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Infestation
About: Infestation is a research topic. Over the lifetime, 8308 publications have been published within this topic receiving 82305 citations.
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37 citations
TL;DR: The prevalence rates of the head louse infestation in school children in Kangwon-do, Korea in December 1990 was revealed, with the significance of worm positive rate because it represents the potentiality of active transmission.
Abstract: We tried to reveal the prevalence rates of the head louse infestation in school children in Kangwon-do, Korea in December 1990. A total of 912 children in four primary schools was examined. The positive rate for adults and/or nits of Pediculus humanus capitis was 37.2%. One school was followed-up without specific intervention. There was no significant change of the prevalence rate 6 months after the first examination from 66.0% to 57.3%. We could see the persistent infestation rate if there was no intervention. We are emphasizing the significance of worm positive rate because it represents the potentiality of active transmission.
37 citations
TL;DR: Evaluated the parasitic fauna and the host-parasite relationship in Colossoma macropomum farmed in cages of Matapi River, municipally of Santana, State of Amapa, in eastern Amazon, Brazil, finding higher infestation levels were caused by protozoans I. multifiliis and P. pillulare and no effects of parasitic infestation rates on fish health were observed.
Abstract: The purpose of this paper was to evaluate the parasitic fauna and the host-parasite relationship in Colossoma macropomum farmed in cages of Matapi River, municipally of Santana, State of Amapa, in eastern Amazon, Brazil. Of 60 specimens of tambaqui examined, 96.7% were parasitized by protozoans Ichthyophthirius multifiliis (Ciliophora) and Piscinoodinium pillulare (Dinoflagellida), monogenoideans Mymarotheciun boegeri and Anacanthorus spathulatus (Dactylogyridae), and leeches Glossiphoniidae gen. sp. (Hirudinea). The higher infestation levels were caused by protozoans I. multifiliis and P. pillulare, while the lower infestation levels were caused by leeches. No effects of parasitic infestation rates on fish health were observed. The relative condition factor (Kn) was not correlated with the intensity of parasites found. This was the first record of I. multifiliis and P. pillulare in C. macropomum farmed in cages in the Brazilian Amazon.
37 citations
Journal Article•
TL;DR: A study in northern Queensland aimed to determine if feral pigs disperse viable seeds of the invasive woody weed, Prosopis pallida, and found that P. pallida seed pods were the major component of the dung.
Abstract: A study in northern Queensland aimed to determine if feral pigs disperse viable seeds of the invasive woody weed, Prosopis pallida. Thirty-eight dung samples were collected, 19 from within a dense P. pallida infestation and 19 from an adjacent area that had been mechanically cleared of P. pallida. Ail seeds were removed from the dung and undamaged seed tested for germination and viability. Mean (+/- s.e.) dry weight of collected dung samples averaged 51.1 (+/- 2.9)g, with no difference between infested and cleared sites. Visual estimation of the contents of these samples showed that P. pallida seed pods were the major component of the dung, averaging 69 (+/- 4)% from samples collected within dense infestation and 57 (+/- 4)% for those from the adjacent area. Fifty-eight % and 42% of the pig dung samples collected from within and adjacent to the infestation, respectively, contained viable seed. No significant difference (P>0.05) was found between the number of viable seeds present in dung samples from the two areas; an average of 2.4 seeds per sample was recorded with a range of 0-19. The germinability of this seed was high, with 70% of all viable seed germinating within 21 days and the remainder germinating immediately after scarification.
37 citations
TL;DR: Comparison of hematological changes showed remarkable differences between infested and non-infested animals, in the form of low values of infestedAnimals, whereas an increment in biochemical parameter values was observed in tick- infested animals.
Abstract: The current research was conducted to define the epidemiological parameters related to the prevalence and associated risk factors of tick infestation in buffaloes in the Toba Tek Singh District of central Punjab, Pakistan. The prevalence of ticks on buffaloes was 31.21 % (352/1,128). Among the species of ticks, the prevalence of Hyalomma marginatum (75.56 %; 266/352) was higher (P 0.05). With regard to management and husbandry practices, the prevalence of ticks was higher in animals kept on uncemented flooring (54.55 %; 192/352; OR = 1.90) followed in order by partially cemented (28.69 %; 101/352; OR = 1.71) and fully cemented flooring (16.76 %; 59/352). With regard to feeding systems, grazing animals (64.20 %; 226/352) were more burdened compared to stall-fed animals (35.80 %; 126/352). The highest tick prevalence was recorded in closed housing systems (52.27 %; 184/352), followed by semi-closed (34.09 %; 120/352; OR = 1.53), and open housing systems (13.64 %; 48/352). Rope-tied animals (70.73 %; 249/352) were more parasitized (P > 0.05) than open (29.27 %; 103/352). Prevalence in the study district was highest in tehsil Kamalia followed in order by T.T. Singh and Gojra. The primary body area of infestation by ticks (head, neck, ear, dewlap, back, abdomen, foreleg, shoulder, hind leg, congenital areas, and tail) ranged from highest at inside thigh (17 %) to lowest at rump. In the present survey, the highest prevalence was recorded in July and lowest in December. Comparison of hematological changes showed remarkable differences between infested and non-infested animals, in the form of low values of infested animals, whereas an increment in biochemical parameter values was observed in tick-infested animals. The present study provides significant data to enhance planning for tick control program in the study area.
37 citations