1 15 2 https://www.nal.usda.gov/exhibits/speccoll/files/original/ed9921052f28c4795c7fb9f0d98c72ae.pdf 2f80b0e053cda3e91269687370419741 PDF Text Text Georgia Coastal Plain Experiment Station Ti ft on, Georgia June t0> t9^3 Leonard E. Swanson, D.V«M« Veterinary Parasitologist Department of Veterinary Science University of Florida Gainesville, Florida Dear Dr, Swansons Thank you for your letter of June 3rd and enclosed reprints* Z will send you a copy of the finished history as soon as It is completedm Sincerely yours. T. Bonner Stewart Parasitologist in Charge �AGRICULTURAL, EXPERIMENT STATIONS UNIVERSITY OF FLORIDA GAINESVILLE, FLORIDA DEPARTMENT OF VETERINARY SCIENCE June 3, 1963 Dr. T. Bonner Stewart Georgia Coastal Plain Experimental Station Tifton, Georgia Dear Sir: In reply to your letter and brochure of May 27, 1963 on the Moultrie, Georgia Zoological Division. I am enclosing a copy of my record while at this station in government service. August 1, 1938, I was assigned to this laboratory as Inspector in charge and continued until July 1, 1941. During my stay at this station I published the enclosed articles; Swanson, Leonard E., A note on the parasite fauna of Georgia., U.S. Bureau of Animal Industry., Reprinted from the proceedings of the Helminthological Society of Washington, Vol. 8, No. 2, July, 1941. Swanson, Leonard E. and A.L. Taylor, Control of cattleparasitic and free-living nematodes by soil fumigation with methyl bromide. Reprinted from Proceedings of the Helminthological Society of Washington, Vol. 10, No. 1, January, 1943. ^ Swanson, Leonard E.,and Kates, Kenneth C., U.S. Bureau of Animal Industry, Coccidiosis in a litter of Pigs., Reprinted from Proceedings of the Helminthological— Society of Washington, Vol. 7, No. 1, January, 1940. y ^ My principle assignment there was Anthelmintics. Publications are enclosed if not out of print. In lieu of this I am giving you a publication reference. K Swanson, Leonard E., The Efficacy of Phenothiazine for the C Removal of Ascarids and Nodular Worms from Swine. Journal ParasItol Suppi. pp.16-17. 1938. Swanson, Leonard E., Harwood, Paul D., and Connelly, James William., Phenothiazine as an Anthelmintic for the Removal of Intestinal Worms from Swine. J.A.V.M.A. 96(756) (1940), pp. 333-338. 75 y&utA, af, S&utice to &Ixwida Qjgsucutiwie �Swanson, Leonard E., and Kates, Kenneth Casper, Coccidiosis in a Litter of Pigs, Proc. Helminth. Soc. Washington. 7 (1) (1940) pp.29-30. Jan. Issued March. Swanson, Leonard E., Porter, Dale Albert, and Connelly, James William, Efficacy of Nonconditioned Phenothiazine in Removing Worms from the Alimentary Canal of Cattle. J.A.V.M.A. 96 (1940) pp704-707. June, Swanson, Leonard E. and Carlisle, B.E., Phenothiazine as an Anthelmintic for Cattle under Field Conditions. Vet. Med 36 (6) (1941) pp. 319-315 llus. June. Sincerely yours, Leonard E. Swanson, D.V.M. Veterinary Parasitologist LES/MD Enclosures: 5 �Georgia Coastal Plain Experiment Station Tifton, Georgia Hay 22, 1963 Dr* L* E. Swanson Veterinary Science Department University of Florida Gainesville, Florida Dear Dr* Swanson1 \ v. /—" Sometime ago I was asked to review the swine parasite work in south Georgia* Drs* Andrews and Sptndler collaborated in furnishing most of the information on the early years which I brought up to date* X would appreciate it if you could take the ti me to review the enclosed history with an eye towards correcting errors or adding details which may be missing* Sincerely yours, T* Bonner Stewart Parasitologist in Charge Enel*ADP:TBS:mm 5/22/63 �Georgia Coastal Plain Experiment Station Tlfton, Georgia May 22, 1963 Dr. L. E. Swanson Veterinary Science Department University of Florida Gainesville, Florida Dear Or. Swansoni Sometime ago I was asked to review the swine parasite work in south Georgia* Drs. Andrews and Spindler collaborated in furnishing most of the information on the early years which I brought up to date. X would appreciate it if you could take the time to review the enclosed history with an eye towards correcting errors or adding details which may be missing. Sincerely yours, T. Bonner Stewart Parasitologist in Charge Enel•«* ADP:TBSsmm 5/22/63 � Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Box The box containing the original item. 099 Folder The folder containing the original item. 015 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Leonard E. Swanson letter detailing publications written while at Tifton, Georgia from 1938-1941 Creator An entity primarily responsible for making the resource Leonard E. Swanson Date A point or period of time associated with an event in the lifecycle of the resource 1963 Format The file format, physical medium, or dimensions of the resource letter Identifier An unambiguous reference to the resource within a given context 223-099-015-001 https://www.nal.usda.gov/exhibits/speccoll/files/original/b924400c1d42dfa4e0dbcab4b1645c1f.pdf 04a222df3f00b31bec746756bb536342 PDF Text Text *5v “2\'«C '<v '« W"<i-“ v * 'i C* "j v“ 'if" ■■* v_ REPORT v“ *■ i* *, ’ “-5“ 'J1 OP *■ if LIVER FLUKE SITUATION IN COLORADO - BY THE •» * BUREAU OP ANIMAL INDUSTRY 35- • * U. S. DEPARTMENT OP AGRICULTURE 45- ■u- 48. ZOOLOGICAL DIVISION L. E. SWANSON W JUNIOR ZOOLOGIST « 45- SALT LAKE CITY, UTAH •54 <f » « A IV *iv »V A A A^,. �* 1 Report of The Liver Fluke Situation in Colorado f t ' Tl^e liver fluke situation in Colorado was investigated by personal contact with Veterinarians, County Agents, City and Federal Officials, Meat Inspection Departments, City, State and Federal and