Freezing Brine Shrimp
- Thread starter musho3210
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From the worlds best authority on brine shrimp (artemia) the protein level of Great Salt Lake adults, tank raised is roughly 50 to 62%, dry weight percentages with wild caught running 50 to 69%, again dry weight percentages.
Those figures are for before gut loading which will make them even more nutritious.
That being said, no food should be the only food fed to an inhabitant. Feed many different kinds of food for best results.
CLICK HERE AND SCROLL DOWN TO SECTION 4.4.1, NUTRITIONAL PROPERTIES OF ONGROWN ARTEMIA
One type of brine with a report from a hatchery, show me something that is not biased and we will talk, it is a well known fact brine are nowhere near as good as mysis.
Can you show that this species is the same as what the poster has, or that the poster has raised them in a manner to keep these values???
I'm sure I could find a report somewhere on the web saying that a pinto is better quality than a Benz but we all know that's crap also.
Can you show that this species is the same as what the poster has, or that the poster has raised them in a manner to keep these values???
I'm sure I could find a report somewhere on the web saying that a pinto is better quality than a Benz but we all know that's crap also.
You sure are quick to jump to conclusions. How is that report biased? Where did you get the information that this report was from a hatchery?
Your well known fact is a perpetuated myth passed on for many years.
I'm GUESSING that the myth may have come from packaging on frozen brine for which most packaging lists content based on wet percentages including the packaging fluids the brine are packaged in. For comparison sakes then it would be only fair to take the same dry weight percentages shown by other foods. (like spirulina flake food as soon as it hits the water it absorbs water becoming much much heavier, thereby drastically affecting wet weight percentages.)
The percentages in that report are based on dry weight percentages.
That "biased hatchery" you make reference to, is the Artemia Reference Centre at the University of Ghent. It was written by specialists at that center, for the United Nations article "Manual on the Production and Use of Live Food for Aquaculture", and is posted on the United Nations site.
Brine shrimp from nauplii stage right up to adults are used extensively as an important part of the feeding programs for the aquaculture industry to provide food for our tables. i.e. fish and shrimp and clams.
From the "BACK COVER" link at the bottom of the previously reference link, is this comment that indicates the report while written for places like hatcheries, is not written BY hatcheries.
"The success of any farming operation for fish and shellfish depends upon the availability of a ready supply of larvae or “seed” for on-growing to market size. The cultivation of fish and shellfish larvae under controlled hatchery conditions requires not only the development of specific culture techniques, but in most cases also the production and use of live food organisms as feed for the developing larvae. The present manual reviews and summarizes the latest developments concerning the production and use of the major live food organisms currently employed in larviculture worldwide. It describes the main production techniques as well as their application potential in terms of their nutritional and physical properties and feeding methods. The manual is divided into sections according to the major groups of live food organisms used in aquaculture, namely micro-algae, rotifers, Artemia, natural zooplankton, and copepods, nematodes and trochophores. The document has been prepared to help meet the needs of aquaculture workers of member countries for the synthesis of information in the field of aquaculture nutrition and feed development."
If you go to the main site of the centre, you can see for yourself just how extensive their work is regarding live foods.
The Laboratory of Aquaculture & Artemia Reference Center
There is no BIAS shown in that report thus the only bias shown in my thread would be that of myself, as I have become that way after all the years I've been working with, and learning about brine shrimp (artemia), and, I don't mind admitting it.
I don't know what better source of information one can get for artemia then that LA&RC at the U of G where this work is their full time occupation.
Certainly not the "experts" of the salt water aquarium hobby who definitely are not full time studing on the subject. IMO.
Lastly, as for your "species" remark, the nutrition report states information for Great Salt Lake brine. Great Salt Lake artemia and cysts provide the largest suppy of live brine and cysts in the world. Obviously I can't say the ones purchased were GSL but the odds are in favour of it, and, in the US, the most likely other source would be San Fran brine or cysts which I believe vary little from GSL and, in some specifics the San Fran was a little better as I recall.