@article {47846, title = {Prevalence of sucking and chewing lice on cattle entering feedlots in southern Alberta}, journal = {Canadian Veterinary Journal}, volume = {42}, year = {2001}, month = {2001}, pages = {281 - 285}, abstract = {

Beef calves from 2 sources entering southern Alberta feedlots in the winters of 1997-98 and 1998-99, were surveyed for the presence of lice. A random sample of multiple source (MS), that is, auction market-derived, calves entering commercial feedlots and single source (SS) calves entering a backgrounding feedlot were examined for the presence of lice at entry to the feedlot. A standardized examination, which involved hair-part examination of 8 louse predilection sites, was conducted on each selected calf to determine prevalence and intensity of infestation. The long-nosed sucking louse, Linognathus vituli, was the most commonly encountered species. This species infested from 57.8\% to 95.6\% of the calves selected from both MS and SS calves during both winters. Louse index values, indicating intensity of infestation, for L. vituli ranged from 1 to 243 lice per animal. The chewing louse, Bovicola bovis, was present on MS and SS calves only in the winter of 1998-99. The louse index values for B. bovis ranged froml to 230 lice per animal.Mixed infestations of the L. vituli and B. bovis were common. The little blue cattle louse, Solenopotes capillatus, was present only on the SS calves in the winter of 1997-98. The short-nosed sucking louse, Haematopinus eurysternus, was present at very low intensities, 1-2 lice per animal, on 2.6\% to 4.4\% of the MS calves during both winters. Comparison of results from the current study with published literature suggests that efforts to determine the economic impact of louse infestations are confounded by the lack of a uniform method to assess louse population levels.

}, keywords = {Anoplura, Bovicola, Chewing lice, Haematopinus, Solenopotes}, url = {http://www.phthiraptera.info/sites/phthiraptera.info/files/46980.pdf}, author = {Douglas D. Colwell and Clymer,Bill and Booker,Calvin W. and Guichon,P. Timothy and Jim,G. Kee and Schunicht,Oliver C. and Wildman,Brian K.} } @article {46123, title = {The importance of different pig diseases in the Netherlands}, journal = {Tijdschrift voor diergeneeskunde}, volume = {126}, year = {2001}, note = {LR: 20031114; JID: 0031550; ppublish}, month = {2001}, pages = {2 - 8}, address = {Netherlands}, abstract = {As part of the project {\textquoteright}Clean pigs{\textquoteright}, IPG Institute for Pig Genetics BV made an inventory of the impact of different diseases on the Dutch pig industry. An expert panel assessed the importance of the different diseases with regard to public health, farm economy, the pig sector and export sales. The possibilities for the diagnosis of the different pathogens were listed and the goal for the next years, was set. Diseases were classified into three categories, according to their importance for the Dutch pig industry (Table 2). The diseases that can be eradicated are Salmonella (only specific strains), Pasteurella multocida DNT + PAR), Actinobacillus pleuropneumoniae, Haematopinus suis (lice) and Sarcoptes scabei (var. suis) (mange). National introduction of list A en most list B diseases of the OIE classification must be prevented.}, keywords = {Actinobacillus, Animal Husbandry/economics, animals, Anoplura, English Abstract, Lice Infestations/economics/prevention \& control/veterinary, Netherlands/epidemiology, Pasteurella, public health, Salmonella, Sarcoptes scabiei, Scabies, Swine, Swine Diseases/diagnosis/economics/epidemiology/prevention \& control}, isbn = {0040-7453}, author = {Smits,J. M. and Merks,J. W.} } @article {46114, title = {Eradication of lice in cattle}, journal = {Acta Veterinaria Scandinavica}, volume = {42}, year = {2001}, note = {LR: 20041117; JID: 0370400; 0 (Insecticides); 0 (Pyrethrins); 52820-00-5 (decamethrin); 69770-45-2 (flumethrin); ppublish}, month = {2001}, pages = {81 - 89}, address = {Denmark}, abstract = {The purpose of this field study was to develop and evaluate eradication as a strategy to control lice in cattle. Thirty-three herds of cattle were selected and observed during a period of two and a half years. Before eradication, biting lice (Damalinia bovis) were present in 94\% of the herds and 27\% of the animals. Sucking lice (Linognathus vituli) were present in 42\% of the herds and 5\% of the animals. These levels were very similar to those reported from other countries in Northern Europe. The eradication strategy was successful in 28 of 33 herds, but lice were still present in 5 herds 3 to 6 months after treatment. Biting lice were present in all these 5 herds, sucking lice were present in 3 herds. During the next 12 months, nine of the 28 herds were reinfected with lice. Six herds were reinfected with just biting lice, 2 herds with just sucking lice and one herd was reinfected with both. There was no significant difference between the 2 louse species regarding the risk of unsuccessful eradication or reinfection. The only significant risk factor for reinfection was either purchase of livestock or use of common pasture, combined with failure in pre-treatment of newly introduced animals.}, keywords = {animals, Anoplura, cattle, Cattle Diseases, insecticide, Lice Infestations/drug therapy/epidemiology/prevention \& control/veterinary, Mallophaga, Norway/epidemiology, Pilot Projects, Prevalence, Pyrethrum, risk factors}, isbn = {0044-605X}, author = {Nafstad,O. and Gronstol,H.} } @article {46109, title = {Keratoconjunctivitis and periorbital papillomatosis associated with heavy periorbital infestation by the tail louse Haematopinus quadripertusus in heifers}, journal = {Journal of Veterinary Medicine}, volume = {48}, year = {2001}, month = {2001}, pages = {133 - 136}, abstract = {Heifers (Israeli-Holstein), aged 12-18 months, permanently maintained in open barns on an inadequate nutritional regime were found to be moderately to heavily infested by Haematopinus quadripertusus, the tail louse. The severely infested heifers showed keratoconjunctivitis and periorbital papillomatosis. Two treatments with an alpha-cypermethrin pour-on product 14 days apart controlled the lice, and were followed by alleviation of the inflammation and regression of the papillomas.}, keywords = {animals, Anoplura, cattle, Cattle Diseases, insecticide, Lice Infestations/drug therapy/veterinary, Pyrethrum}, isbn = {0931-1793}, author = {Yeruham,I. and Hadani,A. and Perl,S. and Elad,D.} } @article {46098, title = {Prevalence of sucking and chewing lice on cattle entering feedlots in southern Alberta}, journal = {Canadian Veterinary Journal}, volume = {42}, year = {2001}, note = {LR: 20031114; JID: 0004653; ppublish}, month = {2001}, pages = {281 - 285}, address = {Canada}, abstract = {

