THE RELATION BETWEEN ENGORGEMENT AND DROPPING OF <i>BOOPHILUS MICROPLUS</i> (CANESTRINI) (IXODIDAE) TO THE ASSESSMENT OF TICK NUMBERS ON CATTLE

Wharton, R. H.; Utech, K. B. W.

doi:10.1111/j.1440-6055.1970.tb00788.x

Cited by 210 publications

(80 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The EPG was assessed using the Gordon and Whitlock (1939) method. Tick counts were performed according to Wharton and Utech (1970) and horn fly counting according to Bianchin and Alves (2002); D. hominis larvae were counted in the whole body. Daily, during protein supplementation in the morning the two groups, treated with neem oil and acaricide formulation were monitored for reinfestation by H. irritans.…”

Section: Weight Gain and Parasitological Methodsmentioning

confidence: 99%

Weight gain and control of endo- and ectoparasites of beef heifers treated with allopathic, herbal and homeopathic drugs

Catto

Bianchin

Feijó

et al. 2013

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

The aim of this study was to evaluate the efficacy of herbal, homeopathic and allopathic treatments for parasites in beef heifers during two experimental cycles of 318 and 313 days. Treatments: NC -negative control (untreated); HH -treated with homeopathic preparation Homeo bovis Parasitário  ; PC -(positive control) -treated with 10% moxidectina  and an acaricide formulation of cypermethrin, chlorpyrifos and piperonyl butoxide  ; HF -treated with homeopathic preparation Fator C&MC  ; and FN -treated with neem cake (torta de neem  ) and with neem oil (óleo de neem  ). Parasite egg count (EPG), horn fly (Haematobia irritans) and tick (Rhipicephalus (Boophilus) microplus) assessment and animal weighting were performed at 28-day intervals. Blood samples were collected at the first cycle to assess the immune response. Horn fly infestation was not affected by any treatment (P>0.05). The mean number of ticks, which was low in both cycles, was lower (P<0.05) in the first cycle in animals that received PC treatment. In both experimental cycles, the mean EPG of the PC-treated animals was lower (P<0.05) than the animals receiving other treatments. Treatments had no effect on the immune response (P>0.05). The animals treated with allopathic drugs were 22 to 30 kg heavier (P<0.05) than untreated animals or animals treated with alternative drugs.Keywords: Beef cattle, tick, nematodes, horn fly, anthelmintics, alternative control. ResumoO objetivo do trabalho foi avaliar a eficácia de tratamentos fitoterápicos, homeopáticos e alopáticos contra ecto e endoparasitas na recria de novilhas, em dois ciclos experimentais subsequentes de 318 e 313 dias. Tratamentos: CN -controle negativo -não tratado; tratamento HH -tratado com homeopático Homeo bovis Parasitário  ; tratamento CP -controle positivo -tratado com moxidectina 10%  e uma formulação acaricida contendo cypermetrina, clorpirifós e butóxido de piperonila  ; tratamento HF -tratado com homeopático Fator C&MC  e tratamento FN -tratados com torta de neem  e com óleo de neem  . A contagem de ovos nas fezes (OPG), a infestação por Haematobia irritans, Rhipicephalus (Boophilus) microplus e pesagem dos animais foram realizadas em intervalos de 28 dias. No primeiro ciclo foi coletado sangue para avaliar a resposta imume. A infestação por mosca-dos-chifres não foi influenciada por nenhum dos tratamentos (P>0,05). Nos dois ciclos o número médio de carrapatos foi baixo e apenas no primeiro foi menor (P>0.05) no tratamento CP em relação aos demais. A média de OPG no tratamento CP foi mais baixa que nos demais tratamentos nos dois ciclos experimentais (P<0,05). Não houve efeito de tratamentos na resposta imune. Os animais do tratamento CP ganharam entre 22 a 30 kg de peso vivo a mais (P<0,05) que os não tratados ou tratados com medicamentos alternativos.

show abstract

Section: Weight Gain and Parasitological Methodsmentioning

confidence: 99%

Weight gain and control of endo- and ectoparasites of beef heifers treated with allopathic, herbal and homeopathic drugs

Catto

Bianchin

Feijó

et al. 2013

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

show abstract

“…The absolute number of ticks determines the level of resistance of each animal. The tick count was based on the procedure adopted by Wilkinson (1962) and modified by Wharton and Utech (1970), in which all engorged female ticks of 4.5 to 8.0 mm in diameter are counted on the right side of each animal. The counts of adult female ticks were done on the 21st day after infestation.…”

