The cultivation of microalgae has an important nutritional effect on marine animals. Phytoplankton are the foundation of the marine food chain. Most marine invertebrates rely on microalgae throughout their life cycle. Microalgae can be used in aquaculture hatcheries for larval rearing of fish, shrimp and shellfish, especially for the rearing and nutrient enrichment of rotifers and euphorbia. Microalgae can also be used to perform the widely reported green water technique to improve fry growth, survival and feed feeding, and to develop the immune system, pigmentation and swim bladder function. It has also been reported that green water technology has a positive effect on stabilizing the water quality in aquaculture ponds.
At present, not yet. The technical procedures of animal hatcheries mimic the situation in nature.
A team of marine biologists and chemical engineers, after decades of aquaculture research, generally believes that microalgae such as isochrysis bulbs, phaeodactylum triangular brown finger algae, tetraselmis algae and nanochloropsis micrococcus are best fed by marine economic animal larvae. Each type of algae has its own unique advantages, but none of them can provide a complete diet, so different microalgae need to be mixed to get the best results.
The green water technique is to add microalgae and zooplankton (rotifers, harvest worms, branches, flexors, etc.) to the rearing pond. It generally improves larval survival and growth, while improving the nutritional value of planktonic bait (zooplankton eat microalgae before being eaten to increase nutritional value), improves assimilation efficiency and higher plankton nutritional value (through the effect of algae on the underwater light field).
Micrococcus micrococcus
Taxonomy: Micrococcus is a small single-celled, free-floating green algae, classified as: brown algae phylum; eustigmatophyceae (mesh); monodopsidaceae (section); Nannochoropsis (genus).
Morphology: It has a diameter of about 2 - 4 μm and a spherical shape.
apply:
Suitable for feeding on live zooplankton (rotifers and harvesters, filter-eaters (molluscs and crustacean larvae).
Sources of EPA and ARA. Both are essential for survival and larval development, improving stress and disease resistance.
Rich in vitamins C, E, B12 and B1. Improves the growth and development of fish. Rich in antioxidants. Reduce fish abnormalities.
Important sources of amino acids such as arginine, histidine, isoleucine, leucine, valine, and methionine. Both are fundamental to the growth performance of fish.
High concentration of pigments: astaxanthin, zeaxanthin, cantharidin, chlorophyll a.
Flat algae
Taxonomy: Algae is a single-celled flagellar, classified as: prasinophyta (phylum); pyramimonadales (mesh); platymonadaceae (section); tetraselmis (genus).
Morphology: Characterized by heart-shaped, oval or nearly spherical shapes, ranging from 4 to 8 μm in size.
Ideal for live zooplankton feeding (Rotunda, Harvest worm) and major filter-eating animals (molluscs and crustacean larvae). It is highly recommended for flounder larvae in combination with micrococcus micrococcus and bulbulum algae such as whipped algae.
It is an excellent source of EPA and linoleic acid. Fatty acids necessary for larval development and growth.
Adequate vitamins: A, B1, B2, B6, C, E, niacin, pantothenic acid and folic acid. Increase the success rate of larval development.
Rich in amino acids, it stimulates the feed intake of marine animals. Sources of arginine, lysine and leucine are essential for the growth performance of shrimp.
High concentration of pigments: chlorophyll a, chlorophyll b, lutein, neolutein, xanthin, diatomine, zeaxanthin and β-carotene.
Bulbs and other whiplash algae
This product can also be used in aquariums.
Taxonomy: Bulbophyllum is a golden-yellow marine plant flagellar, classified as: prymnesiophyta (Phylum); prymnesiophyceae (gang); isochrysidales (mesh); isochrysidaceae (section); isochrysis (genus).
Morphology: Cell spherical in shape ranges from 3 to 6 μm in size.
Bulbophyllum and other whip algae are excellent sources of dha and are extremely important for marine fish larvae, the juvenile stages of molluscs and the diet of crustaceans. It is commonly used for the nutrient enrichment of zooplankton (Rotifers and Euphorbia) in standard incubation processes.
Rich in essential vitamins A, B1, B2, B6, C, e, Niacin, Pantothenic Acid, Folic Acid. These vitamins play an important role in the development, growth and vision of the fish.
Rich in amino acids such as leucine, lysine, and alanine, it plays an important role in improving the growth rate of juvenile fish and crustaceans.
Essentially rich pigments: fucoxanthin, lutein, β-carotene, zeaxanthin, xanthoxanthin, chlorophyll a and chlorophyll c2
Triangular brown finger algae
Taxonomy: Brown algae are single-celled brown algae or diatomaceous, classified as: diatom phylum; phaeodactylaceae (section); phaeodactylum (genus).
Morphology: Most cells are spindle-shaped, and some cells are triangular and ovate. Varies in size from 5 to 12 μm.
Ideal for environmental protection rich in live zooplankton (rotifers and euphorbia), molluscs and shrimp larvae feeding.
It is rich in silicates and plays an important role in the formation of exoskeletons.
Provides adequate vitamin content: B12, thiamine and biotin. Required for good appetite, normal digestion, growth, fertility and normal functioning of nerve tissues.
Optimal essential amino acid configuration: leucine, lysine, arginine, aspartic acid, glutamic acid and folic acid.
Rich in a variety of colors: chlorophyll a, c1, c2, α, β-carotene, fucoxanthin, neofloxyflabon, diatoxanthin.