Gelatin is a protein known more commonly as collagen. It is the result of processed connective tissues from cows and pigs. This protein contains 20 different and beneficial Amino Acids. Alanine, Arginine, Aspartic Acid, Glutamic Acid, Glycine, Histidine, Proline, Hydroxyproline, Hydroxylysine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Serine, Threonine, Tryptophan, Tyrosine, Valine.
If you check this link:
https://www.mazuri.com/PDF/5C8X.pdf
You can see the nutritional analysis of the Mazuri Gel Diet that I use for my rays. Much of the same beneficials are in gelatin that are in Mazuri. The one caution here is to slowly back off on the amount of gelatin needed to produce a batch. My colleague in the Aquaculture industry warns of fatty liver and kidney ailments if too much protein is given too often for too long a duration. Comparatively what we are giving our rays should not result in these
ailments.
All in all it is important to vary our rays diets as much as possible. This is more practical to do over the course of a year rather then with each individual feeding. Try it, report your experiences, share your thoughts.
Respectfully,
FireMedic.