Veterinary Parasitology Laboratory
 
Saving your animals from parasites by Using Fecal Worm Egg Counts to Determine Deworming Strategy!
• Beef & Dairy Cattle
• Equine
• Swine
• Sheep, Goats & Camelids
• Dogs & Cats
• Deer, Elk & other Wildlife
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Contract Research Opportunities

  • MidAmerica personnel have considerable experience with multinational companies in understanding research needs, priorities and requirements.
  • MidAmerica personnel have experience in helping determine product development schemes and can provide "think-tank" feedback from the various sectors of agriculture about product use, desirability, etc.
  • MidAmerica maintains a close association with a large number of contract research facilities, agricultural and veterinary universities, veterinarians, feedlots, and other multi-species farm operations for which suitable study locations can be identified as needed. MidAmerica, therefore, can identify and secure ideal locations to conduct field trials and provide trial monitors anywhere desired throughout North America.
  • MidAmerica can provide multidiscipline laboratory and clinical research support through a close association with the University of Wisconsin and local diagnostic, clinical and research facilities.
  • MidAmerica maintains an in-house parasitology lab that is capable of conducting thousands of fecal exams on samples taken from cattle, swine, equine, small ruminants, wildlife and small animals and mailed into the lab each month.
Scientific Publications
Donald H. Bliss, Ph.D.

1. Armour, J, J Bairden, J Duncan, R. M. Jones, and D. H. Bliss. "Studies on the Control of Bovine Ostertagiasis Using the Morantel Sustained Bolus." Vet. Record 108 (1981): 532-535.
2. Bliss, D H. A Comprehensive Review of Internal and External Parasites in Swine - Current Strategies for Complete Control. Somerville, NJ: Hoechst- Roussel Agri-Vet Co., 1996.
3. Bliss, D H., and A C. Todd. "Milk Losses in Dairy Cows after Exposure to Infective Trichostrongylid Larvae." Vet Med/Sm An Clin. 72 (1977): 1612-1617.
4. Bliss, D H., and A C. Todd. "Milk Production by Vermont Dairy Cattle after Deworming." Vet Med/Sm An Clin. 71 (1976): 1251-1254.
5. Bliss, D H., and A C. Todd. "Milk Production by Wisconsin Diary Cattle after Deworming with Thiabendazole." Vet Med/Sm An Clin. 69 (1974): 638-640.
6. Bliss, D H., and A C. Todd. "Milk Production in Wisconsin Dairy Cattle after Deworming with Baymix." Vet Med/Sm An Clin. 68 (1973): 1034-1038.
7. Bliss, D H., and A C. Todd. "Results of the IBA Surveys for Internal Parasitism." Dairy World 8 (1974): 10-12.
8. Bliss, D H., and G H. Myers. "Lungworm (Dictyocaulus) Outbreak in Lactating Dairy Cows." Large Animal Practice 19 (1998): 20-23.
9. Bliss, D H., and R M. Jones. "An Economic and Efficacy Comparison Between Morantel (When Administered From an Intraruminal Bolus) and Conventional Anthelmintic Treatment in Grazing Cattle." Vet Parasitology 12 (1983): 297-306.
10. Bliss, D H., and R O. Drummond. "Optimal Strategies for Combined Control of Internal and External Parasites of Cattle." Large Animal Practice 2 (1999): 12-18.
11. Bliss, D H., and T J. Newby. "The Use of a Morantel Sustained Release Bolus in Grazing Cattle Throughout North America." J Am Vet Med Assoc 192 (1988): 177-181.
12. Bliss, D H., and W G. Kvasnicka. "Failure of Avermectins to Control an Outbreak of Parasitic Gastro-Enteritis in a Cow/Calf Herd." Abstract. Am Assoc of Vet Parasit. (2004): 42.
13. Bliss, D H., and W G. Kvasnicka. "The Fecal Examination: a Missing Link in Food Animal Practice." The Compendium 4 (1997): 104-109.
14. Bliss, D H., and W Sizelove. "The Comparative Field Efficacy of Two Anthelmintic Topical Pour-on Formulations." Agri-Practice 17 (1996): 28-31. 15. Bliss, D H. "Controlling Liver Flukes in Cattle Grazing Infested Pastures." Western Beef Producer (1995): 68-70.
