Book/Printed Material The turkey an important factor in the spread of gapeworms [Syngamus trachcalis]
-
Image 1 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] SF it Ocvv-t-^rvv*^ (S^^.- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 2 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis]- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 3 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] UNITED STATES DEPARTMENT OF AGRICULTURE BULLETIN No. 939 Contribution from the Bureau of Animal Industry JOHN R. MOHLER, Chief Washington, D. C. April 23, 1921 THE TURKEY AN IMPORTANT FACTOR IN THE…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 4 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] 2 BULLETIN 939, U. S. DEPARTMENT OF AGRICULTURE. other series of 115 was examined, and during the month of Novem- ber, 1918, a final series of 178 in all, 679 turkey tracheas…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 5 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] 1?3 THE TURKEY IMPORTANT IN THE SPREAD OF GAPEWORMS. 3 a year old. That turkeys above 3 years of age may harbor gape- worms is established by the fact that a turkey…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 6 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] 4 BULLETIN 939, U. S. DEPARTMENT OF AGRICULTURE. From the data shown in the table it seems evident that as chickens grow older they tend to become less susceptible to infection with…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 7 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] THE TURKEY IMPORTANT IX THE SPREAD OF GAPEWORMS. 5 ture, those in the trachea evenly distributed from bronchi to larynx. The females in the trachea measured 3 to 6 mm. in length.…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 8 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] 6 BULLETIN 939, U. S. DEPARTMENT OF AGRICULTURE. which the worms succeed in developing to maturity in adult chickens and the failure to find any gapeworms among a large number of adult…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 9 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] THE TURKEY IMPORTANT IN THE SPREAD OF GAPEWORMS. 7 harbored, respectiveh 9 2, 75, and 36 pairs of «:apeworms in their tracheas, the females ranging in size from 4 to 11 mm.…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 10 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] 8 BULLETIN 939, V. S. DEPAKTMENT OF AGRICULTURE. gapeworms. There is little question, however, that the turkey is more important than any other bird as a reservoir of infection, and it is…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 11 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] THE TURKEY IMPORTANT IN THE SPREAD OF GAPEWORMS. 9 5 ear, but it was said that they never came near the chicken yards. A dozen guinea fowls were kept on this farm…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 12 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] 10 BULLETIN 939, U. S. DEPAKTMENT OF AGRICULTURE. SIGNIFICANCE OF TURKEYS IN RELATION TO GAPES FORMERLY UNRECOGNIZED. From the literature on gapes one may gather further evidence of the importance of the…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 13 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] THE TURKEY IMPORTANT IN THE SPREAD OF GAPEWORMS. H worms observed by the writer in chickens 14 clays after infection has been 17 mm. Usually the length attained in this period is…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 14 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] 12 BULLETIN 93 U. S. DEPARTMENT OF AGRICULTURE, from gapeworm can be greatly reduced, inasmuch as infection of the runs by the brood hens is not often likely to occur because of…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 15 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] THE TURKEY IMPOETAXT IX THE SPREAD OF GAPEWORMS. 13 Ground contaminated by gapeworms is likeh to -remain infective for at least a year after further infection of the soil has ceased. Losses…- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 16 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis]- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 17 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis]- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 18 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis]- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 19 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis]- Contributor: Ransom, Brayton Howard
- Date: 1921
-
Image 20 of The turkey an important factor in the spread of gapeworms [Syngamus trachcalis] LIBRARY OF CONGRESS ,r„,ri,iirii iiiii|niil||li|!l|lll I ll llll 111 002 858 384 9,- Contributor: Ransom, Brayton Howard
- Date: 1921