1358 
The RURAL NEW-YORKER 
August 21, 1!)20 
The 
Teat-cups and 
Udder Pulsator 
The De Laval teat-cups alternately 
draw the milk from the udder and mas¬ 
sage the teats. This change in action 
takes place 45 times a minute and ii reg¬ 
ulated by the udder pulsator. 
The Udder Pulsator is an exclusive, 
patented De Laval feature. As shown 
in the illustration, it is located within a few 
inches of the teats, resulting in positive, 
snappy action of the teat-cups. Every cow is milked in the same way 
every day and the result of this gentle, regular action is maximum production. 
There is only one moving part in the Udder Pulsator—a plain piston— 
requiring no oiling, adjusting or repairing. 
The De Laval teat-cups and Udder Pulsator are a distinct step in 
advance in milker construction, and the success of the De Laval Milker de¬ 
pends to a very great extent upon their functions. 
The De Laval Milker possesses many other new and exclusive features 
that are of inestimable value to the careful dairyman and owner of valuable 
cows. Its action is positive and uniform from day to day, and it is|faster, more 
reliable and more sanitary than any other method of milking. 
Wherever cows are milked the world over, the name “De Laval” stands 
for quality and highest value to the user. The fact that it bears the name 
“De Laval" is a guarantee that it will give the service claimed for it. 
Write to nearest De Laval office for Milker 
Catalog, mentioning number of cows milked 
The De Laval Separator Co. 
165 Broadway 
New York 
29 East Madison Street 
Chicago 
61 Beale Street 
San Francisco 
Live Stock Matters 
By Prof. F. C. Minkler 
Calculating Dairy Rations 
Will you explain to me a rapid method 
of calculating dairy rations? Is there 
any way you can figure a ration by de¬ 
termining the amount of digestible nu¬ 
trients in the ration? A. E. 
New Jersey. 
As a matter of fact there is no short 
cut method of determining rations for 
dairy cows. If you refer to Henry's 
“Feeds and Feeding” you will note that 
the various feeding values are identified 
and likewise the amount of digestible 
dry matter as well as the digestible pro¬ 
tein and carbohydrate feeds ai'e tabulated. 
Feeding standards have been established 
identifying the dry matter as well as the 
amount of materials necessary for cows 
of a certain weight giving a stipulated 
amount of milk per day. If you will fa¬ 
miliarize yourself with these standards 
and then refer to the tables as quoted 
it will he fairly easy for you to deter¬ 
mine a relatively well-balanced ration. 
Three things are important. Remem¬ 
ber that a cow should be fed all of the 
roughage that she will clean up with 
relish. You should find the grain that 
yields you 100 lbs. of digestible carbo¬ 
hydrates at the least cost per cwt; and 
likewise the protein carrier that should 
yield you a pound of protein at the least 
possible cost. Then use common sense 
in combining a mixture that will be 
palatable and attractive to the cow. If 
you have silage this can be treated prac¬ 
tically the same as roughage, aud the 
only s\nfe rule to follow is to allow the 
animal all the silage that she will clean 
up twice daily. So far as grain feeding 
is concerned, the feeding of one pound 
of a well-balanced ration for each three 
pounds of milk produced per day is 
fairly satisfactory. 
Five Cows on Ten Acres 
Would it be possible for me to keep 
five cows on ten acres of ground? What 
would be the best crops to plant I will 
have to buy all feed this year. I have 
stable room and plenty of room in barn 
to store feed. I can get. nine cents a 
quart for milk the year around. I would 
like to know what would be the best 
balanced ration to feed. No pasture, 
only a small meadow for exercise with 
running water. ir. E. A. 
Pennsylvania. 
If the 30 acres of laud in question are 
of average production it ought to be pos¬ 
sible for you to produce the bulk of the 
feed required to feed five cows; however 
it would be economical for you to pur¬ 
chase the bulk of the corn, relying chiefly 
upon the cultivated area to produce for¬ 
age for use during the Winter months, 
and soiling crops for Summer feeding. 
There is nothing that is more productive 
than a mixture of oats and Canada field 
peas to provide green succulence for Slim¬ 
mer feeding. The oats and peas are to 
be mixed in equal measure, and seeded 
at the rate of three bushels per acre; suc¬ 
cessive seedings to be ten days apart 
should be made. It can be used as a 
green forage; it can be allowed to ripen 
and be thrashed as grain and the straw 
used for roughage; or it can be cut when 
the oats are in the milk stage and the 
peas just past the blossom stage and 
cured as hay. 
Of course you realize that there is 
nothing that will produce so many pounds 
of dry matter per acre as will corn; but 
you do not have a silo and would have 
to rely largely upon the green fodder and 
the husked corn for use during the Win¬ 
ter. If the area is seeded for the pro¬ 
duction of Alfalfa or the clovers then 
these crops would fit in very nicely, and 
your rotation would be oats aud peas to 
be used as a green forage crop, and to be 
plowed and seeded with your grass mix¬ 
ture during August or September. The 
area that would be devoted to the grow¬ 
ing of corn could be seeded with rye or 
wheat in the Fall, aud this used as an 
early Spring forage to be followed latei 
with another crop of corn. You would 
have to buy of course your protein feed 
such as oil meal, cottonseed meal and 
gluten. The labor cost would be greater 
where intensive farming is practiced; 
but it is believed that the three crops 
mentioned would serve the best basis to 
work with. 
DoYouWant 
A Silo This 
Year ? 
If you aim to store this 
year’s corn crop, when it’s 
worth most as feed, you 
want a silo on time. 
And if you knew how long 
it takes these days to get 
any kind of an order filled 
—you’d act without delay. 
There’s yet time to order 
and be sure of getting your 
Unadilla 
Silo 
The Unadilla is made in the largest 
factory in the East devoted exclus¬ 
ively to silos. Our stock of lumber 
and steel is ample but we cannot 
control embargoes and freight delays 
that take months where once it was 
a matter of days. 
The famous Unadilla Silo is easy to 
erect quickly, keeps silage perfectly 
and is in use by many thousands of 
dairymen and stockmen. 
Get our 1920 Catalog and prices. 
Act before others fill our factory 
capacity. Be sure of getting your 
silo on time. 
Unadilla Silo Co. 
Box C Unadilla, N. Y. 
PUT THIS CONCRETE 
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Yon can t afford to waste valuable time, 
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mixed by shovela. Get a Sheldon Farm 
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FREE—New 1920 Catalog—FREE 
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Box 675. NEHAWKA f NEB. 
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