nutrition content of shrimp...

[channarox]

0 % calcium in shell....

so...what,other than vertebrates,does have calcium in it?
that we feed to our fish.

 

[Druu]

Ikaite is found to be stable in aqueous solution at temperatures below 5 °C and in the shell of frozen shrimps but decomposes on thawing to form anhydrous calcium carbonates.

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[X-Tank]

I am not sure what Ikaite is... but seems like scientists are trying to find out, too.

anhydrous calcium carbonates... even with the name Calcium in the name does not mean they are bio available to use by animals...... they may remain in crystal form and get pooped out...

ie.. there is tons of Iron in spinish, but it is not bio-available to be obsorbed by human...

http://www.cins.ca/aca/ikaite.html

http://en.wikipedia.org/wiki/Ikaite

I am trying to find out that answer myself, too. Very interesting... I haven't been talking to couple of my " supposedly very smart friends.." but so far the answer is still no calcium in shell...

 

[X-Tank]

so...what,other than vertebrates,does have calcium in it?
that we feed to our fish.

When you do frequent water change, there should be calcium in your water source.... at least here in socal... there is abundant calcium and fluoride in water supply, good for your bone and teeth.

 

[Druu]

Calcium carbonate.. that's the same stuff that bivalve shells are made off. Bivalve shells are ground up and fed to egg laying poultry for calcium. (Oyster shells in particular.)

 

[X-Tank]

Calcium carbonate.. that's the same stuff that bivalve shells are made off. Bivalve shells are ground up and fed to egg laying poultry for calcium. (Oyster shells in particular.)

NO....... sea shell, conch, and oyster shells are made of calcium carbonate...

we are talking about shrimp shell.... that's exoskeleton of crustacean.


Calcium content in chitin (Carbohydrate Research)‏
http://www.sciencedirect.com/scienc...421&md5=2aa86383cc3c835fcaf04020930538cf#fig5

you need to register first... , but the conclusion of this scientific article is
"shrimp" shell consist of Chitin 93.2% protein, calcium content measured in the 100 ppm range... only.

I guess my statement of 0% calcium is wrong... but maybe 0.00001% calcium. You definitely get much more calcium from drinking tap water or drink seawater if you are marine animals.

I didn't get all that myself, but with friends' help.

It's good we talk about it coz all good for our fish, right??

 

[redchaser]

Do fish absorb nutrients like calcum directly from water? Because you can look at my shower head and tell that my local water has plenty of calcium in it. A lot of water does, that's why products like C.L.R. sell so well.

 

[X-Tank]

Do fish absorb nutrients like calcum directly from water? Because you can look at my shower head and tell that my local water has plenty of calcium in it. A lot of water does, that's why products like C.L.R. sell so well.

haha..... I am not a marine biologist..., but I do something else for living.

I don't think fish can take up calcium directly from water thru skin or gill.. Only the ionic form of calcium is absorptable.

http://www.aquarium-pond-answers.com/2006/12/how-do-fish-drink.html

I think this link will help you and me.

 

[likestofish]

I didn't say calcium is needed for crustacean... that's why they have exoskeleton.. ( chitin ) made out of protein structure.

I will have to protest this from experience i didnt give my first crawfish any calcium supplements or do anything for the water and eventually the sheel turned very thin and it died. I didnt feed it anything but fish fillets so i think lack of calcium lead to weak shell and death.

 

[X-Tank]

I will have to protest this from experience i didnt give my first crawfish any calcium supplements or do anything for the water and eventually the sheel turned very thin and it died. I didnt feed it anything but fish fillets so i think lack of calcium lead to weak shell and death.

I made that statement BEFORE I read this article

http://www.sciencedirect.com/scienc...421&md5=2aa86383cc3c835fcaf04020930538cf#fig5

Chitin 93.2% protein, calcium content measured in the 100 ppm range.....

I bred Australian red claw before. Their diet were krill pellet and bloodworm. I got 20 females holding eggs for me at some point in 180 tank... with lots of PVC tubes.
I know the importance of calcium during their molting and new shell hardening process...., but the reason I post this thread is to discuss if feeding exclusively shrimp to your fish is sufficient in calcium...

Plus crustacean needs calcium to live healthy does not make them a good Calcium source....the logic is not right.

Well.......... really... the best answer is to do more reading and do more internet research......

I am not here to justify what people want to do with their fish.

Good luck. Thanks.