164 
Journal of Agricultural Research 
Vol. XXIII, No. 3 
Turkey No. 16.—Weight 5.68 kilos; dose rate 0.5 cc. per kilo; no 
worms passed in 4 days and no ill effects noted. 
Turkey No. 17.—Weight 6.5 kilos; dose rate 0.5 cc. per kilo; no 
worms passed in 4 days and no ill effects noted. 
Turkey No. 18.—Weight 5.5 kilos; dose rate 1 cc. per kilo; no 
worms passed in 4 days and no ill effects noted. 
The turkeys used were several years old and, as is often true of 
mature animals, were very lightly infested with parasites of the diges¬ 
tive tract. The only bird to show worm eggs in the feces at the begin¬ 
ning of the experiment was No. 15, which showed a few Capillaria 
present. The findings from these tests show nothing as to the anthel¬ 
mintic efficacy of carbon tetrachlorid since no post-mortem examinations 
were made, but they show that turkeys will tolerate doses of carbon 
tetrachlorid at the rate of 0.5 to 1 cc. per kilo of weight. From the 
following experiments on chickens it appears that turkeys will probably 
tolerate very large doses of carbon tetrachlorid. 
TESTS ON CHICKENS 
Carbon tetrachlorid was administered to 13 chickens by means of a 
catheter passed down the esophagus, the tests being made to determine 
anthelmintic efficacy and toxicity. The experiments were as follows: 
Bird No. 1.—Weight 1.505 kilos; dose rate 1 cc. per kilo; no worms 
passed in 3 days; post mortem, 1 spirurid in gizzard and numerous 
Hymenolepis in small intestine. 
Bird No. 2.—Weight 1.45 kilos; dose rate 1 cc. per kilo; no worms 
passed in 3 days; post mortem, 5 Heterakis papillosa and 1 Capillaria 
in ceca. 
Bird No. 3.—Weight 1.29 kilos; dose rate 1 cc. per kilo; passed 34 
Heterakis papillosa in 3 days; post mortem, 72 Tetrameres in proven- 
triculus, 6 spirurids in gizzard, and 6 H. papillosa in ceca. 
Bird No. 4.—Weight 1.175 kilos; dose rate 1 cc. per kilo; no worms 
passed in 3 days; post mortem, 13 Ascaridia perspicillum and numerous 
tapeworms in small intestine. 
Bird No. 5.—Weight 1.285 kilos; dose rate 2 cc. per kilo; passed 1 
Ascaridia perspicillum in 4 days; post mortem, few Gongylonema ingluvi- 
cola in crop, few Capillaria and Hymenolepis in small intestine, and 5 
Heterakis papillosa in cecum and large intestine. 
Bird No. 6.—Weight 1.07 kilos; dose rate 2 cc. per kilo; no worms 
passed in 4 days; post mortem, some Davainea proglottina in small 
intestine. 
Bird No. 7.—Weight 1.25 kilos; dose rate 2 cc. per kilo; no worms 
passed in 4 days; post mortem, 1 spirurid in gizzard, 15 Heterakis 
papillosa and 1 Capillaria in cecum. 
Bird No. 8.—Weight 1.385 per kilos; dose rate 2 cc. per kilo; no worms 
passed in 4 days; post mortem, few Tetrameres in proventriculus and 
few tapeworms in small intestine. 
Bird No. 9.—Weight 1.255 kilos; dose rate 2 cc. per kilo; no worms 
passed in 4 days; second dose at rate of 5 cc. per kilo, passed 2 Ascaridia 
perspicillum in 4 days; third dose at rate of 6 cc. per kilo, no worms 
passed in 3 days; fourth dose (7 days after third dose) at rate of 12 cc. 
per kilo, no worms passed in 3 days; post mortem (12 days after fourth 
dose), 25 tapeworms in small intestine. 
