Site Details: Lochailort Recirculation Hatchery

Lochailort
Inverness-shire
PH38 4LZ
Operator: Mowi Scotland Ltd
Water type: Freshwater

Fish Health Inspectorate mortality

Date:
21/02/22-27/02/22
Mortality:
192,992
Mortality Rate:
6.11%
Reason given: Unviable eggs/alvin - Hatch mortalities
Unviable eggs/alvin - Hatch mortalities
Business correspondent contacted - Bad batch of eggs that have not been hatching well. This is a problem across the board. Additional mortalities have been heavier than usual. This is expected to drop down as hatching continues

Date:
05/12/22-11/12/22
Mortality:
297,980
Mortality Rate:
15.92%
Reason given: Unviable Eggs
Unviable Eggs
Business correspondent contacted for further info. This is the first batch of ova received at Lochailort from AquaGen for season 2023 production. The mortality is due to ova quality, with similar issues experienced throughout 2022 at both our Inchmore and Lochailort hatcheries. A further 3.5 > 4% mortality pre and post hatch is estimated for week 50.

Date:
02/01/23-08/01/23
Mortality:
137,970
Mortality Rate:
9.20%
Reason given: Unviable eggs
Unviable eggs
Site contacted for further information. High count of egg drop outs being seen with the sites most recent Aquagen stock. Histology samples have been taken with no significant results found. Mortality appears to be occuring due to poor egg quaility. FHI to monitor.

Date:
26/06/23-02/07/23
Mortality:
346,226
Mortality Rate:
3.39%
Reason given: Unviable Eggs & Alvin
Unviable Eggs & Alvin
Unviable eggs and Alvin from a poor batch of aquagen stock.
Site contacted for further information, FHI to monitor.

Date:
21/08/23-27/08/23
Mortality:
28,242
Mortality Rate:
1.72%
Reason given:
Fungal infection in the stock, treatments with formalin and cress. Stocks have recovered post treatment .

Source

Inspection reports

Case Number: 2020-0347


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Site generally receives 4 ova intakes per year from Ireland, Iceland and/or Norway. Current stock on site was received in 2 inputs from Iceland on 16/03/2020 and 11/05/2020.
Fish were vaccinated with Alphaject m6 and PD1 in June 2020.
Q1 Parr will be moved off site between January and March 2021 to be ongrown at Loch Lochy and Loch Arkaig.
Site details, mortality records, treatment and medicine records, biosecurity records and results of health surveillance checked by NYL via microsoft teams on 03/09/2020. Remainder of inspection carried out by WJM on 09/09/2020.
All fish on site appeared in good health. No clinical signs of disease noted and no gross pathology observed on internal examination of fish sampled for vmd.
Water temperature taken from site temperature monitoring system for biosecurity reasons. Full ECI inspection carried out but is non-compliant as water temperature currently being held at 14.5oC. [Original PDF]

Case Number: 2021-0233


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Q3s @ 60g being transferred to Loch Garry 29/07 and 30/07/2021.
Mortality:
Q3(2021)- Wk30, 96, 0.03%; Wk29, 115, 0.04%; Wk28, 118, 0.04%; Wk27, 216, 0.02%
Q4(2021)- Wk30, 2926, 0.13%;Wk29, 433, 0.01%; Wk28, 626, 0.02%; Wk27, 640, 0.02%
Q1(2022)- Wk30, 2105, 0.11%; Wk29, 779, 0.04%; Wk28, 1186, 0.06%; Wk27, 1024, 0.05%
Q2(2022)- Wk 30/29/27 counts not conducted weekly as fish were hatching. Wk28, 3137, 0.45%
Fish were inputted from Aquagen (Holywood) and also Kildrummie (Ireland).
Water temperature (site thermometer used for biosecurity reasons):
Q4 (2021)- 14.6 (therefore 30 fish sampled for VHS and IHN).
Q1/2 (2022)- 13.6
Alevins- 6
Cress has been administered multiple times for the various populations. Last treatment date was 04/06/2021.
Fish were being graded at the time of the inspection. Couple of associated mortalities were observed.
Remote inspection completed by , observed by on 28/07/2021. Site inspection conducted by , observed by on 03/08/2021.
VMD sampling conducted by and supervised by . 30 fish sample: pool 1 conducted by and pool 2-6 conducted by , observed by . [Original PDF]

