How to manage Hydrogen Sulfide in shrimp ponds

How to manage Hydrogen Sulfide in shrimp ponds

  Hydrogen sulfide (H2S), which can form in pond bottom sediment, is toxic to aquatic animals because it interferes with the cytochrome a3’s reabsorption during respiration. The main practices to minimize the risk of toxicity of hydrogen sulfide are careful feeding to avoid wasted wastewater at the bottom of ponds, aeration to avoid low dissolved oxygen levels and create a stream of water with additional oxygen. Across the interface between land and water, liming to…

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Astaxanthin and its role in shrimp farming

One of the functions of carotenoid pigments in aquatic animal feeds is to color the animal. The carotenoid present in meat and shrimp shells is Astaxanthin. 1. FeaturesAstaxanthin (C40H52O4) is a red, fat soluble carotenoid. A group of pigments that are present in some algae, yeasts and fish (shrimp, salmon), giving yellow, orange or red muscle, skin, and eggs. An antioxidant that prevents the formation of hydrogen atoms from unsaturated fatty acids.To produce astaxanthin, it…

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The dried fish of Japan

Dried and processed food is an important part of the culture of traditional Japanese food in centuries; its legacy continues to the present day. These foods are called kanbutsu, and in this post we talk to three types of fish products of universal application. Nowadays, we often hear about the wings compliment the prepared foods and noodle in the culture of “fast food”. But behind, the “slow” foods never loses its appeal: kanbutsu is an…

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The effect of lime on filtering the effect of lime shrimp filtering ponds

The effect of lime on filtering the effect of lime shrimp filtering ponds

According to aquaculture experts, the loading of lime into ponds – lagoons has many effects: to make pond mud have a loose texture, improve the air condition at the bottom, and accelerate the resolution process. organic matter in ponds, releasing N, P, K in mud, increasing nutrition; keep the pH stable. Lime directly kills harmful organisms such as frog eggs, tadpoles, insects, snails, green moss and soft-bodied grasses, some kinds of fish such as perch…

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Arapaima gigas – The king of Amazon river

Please tell to someone about an enormous river fish which is on the menu, they will want to see how it looks right now. Good luck, let the chef from introduced species of fish to walrus less known, the majority have a telephone handset. “Many people took out the phone and Google immediately. It is also the species of the fish looks so pretty anymore, “Shaw Longs, Chef of restaurant Lukabu in Thiene said that. Arapaima gigas, freshwater fish…

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