02006nas a2200229 4500008004100000022002500041245009500066210006900161260001600230300001200246490000700258520131000265653001201575653001701587653000901604653001501613653001001628100003101638700002401669700001501693856006801708 2022 eng d a1313-3543, 1311-147700aTests on the efficacy of amitraz, ivermectin and eprinomectin for control of lice in goats0 aTests on the efficacy of amitraz ivermectin and eprinomectin for cJan-01-2022 a492-4990 v253 a

Ectoparasitic infestations with Linognathus stenopsis and Bovicola caprae are a serious concern in goat farms, especially during the winter and spring. This study tested the efficacy of three modern insecticide drugs (ivermectin, eprinomectin and amitraz) applied via different routes for control of sucking and chewing lice in naturally co-infected goats. Each of drugs was tested on 30 goats. The animals from the first flock were treated with a single dose of ivermectin, applied subcutaneously at 0.2 mg/kg, the second one received a single spot on treatment with 1 mg/kg еprinomectin and the third flock was treated twice with amitraz, through spraying at a dose of 4 mL/1 L water. The results were evaluated before the treatments and at post treatment days 3, 14 and 60. On post treatment day 60, the application of ivermectin resulted in reduction of Bovicola caprae population by 73.05%, and for that of Linognathus stenopsis: by 92.70%. Eprinomectin demonstrated 100% reduction of both lice. The reduction of L. stenopsis and B. caprae caused by amitraz was by 92.20% and by 98.61% respectively. The macrocyclic lactone eprinomectin showed the highest efficacy (Р<0.05), was not toxic for goats and therefore, may be used as a treatment of choice for lice control.

10aamitraz10aeprinomectin10agoat10aIvermectin10alouse1 aPrelezov, Petyo, Nedelchev1 aNizamov, Nikola, S.1 aVeleva, P. uhttp://tru.uni-sz.bg/bjvm/BJVM-September%202022%20p.492-499.pdf03562nas a2200229 4500008004100000022001400041245011500055210006900170260001600239490000600255520280300261653001303064653004403077653001503121653002003136653001503156100002003171700002503191700002003216700002303236856007303259 2022 eng d a2297-176900aEpidemiological and therapeutic studies on sheep lice in Sayint district, South Wollo Zone, Northeast Ethiopia0 aEpidemiological and therapeutic studies on sheep lice in Sayint  cNov-03-20220 v93 a

An epidemiological (cross-sectional) and therapeutic (randomized controlled field trial) study was conducted on sheep lice in Sayint district, South Wollo, Northeast Ethiopia. The aim of the study was to (i) quantify the magnitude of sheep lice burden and the prevailing lice species, (ii) identify and quantify risk factors affecting lice infestation in sheep, and (iii) evaluate the efficacy of commonly used acaricides (diazinon and ivermectin) against sheep lice infestation. A total of 232 randomly selected sheep, 15 naturally infested sheep, and 80 viable Bovicola ovis lice were used for epidemiological, in vivo, and in vitro based therapeutic studies, respectively. Three naturally infested treatment groups each with five sheep (Group I—treated with diazinon, Group II—treated with ivermectin, and Group III—untreated/control) were used for in vivo therapeutic study. Lice count for the corresponding treatment groups was conducted on weekly basis using clinical and parasitological examinations. We used logistic regression to quantify the association between different putative risk factors and lice infestation, and the independent t-test and one-way ANOVA to compare the within and between treatment group mean lice count variations. The overall prevalence of sheep lice in the study area was 48.3%, where Bovicola ovis (83%) was the dominant lice species. Hair length, body condition, agroecology, and season were significantly (P &lt; 0.05) associated with sheep lice infestation. Analysis of variance revealed that mean lice count significantly (P &lt; 0.05) varies between treatment groups. A significant (P &lt; 0.05) low mean lice cunt was recorded in diazinon- and ivermectin-treated groups when compared to untreated group. The in vivo efficacy of ivermectin (81%) was lower than diazinon (99%) when compared to the efficacy standard limit (98–100%). However, no significant mean lice count variation was recorded between the two groups. In vivo (99%) and in vitro (95%) assay evidence revealed that diazinon was highly effective for the treatment of sheep lice. According to this study, it can be concluded that the magnitude of sheep lice burden in Sayint district was found to be high and this could have a potential negative impact on sheep productivity and health performances. Thus, applying an appropriate intervention measure including the right choice of effective acaricides could help to control sheep lice in the study area.

