Table 1
Survival and growth of Chinese carp fingerlings in about a month after introduction into Hlawga ponds
| Pond No. | Species | No. Stocked on 7.10.69 | Rate of Stocking (No. per hectare) | Initial Size | No. Harvested on 3.11.69 | Initial Size | Survival % | ||
| Av.T.L. (cm) | Av.Wt. (g) | Av.T.L. (cm) | Av.Wt. (g) | ||||||
| A3 | Grass carp | 1 030 | 12 875 | 4.8 | 2.7 | 830 2 | 9.9 | 30.0 | 80.6 |
| A4 | Silver carp | 980 | 12 250 | 3.96 | 1.4 | 736 2 | 11.5 | 35.1 | 75.0 |
1 Data taken from the paper “Preliminary observations on the survival and growth of Chinese carps in Burma”
by H. Chaudhuri and U Hla Tin.
2 The figure includes 400 grass carp and 100 silver carp fingerlings removed earlier and transported to Nyaungshwe fish farm.
Table 2
Details of the experiment on combination stocking of Chinese carps - Experiment (a)
| Pond No. | Species | Rate of Stocking No. per hectare | No. Stocked on 3.11.69 | No. Harvested on 5.5.70 | Period of Observation | Survival % | |
| Species | Total | ||||||
| A3 | Grass carp | 2 125 | 3 375 | 170 | 165 | 6 months | 97.0 |
| Silver carp | 1 250 | 100 | 78 | 6 months | 78.0 | ||
| A4 | Grass carp | 1 250 | 5 000 | 100 | 96 | 6 months | 96.0 |
| Silver carp | 3 750 | 300 | 298 | 6 months | 99.3 | ||
| A5 | Grass carp | 1 250 | 3 375 | 100 | 98 | 6 months | 98.0 |
| Silver carp | 2 125 | 170 | 164 | 6 months | 96.5 | ||
Table 3
Monthly growth rate of Chinese carps - Experiment 1
| Month (Date) | Species | Pond No.A3 | Pond No. A4 | Pond No.A5 | |||
| Av.T.L. (cm) | Av.Wt. (g) | Av.T.L. (cm) | Av.Wt. (g) | Av.T.L. (cm) | Av.Wt. (g) | ||
| November (3.11.69) | Grass carp | 9.9 | 30.0 | 9.9 | 30.0 | 9.9 | 30.0 |
| Silver carp | 11.5 | 35.1 | 11.5 | 35.1 | 11.5 | 35.1 | |
| December (3.12.69) | Grass carp | 14.9 | 42.5 | 15.3 | 43.8 | 12.7 | 37.5 |
| Silver carp | 22.1 | 121.7 | 21.5 | 116.7 | 21.2 | 116.7 | |
| January (2.1.70) | Grass carp | 17.8 | 60.0 | 17.9 | 70.0 | 13.4 | 50.0 |
| Silver carp | 25.9 | 200.0 | 23.4 | 135.0 | 23.9 | 150.0 | |
| February (2.1.70) | Grass carp | 20.1 | 125.0 | 23.6 | 170.0 | 17.3 | 75.0 |
| Silver carp | 31.3 | 350.0 | 25.5 | 180.0 | 26.2 | 190.0 | |
| March (9.3.70) | Grass carp | 28.6 | 300.0 | 32.3 | 395.0 | 25.1 | 210.0 |
| Silver carp | 35.4 | 520.0 | 30.4 | 285.0 | 30.7 | 310.0 | |
| April (5.4.70) | Grass carp | 31.4 | 350.0 | 34.5 | 494.0 | 28.3 | 300.0 |
| Silver carp | 38.1 | 605.0 | 31.1 | 315.0 | 33.7 | 355.0 | |
| May (5.5.70) | Grass carp | 35.4 | 520.0 | 37.2 | 650.0 | 33.1 | 470.0 |
| Silver carp | 42.5 | 860.0 | 32.8 | 340.0 | 34.7 | 400.0 | |
Table 4
Production of Chinese carps within a growing period of 6 months - Experiment 2
| Pond No. | Species | Total Weight Harvested (kg) | Total Weight Harvested (kg) | Net Production (kg) | Total Net Production (kg/ha/6m) | |
| per species | Total | |||||
| A3 | Grass carp | 5.1 | 85.8 | 80.7 | 144.3 | 1 803.8 |
| Silver carp | 3.5 | 67.1 | 63.6 | |||
| A4 | Grass carp | 3.0 | 62.4 | 59.4 | 150.2 | 1 877.5 |
| Silver carp | 10.5 | 101.3 | 90.8 | |||
| A5 | Grass carp | 3.0 | 46.1 | 43.1 | 102.7 | 1 283.8 |
| Silver carp | 6.0 | 65.6 | 59.6 | |||
Table 5
Monthly growth rates of Chinese carps - Experiment 2
| Month (Date) | Species | Pond A1 | Pond A2 | Remarks | ||
| Av.T.L. (cm) | Av.Wt. (kg) | Av.T.L. (cm) | Av.Wt (kg). | |||
| May (5.5.70) | Grass carp | 37.3 | 0.66 | 39.2 | 0.74 | Stocking rate is only 375/ha of each species i.e. 750/ha/pond. Survival 100%. The experiments continued for growing the fishes to breeders |
| Silver carp | 42.9 | 0.88 | 42.5 | 0.86 | ||
| June (5.6.70) | Grass carp | 43.6 | 1.05 | 45.4 | 1.3 | |
| Silver carp | 44.7 | 1.08 | 46.2 | 1.2 | ||
| July (5.7.70) | Grass carp | 48.7 | 1.5 | 51.3 | 1.78 | |
| Silver carp | 47.4 | 1.25 | 50.1 | 1.4 | ||
| August (6.8.70) | Grass carp | 53.5 | 1.84 | 56.5 | 2.31 | |
| Silver carp | 50.2 | 1.42 | 54.7 | 1.8 | ||
Table 6
Production of Chinese carps within a growing period of 3 months - Experiment 2
| Pond No. | Species | Total Weight Stocked (kg) | Total Weight Harvested (kg) | Net Production (kg) | Total Net Production | |
| per species | Total | (kg/ha/3m) | ||||
| A1 | Grass carp | 19.7 | 55.2 | 35.5 | 51.7 | 646.3 |
| Silver carp | 26.4 | 42.6 | 16.2 | |||
| A2 | Grass carp | 22.2 | 69.3 | 47.1 | 75.3 | 941.3 |
| Silver carp | 25.8 | 54.1 | 28.2 | |||
