Daily Kennebec journal. [microfilm reel] (Augusta, Me.) 1870-1975, 1894-07-07

suits of his Investigations in this line. Much
valuable matter is given in reference to
corn and the several pages devoted to it
conclude with the following summary:
% 1.-The large varieties of corn which
mature in the West and South must be har-
vested in Maine in a very immature condi-
ton, while the smaller Flint varieties may
usually be allowed to stand until maturity.
(2) Under these conditions the smaller
varieties of Flint corn had. when harvested,
much higher percentage of dry matter
than the large immature Dent corn.
(3) The excess of dry matter in the
Maine field corn consisted almost wholly of
nitrogen-free-extract or the Neutrality-suspicious.
part of the plant.
az The dry matter of the large imma-
ture Dent corn contained rs per cent more
protein, 7,9l per cent more fibre and 9.99
per cent less nitrogen-free- extract.
(5) The development of the Flint corn
to maturity caused larger relative produc-
ton of nitrogen-free-extract as compared
with an earlier stage of growth. When in
made up about Al per cent of the dry mat
ter of the plant, but this proportion in
creased to 63 per cent at maturity.
(oJ luc COTu COHldlllSu uluCH
the larger proportion of the more valuable
carbohydrates, the sugars and starch. The
starch especially increased, changing in an
average of four samples from per cent.
to IA per cent. of the dry substance of the
plant.
(7) 1t appears from facts previously
known, and from observations made in con-
nection with these analyses that the dias-
g La 81,
more nearly accurate results than the acid
method.
(8) A material loss of dry matter is
likely to occur when green corn fodder is
slowly dried even under the most favora-
Bile conditions"
The summary of 10 pages devoted to d.
gestion experiments is here given:
% A study of the digestibility of the
whole corn plant shows it to have high
percentage digestibility as compared with
hays and other coarse folders. especially
when allowed to develop to maturity. Of
ten samples of Timothy hay, 81 per cent
of the dry matter has proved to be diges-
tible, while of Flint corn fodder (whole
plant, mature) II per cent was digested.
(2) The mature Flint corn has proved
to be more digestible than the immature
DENT corn, tue TelallOu lOT MI tTldiS VI 1Uu-
der and silage being as 1865.
60 This large difference of digestibility
of the two varieties of corn as harvested in
Maine, is undoubtedly due to the greater
proportion of fiber in the Dent corn and to
the larger relative amount of entirely d.
gestible sugars and starch in mature Flint
corn. This is shown in part by the fact the
excess of digestibility of the latter variety
E.h L.. vx,kr Go
| a. DR.. Stones Investigations of sam
Piles of foods and faces from digestion ex-
pe,iments conducted at this station show
that the pentosans vegetable gums) were
present in all the foods studied, aud were
digested from 45 per cent. to 76 per cent.
DR.. Stone observes that there is good rea-
son for believing that even such portions
of the pentosans as are dissolved in the di-
gestive tract are, after all, not assimilated.
The summary of the chapter on corn as
q silage crop reads of follows:
% The average weight per acre of the
green crops for five years we're; Southern
corn, 4,76l pounds Maine field corn, 49,
269 pounds; difference, II 1872 pounds, or
nearly five and three-fourths tons.
(2) The average dry matter per hun
bred pounds was nearly one-third more in
| tDe Nldlut COfHs tue Ielatl0u+ btibS
Southern corn 1880 pounds; Maine field
corn Is Is pounds, or as 100: 1879.
! {3) The Maine field corn proved to be
more digestibe, the relation for dry matter
being Southern corn, 65; Maine corn, IS.
or as 100: ll2.
g. The average pounds of digestible
dry matter per hundred pounds of green
corn have been: Southern corn, 1926
pounds Maine fell corn, Is so pounds, or
as 100: 1879.
| (5) The average yield of dry matter per
acre has been Southern corn, 5,036
pounds, -extremes, 1904 pounds and p
AIS pounds.
(6) The average yield of digestible dry
matter has been: Southern corn, 1921
pounds,-extremes 3 1923 pounds and 2,102
pounds; Maine' field corn 3,076 pounds
extremes, ,945 pounds and LIS pounds.
Cd The yield of digestible dry matter
has averaged us pounds more per acre with
the Southern corn. To offset this it has
been necessary to handle annually five and
three-fourths tons more weight.
80 The largest as well as the smallest
Weld of digestible dry matter in single
year has been furnished by the Maine field
corn.
The feeding experiments with cows taxes
up many pages and tables and review of
the data warrants the following summary /:
IN Mich cows were fed two rations
differing widely in the amount of protein
which they contained. The hay was the
same in both, also the weight of grain, but
in one the grain consisted wholly of corn
meal while in the other it was made up of
cotton seed, gluten and corn meals in equal
parts. :,
~ Both rations furnished practically
the same amount of digestible material.
The proportion of digestible protein was
nearly twice as great in the mixed grain
ration as in the corn meal ration.
~ The cows did not vary greatly in
body weight, but their general appearance
showed less thrift while being fed the corn
meal ration.
a. The yield of milk from the nitrogen
GUS ration was one-ffth to more than one
third larger that that from the corn meal
ration, the excess ranging with the three