Imperial Valley press., 1920-12-11
HEREDITY AND PRODUCTION

telephone
floods the with light seldom stop realize
scientific research has been responsible for these miracles
of modern invention.
Just Bell and Edison, through ceaseess experiment
ing, perfected the telephone and electric light R. R.
Graves who has in charge the experimental breeding work
of the United States Dairy Division is helping solve the
mysteries relating heredty and dairy production
In recent address before the Connecticut Breed Asso
Citations, Mr.. Graves explained:
The many experiments and demonstrations with var-
plants and animals which have proved that the factors
governing hereditary characters transmitted in the
germ plasm, that the production ability of any
hefer granting that she is normally developed depends
upon the combination of factors governing production that
she has derived from each of her parents What the
able to transmit to this heifer depended the
combination of factors that they, turn, derived from
heir parents Does it reasonable if the producing
ability of the ancestry of heifer is unknown, that
tell by looking at that hefer what the combination of
factors governing production in her germ pasm holds forth
for her as producer? tell type? We tell
if she has big roomy barrel big heart grth pliabe
skim well hung, capacious udder, level and the
general breed type But do those points in her conform
alton that she has the combination of factors
that will make her big producer?"
Mr.. Graves says further:
LET US grant however, that in heavy producing cows
of all breeds these general points in conformation
found but these points change proportionaely to the
difference in production of various cows? we find
proportionaey bigger BARREL capacious udder
the sOopounds-ofat than on the 6oopoundsof-fat
cow In addition to these in order to have type we must
have straight back, level rump we'll balanced udder,
we'll filled crops pretty heads, and
"Do not think from this that do not like type | like
to typy we'll anyone, but should
fully consider the extent to which type aids us in select
ing production.
at to that type and production for the
part two different things. A sloping runp is OBJ
ectionable because do not like its appearance and
therefore select breeding animals with level
because it will affect the production of the
mal but because it is unpleasing to look at 1t is
onable many sway back have weak backs but
though back does indicate Weakness it fails
present pleasing appearance the level back.
And these things may be said of the homely heads,
heavy horns, thick necks, hollow and to certain
extent udders Perhaps the best balanced udder will
be the capacious though have all with
ow pendulent udders that had capacity but that
not desirable because of the udders shape and liability
injury.
"Over in India and China the water buffalo is said
be good dairy animal having been known to produce
high 279 pounds fat under their conditions The type
of these animals would not appeal to however, with
their sloping rumps and hump backs short time ago,
! rather noted producing that had very notice
able her back where the thoracc veretebrae and the
splendid producer that showed the popularity in
conformation Three of this did not show the
dip in the back themselves but it noticeable in the
daughters Of of the and also the granddaughter
of This dip in the back detrment to the
appearance Of these animals but question if it had
effect their producing ability
We should breed the beautiful animals that
and that by all give consideration
type in the selection of breeding animals. But in
order breed production must be guided by produc
ton, we must be guided by production records"
Most darymen in Imperial Valley primarily inter-
eed the size Of their checks hence, it that
in this last sentence Mr. Graves has struck the key to in
creased profits ii production records must be guides
order scientifically breed for higher production
cOW-teSng association should the unanimous sup
port Of bi h darymen and business