Packing house Managers, who do not have inspectors. The owners of sheep and cattle were interviewed and their places investigated whenever possible. Mesa County. Doctors Drew and who Paige, Practitioners of Grand Junction, have the meat inspection for that city, reported that a lerge percentage of the cattle from the following territories are infested with liver flukes; namely: DeBeque, Mesa, Collbran and Plateau City. They also feel that the Grand Mesa Country north and east of Grand Junction is also heavily infested. The latter is a high plateau summer cattle range covered with marshes and lakes. The local butcher at Mesa stated that a good beef liver was very uncommon. owners around the We gathered snails and above mentioned places. interviewed stock This is strictly a cattle country and no sheep are raised therein. Delta County. Doctor Zenor, Veterinarian of Delta, reports fluke infested cattle west of Delta along the river bottoms. Delta is also reported flukey. Cedaredge, north of The areas in Delta County are small and would be easily cleaned of this infestation. Montrose County. Dr. Craig, Veterinarian at Montrose, reports fluke infested cattle on the west river bottoms at Montrose. like Delta Countv. this section is small but heavily infested with Lymnea snails but could easily be treated to kill the snails. Very few sheep �(2) are raised in this section of the country. East of Montrose at Cimeron, which is a sheep country situated in a small wet valley* the ranchers have been having heavy yearly losses. stated that he has been nine years. One owner loosing sheep from flukes for the past His place is very marshy and Lymnea snails were plentiful in spots at the time I visited his place. The owner stated that later in the season the place was covered with this type of snail, (Eossaria Modicella). I autopsied one ewe and found the bile ducts of the liver contained dead flukes and calcified materials. No live flukes were found. This ewe was also heavily infested with Ostertagia stomach worms. This owner treats his home band yearly with carbon tetrachloride but does not treat the range band. The elevation ranges about 7,132j at the ranch. The owner will drain the home place but is inclined to believe that the summer range is also infested up to 10,000 feet elevation. (The latter is questionable) Other ranches in the valley are similarly situated. Montezuma County. Have one report from Kancos of 39 infested sheep out of 52 head killed at Denver. This country is quite dry and the prob- abilities are that they come from some other point. La Plata County. Doctor Robenstein of the U. S. B. A. I., has autopsied sheep and cattle in the southeast corner of this county and found liver flukes at "Bayfield and LaBoca and states that that section of the County is very swampy. trip. Did not investigate same on this �(3) Archuleta County* We have one report of flukes in this county. Joe Kirch of Pagosa Springs has been having losses from flukes in sheep and is using carbon tetrachloride yearly. Gunnison County. I was unable to obtain any direot information on the liver fluke situation in this county as they do not have a County Agent or Veterinarian. It is strictly a cattle country with no known death losses from liver flukes. , East and north of Gunnison the country is v/et and swampy and heavily infested with lymnea snails. Wild hay appears to be the main hay crop. with water. The fields were flooded They were apparently using flood and seepage method, which is ideal for flukes. The elevation is 7,683 feet. Most of the cattle from this section go to the feed lots in eastern or northeastern Colorado and even further east; therefore, the history is lost and we have no definite reports from this section. San Luis V alley. This valley is an ideal fluke territory comprising approx1- imately 6,000 sqi'i' miles and is divided into 5 counties. and sheep are raised throughout the valley. Cattle The ranchers ob- tain the water for irrigation purposes from the surrounding mountains and depend upon flooding and sub-irrigation methods; consequently, marshy v/et land is very abundant. Artesian wells also are abundant, from which there will be acres of constantly wet ideal snail breeding grounds. The elevation in this valley ranges from 7*5^0 feet to y,,88o feet. The higher elevation, from reports of owners and Veterinarians in the valley, is heaviest inf e st e d. This valley has proposed a drainage system for the east- �(4) ern end of the valley and submitted it to the Senate, which if completed-, will eliminate approximately 50% of the fluke infested area. The ranchers in this valley have learned,in most cases, to keep their sheep off the low areas and on the high mountains in the summer or get out of the sheep business. As the cattle men do not take a loss they are hard to convince that the liver fluke is doing them any serious damage. Those areas involved in San Luis Valley are Saquache and Moffat in Saquache County; Lei Nqfe, Monta Vista and Center in Rio Grande County; Alamosa and Hooper in Alamosa County; La Jara and Manassa in Conejos County and San Luis in Costilla County. Several ranches were visted and surrounding territories of each of the above points and were found to be typical fluke infested areas, and in some instances the owners stated they used to ness but have lost them from liver flukes. be in the sheep busiThey have one meat inspection establishment in the valley at Alamosa, and Lr. Berthelson, Inspector, stated that 30^ of all beef livers received at the plant are