Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 22

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The aim of the study was to determine the prevalence and intensity of gastrointestinal parasites in horses from various management systems. The study included 296 horses of different breeds and ages (from 6 months to 20 years), of both sexes, coming from various management systems: group 1 – horses using natural pastures, group 2 – horses pastured on field pastures created by man, group 3 – horses using sand areas. Faeces samples were collected directly from the rectum 1–2 days before worming. Each sample was examined macro- and microscopically (McMaster method). The number of oocysts/eggs per gram of faeces (OPG/EPG) and parasite abundance (average representation of parasites in relation to all animals). The results were subjected to statistical analysis using the Kruskal-Wallis test. Total prevalence of parasites in all groups was 66.89%: E. leucarti 0.68%; Anoplocephalidae 4.73%, P.equorum 9.46% and Strongylidae 64.19%. Total prevalence per group was the following: 1 – 57.43%; 2 – 26.69%; 3 – 6.38%. In all management systems, the dominating parasites belonged to Cyathostominae (group 1 – 77.65%, group 2 – 70.89%, group 3 – 4.25%). The prevalences of P. equorum, Anoplocephalidae, E. leucarti in each group were as follows: group 1 – 10.59; 3.53; 0.59%; group 2 – 11.39; 10.13; 1.27%; group 3 – 2.13; 0; 0%.The average intensities of Strongylildae, P. equorum, Anaplocephalidae and E. leucarti in groups were as follows: group 1 – 606.44; 519.44; 50; 50; group 2 – 472.32; 261.11; 62.5; 50; group 3 – 1150; 450; 0; 0. On the other hand, the average abundances in each group were the following: group 1 – 473.67; 55; 1.76; 0.29; group 2 – 334.81; 29.75; 6.33; 0.63; group 3 – 48.94; 9.57; 0; 0. The statistical analysis did not reveal statistically significant differences between the management system and invasion intensity. However, the analysis, taking into consideration a correlation between the management system and abundance, revealed statistically significant differences. The differences were observed between groups 1 and 3 (pi = 0.0000001) and between groups 2 and 3 (pi = 0.0000001).
Faecal samples from 716 cats from Poland, were examined for lungworm larvae (Metastrongyloidea) by flotation, sedimentation and Baermann techniques between January 2016 and April 2019 year. In total, 1.1% (8/716; CI ± 95% 0.3-1.9) of cats shed lungworm larvae. In the animals examined, infections with Aelurostrongylus abstrusus predominated (7 positive samples), while larvae of Troglostrongylus brevior were detected in only one sample. These invasions were more prevalent in animals under 6 months of age (3.0%) (6/201; CI ± 95%; 0.6-5.4) than in those older than one year (0.4%) (2/515; CI ± 95% 0.0-0.9). Overall, a distinct seasonal pattern was apparent in the detection of infected cats, but annual volatility was not observed. A relatively large proportion of lungworm-infected cats (4 out of 8) had pulmonary syndromes, which indicates that these parasitic diseases should be considered in differential diagnosis of any inflammations of the respiratory system, especially in young animals.
Apart from roundworms, Ancylostomatidae nematodes are presently the most frequently observed nematodes in dogs in Poland, with two species described so far: Uncinaria stenocephala and Ancylostoma caninum. The study aimed to determine the hookworm species found in dogs in Poland, with special emphasis on the Lublin region. The study material consisted of fecal samples collected from 500 dogs from the area of the Lublin voivodeship. With the use of microscope methods, parasite eggs were found in 56.4% of the samples, dominated by the Ancyclostomidae nematode (26.8%). The isolated hookworm eggs were subject to morphometric measurements, giving a mean length of 77.60 µm and width of 44.25 µm (±SD ±6.01 and ±4.54 respectively) within the range 67-91 × 36-56 µm. The hookworm larvae that hatched from the samples were subject to molecular analysis (72 samples) and all were identified as U. stenocephala. In the area of the Lublin voivodeship U. stenocephala is the dominant hookworm species in dogs.
