M4 
THE VETERINARY SCIENCE 
Treatment. — If from want of animal food, feed more 
ground bone and meat. 
It is a good plan to trim a little ofif the end of the beak 
of the offender with a sharp knife, and then allow her to try 
satisfying this morbid desire for eggs on one made of china. 
It is said that one or two attempts to break a china egg 
with a bill pared to the quick is sufficient to bring about a 
cure. 
6. Fits. 
Causes. — These are usually due to some other physical 
derangement, such as may be caused by exposure to the 
hot sun or to the presence of worms. 
Symptoms. — The bird suddenly falls, flutters about and 
finally, in many cases, becomes insensible. 
Treatment. — Ascertain the cause, if possible, and treat 
accordingly. 
Cold water to the head is a good remedy. 
7. Sterility (Barrenness). 
This term is applied to a condition of either male or fe- 
male, the consequence of which is the production of infer- 
tile eggs. 
An infertile egg is one which, when subjected to proper 
conditions, fails to produce a chick because of the absence in 
it of the life germ. 
Causes. — Infertile eggs may, of course, be due to the 
male or to the female, and may be the result of a great many 
causes unnecessary to enumerate here, more than to say 
that these causes are, as a rule, in the great majority of 
cases due to conditions directly opposed to those outlined in 
the following section to ensure the production of fertile eggs. 
Treatment. — Remove the cause by bettering the condi- 
tion and endeavoring to carry out the principles laid down 
for the securing of fertility, Chap. IX, Sect. 4. 
8. Vertigo. 
Causes. — Excessive feeding of fat-producing food, pro- 
ducing an over fat condition causes the brain to be affected, 
thus giving rise to vertigo. 
Symptoms. — Partial control of the limbs is lost and the 
patient frequently runs about in a circle. 