16. Bliss, D H. "Cost Effective Deworming Programs." Farm Supplier (1988): 22-32.
17. Bliss, D H. "Cost Effective Deworming Programs for Grazing Cattle." Animal Health & Nutrition (1986): 19-36.
18. Bliss, D H. "Cow/Calf Outfits Face Biggest Challenge - Inaccessibility Makes Strategic Deworming More Difficult." Beef Special Issue Cow/Calf Management (1988): 45-47.
19. Bliss, D H. "Efficacy of Oxfendazole (Synanthic) Against a Natural Nematodirus Infection in Dairy Calves." Agri-Practice 11 (1993): 36-38.
20. Bliss, D H., I E. Georgoulakis, S Grosomandis, S Taylor, and W J. Jordan. "The Strategic Use of Anthelmintics in Working Donkeys Raised Under Mediterranean Climatic Conditions." Vet Record 117 (1985): 613-614.
21. Bliss, D H., J Campbell, J Strickland, W G. Kvasnicka, R M. Corwin, L Laurence, and D Whittier. "Strategic Deworming of Cattle, Part 2 Roundtable Discussion." Agri-Practice 14 (1993): 32-37.
22. Bliss, D H., J Campbell, W G. Kvasnicka, J Strickland, R M. Corwin, L Laurence, and D Whittier. "Strategic Deworming of Cattle, Part 3. Roundtable Discussion." Agri-Practice 14 (1993): 18-27.
23. Bliss, D H., J Campbell, W Kvasnicka, J Strickland, C Corwin, L Laurence, and D Whittier. "Strategic Deworming of Cattle, Part I. Roundtable Discussion." Agri-Practice 1st ser. 14 (1993): 18-22.
24. Bliss, D H., J Hansen, G Rohwer, and G H. Myers. "Consumption Rate of Loose Mineral Containing Fenbendazole Fed Free-Choice to Cattle over a Three or Six Day Period." Am J Vet Res. (1988): 235-241.
25. Bliss, D H. "Parasite Control for Lactating Dairy Cows." Moorman\_Feed and Facts 6 (1996): 38-42.
26. Bliss, D H. Parasite Control Strategies for Dairy Cattle in the 1990's. Somerville, NJ: Hoechst- Roussel Agri-Vet Co., 1996.
27. Bliss, D H. "Profit from a Good Deworming Program." Dairy Herd Management 14 (1977): 4-9.
28. Bliss, D H. "Punching Up Deworming Programs." Beef Special Issue Cow/Calf Management (1988): 41-45.
29. Bliss, D H., R M. Jones, and D R. Conder. "Studies on Epidemiology and Control of Gastrointestinal Parasitism in Lactating and Grazing Adult Dairy Cows Using the Morantel Sustained Release Bolus." Vet Record 111 (1981): 141-144.
30. Bliss, D H. "Strategic Deworming - Pick a Plan Tailored to Your Herd's Environment." Dairy Today (1988): 36-40.
31. Bliss, D H. "Strategy Development Key to Controlling Parasites - Achieve Maximum Control for Minimum Cost by Timing Deworming Carefully." Veterinary Products News 8 (1996): 38-40.
32. Bliss, D H. Strengths and Weakness of the Milbemycin/Avermectins. 84th Annual Interstate Veterinary Medical Meeting, Aug. 1998. Sioux City, Iowa.
33. Bliss, D H. "Swine Parasite Control." Veterinary Products News (1992): 30-31.
34. Bliss, D H. The Cattle Producer's Handbook for Strategic Control. Somerville, NJ: Hoechst- Roussel Agri-Vet Co., 1987.
35. Bliss, D H. The Nature and Natural History of Worm Parasitism in Dairy Cattle. Diss. Univ. of Wisconsin, 1976.
36. Bliss, D H. "The Prevalence of Parasite Contamination on Spring Pastures From Cow/Calf Herds in Texas as Determined by Fecal Worm Egg Counts." Texas J Am Vet. (1989): 18-20.
37. Bliss, D. H. The Prevalence of Parasitism in Wisconsin and Their Impact on Milk Production in Dairy Cows. Diss. Univ. of Wisconsin, 1973.