Case Number: 2021-0507


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Remote inspection done by , supervised by on 15/11/2021
Stock Origin - Aquagen Holywood
VMD samples collected by , supervised by on 24/11/2021. All fish sampled looked healthy.
Low numbers of mortalities observed in some tanks, no moribund fish observed on site. The fish for the VMD were killed using
TMS and sampled by , supervised by . [Original PDF]

Case Number: 2022-0151


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Currently stocked: Hatchery split into 4 sections, currently 3 sections stocked. 20 tanks in the fry unit, 4 in the Parr Unit and 4 tanks in Smolt Unit 2.
Q3 & Q4 affected by issues with external supplier for feed. This caused mortality, but not above the reporting level. External supplier investigating issue with the feed. No obvious detectable issues with the feed.
Water temperature different across the site. Hatchery 2: 4C, Hatchery 3&4: 6C Fry Unit 14C, Parr and Smolt 1 & 2: 15C, site thermometer used for biosecurity.
Fish samples for VMD, were not in withdrawal at time of sampling. Aquacen and Cress treatments used in the First feed Unit.
Current plan: 4th July starting to put out fish to FW loch sites.
Some trays in the hatchery showed a number of failed eggs (these were seen prior to picking), at the time of visit in the process of picking trays in the hatchery. The remaining tanks that were stocked on site fish appeared healthy. Manager remarked that eggs from Ireland in recent years had been of poorer quality, with increased levels of hatch fails.
Paperwork provided 9/5/22-02/06/22. [Original PDF]

Case Number: 2022-0232


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Site inspected in May - fish too small for VMD sampling, site revisited on 28.06.22 for this case to sample fish for VMD before fish leaving site to freshwater loch. [Original PDF]

Case Number: 2023-0067


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Site has been having issues with ova specifically in the Q3 populations received in Nov 2021 and Dec 2022 from Aquagen. In addition, increased mortality was observed in the recent Q1 and Q4 Kindrum Hatchery ova inputs (Ireland). In the highest observed mortality events (15.92% with loss of 297980) salinity baths (2.5pp) were used to separate unviable ova from healthy population, allowing for more efficient sweep during picking.
Water input originates from River Ailort. Each unit in the facility has its own water filtration and disinfection system. The water filtration and disinfection system is composed of sand filters and an ozonation component (treats water at 950milivolts for
~1hr)., Water exchange on the whole site is very minimal and therefore is classed as a recirculation system, with the smolt unit exchanging ~2% per day. In the hatchery one full water exchange occurs per day.
Treatment records show that regular formalin and Cress administered to keep on to of any saprolegniosis observed. Buffodine is used to disinfect eggs upon arrival at the hatchery.
Stock details: hatchery a: 1876370, 544 degree days, 0.1g/alevins, Q4 2023 hatchery b: 1484417, 0.1g/alevins, Q4 2023 hatchery c, 1013841, 0.1g/alevins, Q4 2023 hatchery d: 650000, unhatched. Q1 2024, Ova 440, degree days. Arrived to site on 23/02/2023 from Ireland (Kindrum
Hatchery) fry: 1330585, 1.03g. Q3 2023
Parr unit empty.
Smolt unit: 173119 (minus 13000 due to export on day of inspection), 78g. 3 facilities. Q1 2023
Fish sampled for VMD were observed to be healthy. [Original PDF]

Case Number: 2023-0082


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Accompanied an OV to conduct an export inspection of salmon smolts to France. No issues to note, OV completed and issued the health certificate (MS/2023/0009) following inspection of stock and disinfection certificates.
No issues noted on site at time of inspection, 20 fish removed from Tank 40 and examined. All appeared to be clinically healthy. [Original PDF]

Case Number: 2023-0092


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Accompanied an OV to conduct an export inspection of two separate loads of 13000 salmon smolts for France. No issues to note, OV completed and issued the health certificates (MS/2023/0013 and 0014) following inspection of stock and disinfection certificates. [Original PDF]

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