The aim of the study was to determine the prevalence and invasion intensity of gastrointestinal parasites in calves from small and middle-sized farms, with a special focus on invasions of chosen protozoa. The analysis included 150 calves from 2 weeks to 5 months of age. The calves came from 30 individual farms with up to 50 cattle managed in a confined system or confined-pasture system. Three types of farms were established: I: up to 20 heads; II: up to 30 heads, and III: up to 50 heads. The feces samples for the analyses were collected directly from the rectum. Each sample was tested using macroscopic and microscopic methods (the McMaster technique, the standard flotation method and the sedimentation method according to Żarnowski and Josztowa). The numbers of oocysts/cysts/eggs per 1 gram of feces (OPG/CPG/EPG) were established. The feces of 94 calves no older than 8 weeks which exhibited traits of diarrhea were analyzed with Bio-X Cryptosporidium parvum Elisa Kit (Kit for antigenic diagnosis of Cryptosporidium parvum by Elisa in bovine feces). The results were subjected to statistical analysis using the Kruskal-Wallis test. The total prevalence of parasites in all groups was 35.33%. The dominating invasion (26%) was with protozoa belonging to Eimeria (most commonly E. bovis, E. zuerni and E. aubernensis). This was followed by Buxtonella sulcata (6.67%), Cryptosporidium parvum (7.45%; Elisa test), Strongyloides papillosus (4.67%) and gastrointestinal nematodes (2.67%). The fewest calves infected with parasites were in Group I, where only the invasions of protozoa were detected. The parasitic infection rates for group II and III were twice and thrice higher, respectively, than for group I. In Groups II and III, nematodes were found apart from protozoa. In all three groups the dominating invasion was Eimeria spp. (Group I: 20%, II: 24%, III: 34%). The prevalence for B. sulcata, S. papillosus, and gastrointestinal nematodes in the groups was as follows: Group I – 2; 0; 0%; Group II – 8; 8; 0%; Group III – 10; 6; 8%, respectively. In the calves aged up to eleven weeks of life, the dominating invasions were Eimeria spp., Cryptosporidium parvum and S. papillosus, while in the calves of 4-5 months of age, B. sulcata and gastrointestinal nematodes prevailed. The average invasion intensities were as follows: Eimeria spp.: 24414 OPG, B. sulcata: 78 CPG, S. papillosus: 86 EPG, and gastrointestinal nematodes: 138 EPG. In the groups, the results were the following: Eimeria spp.: 94,512 (550-414,000); 271 (100-600); 222 (50-500) OPG., B. sulcata 50; 75 (50-100); 70 (50-100) CPG; S. papillosus 0; 75 (50-100); 90 (50-150) and gastrointestinal nematodes: 0; 0; 138 (50-250) EPG. In the calves from all groups, the dominating invasions were caused by parasites belonging to one taxon (genus), they constituted 90%, 80% and 89%, respectively. The statistical analysis did not reveal statistically significant differences between the management system and invasion intensity of Eimeria spp.
The aim of the study was to evaluate the efficiency of various methods of antiparasitic prophylaxis using a conventional chemical agent and a formulation containing plant essential oils. The animal material consisted of 139 mother ewes of two synthetic prolific meat lines: BCP and SCP. During the entire experiment the animals were kept in an indoor management system with uniform environmental conditions. The experiment included ewes lambing within the period of 12 consecutive days. Using the results of coproscopic tests performed after lambing, the animals were randomised into three study groups: Group A – wormed with an albendazolecontaining preparation (50 sheep); Group L – receiving a lick with antiparasitic essential oils (48 sheep); and Group C – control group, not wormed (41 sheep). Two antiparasitic agents were used. A chemical agent containing albendazole. The procedure was performed on day 35 after lambing, and the dose administered was 5 mg of the active substance per kg bw, which corresponded to 0.5 ml orally, per 10 kg bw. A natural worming agent was administered in the form of licks containing essential oils of Thymus vulgaris, Allium sativum, Artemisia absinthium, Dryopteris filixmax, Tanacetum vulgare, Cucurbita pepo, Chenopodium ambrosioide, Inula helenium, Peumus boldo and Corallina rubens. The licks were made available to animals on day 21 after lambing. The experiment involved parasitologic tests aimed at the determination of estimated intensity (based on OPG and EPG data) and prevalence of invasions of gastrointestinal parasites in mother ewes. The study material was faeces collected from the rectum on the following dates: after lambing, and on day 28, 42, 56, 70 and 100 of a lamb’s life. The observations proved that the formulation based on natural plant ingredients had a beneficial influence on the reduction of prevalence of Eimeria and Capillaria. It was also shown that the albendazole-containing chemical preparation is highly efficient in reducing the prevalence of Trichostrongylidae, Nematodirus, as well as Capillaria.
