The Biology and Culture of Tilapias
species to be hybridized mean similar spawninghehavior resulting in increased spawns and hybrid fingerlings? Fish culture resear ...
culture research. I want to specifically thank my Brazilian colleagues in fish culture, Amaury B. da Silva, Antonio Carneiro-Sob ...
PULLIN: You have already touched on the problem of compatibility between crosses of different species. What do you think about t ...
HENDERSON: The question is, is the growth improvement which you observe for the hybrids comparable to that for the sex-reversal ...
Plate 1. Phase I of the Rodolpho von Ihering Fish Culture Research Center, Pentecost, Brazil. (Reprinted by kind permission of t ...
Control of Tilapia Reproduction College of Inland Fisheries Central Luzon State University Muaoz, Nueva Ecva, Philippines Presen ...
few hundred eggs to several thousands per spawning. Under pond conditions, precocious breeding and stunting have been reported ( ...
x S. leucostictus (Pruginin 1965) and S. niloticus x S. spilurus niger (Pruginin 1965). Several theories have been proposed to e ...
Table 1. The treatment of tilapia fry with androgens to produce all-male broods (M = methyltestosterone; E = ethynyltestosterone ...
The Use of Predators to Control Recruitment Effective predators on young tilapias include many piscivorous fishes, such as Elops ...
is harvesting before the fish become sexually mature (Swingle 1960). No data are available to evaluate such methods for tilapias ...
Conclusion It is evident that three methods can be used for the control of tilapia reproduction: monosex culture, the use of pre ...
GUERRERO: Our systems are as yet experimental but the production per unit area could probably be improved by using raceways with ...
A Study of the Problems of the Mass Production of Hybrid Tilapia Fry Chief Extension Worker in Fish Culture Ministry of Agricult ...
The production of tilapia fry in spawning ponds depends on three main factors: the spawning frequency of each female in the pare ...
changing environment during their evolution (Fryer and Iles 1972). Lately, the Ein Hamifrats fish farmers (unpublished) have obs ...
Table 1. The spawning frequency and egg production of isolated individual Sarotherodon vulcani females (400-500 g each) studied ...
Out of ten S. aureus females, one spawned 8 times, one 7 times, two 6 times, one 5 times, four 4 times and one 3 times. Out of n ...
Table 8. The spawning frequency and egg production of Sawthewdon niloticus Ghana females in interspecific spawning crosses with ...
in fry production within the replicates of the same group: 93 to 2,981 for the 10: 5 group and 580 to 3,619 for the 6: 3 group. ...
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