Hai Feng users

[X-Tank]

Years working within the aquaculture may not make me a doctor, but it most certainly allows me to understand most of this a lot better than most doctors would. Humans & farm animals aren't fish, and if you can find a flaw in anythng that I have posted thus far with regards to fish, and the probiotics currently being used with commercial fish food, then please share.

It seems that for some strange reason you want to turn this into some kind of pissing contest?

My point all along was simply that wording such as "Super Immune Substance Added" is nothing more than marketing BS, and in many parts of North America, that type of wording wouldn't even be allowed on a pet food label. In Canada, none of those products listed in that link by Cam would even be allowed in the country.

I agreed "super immune substance" is for marketing, but it's FACT. Until proven otherwise, Vit-E, C, and probiotic serve benefit to immune system.
Just like garlic is used in some fish food and company made a big deal out of it, but still you can not deny its beneficial value to animals.
In term of nature form Vit-C, they are expensive as well as probiotics. Next time when you go to pharmacy, just check out the price. Aquaculture are not using them is probably due to cost and return. For fish hobbyist we can afford a little bit more for our fish.
The OP only questioned "what is super immune substance", again I am giving the FACTS not my opinion.

 

[RD.]

No one is saying that probiotics when used properly cannot have a positive effect on fish. That's not what I have been saying.
Have you actually fully read the comment that I posted in the wee hours of today?

Yes, many raw ingredients used in fish feed contain bioactive compounds, such as garlic, which have been proven to have a probiotic effect on fish.
But unlike "live" micro-organisms there is no guesswork involved. We already understand and know the effect of vitamin c/ascorbic acid/L-ascorbyl-2-polyphosphate in a fishes diet, just as we know that carp/koi require higher levels of vitamin E compared to other species.

But none of that equates to simply adding live micro-organisms willy-nilly to commercial fish food, which IMO for the most part is exactly what is happening. You use the term FACTS, yet you don't have any facts to support what is already taking place within the industry.
How much health benefits does Bacillus subtilis, a gram-positive, aerobic, endospore-forming bacterium offer a fish, even IF its inclusion rate is high enough to support a viable community of "live" micro-organisms all the way through to the expiry date on the label? By assisting the break down of waste in ones filter? Puhleeeze.

Vitamin C, as well as ascorbic acid, are not added to vitamin premixes used in aquaculture as they simply aren't nearly as stable as L-ascorbyl-2-polyphosphate. That doesn't mean that all of the vitamin c found in the various raw ingredients are completely destroyed, they aren't, but if one is going to supplement it's far more effective, and efficient, to utilize the most stable form of C that's available. It's a no brainer, and this is precisely why the vast majority of all pet food manufacturers use this substance in their vitamin premixes.

Hopefully that helps clear all this up for you.

 

[Camphilophus]

So should I feed my fish yogurt?

 

[BIG_ONE]

So should I feed my fish yogurt?

Hahahaha...I like that one.