10adiazinon10aepidemiological and therapeutic studies10aIvermectin10aSayint district10aSheep lice1 aLegesse, Simegn1 aHailemelekot, Mussie1 aTamrat, Habtamu1 aAlemu, Yeshwas, F. uhttps://www.frontiersin.org/articles/10.3389/fvets.2022.1008455/full02006nas a2200241 4500008004100000022001400041245015000055210006900205260001200274300000800286490000700294520124400301653001201545653001701557653001501574653001601589653002301605100001401628700001701642700002901659700001901688856005701707 2019 eng d a0030-246500aA field study on the efficacy of ivermectin via subcutaneous route against chewing lice (Bovicola caprae) infestation in naturally infested goats0 afield study on the efficacy of ivermectin via subcutaneous route c01-2019 a5pp0 v863 a

Caprine pediculosis is an ectoparasitic disease of great concern among goat farmers in India. It may be caused by either sucking lice or chewing lice; the latter one results in severe skin lesions, leading to production loss. This study evaluated the effectiveness of the macrocytic lactone drug, ivermectin, administered via subcutaneous injection, against chewing lice Bovicola (Damalinia) caprae infestation in naturally infested goats. The study was conducted on 20 goats with severe B. caprae infestation. Animals of group A (n = 10) were treated using a single dose of ivermectin (200 µg/kg body weight) subcutaneously and animals of group B (n = 10) underwent placebo therapy using normal saline. The animals were examined on days 0, 3, 7, 14, 21, 28, 42 and 56 for lice counts. There was 100% elimination of lice in all animals of group A and effective protection from re-infection remained at least for 21 days. Considerable improvement in haematological parameters was also observed by day 21. Based on this study, ivermectin injected via a subcutaneous route can be used effectively for the therapeutic and prophylactic management of chewing lice infestation in goats maintained under an extensive grazing system.

