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Fish Breeding Methods For The Crucian Carp


Fish farming is carried out at largely in most countries of Asia and Europe. Crucian Carp is one of the freshwater fishes that dwell in the rivers, lakes and reservoirs.  This is a fact sheet provided by the Food and Agriculture Organization of the UN which explains the methods that are adopted for the production of Crucian Carp.

Environmental and biological facts:

Crucian carp are usually sedentary type fishes that naturally propagate in different types of water bodies like lakes, rivers and reservoirs. They are basically omnivores generally feeding on filamentous algae, organic detritus, seeds and pieces of aquatic weeds and small benthic animals. But the larvae or the fry feed usually on zooplankton.

Artificial feed like pelleted feed, by-products from oil extraction and grain processing are also used in aquaculture. The main stimuli for reproduction are water level, rainfall and the temperature changes. The existence of aquatic weeds aids in spawning. They serve as the substrata for the eggs, which are normally adhesive. The average growth rate of a medium sized Crucian Carp is 1.25 kg.

The earthen pond culture is the mainly used system for rearing the Crucian Carp. But even rice paddies are used in countries like China.

Production cycle


Production cycle of Crusian Carp 

Criteria for Pond preparation:

There are certain typical aspects for the preparation of the pond for the reproduction and nursing of Crucian Carp and getting them ready for the end of year carp Sale.

Generally earthen ponds of the size of 1.5-2.0 m deep and 0.07-0.2 ha, are used for farming of the Crucian Carp. Before the Crucian carp is introduced in the ponds, the ponds are treated chemically with quicklime to ensure the elimination of all the harmful organisms that hinder in the process of Carp hatchery. The quicklime that is used usually amounts to 900-1125 kg/ha.

Even the organic fertilizers like the green and the animal manure are used for increasing the biomass of the zooplankton that is the natural food organisms for the carp. These are applied 5-10 days prior to stocking. This also depends on the water temperature. The quantity of the organic manures used may be:

4500 kg/ha for green manure.
3000 kg/ha for animal manure.

However, when both are used, their quantity gets reduced.

Supply of seeds:

The major supply of seed for Crucian carp culture is derived from artificial spawning. There are also natural seeds available in various water bodies that aid in carp culture. Carassius carassius gibelio is the commonly cultured carp. This is produced through the method of gynogenesis with the Xingguo red common carp which is the male and the female Carassius carassius gibelio. All female off-springs provided by the assorted gynogenesis, have a growth rate of 30-40 percent, which is higher than that of the original fish. There are also various other strains and species of Crucian Carp cultured in different parts of China.

Hatching process:

Usually matured and well selected brood stock is released into the spawning ponds, cages or tanks. Providing good substrata of palm leaves, plastic weeds, grass bundles and branches of fine trees, is very important in the water column where the spawning is carried on and the egg attachment takes place. Eggs can also be hatched in earthen ponds after treating them chemically. They require the eggs to be moved and fixed in the water column in the ponds along with the substrata.

Eggs hatch better in running water (jar or raceway). The eggs along with the substrata are merely hanged in the water column. The eggs along with the substrata can also be placed in jars or raceways, for hatching. The adhesiveness in the eggs is removed by blending with the clay solution before stocking. Later, the fry or hatchlings are shifted to the nursery ponds when they become capable to feed actively and swim well.

Sometimes hormonal injections are also given for the synchronous spawning of the fishes. Such hormonal injections are optional only. The fishes spawn well even without using them.


Nursery stage continued on our blog website

Fish breeding specialise in fish breeding and fish farming. http;//www.fish-breeding.com

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Making Instant Carp Baits Easy!

When you need some essential inspiration to liven-up your catch rate (or literally stop those blank sessions in their tracks,) really manipulate fish feeding behaviour by exploiting different aspects of your baits; read on to discover how…

For both winter and summer conditions why not try combining high-attract tiger nut pellets, hemp pellets, bloodworm pellets, spicy shrimp pellets, spirulina and betaine pellets and CSL pellets all together. This provides a very wide range of hugely well proven carp feeding nutritional stimuli and attraction…

You might try adding to this combination a mixture of Minamino, salmon protein, L030 fish protein and betaine HCL, to dampen your pellets and seriously boost their performance and speed their effects. Of course adding this and similar mixtures to expander pellets and shelf-life readymade baits for example is awesome too!

When using readymade shelf-life and freezer baits, why not exploit their matching base mixes offered and make ground baits to your own personal taste. You could boost those attractors and liquids etc that are recommended for your base mixes, and use the mixture as ground baits that will release soluble substances far better and far quicker than conventional boilies and many pellets. Upon introduction this will instantly provide excellent levels of carp attraction into your swim.

Try boosting bait attraction with hydrolysed salmon extract from Carpfishingpellets (online,) green lipped mussel extract, liver powder, blood powder, Robin Red, meat meal, CSL meal, ground crushed hemp, brewers yeast, poultry protein meal, carp pellet powder, betaine and lecithins for instance. Or simply add Ccmoore Red Venom or Feedstim XP, dried shrimps, crushed hemp, lecithins and betaine, to your own homemade boilie base mixes. (Perhaps try these and others to produce your own very unique pastes and ground baits too!)

For those who really like to do their own thing, then perhaps use a mixture of carp pellet powder from Carpfishingpellets as an highly nutritious base, with CSL meal, crushed hemp, predigested fish meal, brewers yeast and betaine, and liquid liver for example; this will really work. The real beauty of making homemade bait is you can control the cost and also the levels of the additives and ingredients that have really significant impacts on fishes systems and responses. Add Talin protein sweetener and liquid intense sweeteners (in a combination,) plus butyric acid, and it will do wonders in boilie, paste, and ground baits etc.

The course texture of tiger nut meal is great for both cold water and warmer water conditions allowing carp attraction substances to disperse outwards very effectively. Using poultry protein meal in baits will hit both carp and big catfish in just the right spots!

If you are worried about binding – why use what everyone seems to use,(i.e. Vitalin,) when carp and cats and all too well aware of its potential dangers now; so use something unique like carp pellet powder in boilies, pastes, method and ground bait mixes. Carp pellets are after all formulated for carp (not dogs,) so which product do you think is more effective and more suitably digestible and usable to carp in getting that all important edge!?

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