Friday, October 18, 2019

Breeding of Livebearers..


       Different groups of fishes reproduce in different ways.An understanding of how the various species go about breeding is indispensable to undertake breeding programme.In general the fishes can be divided into two broad categories -Egg layers and Livebearers.
Within this basic grouping, different species have their own ways of ensuring the survival of at least a proportion of their offspring..
                            Livebearers

                Livebearers are fish that bear live young ones.There are two types of Livebearers:ovoviviparous,where the eggs form and hatch within the female before birth; and viviparous,where on eggs are formed, and the young are nourished through an umbilica-like cord or from secretions by the female.Livebearers are often prolific,easily bred species.



(Picture attached from GOOGLE)

                            Spawning tank
               
The live bearing fishes are the easiest of all aquarium fishes to breed; indeed, the only problem usually encountered is that of saving the young from the cannibalism of their parents. Various traps have been designed for the relatively rapid separation of the young from their mother at birth. The most satisfactory arrangement is a screen of mosquito netting on a stainless steel or wooden frame, which can be wedged across the tank so as to confine the female to one end while allowing the young to pass. Despite of all these devices, the more natural method is having plants in abundance to provide shelter for the young, and removing the mother at the easiest chance. The best plants for young Livebearers are masses of Myriophyllum,Ambulia,Nutella,Utricularia,Etc.
                Raising the fry of Livebearers
               
 Livebearers young are quite large, and young fishes can feed on dry or other prepared food straight away.If they are given only prepared food, growth will be poor, but a mixture of live and dry food development. Later it matters much Lee's, although the fishes will still do better with a good proportion of live food. Suitable first live foods are micro worms,newly hatched brine shrimp, shredded earthworms, daphnia,newly hatched mosquito wrigglers or shredded white worms. Suitable dry foods include any fine powder food, such as dried shrimp finely ground,fine cereals, and liver or egg powder.

1 comment:

  1. Extremely useful information which you have shared here. This is a great way to enhance knowledge for us, and also helpful for us. Thankful to you for sharing an article like this.aquatic plants of India

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