The ND 41 is a hybrid between a female Blue tilapia (Oreochromis aureus) of the ND-4 Tilapia family line and a male Blue tilapia (Oreochromis aureus) of the ND-1 Tilapia family line. The ND-4 and the ND-1 are have been created by man through continuous selective breeding and crossing other types of Oreochromis aureus will not produce the same result.
ND41 tilapia comes with four main advantages:
- When a female ND-4 and a male ND-1 of the species Oreochromis aureus breeds, the amount of male offspring in any spawning cycle will be around 98 percent. (The 2 percent female offspring is caused by penetration of foreign fish; without foreign genetic material the batch will contain 100% males.) There will therefore be no need to use hormones to achieve sex reversals in the offspring.
- ND 41 is a fast grower with a growth rate that actually exceeds that of the famous Oreochromis nilotica in the temperature range 22-25 °C (72-77 °F). The growth rate will however be lower than that of Oreochromis nilotica in the temperature range 29-31 °C (84-88 °F).
- The ND41 is calmer than Oreochromis niloticus, a big plus during sorting, sampling, selective harvesting and other forms of handling. Fatalities brought on by handling are normally significantly less frequent in docile fish since they are more cooperative.
- ND-4 and ND-1 tilapia is capable of producing offspring at low temperatures and will engage in mating behaviour at 18 °C (65 °F). When the water temperature reaches 20 °C (68 °F), spawning will be apparent. This is highly beneficial when tilapia is breed outside the tropics and can also be of interest in tropical regions that experience a few months of reduced temperature each year.
ND21 tilapia has the same resilience to Streptococcus infection as pure line Oreochromis niloticus.
1. O. niloticus
2. O. aurea
3. O. mossambicus
4. O. urolepis hornorum
- Pond Culture of Tilapia
- Tank Culture Of Tilapia
- Cage Culture Of Tilapia
- Tilapia & prawn farming
- Before setting up a farm
- Growth rate