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Articles 18691 - 18720 of 18784
Full-Text Articles in Physical Sciences and Mathematics
Optimum Utilization Of Alfalfa In Horses, Stephen G. Jackson
Optimum Utilization Of Alfalfa In Horses, Stephen G. Jackson
Kentucky Alfalfa and Stored Forage Conference
When considering forage utilization in horses one must consider principally two factors; 1) forage quality and 2) the relationship between voluntary intake of a forage and a particular class of horses nutrient needs.
Optimum Utilization Of Alfalfa In Sheep Rations, G. L.M. Chappell
Optimum Utilization Of Alfalfa In Sheep Rations, G. L.M. Chappell
Kentucky Alfalfa and Stored Forage Conference
The unique qualities of alfalfa as a forage afford the progressive sheep producer many opportunities to develop efficient sheep feeding programs. As a grazed sward, as hay or silage, alfalfa can be utilized in a variety of ways. The following points should be considered in developing programs using alfalfa.
Maximizing Alfalfa Hay In Beef Feeding Programs, W. Roy Burris, Garry D. Lacefield
Maximizing Alfalfa Hay In Beef Feeding Programs, W. Roy Burris, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Beef cattle comprise the largest group of forage and hay users in Kentucky. Because of their ability to utilize large amounts of low quality roughage, they are sometimes relegated to that role exclusively. There are many instances in beef production when alfalfa hay can be utilized because of its high protein content. The value of alfalfa hay in a beef operation can be estimated by the protein and energy that it furnishes.
Maximizing Alfalfa In Dairy Feeding Programs, Dan O. Riddell
Maximizing Alfalfa In Dairy Feeding Programs, Dan O. Riddell
Kentucky Alfalfa and Stored Forage Conference
Alfalfa is an excellent feed for dairy cows. When used properly, alfalfa can help cut cost of production and increase level of production. However, like everything else, the feeding of alfalfa needs to be managed to maximize efficient production. There are three key steps involved in maximizing alfalfa in a dairy feeding program. These are:
- harvest alfalfa at the proper stage of maturity
- know what the alfalfa contains and feed accordingly
- get the alfalfa to the cows that need it.
Hay Quality Evaluation, William C. Templeton Jr.
Hay Quality Evaluation, William C. Templeton Jr.
Kentucky Alfalfa and Stored Forage Conference
During the last few years there have been several developments related to hay quality evaluation and marketing. In this presentation I shall briefly review these and indicate some of the implications for producers, vendors, purchasers and users of alfalfa hay.
Reducing Hay Losses — From Standing Crop Through Storage, Michael Collins
Reducing Hay Losses — From Standing Crop Through Storage, Michael Collins
Kentucky Alfalfa and Stored Forage Conference
Alfalfa management for maximum economic productivity is quite complex. Many factors ranging from cultivar selection and establishment to storage and feeding must be considered. In some cases these factors, yield and quality of a particular cutting of forage for example, are negatively correlated. Following good establishment of an adapted cultivar, cutting management has important effects on forage yield, forage quality, stand persistence, weed encroachment and other important responses. Maturity stage at the time of cutting greatly affects quality. After cutting, hay curing, packaging and storage conditions also affect quality. Clearly, in order to achieve the optimum combination of yield and …
No-Till Alfalfa Establishment, Garry D. Lacefield
No-Till Alfalfa Establishment, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
The topic ''No-till Alfalfa" was discussed at the V Annual Alfalfa Conference this past February in Elizabethtown. At that conference, we reported results of demonstrations that had been conducted along with preliminary results of some of the research underway. In the presentation today, I would like to review some of the opportunities for no-till alfalfa and discuss some additional research results.
Herbicides For Alfalfa Weed Control, William W. Witt
Herbicides For Alfalfa Weed Control, William W. Witt
Kentucky Alfalfa and Stored Forage Conference
Numerous herbicides are available for controlling weeds in pure or mixed stands of alfalfa. In addition, these herbicides can be applied at different times and stages of alfalfa growth -from prior to planting to actively growing alfalfa to dormant applications during the winter. To be confident of achieving the desired weed control, it is important to apply alfalfa herbicides at the proper growth stage and rate.
