583 
COURSE OF EXPERIMENTS TO DETERMINE THE EFFECT 
PRODUCED ON THE GROWTH OF CATTLE BY 
MIXING SALT WITH THEIR FOOD. 
By the same. 
In my previous paper, “ On the Effect of steeping the Food of 
Cattle,” the results of which I had the honour to lay before the 
Academy, I metioned that the animals received at the rate of 3 lbs. 
of hay per day to each 100 lbs. of live weight. This experiment 
has been continued without any change, except that the two lots 
of young cattle were not at all limited in their supply of hay, and 
received, besides, a moderate quantity of beet-root, daily. The 
weight each animal consumed was ascertained by placing a large 
quantity of hay within their reach every morning, and weighing 
the residue the next morning before giving them a fresh supply. 
In this case the weight of each animal is kept distinct, and the 
results shewn as under by the letters A, B, C, and A’, B’, C\ 
On the 13th November, 1846, at the conclusion of the ex- 
periment described in the previous paper, the weights were as 
follow : — 
Lot No. 1. 
weighed 330 lbs. 
316 „ 
Lot No. 2. 
A’ weighed 292 lbs. 
B’ 308 „ 
314 „ 
(P 304 „ 
Total... 960 lbs. 
Total... 904 lbs. 
The experiment was commenced November 13th, and was con- 
tinued until the morning of the 11th of March, 1847. During 
these 117 days between the above dates, Lot No. 1 receiving a 
portion of salt with their food, and Lot No. 2 receiving their food 
without salt ; each lot consumed as follows : — 
Lot No. 1, 
with salt, received of 
Hay lbs. 
1,584 
Aftermath 
1,880 
Beet-root, 2,500 
lbs. — hay 
624 
Total... 
4,088 
Lot No. 2. 
without salt, received of 
Hay lbs. 
1,406 
1,740 
Aftermath 
Beet-root, 2,320 
lbs. — hay 
a 
580 
Total... 
3,726 
As in the previous experiment, there was great difference in the 
quantity of water consumed by each lot : — Lot No. 1, with salt, 
drank every day eleven gallons of water. Lot No. 2, without 
salt, drank every day seven gallons of water. 
