Ainda não temos significados para "artificial propagation".
1Prior to 1885 experiments had been conducted at various points looking to the artificial propagation of the lobster.
2A concise statement is given of the fundamental principles of electricity, and of the means of its artificial propagation.
3He entered with great zeal upon the artificial propagation of brook trout and other fish in connection with Dr. Ackley.
4Under this heading I can think of nothing that appears more appropriate than the subject of the artificial propagation of fish.
5The Report of the U. S. Fish Commission for 1897, on pages 235 and 236, contains the following account of the artificial propagation of lobsters:
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