The following tables contain information pertinent to proper utilization of the herbicides to obtain maximum weed control.
Foreword [1986], Garry D. Lacefield
Foreword [1986], Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
This is the front matter of the proceedings.
An Evaluation Of Visual And Auditory Electronic Devices To Repel Deer, R. Blake Roper, Edward P. Hill
An Evaluation Of Visual And Auditory Electronic Devices To Repel Deer, R. Blake Roper, Edward P. Hill
Wildlife Damage Management Conference
An electronic devicethat emitted auditory and visual stimuli was evaluated for repelling deer from hardwood plantations and soybean fields in Southwest Alabama from February 1976 through March 1978. Repellent effectiveness in hardwood plantations and in soybean fields was determined by comparing browsing damage on areas treated with the repellent stimuli against damage on control areas.
No difference (P < 0.05) was detected in browsing damage between treated and control areas in either hardwood plantations or soybean fields. Browsing damage on soybeans continued when electronic stimuli were combined with electric fences, human scent rags, and periodic shooting, demonstrating the high degree of adaptability of the white-tailed deer as they attempt to utilize an available food supply.
The Role Of State And Wildlife Agencies In Wildlife Damage Control, Charles D. Kelley
The Role Of State And Wildlife Agencies In Wildlife Damage Control, Charles D. Kelley
Wildlife Damage Management Conference
The Alabama Game and Fish Division is responsible for the stewardship of the wildlife and fisheries resources in the state. Within this context and the cooperative efforts with other agencies that have dealings with animal damage, the Division develops, permits, approves and administers control of both game and nongame (except migratory) species of wildlife.
Animal control complaints fall into two major areas - crop damage and nuisance animals. Nuisance animals, with some exceptions, are bats, armadillos, alligators, woodpeckers, snakes, birds that roost or nest in rookeries. Squirrels, bears, rabbits are the cause of both nuisance and crop damage complaints. Deer, …
Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney
Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney
Wildlife Damage Management Conference
In 1984, a postal survey of landowners and managers was conducted in North Carolina concerning the presence of beavers (Castor canadensis) on their property. Major objectives of the survey were to determine: (1) current distribution and relative abundance of beavers in North Carolina, (2) the economic and environmental impacts from an apparently increasing beaver population, and (3) landowner attitudes toward these increasing populations. Of the 1,069 questionnaires returned, data was compiled from 456 landowners (43 percent) who confirmed the presence of beaver activity on their property during 1983. A significant increase in beaver numbers and distribution has occurred …
Relationship Between Seasonal Changes In Forage Quality And Feeding Patterns In Meadow Voles (Microtus Pennsylvanicus), Ronald J. Brooks, Stephan A. Struger
Relationship Between Seasonal Changes In Forage Quality And Feeding Patterns In Meadow Voles (Microtus Pennsylvanicus), Ronald J. Brooks, Stephan A. Struger
Wildlife Damage Management Conference
Forage analyses revealed that mowed orchards provide a relatively high quality forage to meadow voles (Microtus pennsylvanicus), especially in the fall. Mowed forage was characterized by significantly higher protein and moisture content and significantly lower acid and neutral detergent fibre and lignin than forage from an abandoned orchard. Energy and fat were not significantly affected by mowing. However, vole numbers declined markedly in mowed regions in comparison to undisturbed areas. Voles preferred to inhabit areas with dense cover even though vegetative dieback had occurred. Voles did not exhibit any distinct preference for either cracked corn (rodenticide carrier agent) …
Vole Control In The Eastern United States, Richard M. Poche, Robert Sharp
Vole Control In The Eastern United States, Richard M. Poche, Robert Sharp
Wildlife Damage Management Conference
