Report of the Commissioner for 1875-1876 . carp one or two years fish will arrive in a worn and hungry condition, and must be keptin a tank constructed on purpose for observation, where it has no chanceto bury itself in the mud; here it will sometimes take a little food. Atsuch times I generally make use of boiled barley, or rye flour convertedinto a kind of tough paste by the addition of hot water, and with this 1mix a little loam and rye bread; but I continue the feeding only until I canjudge from the looks of the fish that they have recovered. This methodI followed with the carp whi
Report of the Commissioner for 1875-1876 . carp one or two years fish will arrive in a worn and hungry condition, and must be keptin a tank constructed on purpose for observation, where it has no chanceto bury itself in the mud; here it will sometimes take a little food. Atsuch times I generally make use of boiled barley, or rye flour convertedinto a kind of tough paste by the addition of hot water, and with this 1mix a little loam and rye bread; but I continue the feeding only until I canjudge from the looks of the fish that they have recovered. This methodI followed with the carp which I imported from Europe for the purposeof breeding in the winter of 1876-77. It is a most striking fact thatthe carp, though it does not take any food during this winter-sleep inits natural retreat, does not diminish in weight, while, in the so-called winter-chambers, it does so to a remarkable degree. These winter-chambers are large tanks 1,000 to 5,000 square feet in size or less; they 870 REPORT OF COMMISSIONER OF FISH AND are sometimes walled in with masonry, sometimes they are constructedof wood. Fishes intended for sale are kept in them for a few weeks ormonths during the winter. The carp does not grow in the winter. Warmth alone seems to exer-cise a favorable influence upon it and to promote growth. It only growsin the months of May, June, July, and August, and does not appear tocontinue doing so in September. The slight increasein weight which takesplace during the lat er month seems to grow out of an accumulation offat which is being deposited around the entrails. In ponds which con-tain plenty of food and healthy water, in an ordinary year, the growth andincrease of weight in the year will be represented in figures as follows: Per cent,of growth May June July August September. Total If the weather in the month of May be mild and warm from the be-ginning, a better growth may be expected, amounting, as in June, toabout 30 per centum. This month (May) is de
Size: 1535px × 1628px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorunitedstatescomission, bookcentury1800, bookdecade1870