Beef calves from 2 sources entering southern Alberta feedlots in the winters of 1997-98 and 1998-99, were surveyed for the presence of lice. A random sample of multiple source (MS), that is, auction market-derived, calves entering commercial feedlots and single source (SS) calves entering a backgrounding feedlot were examined for the presence of lice at entry to the feedlot. A standardized examination, which involved hair-part examination of 8 louse predilection sites, was conducted on each selected calf to determine prevalence and intensity of infestation. The long-nosed sucking louse, Linognathus vituli, was the most commonly encountered species. This species infested from 57.8\% to 95.6\% of the calves selected from both MS and SS calves during both winters. Louse index values, indicating intensity of infestation, for L. vituli ranged from 1 to 243 lice per animal. The chewing louse, Bovicola bovis, was present on MS and SS calves only in the winter of 1998-99. The louse index values for B. bovis ranged from 1 to 230 lice per animal. Mixed infestations of the L. vituli and B. bovis were common. The little blue cattle louse, Solenopotes capillatus, was present only on the SS calves in the winter of 1997-98. The short-nosed sucking louse, Haematopinus eurysternus, was present at very low intensities, 1-2 lice per animal, on 2.6\% to 4.4\% of the MS calves during both winters. Comparison of results from the current study with published literature suggests that efforts to determine the economic impact of louse infestations are confounded by the lack of a uniform method to assess louse population levels.

}, keywords = {Alberta, Animal Husbandry/methods/standards, animals, Anoplura, cattle, Cattle Diseases, Housing, Animal, Lice Infestations/epidemiology/parasitology/veterinary, Mallophaga, Prevalence}, isbn = {0008-5286}, author = {Douglas D. Colwell and Clymer,B. and Booker,C. W. and Guichon,P. T. and Jim,G. K. and Schunicht,O. C. and Wildman,B. K.} } @article {46072, title = {Persistent efficacy of doramectin topical solution against induced infestations of Bovicola bovis and Solenopotes capillatus}, journal = {Veterinary parasitology}, volume = {102}, year = {2001}, note = {LR: 20031114; JID: 7602745; 0 (Anthelmintics); 0 (Solutions); 117704-25-3 (doramectin); 70288-86-7 (Ivermectin); ppublish}, month = {2001}, pages = {235 - 241}, address = {Netherlands}, abstract = {A study was conducted in two locations, Wyoming and Wisconsin, USA, to evaluate the persistent efficacy of doramectin topical solution at a dose rate of 500 microg/kg body weight against artificially induced infestations of Bovicola bovis and Solenopotes capillatus on cattle. At each location, lice-free beef calves were individually housed and randomly allocated to treatment. Both B. bovis and S. capillatus were transferred from untreated donor animals to doramectin-treated cattle at the end of 35, 63, 91 or 126 day post-treatment periods. Cattle treated with a saline pour-on served as the control. Based on the geometric means of lice counts 2 weeks following transfer, the persistent efficacy of a single treatment with doramectin topical solution against induced infestations of B. bovis was 100.0, 100.0, 99.5, and 100.0\% at post-treatment days of 35, 63, 91, and 126, respectively. Persistent efficacy against induced infestations of S. capillatus, for the same intervals, were 100.0, 94.9, 86.3, and 74.9\%.}, keywords = {Administration, Topical, animals, Anoplura, anthelmintic, cattle, Cattle Diseases, Ivermectin/administration \& dosage/analogs \& derivatives/pharmacology, Lice Infestations/drug therapy/prevention \& control/veterinary, Mallophaga, parasite, Random Allocation, Solutions, Time Factors, Treatment Outcome}, isbn = {0304-4017}, author = {Lloyd,J. E. and Kumar,R. and Grubbs,M. A. and Waggoner,J. W. and Norelius,E. E. and Smith,L. L. and Brake,A. C. and Skogerboe,T. L. and Shostrom,V. K.} } @article {46073, title = {Hoplopleura janzeni n. sp. (Phthiraptera: Anoplura), a new sucking louse from a Central American swimming mouse}, journal = {Journal of Parasitology}, volume = {87}, year = {2001}, month = {2001}, pages = {1409 - 1413}, abstract = {

