Semi-weekly south Kentuckian. [volume] (Hopkinsville, Ky.) 1883-1889, 1885-01-09
CLUB LIST.
Annlrsis Of Cows Milk.

During the winter quarter of 1880,
ANALYSES were made Of the milk OF forty
two cows kept at the Government Asri-
cultural Institution, GltsneN.n, County |
Dublin, by Charles A. Cameron, nj. d.,
Professor Of Chemistry
The mornings milk and the evening
milk of each COW were annlyzed one
and m examination of the mixed milk q
the forty-two COWS was also mud.
The COWS, it may be monioned, wer
good animals; they had flon one t.
three crosses of the shorthorn breed
They were in the house during the
period of the experiments. Their food
consisted of daily allowance OF fron
eight to ten stones Of pulptd manleels
and turnips, and exhausted grain firm
the brewery, together with from one
half to II stones of hay. Tley were,
therefore, literally fed. 80
In every instance the quantity, oil milk
welded in the morning exec ded the
proportion furnished in the evening. In
two instances the mornings supp y was
three times more abundant, and III very
many cases twice as plentiful. About
eight hours interviewed between the two
milkings.
Thirty out Of the forty-two COWS gave
richer milk in the evening than III the
morning, and eleven cows gave richer
milk in the morning than i'll the even
ing, while the remaining COW milk was
equally good at both milkings Ihe-
average amount of solids in the morn
ing's milk was 1920, and thu evenings
milk 10. IA difference of OBI per cent
The increase in the amount of sold mat
tiers in the evenings milk was que CHIEFLY
to the larger amount OF fats cont ned
in the latter. The amount WIS LIZ or
Oh per cent. over the proportion Is 81
per cent found in the mornings milk
In the case of the mixed mix OF the
forty-two COWS, that yielded III the even,
ing was richer by O.. 56 per cent. OF solid
matter, including 0. A per cent Of fats
The results of the analyses OF the mix
OF these forty-two COWS show that the
mixed milk of well-fed COWS in houses,
in the last quarter of the We r, contains,
when poorest. G., i'll the morning
1890 per cent of solid matter, illcllI l.
ing 40 per cent. of fats. On the ~ ul
November the mixed milk OF eight COWS,
which happened t, be i'll the sam house,
was alyzed. One hundred parts con-
tsined Total solid matters, l3.9lpel
cent; solids, minus fats, 0,7j; fA.s
AIS; ash, 0.72.
The Society of Public Analysts "
Great Britain and ireland hav' ndopte |
as standard for the poorest pure III k
9per cent. of solids minus fit an -
per cent. of fats-a total OF ll.0 pc
cent. of solids. There is hit e doab
that milk containing IS than LID pc
cent. Of solids is watered '.r slammed
The mixed mill Of 100 COWS kept q
the dairy farm of Mr.. L. M. Russell
Perry Square, was found to contain II
the evenings milking 1885 yer cent. {
solids. including AGO per c.lt. OF + I
and 0.72 per cent. of ash. The solll'
minus fats, were 925 per cent. Tn
analysis was made i'll March, 1881.
think there is the Strongest 10.
that milk OH the average contains III
than 10 per cent. of sold matters. Du
ing the last sixteen years l have e>nn
ined IN immense numb of specimen
of this liuuid, and whenever was &c
tain that it was pure, I invariably fonn
it to contain more than II per cent.
solids. l am quite satisfied that Il
milk of Dublin dairy herds contAil
from IS to Is per cent. of soil Is.
As to the method OF analysis, te
grammes OF milk were kept i'll IL shallo
capsule in the water bath at 2l2'
until thoroughly desicca;ed the resid'
showed the amount OF total .sOli III
tiers. The ten grammes dried and pr
verified, were boiled i'll about eigh
cubic centimeters OF ether for sevcl
hours. an upright condenserbeing plac
over the flask containing the ether
prevent a waste of the latter. The eth
containing the milk fats in solution "
filtered "a very small piece OF tilte'l
paper being used) into light tarr
fiask. The ether was distilled of, n
the last traces got rid of by passing
current of hot dry air through the fla
and condenser. The flask aud its fat
contents were then weighed. The amou
of the ash was determined by igniting
n low temperature in a platinum dish
residue obtained by evaporatlng
grammes of the milk to dryness.
1t is perhaps, in part, owing to !
great care taken to extract every partl
of the fat that such high percentages
that ingredient were obtained.
In every instance the amount OF sol
was determined by two independent
periments. Many Of the weighlngs
the fats and ash were repeated.-l
-iI,alySt.