New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1865-11-04
Propagation Of Trout.

To u. Editor u The N. y Tribune
SIR / have read your article on the artificial
propagation Of trout with muchsnterest. My observa
ton and experience thus far in growing the specified
beauties agree very well, in the main, with what you
have said upon the subject.
have kept record Of the time they commenced
spawning in my ponds and the time the last one came
on the spawning beds to spawn for the last i've years
Two wears. the first trout commenced to spawn on
the Sd Of November and three years Of the time on the
5tb of November.
They do not commence in the streams here TO spawn
ill November aud think you viii find they 90 nov on
Long Island before that time II as early az s1Ppose
thew commence to spawn earlier Sonih tAah Nor'H
L have also kept record Of the spawning OF each
front the time of ncDbation, the temperature OF te
water each day. the time Of the first appearance OF the
trout in the egg. the eyes, motion OF 'ne ou'' he"
and circulation Of tie blood, sc. -
Last Fall took the hTst spawn on sept. rom Two
fine trout 900 in number and placed them IN hatch
ing trough In 81 days saw eyes and arteries pam
average temperature OF water 4os'. Ihey comhenecu
ha ching the 9th of Sepiember time OF lacuOeuo,
20 days. average temperature of water Az 90 per cent
Nov. is-I put in 29oO spawn from six s;nail trout
These showed eyes and arteries in 81 days. average
Temperature Of water 1910 They hached Ia los Gay.
from the time of spawning; average temperature o.
water, 400. -
Dec. 81 put 1000 eggs into the trough from three
| trout. 40
Jan. 23-Could see the eyes and arteries; time AZ
days; water average temperature (not added up!. -,
These eggs commenced Matching ApTl Il time Ia
DAYS; average temperature Of water 390. .
The above have taken as a sample Of the time il
takes the eggs 10 hatch In different degrees O teppeTa
tuTe You will see that each degree colder engtheDs
the time Of incubation 10 days.
Nv have spawned late as the 10Th OF January
never have stopped before the 10th.
The first Matching did commence 10 feed under %
DAYS On the Goth day they showed the first sign Of
eating have not added the average temperature oil
the water during this time but 1t was likely between
$50 and $50, the lowest during the Winter.
As you say the time of Matching and eating depends
upon The temperature OF the water AT 40 OF az they
win hatch in from 40 to 30 days. but are worthless as
they are too immature and tender and small to live
we'll From ACE to 43o is the best temperature Tor en-
tire success have hatehed as high as % per cent OF
the eggs from one and two year old trout Old ones
say from six TO eight years Of age) spawn do not hatch
as we'll and some not at all. 49,
sell my young fry for the stocking of ponds for slOt
per 600 when from two TO four inches long. But
never intended to sell trout when commenced only
10 test the growing OF them aItihciaiy Tor my own
qualification
am satisfied that they can be bred TO any extent in
proper water and with the right care the most diff
emit time being about the time they commence 10 feed
then without great care they may die.
have one sad fact 10 tell in the end, and this 49, that
lost year ago last Summer LOCO trout that weighed
from one 10 three pounds each All died with the con
gestion Of the gills, caused by the warmth and I'M
purties Of the water he temperature rose as hIgn
trout do well the water must be below 6i'-best ten
peratnre from $40 TO SO during Summer Ia such water
front will grow to large size but IL water from w u
So they will not live long If large
This all growers Of front should know in the com
mencement and build the size Of their ponds accord
iDgy they have but litle water, then their ponds
should be small to have the water changed Often
Or cover thep with house or boards during warm
weather in Summer Respectfully yours,
STEPHEN ii. ANswORTTH.
Wea Bloomfield, ~ y. Oct 10. 1865.