TABLE 1.

Growth of chicks fed antibiotics

Supplement	Amount*	Weight**
none	-	155
liver fraction “L”	2g	220
folic acid	0.5 mg	220
folic acid + sulfasuxidine	lg	280
folic acid + streptomycin	10 mg	280
folic acid + streptomycin	50 mg	300
folic acid + streptomycin	10 mg
and sulfasuxadine	lg	240

^*Per 100 gm diet (starch, casein, gelatin, soy bean oil, salts and known vitamins).

^**Average weight of six chicks at four weeks.