Section: Animals Artificial Tick Infestation and Assessment Of Resismentioning

confidence: 99%

Expressed sequenced tags profiling of resistant and susceptible Gyr x Holstein cattle infested with the tick Rhipicephalus (Boophilus) microplus

Nascimento

Machado

Guimarães³

et al. 2011

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. Tick resistance in cattle is mainly found in zebu (Bos indicus) animals, although it is also present in some taurine (B. taurus) breeds. In order to characterize functional genes involved in tick resistance/susceptibility in cattle, two cDNA libraries were generated using skin tissues of selected Holstein x Gyr animals. A total of 2700 high-quality reads from both resistant and susceptible cDNA were assembled into 458 sequences (contigs) and 834 singletons, with a mean size of 447.7 nucleotides. Assignment of homologous proteins by BLASTX revealed 790 (61.1%) and 300 (23.2%) hits in resistant and susceptible cDNA, respectively; 121 of these hits matched bovine proteins. A total of 502 (38.9%) unique sequences were found to have no significant homology with known sequences and were classified as novel sequences. In general, the most abundant sequences consisted of those coding for hypothetical proteins whose function had not yet been determined, in addition to ribosomal proteins, binding proteins and structural proteins, such as keratin and collagen. The most abundant protein found was collagen type III alpha, although ribosomal proteins accounted for half of the 40 most frequent hits. In addition, five matches within the top 40 best hits corresponded to immune response proteins. These sequences could be used for future studies on functional genomics of cattle tick resistance as well as for genomic sequencing projects.

show abstract

“…Resistance to the cattle tick was evaluated by counting the number of ticks in naturally infested animals using the method described by Wharton and Utech (1970). All the fully or partially engorged females of R. (B.…”

Section: Introductionmentioning

confidence: 99%

“…(B.) microplus than B. taurus breeds, although this resistance can vary between breeds and individuals (SEIFERT, 1971;WHARTON;UTECH, 1970;SILVA et al, 2014). An animal's resistance to tick infestation has high heritability, with estimated rates of 39% -49% for B. taurus (WHARTON et al, 1970) and 82% for B. indicus (SEIFERT, 1971).…”

mentioning

confidence: 99%

Risk factors related to resistance to Rhipicephalus (Boophilus) microplus and weight gain of heifers

2015

View full text Add to dashboard Cite

The aim of the present study was to evaluate the influence of age and genetics in dairy heifers on resistance to the cattle tick Rhipicephalus (Boophilus) microplus and correlate these parameters with weight gain. Twenty-two heifers were evaluated from birth up to two years of age. Resistance to the cattle tick was evaluated by counting the number of engorged female ticks and subjective qualification of the larvae and nymph infestation. The animals were weighted in the first 24 hours after birth and at six, 12, 18 and 24 months of age. The average tick count and weight gain were compared by Tukey's test at 5% significance. Subsequently, linear regression was performed to verify the strength of the association between the risk factors age and genetics and infestation by R. ResumoO objetivo do estudo foi conhecer a influência da idade e da genética sobre a resistência ao carrapato Rhipicephalus (Boophilus) microplus e correlacionar estes parâmetros com ganho de peso de bezerras de origem leiteira. Foram avaliadas 22 bezerras desde o nascimento até dois anos de idade. A avaliação da resistência foi realizada por meio da contagem de teleóginas ingurgitados e qualificação subjetiva da infestação por larvas e ninfas. Os animais foram pesados nas primeiras 24 horas pós-nascimento, aos seis, 12, 18 e 24 meses de idade. A comparação das médias das contagens de carrapatos e ganho de peso foi realizada pelo teste Tukey a 5% de significância. Posteriormente foi realizada regressão linear para verificar a força da associação entre os fatores de risco idade e genética e a infestação por R. (B.)

show abstract

THE RELATION BETWEEN ENGORGEMENT AND DROPPING OF BOOPHILUS MICROPLUS (CANESTRINI) (IXODIDAE) TO THE ASSESSMENT OF TICK NUMBERS ON CATTLE

Cited by 210 publications

References 6 publications

Weight gain and control of endo- and ectoparasites of beef heifers treated with allopathic, herbal and homeopathic drugs

Weight gain and control of endo- and ectoparasites of beef heifers treated with allopathic, herbal and homeopathic drugs

Expressed sequenced tags profiling of resistant and susceptible Gyr x Holstein cattle infested with the tick Rhipicephalus (Boophilus) microplus

Risk factors related to resistance to Rhipicephalus (Boophilus) microplus and weight gain of heifers

Contact Info

Product

Resources

About