10acaprine10aChewing lice10aIvermectin10aPediculosis10asubcutaneous route1 aAjith, Y.1 aDimri, Umesh1 aGopalakrishnan, Arumugam1 aDevi, Gopinath uhttp://www.ojvr.org/index.php/OJVR/article/view/163501478nas a2200253 4500008004100000245005900041210005900100260000900159300001400168490000700182520075600189653001200945653001100957653002000968653001600988653001501004653001301019653002201032653002301054653001201077653002301089100002001112856009201132 1982 eng d00aControl of psoroptic scabies on calves with ivermectin0 aControl of psoroptic scabies on calves with ivermectin c1982 a329 - 3310 v433 aEleven Hereford or Angus-cross calves slightly to severely infested with common scabies mites (Psoroptes ovis) were treated with 22,23-dihydroavermectin B1a (ivermectin) at dosages given subcutaneously (SC)--300 micrograms/kg; orally--400 micrograms/kg; or IM--50, 100, or 200 micrograms/kg. At 14 days after treatment, live mites were not found on any of the calves treated SC or IM, but live mites were found on all of the orally treated calves at 14 days and on 1 of them at 28 days after treatment. Four nontreated calves retained their mite infestations during the course of the IM test. Biting lice (Bovicola bovis) were eliminated from 1 calf treated SC, but not from calves treated IM. Ear ticks (Otobius megnini) were not noticeably affected.10aanimals10acattle10aCattle Diseases10ainsecticide10aIvermectin10aLactones10aLice/drug effects10aMites/drug effects10aScabies10aTicks/drug effects1 aMeleney, W., P. uhttps://phthiraptera.myspecies.info/content/control-psoroptic-scabies-calves-ivermectin03816nas a2200301 4500008004100000245015600041210006900197260000900266300001400275490000700289520287000296653001003166653001503176653001303191653001103204653001503215653001203230653001403242653001503256653001603271653001203287653001503299653001403314653001003328100001503338700002003353856014103373 1996 eng d00aField efficacy of moxidectin 0.5% pour-on against Chorioptes bovis, Damalinia bovis, Linognathus vituli and Psoroptes ovis in naturally infected cattle0 aField efficacy of moxidectin 05 pouron against Chorioptes bovis  c1996 a119 - 1300 v633 aField efficacy of a pour-on formulation of moxidectin, a macrocyclic lactone endectocide, was evaluated in cattle naturally infested with Chorioptes bovis, Damalinia bovis, Linognathus vituli and Psoroptes ovis. In trial 1, two experimental groups of cattle naturally infested with P. ovis were formed. Group 1 animals remained as untreated controls whereas Group 2 animals were treated on day 0 with 0.5% moxidectin cattle pour-on at a dose of 0.5 mg kg(-1) bw. Efficacy was assessed by (a) taking skin samples from each animal on days -4, 7, 14, 21, 28, 42 and 56 post treatment (PT) and observing the numbers of viable P. ovis mites and (b) clinical examination of animals on days 7, 14, 21, 28, 42 and 56 with the percentage of affected body surface calculated and live body weights recorded for each animal on days 4, 28 and 42. The pour-on formulation of moxidectin yielded excellent efficacy as no live mites were found in treated animals at 14, 21, 28, 42 and 56 days PT, except in one animal from which one adult mite was collected on day 42. Clinical indices showed a regular decrease in the affected body surface area. All untreated animals but one remained positive until day 28 and their clinical condition worsened rapidly. In trial 2, two experimental groups of cattle naturally infested with D. bovis and L. vituli were selected. Group 1 remained as untreated controls whereas Group 2 individuals were treated on day 0 with 0.5% moxidectin cattle pour-on at a dose of 0.5 mg kg(-1) bw. Efficacy was assessed by identifying and counting lice on eight 15 cm hair partings at predefined anatomical sites on days 0, 14, 28 and 42. On the basis of animals cured and lice count reduction, efficacies were 100% on day 14 and from then onwards for both species. In trial 3, 24 animals naturally infested with C. bovis were divided into three experimental groups comprising eight (Group 1), seven (Group 2) and nine animals (Group 3). Group 1 was the untreated control group whereas Groups 2 and 3 animals were treated on day 0 with 0.5% moxidectin cattle pow-on at a dose of 0.25 mg and 0.5 mg kg(-1) bw, respectively. Efficacy was assessed as in trial 1. Skin scrapings were collected on days -3, 7, 14, 28, 42 and 56 PT. A clinical index was calculated for each animal on days 0, 28 and 56 whereas body weights were recorded on days 0 and 56. At 0.25 mg kg(-1) bw, the efficacy of moxidectin cattle pour-on against C. bovis was incomplete. In contrast, at a dose of 0.5 mg kg(- 1) bw, moxidectin cattle pour-on was fully effective and by day 14 PT ail animals were negative for C. bovis and remained so until the end of the trial. No side effects were observed during these three trials. These results indicate that at a dose of 0.5 mg kg(-1) bw, the pour-on formulation of moxidectin is highly effective against C. bovis, D. bovis, L. vituli and P. ovis.10aAcari10aArthropoda10aBovicola10acattle10aChoriaptes10aControl10adamalinia10aIvermectin10aLinognathus10amethods10amoxidectin10aPsoroptes10asheep1 aLosson, B.1 aLonneux, J., F. uhttps://phthiraptera.myspecies.info/content/field-efficacy-moxidectin-05-pour-against-chorioptes-bovis-damalinia-bovis-linognathus-vitul