fluke infested. This valley would be very difficult to control due to the abundance of water, type of soil, difficulty of drainage and prevalence of cattle with little death loss, if any, and very few sheep where death usually occurs. ranchers realize the economic importance Most of the of liver flukes in cattle as well as in sheep but are not willing, or do not have the money to spend to eliminate the snails from their ranches. HuerFano County. We have one report from this county; Golmmer Bros, at La Veta . The wet areas are small and isolated and would be easily cleaned of snails by using copper sulphate. �5 ( ) Custer County* We have two reports from this county; at West Cliff. I did not personally investigate this section hut Dr. Stout, Extension Veterinarian for Colorado, has investigated saroe^ and feels that it is a flukey area. Pueblo County. Has been reported as a flukey territory but from observation and talking with local Veterinarians, any flukey cattle in this section would probably be shipped in and fed there and not originating at this point. The reports received from Boulder, Larimer and Weld Counties are found to be feeder cattle originating in San Luis or Gunnison Vallies and not from these counties named. The farms and feed lots through this section are well drained and the fluke situation would not be serious and could be controlled in case we did obtain a few isolated areas. The Veterinarians at the college at Port Collins and the Practitioners through this section have never found a fluke infested animal in this territory. there are a few North of Port Collins, on the Forest Reserve, isolated spots where we found some of the Lyronea snails but they could be drained very easily and the snails eliminated. We also have reports from Morgan County at Port Morgan; Elbert County at Agate; Kit Carson County at Stratton. I did not investigate these these counties as both Federal and State Veterinarians of Colorado deemed it they were feeder cattle. unnecessary, stating that We have one area reported in Park County at Jefferson and one in Eagle County at Basalt. two areas were not These investigated but officials stated that they �6) ( were sure of them being infested areas. Jackson County. At Walden - what is known as North Park Country, is an ideal flute area. The pastures are wet and swampy. Snails were hard to find at this season of the year but owners report that they are plentiful later in the season. Butchers claim that livers in cattle are usually bad. (Pont know what they mean, whether flukey or absessed). We autopsied one ewe which was heavily infested with Faemoncbus contortus, stomach worms. sheep showed evidence of flute fluke were found. The liver surface of this invasion but no adult or immature Dr. Fobenstein will keep a check and report to us on this flock and others in the valley, this fall. Routt County. At Steam Boat Springs, the City Meat Inspector states that he has never condemned a liver for liver flukes. There is consider- able swampy area in this valley and should be some flute invasion there. Moffat Count;/. There are a few isolated areas out of Craig where they have wet, sloughy pastures and snails are plentiful. Mr. C.C. Dolan lost 40 head of sheep out of 360 during the late fall and winter. His Dand was emaciated and in general an unthrifty band. history indicated immature and mature fluke loss. ewe. The We autopsied one There were no flutes present in the liver but the scars on the serous membrane indicated to me that the ewe had been infested in the past year with liver flutes. Snails were not very plentiful but what were there were Lymnea type and found in swampy country. Dr. Fobenstein is also going to check on this area and report any �7) ( fluke infestation that he finds, to this office. The above rdport is merely a preliminary investigation and I am of the opinion that Colorado has a number of other infested areas and if a thorough check on Post-mortem could be made, we would find the State very heavily infested - probably as much so as the State of Htah, where a thorough investigation has been made. Attended the meeting of the Colorado Veterinarians at Fort Collins, on May 24th and 25th - gave a paper on the liver fluke situation and control of liver flukes in Colorado. The attendants were enthusiastic about this work and asked many questions pertaining to the Liver Fluke Problems. It is with high regard and respect that I wish to thank all the Practicing Veterinarians, State Veterinarians, College Veterina* ians and Federal Veterinarians for their information and interest in this problem. Lr. Cow, State Veterinarian and Dr.,djf.-0. Wilson, Federal Inspector in charge and Dr. 1. N. Stout, Extension Veterinarian, all have expressed their cooperation in the future on this problem. Respectfully submitted, L. E. Swanson Junior Zoologist � Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Box The box containing the original item. 139 Folder The folder containing the original item. 004 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Report of liver fluke situation in Colorado by Leonard E. Swanson, Junior Zoologist, USDA Bureau of Animal Industry, Zoological Division Creator An entity primarily responsible for making the resource Leonard E. Swanson Date A point or period of time associated with an event in the lifecycle of the resource 1934 Format The file format, physical medium, or dimensions of the resource report Identifier An unambiguous reference to the resource within a given context 223-139-004-001 liver-flukes