Natural, Color, and Vegetal Flake


Amtra presented its new line of PRO feeds during Zoomark 2019; we finally got a sample and we’re ready to do a proper analysis. Let’s see what we found out.

These flake feeds are the outcome of  AMTRA‘s thirty years of experience. They experimented with new methodologies that are as natural as possible, and processed the food at low temperatures.

The three feeds we’re about to present are: Pro Natural, which has the fewest alterations, Pro Color, which has added Garlic and Astaxantina to improve the coloration and the immune defenses of the fish, and Pro Vegetal which is mainly vegetables.

The composition of the feeds AMTRA Pro Natural, Color and Vegetal F

The three feeds, which have quite a few differences in their basic composition, have the follow macroingredients:

Pro Natural F Pro Color F Pro Vegetal F
Worm flour (Tenbrio molitor, Chironomus sp, Lumbricus terrestris, Bombyx mori) Wheat Wheat
Wheat Krill flour Hydrolyzed fish protein
Herring flour Hydrolyzed fish protein Brewer’s yeast
Hydrolyzed fish protein Corn Spirulina
Corn starch Hydrolyzed shrimp protein Corn starch
Potato Seaweed flour Herring flour
Salmon oil Brewer’s yeast Salmon oil
Carob flour Kelp seaweed Chlorella seaweed
Alga Kelp Salmon oil  
Betaglucan from brewer’s yeast Garlic  
  Paprika  

And their interesting nutritional analysis:

  Pro Natural F Pro Color F Pro Vegetal F
Raw proteins 42.7% 44.7% 46%
Raw fats 5.8% 8.7% 5.3%
Raw fiber 1.3% 0.5% 0.7%
Raw ashes 7.9% 8.1% 2.8%
Moisture 6.7% 7.9% 6.3%
Other 35.6% 30.1% 38.9%

As you can see from the chart, the feeds are mainly protein (almost the half of the total), as well as 5% of fats in the Natural and Vegetal, and 9% in the Color. Being a rather caloric feed, it’s better for fish that usually eat smaller fishes or crustaceans; the Color, with more fats, is good also for cold water fish. In Natural and Color the proteins are close to other similar feeds (49.8%), while the fiber is much lower than usual, 0.5 or 1.3 instead of 1.7. On the other hand, Vegetal has a higher number of proteins for a vegetable feed, 46% against the average of 34.5%; the other values are normal, except for the fiber, which is low. The other elements, moisture, ashes, and others, are very low in the Pro Vegetal and higher in Pro Color and Pro Natural.

The vitamins

Let’s see the composition of vitamins, trace elements, and additives:

  Pro Natural F Pro Color F Pro Vegetal F
Vitamin A 25,000 IU/kg 24,700 IU/kg 25,000 IU/kg
Vitamin D3 1,500 IU/kg 11,465 IU/kg 1,500 IU/kg
Vitamin E 100 mg/kg 120 mg/kg 100 mg/kg
Vitamin C 450 mg/kg 79.1 mg/kg 450 mg/kg
L-lysine     480 mg/kg
DL-Methionine     480 mg/kg
Betaine     1.9 g/kg
       

In all the three feeds the Vitamin A is predominant. Vitamin A promotes healthy growth, strengthens the eyesight, defends the skin, and promotes on fertility. Notice also the quantity of amino acids in Amtra Pro Vegetal F.

The Amtra Pro feeds at a close view

In order to compare these feeds with others we’ve analyzed, let’s see how they look in close detail, with our macro 1:1, even if once in water they get wet and assume a different consistency. The attractiveness is good, at least for the Amtra Pro Color F that I used in my aquarium, because it’s the most suitable for marine fish.

The cost

The feeds are sold in jars of 50 grams or 250 ml, at 4,20 euro (about 8.4 cents per gram) for the Pro Natural F, 5,20 euro (about 10.4 cents per gram) for the Pro Color F, 4,5 euro for the Pro Vegetal F (about 9 cents per gram).

If you want more information about fish feeds, here’s our article: fish feeding. [translating by Agnese Poggi]





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