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Tuesday, May 29, 2012

Javanese Carp ( Lampam Jawa) Breeding



Salam,, Selamat Tengahari..

This morning i have opportunity again to demonstrated how to breed Javanese Carp (Lampam Jawa) to undergraduate student that taken Aquaculture Principe under a lecturer Mr. Rozihan. This type of species i never try it before, then i have no experience to handle it. But i try my best to help the students how to conducted artificial propagation of Javanese Carp. Below is the detail :


1) Broodstock selection

The female will ready to inject when they have these criteria: having protruding papillae, big & smooth stomach. We can confirm the matured male when we applied slightly pressure on the fish stomach and the male will release sperm when they ready. 



2) Hormone Injection

Ovaprim is the right and effective hormone in induce ovulation and spermiation in this species. For female, we can use 0.5 ml/kg of Ovaprim and for male we used half of the dose 0.25 ml/kg Ovaprim. The injection will be 6 -7 hours interval from the injection time to the stripping (ovulation). This morning at 5 am. we already administered the hormone and will be stripped at 11 am. After injection, the male and female breeders will be separated until stripped.

3) Check for readiness

Before we conduct the artificial propagation, we need to check either the fish already ready or not. That mean we need to check the stage of the female eggs. We no need to worry much about the male bcoz they always ready. Applied slightly pressure on the stomach until the small batch of the eggs comes out. They not ready when blood comes out or attached eggs out. The good eggs when they were smooth release and give white or green in colour.

4) Artificial propagation

Now the time to do artificial propagation. The matured female was taken out first and stripped out the eggs into a dry bowl. Please take note: avoid more pressure when the blood out bcoz this blood will disturb the fertilization rate for the eggs. After that take out male and stripped out the milt into the bowl. Mix the eggs and milt using chicken feather for 2-3 mins (Dry method fertilization), then add fresh water (2/3 of the eggs volume) into the bowl then stirred it slowly for 2-3 mins. After finish, to avoid the water in incubator tanks got contaminated, make sure you rinsed the mixture with fresh water to removed debris comes from blood, sperm, protein particle, fat etc. 

5) Incubation

After totally cleaned, the fertilized eggs were transferred into incubator tanks. Make sure the incubator tanks equipped with aeration to give water movement and oxygen to the eggs. The egg take 24 hours to hatch..I taken some sample to my room to observed it closely.




Tomorrow we will see they hatch or not....

To be Continue...



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