51 results

BCA: diagnosis and identification of Aeromonas salmonicida and detection of latent infections in carrier fish

Project number: 1995-060.80
Project Status:
Completed
Budget expenditure: $5,272.01
Principal Investigator: Patrick Hone
Organisation: CSIRO Australian Animal Health Laboratory
Project start/end date: 26 Sep 2001 - 28 Sep 2001
Contact:
FRDC

Objectives

1. Undertake molecular characterisation of a range of exotic and endemic A.salmonicida subspecies including correlation with biochemical, serological and pathogenic features.
2. Identify genus -, species - and subspecies-specific properties such as nucleotide sequences with potential for diagnostic use.
3. Develop diagnostic procedures using molecular technology.
4. Validation of molecular diagnostic procedures using experimental infections carried out in the microbiologically secure aquarium facility at AAHL.
5. Preliminary survey of wild and farmed papulations of fish and shellfish in S.E. Australia in collaboration with NSW, South Australia, Tasmania and Victoria

Final report

Final Report • 286.81 KB
1995-060.80-DLD.pdf

Summary

The following two projects were selected by the FRDC for ex-post cost/benefit analysis:

1993-128: Development of molecular probes for use in bacterial disease diagnosis and health monitoring of farmed wild finfish in Australia undertaken by the Department of Primary Industries, Tasmania.

1995-060: Diagnosis and Identification of Aeromonas salmonicida and Detection of Latent Infections in Carrier Fish undertaken by CSIRO Australian Animal Health Laboratory.

Both projects are concerned with the development and application of molecular diagnostic techniques for the rapid identification of bacterial fish pathogens for salmonids, and for this reason a combined ex-post cost/benefit analysis was undertaken.

Environment
People

Aquatic disease preparedness assessment

Project number: 1995-087
Project Status:
Completed
Budget expenditure: $12,418.00
Principal Investigator: Mark S. Crane
Organisation: CSIRO Australian Animal Health Laboratory
Project start/end date: 20 Nov 1995 - 22 Jun 1998
Contact:
FRDC

Objectives

1. To assess the current fish disease legislation in each state, territory and New Zealand
2. To recommend improvements in the current legislation and lines of command in the event of a serious fish disease outbreak
3. To determine the requirement for chemicals/vaccines for use during a fish disease outbreak

Final report

ISBN: 0-643-06292-0
Author: Mark S. Crane and Grant T. Rawlin
Final Report • 1997-10-22 • 1.45 MB
1995-087-DLD.pdf

Summary

Prior to the initiation of this project, it was recognised that while State/Territory, as well as Commonwealth, legislation is well-developed for the management of traditional stock animal diseases, legislation has not addressed adequately issues concerning aquatic animal diseases and their control. Thus animal health policy makers established a working party to assess the effectiveness of State/Territory aquatic animal disease legislation in the face of hypothetical, severe fisheries disease outbreaks in public waters, aquaculture sites, in finfish and in aquatic invertebrates.

Accordingly, the Working Party visited each State/Territory to discuss with those officials responsible for managing aquatic animal disease outbreaks, the current status of State legislation, whether the legislation is appropriate and whether the State has adequate resources and legislative support to manage effectively aquatic animal disease emergencies. In this way the strengths and weaknesses of each State/Territory with regard to aquatic animal disease preparedness were identified for further consideration by the local authorities. Over the past two years significant progress on aquatic animal health policy development at the Commonwealth and State/Territory levels has been made and is outlined in this report.

Major outcomes of the project include a significant raising of the profile of aquatic animal disease. At both State/Territory and Commonwealth levels the issue of aquatic animal disease, even in the face of the emergence of newer fisheries industries and a growth in fisheries production, had attracted relatively little attention and hence few resources. During the course of the project, there have been interaction with other projects and activities, coordinated by the Department of Primary Industries and Energy, which has had a synergistic effect on the progress of the issue. Recently, there has been very significant progress on aquatic animal health policy development at State/Territory and Commonwealth Government levels.

In the majority of States/Territories, either new or revised legislation has been enacted, is currently being enacted or current legislation is being reviewed to determine whether revised/new legislation is required. Thus, most of the States/Territories have addressed, or are addressing, the legislative issue.

In addition to ensuring appropriate legislation is in place, each State/Territory is responsible for ensuring the legislation is invoked as needed and effective management of aquatic animal disease emergencies is undertaken. Regardless of the scale of the incident the State/Territory should be notified, and should then make an assessment of appropriate action, ensuring that such action is in accordance with national policy.

