12 BULLETIN 48, HAWAII AGRICULTURAL EXPERIMENT STATION. 
Fig. 
-Small, three compartment self-feeder. 
ing should be regulated and the feeder set on a large platform to 
prevent waste of feed. 
The V-shaped trough, which is an effective and cheap method 
of feeding garbage, should be made of boards of good quality, 1| or 
2 inches thick. (Fig. 14.) In permanent central hog houses' having 
concrete flooring and concrete or wooden feeding troughs, provision 
should be made for drainage. (Fig. 15.) The bottoms and corners 
of concrete troughs should 
be rounded and the dimen- 
sions should be 1 foot 
wide and 8 inches deep. 
Such troughs may be 
used for water as well as 
for feed. 
A pig creep can be 
formed by placing a small 
self-feeder in the corner 
of the yard and partly 
boarding off that corner 
to keep out the sow. 
Sufficient space should be 
left under the boards to 
enable the young pigs to creep in and feed without disturbance, or 
small openings ma}' be left at each end for this purpose. 
Feeding racks. — Racks for the feeding of all kinds of green forage 
lire valuable means of reducing waste. The sides should be made 
either of 1 by 4 inch wood slats, spaced 1 feet apart, or of heavy 
woven wire hog fencing having approximately 4 by 6 inch meshes. 
Watering devices. — Special attention should be given to watering 
devices for swine. Where it is not practical to utilize the feed 
troughs for the double 
purpose of watering and 
feeding, a patented so- 
called hog drinking foun- 
tain can be used. This 
device consists of a cast- 
iron bowl having three 
connected compartments 
from which three animals 
can drink at the same 
time. The drinking bowl 
has a protected center 
containing a float valve 
that automatically keeps 
it filled with water. 
Since the water is drawn 
under pressure from a pipe line the bowl may be placed anywhere 
that water can be piped. It occupies less than 4 feet square of 
floor space, will accommodate from 50 to 100 full-grown hogs, 
and is accessible to the smallest pig. This device is very economical 
of water. The drinking fountain should be bolted to a concrete 
or plank platform to prevent its being displaced by rooting hogs. 
Such a drinking fountain can be had for about 820 and will likely 
be verv durable. 
-*£gg| 
^S»-* s ■ ""'ItWK 
■Z'" -V " 
-*$£■! 
fc-r - -d&* 
^lll!iis : 
EShu-^^T*- 
»- 
wijP^ 
~*?H? 
..**" 
t( JpK&~- 
f 
•• *m j . 
$M 
- 
Fig. 14.- 
-V-shaped concrete feeding troughs, 
tary and durable. 
Sani- 
