Can you feed koi carp bread?

In addition to the basic food, it is possible to occasionally give bread to your koi carp, but you must respect a few rules.

Bread is not really adapted to the nutritional needs of koi carp. Although it contains vegetable proteins (around 9% protein), this contribution remains largely insufficient; in addition, part of these proteins is represented by gluten which is a completely insoluble (and indigestible) protein fraction.

The high concentration of carbohydrates or carbohydrates (around 50%), can also induce metabolic disorders such as hepatic degeneration (excess glycogen).

The vitamin contribution of bread is interesting (vitamins vitamins A, B, C, E) but remains very low compared to specific foods for carp koi.

Wholemeal bread rather than white bread

According to Mark Davies (The great encyclopedia of fascinating koi, Chantecler editions), white bread should be banned because it contains aluminum sulfate, an additive used as a bleaching agent and would be chronically toxic for koi carp.

Sand bread rather than hard bread

Hard bread can cause injuries in the oral cavity. You should therefore favor soft bread or, failing that, first soak the hard bread in water.