38. Bliss, D H. The Professional Handbook of the Donkey; Chapter VII. Parasites Abroad. Devon, England: Sovereign Printing Group. 1986. 84-90.
39. Bradley, R E., T J. Newby, and D H. Bliss. "Efficacy of a Morantel Sustained Release Bolus for Controlling Gastrointestinal Nematodes in Florida Dairy Heifers." Am J Vet Res 47 (1986): 2385-2388.
40. Burger, H J., R M. Jones, and D H. Bliss. "Mehrmonatige Meta and Prophylaxe Der Parasitaren Gastro-Enteris Bei Kalbein Durch Gabe Eines Morantel-Langzeitbolus Vor Dem Ais." Berliner and Muenchener Tieralrztliche Wochemschrift 94 (1981): 311-319.
41. Conder, D R., R M. Jones, and D H. Bliss. "The Use of the Morantel Sustained Release Bolus in Second Season Grazing Cattle." Vet Parasitology 12 (1983): 307-312.
42. Crowley, J W., A C. Todd, D H. Bliss, and T J. Kennedy. "Efficacy of Oxibendazole against Adult and Larval Nematodes of Cattle." Am J Vet Res 37 (1976): 1285-1286.
43. Crowley, J W., W J. Foreyt, D H. Bliss, and A C. Todd. "Further Controlled Evaluations of Fenbendazole as a Bovine Anthelmintic." Am J Vet Res 38 (1977): 689-692.
44. Dickinson, E. O., D A. Armstrong, J H. Schafer, and D H. Bliss. "Nematodirus helvetianus: an Overlooked and Underestimated Parasite of Calves." Topics in Veterinary Medicine 2 (1991): 12-19.
45. Hart, K B., and D H. Bliss. "Field Evaluation of Macrocyclic Lactone Pour-on Under Field Conditions." Abstract. Am Assoc of Vet Parasit. (2006): 60.
46. Hoover, R C., S D. Lincoln, T J. Newby, and D H. Bliss. "Controlling Parasitic Gastro-Enteritis in Pastured Cattle." Vet Med/Sm An Clin 79 (1984): 1082-1086.
47. Jacob, D E., M T. Fox, M J. Walker, R M. Jones, and D H. Bliss. "Field Evaluation of a New Method for the Prophylaxis of Parasitic Gastro-Enteritis in Calves." Vet Record 108 (1981): 274-276.
48. Jacobs, D E., M T. Fox, R M. Jones, and D H. Bliss. "Studies on Epidemiology and Control of Bovine Gastro-Enteritis and Parasitic Bronchitis Using the Morantel Sustained Release Bolus in a Pasture Rotational Management System." Vet Record 110 (1982): 141-144.
49. Jones, R M., and D H. Bliss. "The Susceptibility of Ostertagia and Cooperia to Morantel Tartrate After Extended Exposure to the Morantel Sustained Release Bolus." Vet Parasitology 12 (1983): 329-336.
50. Kennedy, T J., D P. Conway, and D H. Bliss. "Prophylactic Medication with Pyrantel to Prevent Liver Condemnation in Pigs Naturally Exposed to Ascaris Infections." Am J Vet Res 12 (1980): 2089-2091.
51. Kvasnicka, W G., and D H. Bliss. "Field Efficacy of Endecticide Pour-on Formulations against Cattle Gastrointestinal Nematodes." Abstract. Am Assoc of Vet Parasit. 47 (2002): 50.
52. Kvasnicka, W G., L J. Krysl, R C. Torell, and D H. Bliss. "Fenbendazole in a Strategic Deworming Program." The Compendium - Food Animal Parasitology 41 (1996).
53. Kvasnicka, W G., R Torell, L J. Krysl, A Miller, V Higbee, J Peterson, D Torell, D H. Bliss, and G H. Myers. The Prevalence of Parasite Contamination on Great Basin Pastures and Ranges from Cow/Calf Herds as Determined by Fecal Worm Egg Counts. Western Section Am Society of Animal Sci., 1990.
54. Newby, T J., C A. Slyngstad, D L. Drawe, V L. Anderson, and D H. Bliss. "Morantel Treatment of Suckling Purebred Beef Calves." Vet Med/Sm An Clin 77 (1982): 1657-1660.
