SALMON POISONING DISEASE: RESEARCH ON A POTENTIAL METHOD OF LETHAL CONTROL FOR COYOTES

Salmon poisoning disease (SPD) was tested as a potential method of lethal control for coyotes (Canis latrans). Fresh fish containing the agents for SPD was fed to 72 captive adult coyotes. Coho (Oncorhunchus kisutch) and steel head salmon (Salmo gairdneri) from Oregon hatcheries were the principal species of fish used. Coyotes that ate the fish developed observable signs of SPD in a mean of 8 days. The overall rate of mortality was 50%, and death occurred in a mean of 20 days from consuming fish. Coyotes that died from SPD lost a mean of 32% of their body weight during the course of the disease. Other coyotes were fed preserved fish samples or administered oral or intraperitoneal treatments of lymph node matter from coyotes that died from SPD. In light of the relatively low rate of mortality observed, feeding coyotes fish to cause death from SPD appears to be a method of questionable value for controlling numbers of adult coyotes in areas of livestock production unless fish with a highly virulent strain of the SPD agent can be obtained

Parasites Important to Poultry in Hawai'i and Their Control

Hawai‘i is home both to a commercial poultry industry and to many small rural homesteads that raise chickens for subsistence, hobby, show, or simply for pleasure. The owners of many of these smaller farm flocks have often adopted a free-range type of manage ment. The free-range management is certainly an ac ceptable type of husbandry practice, but there are some special health considerations to keep in mind, especially in the area of parasite control. Free-ranging birds have an increased opportunity to encounter the infective eggs, larvae, and intermediate hosts of parasites that can cause serious debilitating infections. Healthy birds are a prerequisite for success in raising poultry, regardless of the overall goals of the owner. Unhealthy birds result in financial losses in terms of death and treatment costs. It is well documented that diseases and parasites are the cause for millions of dollars of losses to poultry producers each year. Death losses are an obvious loss, but even greater economic losses are associated with decreased growth, egg production, and feed efficiency among the living. Parasites are an important cause of this hidden economic loss. Not all poultry losses can be prevented, but they can be reduced, and the more knowledgeable the producers, the more successful they will be. Prevention and control of parasites is one of the quickest, cheapest, and most dependable methods of increasing production, with no requirements for extra birds or additional feed costs. Only a small increase in labor and materials is required. Important parasites of poultry in Hawai‘i The most common and economically important internal poultry parasites in Hawai‘i include the large roundwor

The determination of the factors related to the pathology of vibriosis in cultured tilapia

Thesis (Ph. D.)--University of Hawaii at Manoa, 1991.Includes bibliographical references (leaves 159-175).Microfiche.xiii, 175 leaves, bound ill. (some col.) 29 c

Bull Power: Examination of Beef Cattle Bulls for Breeding Soundness

The value and methods for breeding soundness evaluation of bull cattle is described, and a scoring system is given

Composted Animal Manures: Precautions and Processing

Compost is made by recycling organic materials such as yard trimmings, wood chips, food scraps, and animal manures in a controlled process. The process employs microorganisms to transform the raw materials so that they are no longer recognizable. Quality compost is thoroughly decomposed and pathogen-free. The possible presence of pathogenic microorganisms in compost is a major challenge for compost producers. Composted animal manures can be used in many beneficial products, but they must be properly processed. The most important conditions with respect to sanitization are: the composting process must be thorough; the composting process must be complete; and, the finished compost must not be reinoculated with pathogens

Salmon poisoning disease: research on a potential method of lethal control for coyotes

Salmon poisoning disease (SPD) was tested as a potential method of lethal control for coyotes (Canis latrans). Fresh fish containing the agents for SPD was fed to 72 captive adult coyotes. Coho (Oncorhunchus kisutch) and steelhead salmon (Salmo gairdneri) from Oregon hatcheries were the principal species of fish used. Coyotes that ate the fish developed observable signs of SPD in a mean of 8 days. The overall rate of mortality was 50%, and death occurred in a mean of 20 days from consuming fish. Coyotes that died from SPD lost a mean of 32% of their body weight during the course of the disease. Other coyotes were fed preserved fish samples or administered oral or intraperitoneal treatments of lymph node matter from coyotes that died from SPD. In light of the relatively low rate of mortality observed, feeding coyotes fish to cause death from SPD appears to be a method of questionable value for controlling numbers of adult coyotes in areas of livestock production unless fish with a highly virulent strain of the SPD agent can be obtained

USE OF RADIO TRANSMITTER IMPLANTS IN WILD CANIDS

Volume: 45Start Page: 567End Page: 57