The meadow vole (Microtus pennsylvanicus) and pine vole (M. pinetorum) are major pests in fruit orchards in the eastern U.S. These species damage trees by gnawing the bark or root systems during the winter months, thus, reducing the fruit yield, or in many cases actually killing the trees. Orchard owners generally use an integrated pest management approach involving a combination of methods: (1) cultural practices such as reducing favorable vole habitat, thereby, limiting the carrying capacity, (2) mechanical control through the use of tree guards or trapping techniques, and (3) the use of rodenticides, both acute …
Repellents For Rodents In Conservation-Tillage Agriculture, Ron J. Johnson
Repellents For Rodents In Conservation-Tillage Agriculture, Ron J. Johnson
Wildlife Damage Management Conference
In response to a need for a safe and effective method of reducing rodent damage to newly planted corn in conservation-tillage fields, two chemicals, thiram (tetramethylthiuramdisulfide) and methiocarb (3,5-dimethy l 1-4-[methylthio] phenol methylcarbamate), were coated on untreated seed corn for evaluation as repellents and agents for conditioned aversion. Results of field-enclosure and other studies indicate that 1.25% thiram by weight repels thirteen-lined ground squirrels (Spermophilus tridecemlineatus) and causes no phytotoxicity. Lower thiram rates tested (0.08, 0.4, 0.8%) were ineffective. Methiocarb rates of 2.5 and 5.0% repelled thirteen-lined ground squirrels, but these rates may significantly reduce corn stand counts …
Comparisons Of Strychnine And Zinc Phosphide In Prairie Dog Control, H. Todd Holbrook, Robert M. Timm
Comparisons Of Strychnine And Zinc Phosphide In Prairie Dog Control, H. Todd Holbrook, Robert M. Timm
Wildlife Damage Management Conference
Efficacy and safety are primary considerations in registration and use of toxicants for vertebrate pest control. Strychnine (0.5%) and zinc phosphide (2%) are currently registered by EPA for prairie dog control, but continued registration is uncertain. Two percent zinc phosphide bait has been suspected of producing lower and more erratic results than strychnine bait. In our study in western Nebraska in fall 1984, indices based on changes in burrow activity showed no difference in efficacy (P =0.66) or variability (P= 0.7) of control for strychnine and zinc phosphide, however neither toxicant consistently gave effective control or black-tailed prairie dogs. Costs …
Estimating Cost-Effectiveness Of Controlling Animal Damage To Conifer Seedlings, David S. Decalesta
Estimating Cost-Effectiveness Of Controlling Animal Damage To Conifer Seedlings, David S. Decalesta
Wildlife Damage Management Conference
A model for determining the benefit-cost ratio of controlling damage by vertebrate pests to conifer seedlings requires knowledge of the amount, distribution, and duration of animal damage, reduction in damage associated with control, costs of control, methodology and value of trees at harvest. Because control costs occurring in the present must be compared with savings recovered decades later in the future, the model incorporates procedures for discounting or adjusting future monetary benefits into present net worth valuations. The model allows forest managers to evaluate a wide range of damage costs and savings accruing from use of various control techniques. The …
Deer Damage And Damage Control In Ohio's Nurseries, Orchards, And Christmas Tree Plantings: The Grower's View, Joel D. Scott, Thomas W. Townsend
Deer Damage And Damage Control In Ohio's Nurseries, Orchards, And Christmas Tree Plantings: The Grower's View, Joel D. Scott, Thomas W. Townsend
Wildlife Damage Management Conference
A survey of white-tailed deer (Odocoileus virginianus) damage was conducted among growers (N = 2,236) of fruit, Christmas tree and nursery crops in Ohio; over 81% responded. Damage was reported by 43.1% of Christmas tree growers, 41.3% of orchardists and 32.5% of nurserymen. Most commonly reported by orchardists as damaged were apples (Malus spp.), by Christmas tree growers were white pines (Pinus strobus), and by nurserymen were maples (Acer spp.). Young plants (x̄ = 7.5 years) were more commonly damaged than older plants of all species. Seasonal damage was most common in …
Public Tolerance Of A Suburban Deer Herd: Implications For Control, Daniel J. Decker, Thomas A. Gavin
