in late spring and early summer throughout its range.
Detection Of Trypanosome Infections In The Saliva Of Tsetse Flies And Buffy-Coat Samples From Antigenaemic But Aparasitaemic Cattle, P. A.O. Majiwa, R. Thatthi, S. K. Moloo, J. H.P. Nyeko
Detection Of Trypanosome Infections In The Saliva Of Tsetse Flies And Buffy-Coat Samples From Antigenaemic But Aparasitaemic Cattle, P. A.O. Majiwa, R. Thatthi, S. K. Moloo, J. H.P. Nyeko
All Peer-Reviewed Publications
Relatively simple protocols employing non-radioactive DNA probes have been used for the detection of African trypano-somes in the blood of mammalian hosts and the saliva of live tsetse flies. In combination with the polymerase chain reaction (PCR), the protocols revealed trypanosomes in buffy-coat samples from antigenaemic but aparasitaemic cattle and in the saliva of live, infected tsetse flies. Furthermore, the protocols were used to demonstrate concurrent natural infections of single tsetse flies with different species of African trypanosomes. © 1994, Cambridge University Press. All rights reserved.
Using Ultrasound Technology In Reproduction Management, Douglas D. Zalesky
Using Ultrasound Technology In Reproduction Management, Douglas D. Zalesky
Range Beef Cow Symposium
Reproductive performance in cow-calf operations is one of, if not the most important factor affecting profitability in a herd. Several economic studies have suggested that reproductive traits are 5 to 10 times more important than growth traits and 5 to 20 times more important than carcass traits in determining the net profitability in an operation. Therefore, achieving high levels of reproductive efficiency should be the top or one of the top goals of any cow-calf operation.
Ultrasound technology is by no means a new technology. Its use in live animals was first described in 1950 by J.J. Wild. He described …
Setting Direction And Effective Management Style, Burke Teichert
Setting Direction And Effective Management Style, Burke Teichert
Range Beef Cow Symposium
Management style is a major determinant of effectiveness. Setting direction in turn is an integral part of an effective management style. At Rex Ranch our mission or long term direction is to "maximize long term profit while improving the land, animal and human resources." The redundancy in the mission statement is recognized and intended. If we fail to improve the land, animal and human resources, we will not be competitive or profitable in the long run. So, that part of the statement is to keep us based on correct principles.
A ranch is really a production and marketing system made …
Optimum Mainstream Crossbreeding System's "Omc Hairpin Brand Bell Curve Strategies" Including Crossbreeding And Composites For Success In The Cow Business, Jim Leachman
Range Beef Cow Symposium
I. PLANNING the future of your cow outfit should involve an assessment of:
A. PRESENT STATUS: a realistic inventory of where you are in terms of competitive production parameters, including:
1. cost per pound weaned per cow exposed,
2. percentage of cattle meeting carcass yield, grade, and weight specs.
B. PROPER GOALS: informed visions of the direction of a consumer-based market driven industry such as:
1. redefining quality as a uniform product with consistent eating qualities,
2. discounts for products not meeting targets and needs.
C. CORRECT STRATEGIES: the game plans which theoretically and practically have a good probability of …
Across Breed Expected Progeny Differences (Epd's), James A. Gosey
Across Breed Expected Progeny Differences (Epd's), James A. Gosey
Range Beef Cow Symposium
If commercial beef producers were to abandon crossbreeding, there would be no need to consider Across Breed EPD's. With only one dominant breed such as the dairy industry's Holstein, sire selection would be greatly simplified. Given the diversity of production environments, management systems and market scenarios within which beef is produced, it seems unlikely that a least-cost producer will approach the business without crossbreeding as one of the tools.
As a matter of fact, Across Breed EPD's are just the most recent chapter in an ongoing evaluation of breeds and bulls. Astute commercial producers have been "going to school" on …
What Will Happen To Production Traits If We Select For Carcass Traits?, Tom Field
What Will Happen To Production Traits If We Select For Carcass Traits?, Tom Field
Range Beef Cow Symposium
Cow-calf producers find themselves in the unique position of managing an enterprise where profitability is dependent on their ability to hit two targets, the first being the complex of maternal traits as defined by the environmental and management constraints of their individual farm and ranch. The second target is outlined by the demands of the marketplace.
What is the feasibility of accomplishing these two goals within the context of improving profitability by lowering appropriate production costs while avoiding the discounts inherent in commodity pricing schemes? The answer to this question is dependent on a variety of factors, including: the specific …
Improving Vaccine Utilization On The Ranch/Farm, David L. Morris
Improving Vaccine Utilization On The Ranch/Farm, David L. Morris
Range Beef Cow Symposium
Improving vaccine utilization on the ranch or farm begins with a better understanding of common terms used in discussing products or methods used to enhance the animal's ability to prevent or control disease. The following terms and definitions are presented for that reason.
Calf Scours: Prevention And Treatment, Franklyn Garry
Calf Scours: Prevention And Treatment, Franklyn Garry
Range Beef Cow Symposium
There are numerous causes of disease and death in nursing beef calves. Within the first several days of life, the leading causes of beef calf disease are metabolic and behavioral problems, many of which are the direct or indirect result of dystocia. Thereafter, the most common calfhood problems are infectious diseases. Infections of the respiratory and gastrointestinal system account for the overwhelming majority of calf disease and death in the United States. Gastrointestinal diseases tend to be most common within the first month of life, while the respiratory diseases tend to be more important after that time.
There are numerous …
Problems Handling Dystocia, Robert G. Mortimer
Problems Handling Dystocia, Robert G. Mortimer
Range Beef Cow Symposium
The recognition of abnormal calving (dystocia) comes FIRST from a basic understanding of normal calving. From this understanding, the establishment of guidelines for observation of cattle and for intervention will reduce calf losses . In Colorado, as part of a pilot program of the National Animal Health Monitoring System (NAHMS), two-thirds of the costs of disease losses were associated with death loss. From a subset of 73 of the 86 NAHMS herds in studied in 1986-87 in 24,396 births, 4.5% of the calves were lost. Of the 4.5% losses, 34% were attributed to dystocia related losses. In addition, losses attributed …
The Mayfly Newsletter, Peter M. Grant
The Mayfly Newsletter, Peter M. Grant
The Mayfly Newsletter
The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.
Pine Siskins In Breeding Condition Along The North Platte River, Keith County, Nebraska, 1993, William C. Scharf, W. John Berigan, Josef Kren
Pine Siskins In Breeding Condition Along The North Platte River, Keith County, Nebraska, 1993, William C. Scharf, W. John Berigan, Josef Kren
Nebraska Bird Review
Johnsgard (1979) categorizes the Pine Siskin (Carduelis pinus) as an erratic breeder in a number of eastern and southeastern Nebraska counties. Ducey (1988) considers this species to be a regular nester throughout the state in suitable coniferous habitat. Neither authors have listed breeding records in Keith County, although Ducey cites a record from Chase County (Bennett 1986). The Pine Siskin is known as a breeder in 12 counties in Kansas (Thompson and Ely 1992).
Methods
We caught and banded Pine Siskins at Cedar Point Biological Station near Lake Keystone, Keith County, Nebraska (41° 13' N, 101° 38' W) …