. Domesticated trout [microform] : how to breed and grow them. Fish culture; Trout; Pisciculture; Truite. I. 58 DOMESTICATED TROUT. or eight inches. This second lower tier of boxes is, however, somewhat objectionable, because whenever the screens of the upper boxes f ,^'f "'='^' °'^ *' water in for any reason disturbed, the lower ones in takin-' the washings from the upper, must suffer. This ' r: be obviated,1t is true, by cutting off the water temporarily, but this, again, is not only dangerous but often inconvenient. It is best, therefore, not to us the water but once in hatching,
. Domesticated trout [microform] : how to breed and grow them. Fish culture; Trout; Pisciculture; Truite. I. 58 DOMESTICATED TROUT. or eight inches. This second lower tier of boxes is, however, somewhat objectionable, because whenever the screens of the upper boxes f ,^'f "'='^' °'^ *' water in for any reason disturbed, the lower ones in takin-' the washings from the upper, must suffer. This ' r: be obviated,1t is true, by cutting off the water temporarily, but this, again, is not only dangerous but often inconvenient. It is best, therefore, not to us the water but once in hatching, ifyou have enough . tdUt can be used twice, if necessary, without great mjun^. Ifyou have plenty of water, I would recommend shorter troughs and more of them. There is no harm m hav- ing Ihem twelve inches wide. I prefer ten or_ eight inches, however. They should be at least six inch s in height in the inside, to guard agamst their running over, from the screens clogging up, and it is desirable to have them still higher, say eight mches, if you mean to keep the young fry in them any considerable time after they hatch. The troughs should be dmded into compartments about one inch deep and fifteen inches long, by nailing charred cleats of the required depth transversely on the bottom of the trough, at regular intervals of fifteen inches. Ihe h^^'d of the trough should be placed just under the distribut- ing spout, from which there should be a fall of a few inches ; the trough should be high enough from the floor if practicable, to be examined by a person stand- ing ' The troughs should be inclined, so that the water will make a gentle ripple over the cleats. A grade having a fall of one and one fourth inches to ten feet will do very well, but be sure to have enough slope to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the or
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherbosto, bookyear1872