55. Newby, T J., D H. Bliss, R A. Magonigle, T R. Bello, J H. Drudge, and E T. Lyons. "Field Test Evaluation of a Pyrantel Pamoate Paste against Strongyle Infections in Horses." Equine Practice 4 (1982): 28-34.
56. Newby, T J., D L. Drawe, and D H. Bliss. "Morantel Treatment of Subclinical Parasitism in Beef Cattle: Weaning Weight Comparisons of Suckling Calves Grazed on Native Grasslands in South Texas." Bovine Practice 3 (1982): 36-40.
57. Newby, T J., V E. Brimhall, C M. Sheldon, J J. Sheldon, and D H. Bliss. "Morantel Treatment of Subclinical Parasitism in Beef Cattle: Feedlot Performance Following Pasture Treatment Programs." Bovine Practice 4 (1982): 18-26.
58. Prosl, H, R Supperer, R M. Jones, D H. Bliss, and P W. Lockwood. "Morantel Sustained Release Bolus: a New Approach in the Control of Trichostrongylosis in Austrian Cattle." Vet Parasitology 12 (1983): 28-34.
59. Raynaud, J P., R M. Jones, D H. Bliss, J P. Lestang, and D Kerboeuf. "Control of Parasitic Gastro-Enteritis of Grazing Cattle in Haute Normandie Using the Morantel Sustained Release Bolus." Vet Parasitology 12 (1983): 251-260.
60. Taylor, F, D H. Bliss, W Nichols, J Rains, B Brandt, and J Hutcheson. "Strategic Deworming on Pasture Followed by Subsequent Feedlot Deworming. II. Effects on Abomasal Worm Counts and Abomasal Pathology." Bovine Practitioner 34 (2003): 145-160.
61. Todd, A C., and D H. Bliss. "Milk Production Related to the Removal or to the Presence of Parasitic Worms." Northeast Improver 7 (1974): 37-38.
62. Todd, A C., and D H. Bliss. "The Best Time to Deworm Milking Cows." Dairy Today 10 (1975): 12-13.
63. Todd, A C., D H. Bliss, and G H. Myers. "Milk Production Increases Following Treatment of Subclinical Parasitism in Wisconsin Dairy Cattle." New Zealand Vet J 23 (1975): 59-62.
64. Todd, A C., D H. Bliss, and G H. Myers. "Subclinically Infected Cows Respond to Deworming with More Milk." Hoard\_Dairyman 119 (1974): 45-51.
65. Todd, A C., D H. Bliss, L Grisi, and J W. Crowley. "Milk Production by Dairy Cattle in Pennsylvania and North Carolina after Deworming." Vet Med/Sm An Clin 73 (1978): 616-619.
66. Todd, A C., D H. Bliss, P Scholl, and J W. Crowley. "Controlled Evaluation of Fenbendazole as a Bovine Anthelmintic." Am J Vet Res 38 (1976): 689-692.
67. Todd, A C., G H. Myers, D H. Bliss, and D D. Cox. "Milk Production in Wisconsin Dairy Cattle after Anthelmintic Treatment." Vet Med/Sm An Clin. 67 (1972): 1233-1236.
68. Todd, A C., J Crowley, L Grisi, G Myers, V Gutierres, and D H. Bliss. "Economics and Treatment of Parasitic Diseases in Dairy and Beef Cattle." Modern Vet Pract. 58 (1978): 507-509.
69. Tolling, S, M Tornquist, R M. Jones, and D H. Bliss. "Further Studies on the Anthelmintic Effect of a Sustained Release Pre-Grazing Treatment with Morantel in Sweden." Nordisk. Veterinaer. Medicin. 33 (1981): 339-348.
70. Torell, R, W Kvasnicka, G Veserat, L Krysl, G Nader, and D H. Bliss. Evaluation of Anthelmintic Treatments in Cattle Grazing Great Basin Rangeland in Nevada and California. Western Section Am Society of An Sci., 1992. J Ani Sci, 1992.
71. Tornquist, M, S Tolling, R M. Jones, and D H. Bliss. "Studies on the Anthelmintic Effect of a Sustained Pre-Grazing Treatment with Morantel in Sweden." Nordisk. Veterinaer. Medicin. 33 (1981): 327-338.