Both sexes of a new species of sucking louse Hoplopleura janzeni (Phthiraptera: Hoplopleuridae) are described and illustrated from the Central American ichthyomyine swimming mouse Rheomys raptor (Rodentia: Muridae) collected in Costa Rica. The morphology of the new species is compared with that of Hoplopleura exima Johnson, the only other species of sucking louse known to parasitize an ichthyomyine rodent. Hoplopleura janzeni is unique in having posteriorly directed spurs on the first antennal segment, the fore- and midcoxae, and the hind femora of both sexes.

}, keywords = {animals, Anoplura, atax, Costa Rica, Muridae/parasitology, n.sp., Research Support, U.S. Gov{\textquoteright}t, P.H.S., Swimming, Tropical Climate}, url = {https://phthiraptera.myspecies.info/sites/phthiraptera.info/files/44889.pdf}, author = {Lance A. Durden and Timm,Robert M.} } @article {43308, title = {Polyplax guatemalensis sp. n. (Phthiraptera: Anoplura), a new sucking louse from Peromyscus grandis, a montane cloud forest rodent from Guatemala}, journal = {Folia Parasitologica (Praha)}, volume = {48}, year = {2001}, month = {2001}, pages = {69 - 72}, abstract = {

The adult male and female of Polyplax guatemalensis sp. n. are described from the sigmodontine murid rodent Peromyscus grandis Goodwin collected in the Reserva de Biosfera, Sierra de las Minas, Guatemala, at an elevation of 2,200 m. The new species extends the number of known native species of Polyplax in the New World to four with none of them recorded south of Panama. Polyplax guatemalensis is morphologically most closely related to Polyplax auricularis which parasitises a cluster of closely related New World sigmodontine rodents from Canada to Panama. These two species can be distinguished from all other known species of Polyplax by the presence of partially overlapping, subtriangular, anterior abdominal plates in both sexes. Polyplax guatemalensis can be separated from P. auricularis by the abundant tergal abdominal setae and longer pseudopenis in males, and by the presence of one fewer anterior abdominal, subtriangular tergite and sternite in females.

}, keywords = {Anoplura, Guatemala, new species, peromyscus, Phthiraptera, Polyplax, sucking louse}, url = {https://folia.paru.cas.cz/artkey/fol-200101-0010_Polyplax_guatemalensis_sp_n_Phthiraptera_Anoplura_a_new_sucking_louse_from_Peromyscus_grandis_a_montane.php}, author = {Lance A. Durden and Eckerlin,Ralph P.} } @article {39768, title = {Efficacy of chlorfenapyr (AC 303630) experimental pour-on and CyLence formulations against naturally acquired louse infestations on cattle in New York}, journal = {Veterinary Parasitology}, volume = {97}, year = {2001}, month = {2001}, pages = {123 - 129}, abstract = {The four chlorfenapyr formulations examined provided 100\% control of both the nymphal and adult stages of naturally acquired Bovicola bovis (L.) on cattle up to 35 days after application. Treatment with 6 mg chlorfenapyr per kg BW in a 0.12 mi per kg BW formulation was as effective as treatment with CyLence(TM) (cyfluthrin) in controlling naturally acquired Solenopotes capillatus (Enderlein) on cattle for 35 days. Percent reduction was never greater than 90\% with any chlorfenapyr application against Linognathus vituli (L.). However, percent reduction was greater than 90\% with CyLence(TM) from day 21 through 35. No adverse effects were noted on cattle from any of the chlorfenapyr dosages used. (C) 2001 Elsevier Science B.V. All rights reserved.}, keywords = {Anoplura, Bovicola, Calves, capillatus, cattle, Chewing lice, Haematopinidae, lepidoptera, lice, Linognathus, little, longnosed, louse, Mallophaga, noctuidae, Solenopotes, susceptibility, trichodectidae}, url = {http://www.phthiraptera.info/sites/phthiraptera.info/files/2196.pdf}, author = {Kaufman,P. E. and Rutz,D. A. and Doscher,M. E. and Albright,R.} }