Public Tolerance Of A Suburban Deer Herd: Implications For Control, Daniel J. Decker, Thomas A. Gavin
Wildlife Damage Management Conference
Suburban deer populations have been increasing in the eastern U.S., resulting in deer-human conflicts that can not always be resolved by a traditional management approach. Professionals responsible for management of deer damage (herd control and extension education) need information on the extent and nature of deer damage in suburban situations. Attitudes of suburban residential property owners about wildlife in general and deer in particular must be identified so that control measures that are socially acceptable as well as biologically feasible can be formulated. People's tolerance of deer damage and their propensity for undertaking on-site preventive measures need to be analyzed. …
Double-Crested Cormorant Damage To A Commercial Fishery In The Apostle Islands, Wisconsin, Scott R. Craven, Esther Lev
Double-Crested Cormorant Damage To A Commercial Fishery In The Apostle Islands, Wisconsin, Scott R. Craven, Esther Lev
Wildlife Damage Management Conference
The endangered classification of the double-crested cormorant (DCC) in Wisconsin resulted in complete protection and significant management efforts in the 1970's. These efforts, probably coupled with reduced pesticide loads, resulted in a resurgence of Wisconsin cormorant populations from a low of 66 pairs in 1972 to 1028 pairs in 1982. The DCC was reclassified as a threatened species in 1982. This apparent success story did not take into consideration the potential negative impact of an abundant piscivorous bird. In 1978 a colony of DCC's became established on a remote rocky island in the Apostle Islands National, Lakeshore, in Lake Superior. …
The Whooping Crane Cross-Fostering Experiment: The Role Of Animal Damage Control, Roderick C. Drewien, Stephen H. Bouffard, Desmond D. Call, Richard A. Wonacott
The Whooping Crane Cross-Fostering Experiment: The Role Of Animal Damage Control, Roderick C. Drewien, Stephen H. Bouffard, Desmond D. Call, Richard A. Wonacott
Wildlife Damage Management Conference
Predator losses of endangered species in reintroduction programs are unacceptable because of the scarcity of the species and the major commitment of staff time and funds. When the whooping crane (Grus americana) cross-fostering experiment (experiment) at Grays Lake National Wildlife Refuge (Grays Lake), Idaho was proposed in 1972, animal damage control (ADC) was considered unnecessary. Sandhill crane (G. canadensis tabida) nest success was high and coyotes (Canis latrans) and red foxes (Vulpes vulpes) were uncommon. Canids increased by the mid-1970's destroying whooping crane eggs and chicks. An ADC program initiated in 1976 …
Commercial Wildlife Pest Control Permits An Alternative Approach, Gerard W. Wendt
Commercial Wildlife Pest Control Permits An Alternative Approach, Gerard W. Wendt
Wildlife Damage Management Conference
No abstract provided.
Role And Responsibilities Of Agencies For Wildlife Damage Control, Hal S. Atkinson Jr.
Role And Responsibilities Of Agencies For Wildlife Damage Control, Hal S. Atkinson Jr.
Wildlife Damage Management Conference
The wildlife resources of the State belong to the people of the state as a whole. The Wildlife Resources Commission is charged with the stewardship of these resources and is empowered by general statute to promulgate those regulations deemed necessary to accomplish this charge.
State Funded Wildlife Damage Programs: The Wisconsin Experience, Scott E. Hygnstrom, Scott R. Craven
State Funded Wildlife Damage Programs: The Wisconsin Experience, Scott E. Hygnstrom, Scott R. Craven
Wildlife Damage Management Conference
Wisconsin has a long tradition of involvement with wildlife damage and wildlife damage programs. It is one of less than a dozen states that presently has a program for wildlife damage. From 1931 to 1980, Wisconsin paid landowners for damage to crops caused by wildlife. Now the focus of Wisconsin's wildlife damage program is on damage control and prevention through appropriate abatement techniques and wildlife population control. This paper will detail Wisconsin's experience with these approaches and will offer insight into improving state funded wildlife damage programs.
