Site Details: Kinnaird Mill Trout

Dawnfresh Fish Farm
Kinnaird Mill
Kinnaird
DD9 6TY
Operator: Dawnfresh Farming Ltd
Water type: Freshwater

Fish Health Inspectorate mortality

Date:
08/05/23-12/05/23
Mortality:
27,232
Mortality Rate:
4.81%
Reason given: Human error. Fish pumped into tank without adequate flow.
Human error. Fish pumped into tank without adequate flow.
Inexperienced employee left to perform tas of high responsibility wihtout correct supervision. New procedure put in place that any significant fish handling procedure must require sign off an supervision by a more experienced staff member.
Revised SOP in place to prevent error occurring again. NFA.

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Inspection reports

Case Number: 2021-0434


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Remote inspection undertaken on 21/10/2021 by observed by , a lead assessor and technical assessor as part of a
UKAS assessment. Physical inspection undertaken by on 22/10/2021 observed by a lead assessor and technical assessor as part of a UKAS assessment
No issues with eye fluke. This was historically a problem but no longer an issue due to the installation of a disc filter. The filter manufacturer (Sterner) will be onsite when water temperature drops below 8 degrees and the filter can be turned off. This is to find a way to improve the inspection of the filter without taking it apart allowing for more frequent inspections
Next batch of eggs due in from Spain due to restrictions with eggs from Denmark.
RTFS treated on Tuesday before inspection using florocol, the treatment was reportedly successful. Once out of hatchery the fish often get RTFS at about 5-6g. As fish are vaccinated at 60-120g. Once vaccinated RTFS is no longer an issue. RTFS diagnosed by Pharmaq. A company vet worked for Dawnfresh Farming, but left the week previous to the inspection.
Dawnfresh are looking at replacing the fish vet with an external vet working for FVG.
Gill issues recently. Once fish exposed to river water after living in borehole derived water they get some issues on the gills.
Some amoeba identified on gills. Pharmaq now contracted as fish vet. There is a fish health representative on site that works for Dawnfresh. Cress and florocol used to treat issues. Treatments were reportedly very successful.
Aquatet used to treat peritonitis post vaccination.
All fish sent to Tervine and Loch Etive sites (Etive 2 and 3) for ongrowing
Import dates since last insp: 11/06/19, 15/10/19, 20/11/19, 07/01/20, 31/03/20, 12/05/20, 25/09/20, 16/11/20, 26/01/21,
23/03/21, 21/09/21
Import came in from S.Africa on 25/09/2020 and culled as the triploid rate was not high enough. These eggs were replaced.
270,000 fish culled on site. Not reported to FHI as it was a cull, not a mortality event.
Usually 4 movements on from outside GB in average year.
2020: wk 42 (2.7%) 2020 and wk 46 (6.2%) increased mortality due to egg cull. These were culled after an import from
S.Africa. No signs of disease observed.
2021: wk 25 (4.6%) mortality related to filter blockage, this has been reported to FHI and investigated by FHI and APHA [Original PDF]

Case Number: 2022-0573


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Accompanied and observed by conducting internal FHI Audit. Site water supply for ponds and tanks has been in spate and water was silty with fish returning to feeding after spate. Fish in hatchery in good condition and supplied by borehole water which is at a constant 9oC. The odd fish in the tanks was lethargic and one had a lesion on the flank. These fish are recovering from RTFS and have been treated with Florfenicol. Vaccinating fish against ERM and Furunculosis by injection while on site. Fish were recovering from anaesthetic quickly after handling. Some moribund or sideswimming fish observed in the Nov 2021 batch of fish. Two fish from pond 3 were removed for examination and were found to have stones in the gut.
This was due to having been on starve during the summer of 2022 when water temperatures were above 21oC. One moribund fish from pond 4 was removed and examined but no signs of disease were observed. The site has triple screens, bird nets and an electric fence in place to ensure containment and a disc filter to prevent issues with eye fluke. Predation from birds and otters is experienced and vermin can sometimes be observed at the site although a pest control contract is in place. Ensiled waste is disposed of at a biodigester at Turriff. There have been Florfenicol, Halamid, Cress, Formalin and TMS treatments over the year. Although procedures detail that staff have to consider the health of incoming stocks the minimum health standard was not detailed in the VHWP and was raised with site staff. 3 fish removed and sampled for residue testing. These fish were in good condition and showed no internal signs of disease. [Original PDF]

Case Number: 2023-0123


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Last batch of eggs received on site from Trout Lodge, USA. The stamp section of the health certificate was embossed.
There are 2 standard comp hatches in the hatchery
The hatchery on site takes fish up to about 5g, at which stage they are grown on in the polytunnels and then finally transferred out to the outdoor ponds
Hatchery emptied each summer from July for about 2 months. All facilities are cleaned and disinfected at that time
Disk filter installed which filters water down to 30 microns to combat eye fluke. Reportedly there have been very few incidences of eye fluke on site since the installation of the disk filter. Eye fluke used to be an issue on site.
Almost all ova from Trout Lodge. Manager very happy with survival rate and growth rate post hatch.
Slight increase in mortality in first feed fry starting the week of Christmas 2022 due to suspected RTFS. After treatment with florocol (500 DD withdrawal) the mortality rate was greatly reduced. During this two week event; 7,700 fish at 0.9g were lost.
Company biologist was called and visited the site.
One dead fish observed on site during inspection of facilities
Inspection lead by and observed by . All paperwork completed by [Original PDF]

Case Number: 2024-0010


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Mortality levels (Wk. 26 2023) in the indoor A tanks was elevated to 1.06% (533 fish) in comparison to previous weeks but was not above the reporting level as fish were below 750g mean weight. Fish were diagnosed with bacterial gill disease (BGD). The same group also infected with Rainbow trout fry syndrome (RTFS) and saprolegnia. Fish were treated with formalin, pyceze,
Chloramine T and florocol. Numbers reduced in the following weeks. A later decision was made to cull that batch as a change in plan by the business led to an excess of stock.
Top nets covering outdoor ponds were blown down during the winter storms. No predation issues have arisen as a result of this though. Site are in the process of getting the top nets replaced.
One fish observed with damage to an eye but appeared healthy and swam away when approached. One fish was also observed swimming on it's side. It was removed and examined internally and externally. No clinical signs were observed along with no gross pathology after internal inspection, so no samples were taken. Side swimming in Rainbow trout is not too an uncommon occurrence with the fish behaving and feeding as normal. All other fish were seen shoaling as expected. [Original PDF]

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