72. Williams, J C., A F. Loyacano, S D. Broussard, D F. Combs, A Derosa, and D H. Bliss. "Efficacy of a Spring Strategic Fenbendazole Treatment Program to Reduce Numbers of Ostertagia ostertagi Inhibited Larvae in Beef Stocker Cattle." Vet Parasitology 59 (1995): 1227-1237.
73. Zimmerman, D R., D P. Conway, D H. Bliss, D O. Farrington, and H J. Barnes. "Effects of Carbadox and Pyrantel Tartrate on Performance and Indices of Mycoplasma Hyopneumoniae and Ascaris Suum Infections in Pigs." J Am Sci. 57 (1982): 434-439.
Scientific Presentations
Donald H. Bliss, Ph.D.

1. Bliss, D H., A C. Todd, and L Grisi. "Relationships between Worm Parasitism in Dairy Cattle and Milk Production, From Experimentation." Abstract. 71st Annual Am Dairy Sci. Assoc. (1976).
2. Bliss, D H. "A Deworming Program on for Cow/Calf Production." Abstract. Panhandle Vet Supply 30th Annual Mtg. (1989).
3. Bliss, D H., and A C. Todd. "Milk Losses in Dairy Cows after Exposure to Infective Trichostrongylid Larvae." (1974). Abstract. 54th Nat Conf. of Research Worker in Animal Disease.
4. Bliss, D H., and A C. Todd. "Milk Production by Vermont Dairy Cattle Following Anthelmintic Treatment." Abstract. 55th Nat Conf. of Research Workers in Animal Disease. (1975).
5. Bliss, D H., and A C. Todd. "Milk Production Following Deworming of Dairy Cows." Abstract. 19th Nat Conf. Am Assoc. of Vet Parasit. (1974).
6. Bliss, D H., and A C. Todd. "The Nature of Parasitism in Dairy Cattle." Abstract. 7th Int. Conf. of the World Assoc. for the Adv. of Vet Parasit. (1975).
7. Bliss, D H., and L L. Smith. "The Efficacy of the Morantel Sustained Release Bolus in Southern Wisconsin." Abstract. Southern Conf. of Animal Parasit. (1984).
8. Bliss, D H., and R M. Jones. "Epidemiology and Economic Implications of an Anthelmintic Treatment System Evaluated in European Grazing Cattle." (1982). Abstract. 5th Int. Congress of Parasit.
9. Bliss, D H., and R Schnepper. "Nodular Worms as a Course of Diarrhea, Ill Thrift and Mortality in Nursery Pigs." Abstract. Am Assn of Swine Practitioners (1990).
10. Bliss, D H., and W G. Kvasnicka. "Failure of Avermectins to Control an Outbreak of Parasitic Gastro-Enteritis in a Cow/Calf Herd." (2004). Abstract. 49th Annual Mtg of the Am. Assoc. of Vet Parasit.
11. Bliss, D H. "Avermectin Resistance and Strategic Approaches to Internal Parasite Control." (2006). Abstract. Marsyt Seminar on Applied Innovations.
12. Bliss, D H. "Cost Effectiveness of Deworming Dairy Heifers." Abstract. Dairy Practitioner Seminars in Ca, NY, OH and WI. (1987).
13. Bliss, D H. "Cost Effective Programs for Deworming Grazing Beef Cattle." Abstract. 19th Annual Missouri Cattlemen\_Assn. Convention 1987.
14. Bliss, D H. "Cow/Calf Herd Health Management." Abstract. Iowa Cattlemen\_Assn. Annual Mtg (1989).
15. Bliss, D H. "Development of a Strategic Treatment System for the Use of the Morantel Sustained Release Bolus - Summary of Efficacy under Field Use Conditions throughout North America." Abstract. 29th Annual Mtg of the Am Assoc. of Vet Parasit. (1984).
16. Bliss, D H. "Deworming Programs That Increase Profitability." Abstract. 26th Annual Illinois Beef Assn. and Illinois Cattlemen\_Mtg. (1989).
