Devices for Use in Fish Hatcheries And Aquaria
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The pressure of the water of the Vanne is dimin- ished in the sluices of the Trocadero Aquarium b}^ the many separate outflows, and to provide the de- sired currents, 13 of these oxygenators have been in- stalled. The fishes playing in the numerous silvery bubbles which rise from the bottom arouse much ad- miration from the public, and it will be readily be- lieved that the fish are clean and never sluggish.
Small or large, they thrive with this kind of aera- tion, which brings them artificial ...currents of water which they did not find in these same ponds before.
These currents, moreover, do not allow the food given to fall to the bottom when it is sprinkled in. The young fish, some 5 or 6 weeks old, may be seen to catch in passing the small particles of food which the water brings them. The ponds are from 2 to 3 meters deep, from 7 to 8 meters long, and from 2 to 3 meters wide. These oxygenators render great service; it is a hygienic method which ought to be used wherever possible.
This apparatus may be used without disarrangement for the purpose of producing a vacuum in boxes specially prepared for the preservation of food for fishes and even for the shipment of fishes destined for market.
What to read after Devices for Use in Fish Hatcheries And Aquaria?
You can find similar books in the "Read Also" column, or choose other free books by [vincent, Eugène] [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The pressure of the water of the Vanne is dimin- ished in the sluices of the Trocadero Aquarium b}^ the many separate outflows, and to provide the de- sired currents, 13 of these oxygenators have been in- stalled. The fishes playing in the numerous silvery bubbles which rise from the bottom arouse much ad- miration from the public, and it will be readily be- lieved that the fish are clean and never sluggish.
Small or large, they thrive with this kind of aera- tion, which brings them artificial ...currents of water which they did not find in these same ponds before.
These currents, moreover, do not allow the food given to fall to the bottom when it is sprinkled in. The young fish, some 5 or 6 weeks old, may be seen to catch in passing the small particles of food which the water brings them. The ponds are from 2 to 3 meters deep, from 7 to 8 meters long, and from 2 to 3 meters wide. These oxygenators render great service; it is a hygienic method which ought to be used wherever possible.
This apparatus may be used without disarrangement for the purpose of producing a vacuum in boxes specially prepared for the preservation of food for fishes and even for the shipment of fishes destined for market.
What to read after Devices for Use in Fish Hatcheries And Aquaria?
You can find similar books in the "Read Also" column, or choose other free books by [vincent, Eugène] [from Old Catalog] to read onlineMoreLess
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