Feeding Experiments With Lambs 
7 
SECOND SERIES, 1909-10 
The following table gives the necessary data: 
FEED FOR GAIN AND COST OF GAIN. 1909-10 
(125 Lambs in Lot) 
Cost of feed 
per 
Average Gain Lbs. feed for 100 lbs. gain 100 lbs. gain 
per head 14 weeks 
t - 
A 
A 
^ r 
' A 
Ration 
(lbs.) 
Alfalfa hay 
Corn 
Barley A 
B 
Lot I Barley, Alfalfa Hay 
(whole 
in self feeder) . . . 
29.32 
859 
307 $5.22 
$6.08 
Lot II Corn, Alfalfa Hay 
(cut in 
in self feeder) . . . 
30.12 
908 
299 
5.71 
6.62 
Lot III Corn, Alfalfa Hay 
(whole 
in self feeder) . . . 
30.80 
905 
293 
5.19 
6.10 
Lot IV Corn, Alfalfa Hay 
(whole 
on ground) . 
30.96 
955 
291 
5.30 
6.25 
A. —Grain lc per lb.; Alfalfa Hay (whole) $5.00 per ton; Ailfalfa Hay (cut) $6.00 per ton. 
B. —Grain lc per lb.; Alfalfa Hay (whole) $7.00 per ton; Alfalfa Hay (cut) $8.00 per ton. 
Cut Hay vs. Whole Hay 
This experimental series gives a clean cut comparison of the 
merits of reduced hay. In this trial as In the previous winter’s trial, 
the openings of the self feeders were narrowed so that there was no 
unnecessary waste of the alfalfa meal. The hay used throughout the 
experiment was first and second cutting, fairly typical of hay as cured 
in this section from season to season. The hay was bought from 
farmers near Fort Collins. 
Comparing Lots II and III, .we see that the average gain per head 
was 30.1 lbs. for the cut hay lot, and 30.8 lbs. for the whole hay lot. 
The amount of hay used per hundred pounds gain in live weight pro¬ 
duced was 908 lbs. for the cut hay and 905 lbs. for the whole hay. The 
amount of corn used on the same basis was 299 lbs. for the cut hay 
lot and 293 lbs. for the whole hay lot. In every item, the advantage, 
though slight, is in favor of the whole hay. This of course results in a 
higher cost of production for the cut hay lot, $5-7 I as against $5-!9 for 
the whole hay lot. 
The question at once arises whether there is no benefit at all in 
reducing hay. Such benefit has been found in other cases and why 
not here? The answer probably is found in the fact that good alfalfa 
hay was used. Alfalfa hay of good quality is very palatable to live 
stock, and when fed in properly constructed self-feeder racks, not a 
great deal of waste occurs. If the hay is coarse stemmed, over ripe, or 
weathered, a much greater proporton of the stems will be rejected. 
Sele Feeders For Hay 
Comparing lots III and IV, we find, as in our previous experi¬ 
ments reported in Bulletin 151, a saving in hay resulting from the use 