17. Bliss, D H. "Deworming Tips." Abstract. WI Central Sheep Producers Annual Mtg. (2000).
18. Bliss, D H. "Diagnosis and Economic Advantages of Internal Parasite Control for Dairy Cattle." Abstract. Dairy Herd Health Programming Conf. (1987).
19. Bliss, D H., E Dickinson, S H. Shafer, and D A. Armstrong. "The Occurrence of a Clinical Infection of Nematodirus helvetianus in Dairy Cattle in Wisconsin." Abstract. 35th Annual Mtg of the AM Assn of Vet Parasit. (1990).
20. Bliss, D H. "Evaluating and Understanding Internal Parasites of Swine." Abstract. Ohio Pork Congress (1990).
21. Bliss, D H. "Gastrointestinal Parasite Control in Dairy Cattle." Abstract. 1987 World Dairy Expo. (1987).
22. Bliss, D H., I E. Georgoulakis, W J. Jordan, and D E. Svendsen. "The Strategic Use of Anthelmintics in Working Donkeys in the Mediterranean." Abstract. 11th Conf. of the World Assoc. for the Adv. of Vet Parasit. 1985.
23. Bliss, D H., I E. Georgoulakis, W J. Jordan, and E D. Svendsen. "The Continuous Strategic Use of Anthelmintics In working Donkeys on a Small Greek Island Over a 5-Year Period." Abstract. 31st Annual Mtg of the Am. Assoc. of Vet Parasit. 1986.
24. Bliss, D H. "Improved Efficiency in Cow/Calf and Stocker Cattle Using Strategic Dewormings." Abstract. 73rd Annual Kansas Livestock Assn. Convention. 1985.
25. Bliss, D H. "Internal Parasite Control in Goats Featuring Strategic Timed De-Worming Strategies." Abstract. Univ. of MN Extension and Meatgoat Producer Assn. Mtg. (2006).
26. Bliss, D H. "Internal Parasites-Strategic Control." (2006). Abstract. 2nd Annual Equine Nutrition Conf.
27. Bliss, D H., J Hensen, G Rohwer, and G H. Myers. "Consumption Rate by Grazing Cattle Fed Free-Choice Mineral Containing Fenbendazole." Abstract. 21st Annual Mtg Midwestern Section of the AM Society of Animal Sci. (1987).
28. Bliss, D H. "Large Animal Parasites and Strategic Control for Pastured Cattle." (1990). Abstract. Nevada Vet Med Assn. Annual Meeting.
29. Bliss, D H. "Minimizing Economic Losses >From Parasitism." Abstract. TN Pork Producer\_Assn. Convention. (1991).
30. Bliss, D H. "Modern Concepts in Equine Parasite Control." Abstract. CA/NV Vet. Med. Assn. Joint Convention. (1991).
31. Bliss, D H. "Morantel in a Strategic Anthelmintic Treatment Program." Abstract. Academy of Vet Consultants (1981).
32. Bliss, D H. "Nevada Parasite Survey - Products for Treatment and Control." Abstract. Univ. of Nevada Cooperative Ext. Faculty Development Mtg. (1989).
33. Bliss, D H. "New Concepts in Equine Parasite Control." (1988). Abstract. Equine Reproduction and Parasite Management Seminar.
34. Bliss, D H. "New Strategies for Parasite Control in Cattle." Abstract. Murray State Univ. Animal Health Tech. Program. (1988).
35. Bliss, D H. "Parasite Control for Range Cattle." Abstract. Annual Nevada Livestock Educational Seminars (1988).
36. Bliss, D H. "Parasite Control in Winter Stockers." Abstract. TX Agri. Extension Stocker Health Clinic. (1988).
37. Bliss, D H. "Parasite Evaluation Clinics." Abstract. Penn State Dairy Cattle Nutrition Workshop (2006).
38. Bliss, D H. "Parasites in Goats." Abstract. 2006 Am Dairy Goat Assn. Mtg (2006). 39. Bliss, D H. "Parasite Survey in the Great Basin and Economic Benefits from Strategic Parasite Control under Range Conditions." (1991).
Abstract. AZ Vet. Med. Assn. Annual Convention. 40. Bliss, D H. "Parasitology." Abstract. 2000 Prof. Dairy Heifers Growers Assn. Mtg. (2000).
