Thiaminase Content of Hikari Jumbo Mysis Shrimp

[vaguelyreeflike]

Is there Thiaminase in Hikari Jumbo Mysis? Or the Okanagan Freshwater Mysis?

Is there a chart of thiaminase contents for crustaceans?

My dwarf fuzzy lion has been loving the jumbo mysis, both our small eels hate it lol.

 

[Randy Holmes-Farley]

I think it highly unlikely anyone has tested these products for that enzyme.

Are you concerned they are suffering thiamine deficiency?

 

[Randy Holmes-Farley]

An more readily answered question might be to ask folks keeping these fish if they thrive long term on various suggested food types.

 

[vaguelyreeflike]

I think it highly unlikely anyone has tested these products for that enzyme.

Are you concerned they are suffering thiamine deficiency?

Our lion has been acting a tad “off” the last week, minimal interest in food, lethargic, and appears to have a few “tears” in his dorsal fin on the edges that are consistent with vitamin deficiencies. I am going to begin giving Vitachem in their food, and Im looking into ordering ThiaminE for them as well.

We unexpectedly lost our Volitan just over a year ago now, the only cause I can come up with was B1 deficiency as he was mostly fed Hikari silversides which I learned were mislabeled after the fact. I just want to avoid this in the future. They get a mix of cooked clam, raw clam, San Francisco Bay silversides, the occasional hikari silverside, plankton, krill and jumbo Mysis. Going to be getting a salmon or cod fillet to dice up for them as well soon

 

[Randy Holmes-Farley]

Sorry, I'm not knowledgeable enough to suggest what specific foods these fish require. But my advice is to focus on the foods others use successfully rather than trying to guess what the problem might be with any specific foods since there are all sorts of differences that may be important.

 

[vaguelyreeflike]

Sorry, I'm not knowledgeable enough to suggest what specific foods these fish require. But my advice is to focus on the foods others use successfully rather than trying to guess what the problem might be with any specific foods since there are all sorts of differences that may be important.

Thank you for your time and advice! I’ve been trying to stick with diets people have success with, I will get more variety! When it doubt, variety is best for any animal it seems.

 

[Jay Hemdal]

Thank you for your time and advice! I’ve been trying to stick with diets people have success with, I will get more variety! When it doubt, variety is best for any animal it seems.

Here is some text I had written about thiaminase:

Thiaminase​

Thiaminase is an enzyme that metabolizes or breaks down thiamine (vitamin B1). In high enough concentrations in food, thiaminase will create thiamin deficient diets in fish. This is a common, yet serious problem with predatory fish that are fed feeder goldfish, as goldfish are very high in thiaminase. Lionfish, piranha and oscars cichlids were commonly fed all-goldfish diets by home aquarists. Health issues in their fish were then very common; fatty liver disease in lionfish, pica in piranha (where they eat each other to try to get more thiamin) and HLLE in oscars. Fresh seafoods known to be high in thiaminase can be supplemented with thiamin. Conversely, aquarists can avoid feeding fresh seafoods known to be high in thiaminase.

The actual impact of thiaminase on a fish’s diet depends on three factors:
What proportion of thiaminase-containing food is fed to the fish
What the concentration of thiaminase is in the food item
How much vitamin B1 is already present in the food


The following is a partial list of seafoods that contain and don’t contain thiaminase:


Species high in thiaminase

Anchovy (Engraulis sp.)

Atlantic herring (Clupea harengus)

Capelin (Mallotus villosus)

Carp (Cyprinus carpio)

Clams (family Veneridae)

Goldfish (Carassius auratus)

Lobster (Homarus americanus)

Menhaden (Brevoortia spp.)

Minnows (Cyprinids)

Mussels (Mytilus spp.)

Rainbow smelt (Osmerus mordax)

Sardine (Harengula spp.)

Scallops (Pecten spp.)

Shrimp and prawns (various species)

Skipjack tuna (Katsuwonus pelamis)

White bass (Morone chrysops)

Yellowfin tuna (Neothunnus macropterus)



Species lower in thiaminase

Atlantic cod (Gadus morhua)

Atlantic hake (Merluccius bilinearis)

Atlantic halibut (Hippoglossus hippoglossus)

Atlantic mackerel (Scomber scombrus)

Atlantic salmon (Salmo salar)

Brown trout (Salmo trutta)

Catfish (Ictalurus and related spp)

Cisco (Coregonus spp.)

Coho salmon (Oncorhynchus kisutch)

Flounder / sole (Pleuronectes and related spp.)

Haddock (Melanogrammus aeglefinus)

Hake (Urophycis spp)

Lake trout (Salvelinus namaycush)

Mullet (Mugilidae spp)

Poecilids (Guppies, platies, mollies)

Pollock/Pollack (Pollachius spp.)

Rainbow trout (Oncorhynchus mykiss)

Tilapia (Oreochromis spp)

Worms (Lumbricus spp)

 

[vaguelyreeflike]

Here is some text I had written about thiaminase:

Thiaminase​

Thiaminase is an enzyme that metabolizes or breaks down thiamine (vitamin B1). In high enough concentrations in food, thiaminase will create thiamin deficient diets in fish. This is a common, yet serious problem with predatory fish that are fed feeder goldfish, as goldfish are very high in thiaminase. Lionfish, piranha and oscars cichlids were commonly fed all-goldfish diets by home aquarists. Health issues in their fish were then very common; fatty liver disease in lionfish, pica in piranha (where they eat each other to try to get more thiamin) and HLLE in oscars. Fresh seafoods known to be high in thiaminase can be supplemented with thiamin. Conversely, aquarists can avoid feeding fresh seafoods known to be high in thiaminase.

The actual impact of thiaminase on a fish’s diet depends on three factors:
What proportion of thiaminase-containing food is fed to the fish
What the concentration of thiaminase is in the food item
How much vitamin B1 is already present in the food


The following is a partial list of seafoods that contain and don’t contain thiaminase:


Species high in thiaminase

Anchovy (Engraulis sp.)

Atlantic herring (Clupea harengus)

Capelin (Mallotus villosus)

Carp (Cyprinus carpio)

Clams (family Veneridae)

Goldfish (Carassius auratus)

Lobster (Homarus americanus)

Menhaden (Brevoortia spp.)

Minnows (Cyprinids)

Mussels (Mytilus spp.)

Rainbow smelt (Osmerus mordax)

Sardine (Harengula spp.)

Scallops (Pecten spp.)

Shrimp and prawns (various species)

Skipjack tuna (Katsuwonus pelamis)

White bass (Morone chrysops)

Yellowfin tuna (Neothunnus macropterus)



Species lower in thiaminase

Atlantic cod (Gadus morhua)

Atlantic hake (Merluccius bilinearis)

Atlantic halibut (Hippoglossus hippoglossus)

Atlantic mackerel (Scomber scombrus)

Atlantic salmon (Salmo salar)

Brown trout (Salmo trutta)

Catfish (Ictalurus and related spp)

Cisco (Coregonus spp.)

Coho salmon (Oncorhynchus kisutch)

Flounder / sole (Pleuronectes and related spp.)

Haddock (Melanogrammus aeglefinus)

Hake (Urophycis spp)

Lake trout (Salvelinus namaycush)

Mullet (Mugilidae spp)

Poecilids (Guppies, platies, mollies)

Pollock/Pollack (Pollachius spp.)

Rainbow trout (Oncorhynchus mykiss)

Tilapia (Oreochromis spp)

Worms (Lumbricus spp)

I found this post a bit ago and have been using it to help with finding good diet options! Its very informative and I have a shopping list going haha