"Yoke sack" comes from the term "yolk sac," and is a membrane that encloses the yolk of an egg.
the feed of their yolk sack
Alevin.
Yolk Sack for Reptiles
that means the chick is dead
The yolk sack.
As soon as the yolk sack is absorbed.
An alevin is a newly hatched fish, especially a salmon.
Not unless there was more than one baby. It is common to see both yolk sack and baby until the placenta forms but if there are not 2 separate heart beats then there is probably only one baby.
i don't think so, like how coold they, they eat the gel that surronds them when they are eggs... Probably, like fish they have a "yolk sack" which is a sack on their belly that is filled with food and nutrients because they cant catch food on their owns because the adults leave or they die. Then when they are older and can catch food their yolk sack goes away and then you can start putting live bugs in there. I also heard that if you have a maskito problam buy like 2 "blue eyes fish" you can get them at your local fish carrying pet store.
The yolk of an egg is not a baby chick. Unless a rooster has feritlized the egg and the egg has been incubated for at leased 3 days. Even if a rooster fertilized the egg it is still quite good to eat if it stays cold. *The yolk is where the chick gets its nutrients. The chick actually develops in the white of the egg.
Yes very good most do not detect heartbeat til 8-10 weeks :D