The Stock-Feeder's Manual: the chemistry of food in relation to the breeding and feeding of live stockCameron, Charles Alexander, Sir
Science
The Stock-Feeder's Manual: the chemistry of food in relation to the breeding and feeding of live stock
Cameron, Charles Alexander, Sir
Feeds; Livestock
As the superiority of malt over barley (if such be really the case) must
be chiefly due to the looseness of its texture, which allows the juices
of the stomach to act readily upon it, barley in a cooked state might be
found quite as nutritious: It would not be fair to institute comparisons
between dense hard barley-seeds and the easily soluble malted grains.
During the cooking of barley a portion of the starch is changed into
sugar, but in this case with only an inappreciable waste of nutriment.
When the cooking process is continued for a few hours, a considerable
amount of sugar is formed, and the barley acquires a very sweet flavor.
When the malt for cattle question was under discussion, I made a little
experiment in relation to it, the results of which are perhaps of
sufficient interest to mention:--Two pounds weight of barley-meal were
moistened with warm water; after standing for three hours more water was
added, and sufficient heat applied to cause the fluid to boil. After
fifteen minutes' ebullition, a few ounces of the pasty-like mass which
was produced were removed, thoroughly dried, and on being submitted
to analysis yielded six per cent. of sugar. The addition of a small
quantity of malt to barley undergoing the process of cooking will
rapidly convert the starch into sugar.
Barley is naturally a well-flavored grain, and all kinds of stock eat
it with avidity. It may be rendered still more agreeable if properly
cooked, and this process will, by disintegrating its hard, fibrous
structure, set free its stores of nutriment. I incline strongly to
the opinion that barley, when well boiled, is almost, if not quite,
as digestible as malt.
A serious disadvantage in the use of malt is, that it must be consumed,
it is said, in combination with 10 per cent. of its weight of linseed-meal
or cake. Now, malt is a very laxative food, and so is linseed; and if
the diet of stock were largely made up of these articles the animals
would, sooner or later, suffer from diarrhoea. In such case, then,
the addition of bean-meal, or of some other binding food, would become
necessary, and the compound of malt, linseed, and bean-meal thereby
formed would certainly prove anything but an economical diet.
_Malt Combs._--I should mention that a portion of the nutriment which
the barley loses in malting passes into the radicles, or young roots,
which project from the seeds, and are technically known by the term
"combs," "combings," or "dust." At present these combs are separated
from the malt, but if the latter be intended for feeding purposes this
separation is unnecessary, and in such case the barley will not be so
much deteriorated. The combs, which constitute about 4 per cent. of the
weight of the malt, are sometimes employed as a feeding stuff. I have
made an analysis of malt-combings for the County of Kildare Agricultural
Society, and have obtained the following results:--
100 PARTS CONTAINED--
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