Mineral Content of Southern Poultry Feeds 
31 
TABLE XX 
CONTROL TO FLOCKS RECORDED IN TABLE XIX 
Date 
Number at Start 
Number at End 
Average Weight at 
End of 8 Weeks 
2-p__ 
10 
7 
.82 
4-18_ 
13 
11 
.56 
4-23_____ 
10 
7 
.60 
4-18_ 
11 
10 
.58 
5-22___ 
13 
10 
.70 
Totals-- - 
57 
45 
3.26 
Averages.... 
11.4 
9 
.65 
In this series of tests, the average weight at the end of eight weeks 
was but 0.65 pounds. There was 78 per cent raised. The birds the 
previous year averaged 1.03 pounds each or 36 per cent greater gain 
in favor of the sour skim milk feeding. 
The results this far favor the greater development of those birds 
receiving nearer the required amounts of mineral elements. These 
are the birds receiving in their mash mixture animal food as meat meal, 
meat and bone meal, or are fed milk; and in addition green feed, lime¬ 
stone grit and crushed oyster shell. 
SUMMARY 
It is noted in the alanyses of the bodies of birds at different ages in 
their life beginning when first hatched that as the bird grows larger, 
that the quantity of calcium, magnesium, and phosphorus is increased. 
As the bird grows there is a greater proportionate amount of bony 
structure. There is also an increase of sulphur due to the fact that as 
the baby chick grows its downy coat is changed to a coat of feathers. 
There is also an increase in chlorine. 
In these studies seventy-three complete mineral analyses of feeds 
were made besides analyses of excreta. 
In the first tests, the experimental birds were given grain mixtures 
consisting of oats, corn, and wheat. The mash contained wheat mid¬ 
dlings, bone meal, meat and bone meal, and corn meal. In addition 
they were given all the sour skim milk they would drink, finely cut 
green feed in the form of rape, also oyster shell, and limestone grit. 
In a study of the balances from the table of intake and outgo there 
appears ample potassium, sodium, calcium, sulphur, chlorine, and iron 
but a slight deficiency of magnesium and phosphorus. 
Feed Mixture 1 has a nutritive ratio of 1:3.2; 2, 1:7.4; 3, 1:2.2, and 