Management of an aquatic animal disease emergency will require a collaborative approach and will, primarily, involve expertise in aquatic animal biology and aquaculture systems which would normally reside in State Departments of Fisheries or the equivalent, as well as expertise in animal diseases and epizootiology normally available from State Departments of Agriculture or the equivalent. In some cases, this expertise resides within one department (e.g. Departments of Primary Industries and Fisheries) and coordination of the response presents little difficulty. In other cases, the expertise is not centralised and coordination of the response becomes a more complex issue.

A major achievement, clearly evident, was the bringing together of the principal decision makers required in the event of an aquatic animal disease emergency. In some States/Territories these meetings represented the first instance in which this had occurred for the purposes of aquatic animal disease emergency contingency planning. Hence, together with the respective roles and responsibilities, important linkages were immediately put in place which later formed the basis for development of an action plan. In each State/Territory, a theoretical scenario, an aquatic animal disease emergency relevant to the particular State/Territory, was presented and worked through to its conclusion. This illustrated the resources, responsibilities and roles required for effective management of the emergency.

Environment
PROJECT NUMBER • 2019-176
PROJECT STATUS:
COMPLETED

NCCP: Determination of the susceptibility of silver perch, Murray cod and rainbow trout to infection with CyHV-3

This research sought to build on the experimental evidence regarding non-target species susceptibility to CyHV-3. Three species which had been previously tested, but for which additional evidence would be needed to confirm non-susceptibility included Rainbow Trout, Silver Perch and Murray Cod. 
ORGANISATION:
CSIRO Australian Animal Health Laboratory
Environment
PROJECT NUMBER • 2004-217
PROJECT STATUS:
COMPLETED

Aquafin CRC - Atlantic Salmon Aquaculture Subprogram: development of an AGD vaccine: phase II

Amoebic gill disease (AGD) is considered to be the most significant health problem for farmed Atlantic salmon in Tasmania, costing the industry an estimated $15-20 million pa. It is caused by the presence of Neoparamoeba spp. on the gills and if untreated can lead to death. Although some control of...
ORGANISATION:
CSIRO Australian Animal Health Laboratory
Environment
PROJECT NUMBER • 2017-135
PROJECT STATUS:
COMPLETED

NCCP: essential studies on cyprinid herpesvirus 3 (CyHV-3) prior to release of the virus in Australian waters

This project, undertaken by CSIRO, aimed to determine the most important form of transmission of CyHV-3 to Cyprinus carpio (common carp). This was addressed through experiments to determine: (1) The relative amounts of virus in the skin and mucus of infected fish vs shed...
ORGANISATION:
CSIRO Australian Animal Health Laboratory

BCA - National diagnostic tests for the detection of Epizootic haematopoietic necrosis virus (EHNV) and certification of EHNV-free fish

Project number: 1992-066.80
Project Status:
Completed
Budget expenditure: $4,394.73
Principal Investigator: Gerry Geen
Organisation: CSIRO Australian Animal Health Laboratory
Project start/end date: 30 Oct 2000 - 1 Jan 2009
Contact:
FRDC

Objectives

1. Select optimum EHNV detection protocols and establish these as national tests
2. Investigate the use of inactivated antigen in antigen capture ELISAs which would facilitate the distribution of the diagnostic tests
3. Use diagnostic tests to determine the minimum sampling sizes and types of samples required for disease-free certification of commercial stocks
4. Optimise immunological tests that detect EHNV and anti-EHNV antibodies, from field animals
5. Identify tissues/organs within host organisms where the virus replicates
6. Differentiate the major strains of Australian iridoviruses

National diagnostic tests for the detection of Epizootic haematopoietic necrosis virus (EHNV) and certification of EHNV-free fish

Project number: 1992-066
Project Status:
Completed
Budget expenditure: $367,578.00
Principal Investigator: Alex Hyatt
Organisation: CSIRO Australian Animal Health Laboratory
Project start/end date: 8 Feb 1993 - 20 Nov 1996
Contact:
FRDC

Objectives

1. Select optimum EHNV detection protocols and establish these as national tests
2. Investigate the use of inactivated antigen in antigen capture ELISAs which would facilitate the distribution of the diagnostic tests
3. Use diagnostic tests to determine the minimum sampling sizes and types of samples required for disease-free certification of commercial stocks
4. Optimise immunological tests that detect EHNV and anti-EHNV antibodies, from field animals
5. Identify tissues/organs within host organisms where the virus replicates
6. Differentiate the major strains of Australian iridoviruses
Environment
PROJECT NUMBER • 2019-163
PROJECT STATUS:
COMPLETED

NCCP: Understanding the genetics and genomics of carp strains and susceptibility to CyHV-3

To assess the risk that rapid resistance to CyHV-3 might develop, we undertook an extension to the integrated modelling with the objectives of defining what exactly is “resistance” in the context of viral biocontrol, and to elucidate the mechanisms (pathways) by which it might develop....
ORGANISATION:
CSIRO Australian Animal Health Laboratory
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