41. Bliss, D H. "Parasitology and Parasiticide Update." Abstract. 1991 Eastern Iowa Vet Assn Convention. (1991).
42. Bliss, D H. "Progress in the Control of Gastro-Intestinal Parasites in Cattle." (1981). Abstract. 13th Annual Pfizer Research Conf.
43. Bliss, D H., R M. Jones, and P W. Lockwood. "An Economic and Efficacy Comparison between Morantel (When Administered From a Sustained Release Bolus) and Conventional Anthelmintic Programmes in Grazing Cattle." Abstract. 9th Int. Conf. of the World Assoc. for the Adv of Vet Parasit. (1981).
44. Bliss, D H., S A. Brantmeier, R F. Taylor, and R Muser. "Extended Treatment Regimen for Fenbendazole in Pigs Infected with Ascaris Suum and Trichuris Suis." Abstract. 33rd Annual Mtg of the Am Assoc. of Vet Parasit. (1988).
45. Bliss, D H. "Strategic Control of Gastro-Intestinal Parasites of Sheep." (2006). Abstract. 12th Annual Great Lakes Dairy Sheep Symposium.
46. Bliss, D H. "Strategic De-Worming Concepts and Fecal Monitoring." Abstract. 109th Annual Mtg. SD Vet. Med. Assn. (2000).
47. Bliss, D H. "Strategic Deworming in Swine Operations." Abstract. Rock Valley Vet Med. Assn. (1989).
48. Bliss, D H. "Strategic Deworming for Arkansas Pork Producers." Abstract. Arkansas Pork Congress (1990).
49. Bliss, D H. "Strategic Deworming of Pastured Cattle under Intensive and Extensive Grazing Conditions." Abstract. Southeastern Grazing Conf. (1987).
50. Bliss, D H. "The Impact of Parasitism upon Milk Production in Dairy Cattle." Abstract. 53rd Nat. Conf. or Research Workers in Animal Disease. (1973).
51. Bliss, D H. "The Morantel Sustained Release Bolus - a Novel One Treatment, Seasonal Control for Cattle Helminths." Abstract. 68th Annual Mtg of the Livestock Conservation Institute. (1984).
52. Bliss, D H. "The Prevalence, Epidemiology and Control of Parasitic Gastro-Enteritis in Cow/Calf Herds throughout Texas." Abstract. TX Vet. Med. Assn. Convention (1991).
53. Bliss, D H. "The Prevalence of Parasitic Infections in Wisconsin and Their Impact on Milk Production in Dairy Cows." Abstract. 52nd Nat. Conf. of Research of Research Workers in Animal Disease (1972).
54. Bliss, D H. "The Use of a Morantel Sustained Release Bolus in Grazing Cattle throughout North America." Abstract. 1984 Annual Mtg of the Am Society of Animal Science. (1984).
55. Bliss, D H., T J. Newby, and R M. Jones. "Control of Parasitic Gastro-Enteritis in Cattle Throughout Europe and North America Using the Morantel Sustained Release Bolus." Abstract. 10th Int. Conf. of the World Assoc. for the Adv. of Vet Parasit. (1983).
56. Bliss, D H. "Update on Gastro-Intestinal Parasites in Cattle and Sheep in Nevada." Abstract. 1988 Nevada Annual Cattlemen\_and Wool Grower_Joint Assn. Convention. (1988).
57. Bliss, D H. "Use of a Sustained Release Anthelmintic Bolus on the Seasonal Control of Gastrointestinal Parasitism." (1983). Abstract. Coordinating Committee on Research on Internal Parasites - Southern Region.
58. Bliss, D H. "Use of Parasite Wet Labs to Build Your Practice." Abstract. Am Assn of Swine Practitioners (1990).
59. Bliss, D H. "Using Fenbendazole in a Strategic Deworming Program for Cow/Calf and Stocker Cattle." Abstract. Nat. Cattlemen\_Assn. Convention. 1986.
60. Bliss, D H. "Western States Parasite Survey and Strategic Deworming Programs." Abstract. CA/NV Vet. Med. Assn. Joint Convention. (1991).
