ANIMAL FEEDS 195 
it is sometimes found in the manufacture of low-grade meat scrap 
that no treatment is given to meat which would purify it; in other 
instances it is treated with a strong acid. When such methods 
are followed, there is danger of disease bacteria in the feed, or a 
strong acid residue may remain when ready for market. Beef 
scrap of this last character has been known to cause considerable 
injury and loss of valuable birds. 
Pork scrap is sometimes available for poultry feeding, but it 
contains a larger amount of fat and has a low digestibility, ‘for 
which reasons it is not as desirable as beef scrap. 
Bone products come next to meat scrap in popularity and 
efficiency as animal matter for poultry. They are fed either green 
or dried. The practice in preparing green bones is to secure them 
daily from the meat shop and grind them up in bone cutters and 
feed them fresh. If this method is followed, they have to be fed 
in limited quantities, as the birds will not stand a heavy feeding. 
The dried, crushed bone is a very efficient source of protein and 
ash in baby-chick feeding. (See also page 201.) 
Animal Meal.—Meat scrap, mixed with quite a large percentage 
of bone and fat, is often ground up exceedingly fine, thoroughly 
dried, and sold in the form of “‘ animal meal.” It has about the 
same feeding value as meat scrap, but there is a greater possibility 
of adulteration, and the feeder cannot be so sure of what he is using. 
Dried Blood.—This is a dried product of slaughter-houses, and, 
when properly sterilized and stored in dry places, will keep indefi- 
nitely. It can be used to good advantage in limited amounts in 
poultry mashes, especially to check diarrhcea; however, it possesses 
no advantage over a high-grade meat scrap or bone product. 
Fish Scrap.—The feeding of fresh fish was quite extensively 
practised at one time in localities where it could be obtained, 
but, owing to the fact that it tainted the eggs and the flesh of 
poultry, the practice was discontinued. Properly prepared fish 
scrap, from which the oil has been entirely removed, is being fed 
with very good results in certain sections, especially in California. 
A very essential feature in the manufacture of fish scrap for poultry 
feeding is that all the oil, which carries the objectionable odor 
and flavor, should be removed. Some high-grade fish scrap is 
manufactured at about one-half of the cost of meat scrap. This 
contains considerable protein. If possible to obtain this, it will 
make a very satisfactory substitute. 
Clams and other shell fish, if available in sufficient quantities, 