Landowner Tolerance Of Beavers: Implications For Damage Management And Control, Ken G. Purdy, Daniel J. Decker, Richard A. Malecki, John C. Proud
Landowner Tolerance Of Beavers: Implications For Damage Management And Control, Ken G. Purdy, Daniel J. Decker, Richard A. Malecki, John C. Proud
Wildlife Damage Management Conference
Management of beaver (Castor canadensis) populations can be an effective way to create wetlands while at the same time producing a valued recreational and furbearer resource. Optimizing beaver populations for such a dual objective, however, requires careful integration of biological and sociological considerations in management planning. Knowledge of beaver population dynamics by itself is insufficient for sound management; human tolerance data also must be included in management decisions to reduce the potential of encountering problems that could impede the attainment of beaver-wetlands management objectives. Expansion of beaver into new areas often may be constrained by managers' perceptions of …
Current Status Of Deer Fencing In The Northeast, Mark R. Ellingwood, Jay B. Mcaninch, Michael J. Fargione
Current Status Of Deer Fencing In The Northeast, Mark R. Ellingwood, Jay B. Mcaninch, Michael J. Fargione
Wildlife Damage Management Conference
The recent development of high tensile electric fencing for controlling deer damage has led to the installation of these fence designs throughout the Northeast. In May 1984, 55 surveys were sent to individuals in 10 states who were known to have recently constructed deer fences. Sixty-seven percent of the surveys were returned and a variety of fence-related data were generated. These include information on deer damage, a general description of fence designs being utilized, information concerning fence voltage, data on fence maintenance and several questions on fence performance, owner satisfaction and the cost/benefits of deer damage control. The majority of …
Dispersal Of A Heron-Egret Rookery, Douglas I. Hall
Dispersal Of A Heron-Egret Rookery, Douglas I. Hall
Wildlife Damage Management Conference
A rookery composed of an estimated 10,000 herons and egrets (family: Ardeidae) located in Van Buren, Crawford County, Arkansas was successfully dispersed in the Spring of 1983. A diversified scaring program was planned and initiated prior to the onset of courtship display and nest building. The roost relocation was subsequently followed by habitat alteration procedures to make the 5-acre stand of primarily Eastern redcedar (Juniperus virginiana) unattractive as a future roosting site. Although no nesting occurred at the site in 1983, the lack of an early scaring program in the Spring of 1984 resulted in the uncleared …
Wildlife Damage Control And The Wildlife Society, Thomas M. Franklin
Wildlife Damage Control And The Wildlife Society, Thomas M. Franklin
Wildlife Damage Management Conference
Wildlife damage control is recognized by The Wildlife Society as an essential and responsible segment of the wildlife profession. At least since 1959, Society committees have addressed elements of wildlife damage control (although wildlife damage control was not always the specific term used).
The Wildlife Society Council first approved an "Animal Damage Control" position statement in 1968. In March 1985, Council updated and renamed it "Wildlife Damage Control" to emphasize our positive approach to this important segment of wildlife management. The official position statement was published in The Wildlifer (May-June 1985) and is reprinted below.
The Effects Of Canada Goose Grazing On Winter Wheat: An Experimental Approach, Hubert A. Allen Jr., David Sammons, Russell Brinsfield, Roland Limpert
The Effects Of Canada Goose Grazing On Winter Wheat: An Experimental Approach, Hubert A. Allen Jr., David Sammons, Russell Brinsfield, Roland Limpert
Wildlife Damage Management Conference
The effects of grazing winter wheat (Triticum aestivum) by Canada geese (Branta canadensis) was assessed in 3 fields during 2 years of experimentation at the Wye Research and Education Center, Queenstown, Maryland. Randomly placed wire enclosures prevented goose grazing on 11.1 m sq. control plots. Grazed plots were marked in each field soon after the geese migrated in March. Grazed plots had consistently lower yields than ungrazed plots with mean differences ranging from 0-13%. The differences were related to the intensity of grazing. Other parameters, including mean weight per seed, mean number of seeds per spike, …
Apparent Efficacy Of Bird Aircraft Strike Hazard Programs At Four Naval Air Stations, Thomas C. Walker, C. Willard Bennett
Apparent Efficacy Of Bird Aircraft Strike Hazard Programs At Four Naval Air Stations, Thomas C. Walker, C. Willard Bennett
Wildlife Damage Management Conference
The Department of the Navy implemented its present mandatory bird-aircraft strike reporting system in 1981. Reported bird-aircraft strikes have increased each year presumably due to increased awareness and compliance with regulations. Four Naval air stations implementing bird-aircraft strike hazard reduction programs in 1984 reported 57-78% fewer strikes in 1984 than in 1983.