61. Dickinson, E, D A. Armstrong, J H. Schafer, and D H. Bliss. "Intestinal Changes Caused by Infection by Nematodirus helvetianus in Dairy Calves." (1990). Abstract. 35th Annual Mtg of the AM Assn of Vet Parasit.
62. Dresback, D S., R M. Jones, J A. Curtiss, W A. Boetner, A Grizzuti, J T. Goras, D H. Bliss, A T. Gilman, and J F. Gibbs. "Development of a Reservoir Device for Delivery of an Anthelmintic Drug to Cattle." Abstract. AphA Academy of Pharmaceutical Sciences. (1983).
63. Hagsten, I, T Holthaus, and D H. Bliss. "Ohio Swine Parasites - a New Look At an Old Problem." Abstract. 1990 Annual Mtg of the Am Society of Animal Sci. (1990).
64. Hart, K B., and D H. Bliss. "Efficacy Evaluation of Macrocyclic Lactone Pour-Ons under Field Conditions." (2006). Abstract. 51st Annual Mgt of Am. Assoc. of Vet Parasit.
65. Jones, R M., and D H. Bliss. "Studies on the Influence of the Morantel Sustained Release Bolus on the Susceptibility of Parasites to Morantel." Abstract. 10th Int. Conf. of the World Assn. for the Adv. of Vet Parasit. (1983).
66. Jones, R M., and D H. Bliss. "The Effects of Repeated Use of the Morantel Sustained Release Bolus on the Susceptibility of Ostertagia ostertagi to Morantel." Abstract. 9th Int. Conf. of the World Assoc. for the Adv of Vet Parasit. (1981).
67. Jones, R M., and D H. Bliss. "Variations in Production Response after Anthelmintic Treatment Leading to a New Concept in Worm Control in Dairy Cattle." Abstract. 25th Nat Conf. of Am Assn. of Vet Parasit. (1980).
68. Kvasnicka, W G., and D H. Bliss. "Field Efficacy of Endecticide Pour-on Formulations against Cattle Gastrointestinal Nematodes." (2002). Abstract. 47th Annual Mtg of the Am. Assn. of Vet Parasit.
69. Lockwood, P W., D H. Bliss, and R M. Jones. "Preliminary Investigations in the Use of the Morantel Sustained Release Bolus in the Control of Parasitism in Beef Suckler Herds in Europe." Abstract. 9th Int. Conf. of the World Assoc. for the Adv of Vet Parasit. (1981).
70. Oosterdorp, D, F H. Borgsteede, R M. Jones, and D H. Bliss. "The Efficacy of the Paratect Bolus in the Control of Parasitic Gastro-Enteritis in Calves and Heifers." Abstract. 32nd Annual Mtg of the European Assoc. for Animal Production. (1981).
71. Smith, L L., and D H. Bliss. ďA 3-Year Study on the Epidemiology of Parasitism in Stocker Cattle Using a Rotational Grazing System in Wisconsin." Abstract. 31st Annual Mtg of the Am. Assoc. of Vet Parasit. (1986).
72. Smith, L L., and D H. Bliss. "Epidemiology and Control of Parasitism in Wisconsin Beef Cattle During the 1982 Summer Grazing Season." Abstract. 64th Conf. of Research Workers in Animal Disease (1983).
73. Taylor, R F., L G. Biehl, D W. Miskimins, and D H. Bliss. "Clinical Epidemiology and Diagnostic Features of a Larval Trichuriasis Outbreak in a Commercial Illinois Swine Operation." Abstract. 35th Annual Mtg of the Am. Assn of Vet Parasit. (1990).
74. Taylor, R F., L G. Biehl, and D H. Bliss. "An Enteric Disease Outbreak Caused by Larval Stages of Trichuris Suis (Whipworm) in Swine." Abstract. US Animal Health Annual Mtg. (1989).
75. Thomas, E M., and D H. Bliss. "Efficacy of the Morantel Sustained Release Bolus in Southern Indiana." Abstract. Southern Conf. of Animal Parasit. (1984).
76. Wilkins, C P., and D H. Bliss. "The Efficacy of the Morantel Sustained Release Bolus with Artificially Induces Infections under Field Conditions." Abstract. 64th Conf. of Research Workers in Animal Disease (1983).