Invasions of protozoa belonging to the genus Eimeria are a global problem in sheep farming. The clinical course of eimeriosis occurs almost exclusively in lambs. In adult sheep coccydiosis often has an asymptomatic course which, however, is not without an impact on animal conditions. Large flock density and related contamination of the environment with oocysts is conducive to a high extensiveness of the invasion. The aim of the study was to analyze the prevalence and intensity of Eimeria invasion in lambs kept in confined management systems in order to establish the key periods of the course of invasions and schedules for prevention programs. The parasitological examination was conducted on samples of feces collected directly from the rectum of 96 lambs every 14 days at the following time points: the 28th, 42nd, 56th, 70th and 100th days of life. The assessment involved the invasion extensity established using a flotation method and invasion intensity expressed as the number of oocysts per gram of feces (OPG) established by using the McMaster technique. On the basis of morphometric parameters of isolated oocysts, the species of coccidia in the studied animals were determined. During the whole study period, the invasion extensity grew from the minimum of 17.6% (CI ± 95%; 9.6-25.6) on day 28 to the maximum of 95.9% (CI ± 95%; 95.3-100.0) on day 100. The average growth in the invasion extensity in the flock was 19.6% every 14 days. The average invasion intensity in the study period was 3039.2 OPG (min-max 50-58,800; SEM 440.2), with the highest excretion of oocysts observed on day 42 of the lambs’ life. The average OPG value on this day was 6783.8, and dropped at subsequent measurement points. The experiment revealed exclusively multi-species invasions. In total, seven species of coccidia were found in the studied animals within the study period. These were: E. bakuensis, E. faurei, E. intricata, E. ovinoidalis, E. pallida, E. parva and E. crandallis.
Gastro-intestinal parasites are extremely important pathogens of humans, domestic livestock, and wild animals. Parasitological prevention in wild ruminants was conducted in forests of eastern Poland in early spring from 2009 to 2013. Fenbendazol in a single-dose (5 mg/kg BW) mixed with feed was distributed through forest feeders. Fecal material was collected in the vicinity of the feeders on the day before the treatment (D0) and 14 days after the treatment (D14). To determine the occurrence of gastrointestinal parasites, coproscopic analysis was conducted by the flotation method and McMaster’s method. Parasite species were identified morphologically on the basis of eggs. The fecal samples contained eggs of the nematodes Trichostrongylidae, Chabertidae, Bunostomum, Nematodirus spp.; Trichuris spp.; Strongyloides spp., and an oocyst from the genus Eimeria spp. Nematodes from the Trichostrongylidae family showed the highest prevalence and intensity (prevalence in 2010 = 74.2% [63.7-82.7], EPG in 2009 = 2750) throughout the study. The prevalence of the other taxa varied over the study period: Nematodirus spp. 34.1-77.4%; Trichuris spp. 1.6-17.7%; Strongyloides spp. 0-22.6%, and Eimeria spp. 23.6-51.6%. No statistically significant differences were shown in the occurrence of gastrointestinal parasites before (D0) and after treatment (D14). However, a marked reduction in the prevalence of all gastrointestinal parasites was demonstrated over the five years of the study (treatment efficacy of 66-78% in parasite reduction). There was a significant difference in the EPG of Trichostrongylidae, Chabertidae, Bunostomum (EPG reduction of 71-83%) and Nematodirus spp. (EPG reduction of 70-75%) before and after treatment (U₍₈₎ = 1; P < 0.05; U₍₈₎ = 0; P < 0.05, respectively for family).Changes in the EPG of Trichuris and Strongyloides genus were not significant. In conclusion, it is worth considering parasitic prevention in wild ruminants, which may positively influence animal health, immunity status, and the quality of kill. Moreover, natural deworming in combination with chemical prevention may significantly reduce the contamination of the environmental with parasite eggs.
The aim of the study was to investigate the state of parasitic invasions in flocks of carrier and fancy pigeons in south-western Poland. Coproscopic methods (flotation with saturated NaCl and saccharose, as well as the McMaster method) were used to examine 42 pigeon flocks (18 flocks of fancy pigeons and 24 flocks of carrier pigeons). A total of 210 faeces samples were tested. Prevalence was determined, and average intensity and abundance of gastrointestinal parasites were estimated on the basis of OPG/EPG. Dispersive forms of parasites were found in 78.6% flocks (88.8% of fancy pigeons and 70.8% of carrier pigeons). In the flocks of fancy pigeons most invasions were of mixed character, with statistically significantly high indices of prevalence and abundance. In carrier pigeon flocks, monoinvasions with significantly higher indices of average intensity prevailed, which indicates a high risk of invasion in this group of birds. Eimeriosis was found to be the dominating invasion, occurring in 59.5% of all samples, carrier pigeons – 45.4%, fancy pigeons – 77.7% (59.5% of the flocks), average OPG – 12280, abundance – 7309. Capillariasis: in total – 49% samples, carrier pigeons – 35.8%, fancy pigeons – 66.6% (52.4% of the flocks), average EPG – 3216, abundance – 1577. Ascariasis: in total – 24.3% samples, carrier pigeons – 12.5%, fancy pigeons – 40% (28.6% of the flocks), average EPG – 1953, abundance – 474. Eggs of nematodes belonging to Ornithostrongylus were found in 4.2% of the samples in total: carrier pigeons – 3.3%, fancy pigeons – 5.5% (4.8% of the flocks), average EPG – 488, abundance – 20. Tapeworm eggs were found in 6.2% samples in total, carrier pigeons – 2.5%, fancy pigeons – 11.1% (9.5% of the flocks), average EPG – 607, abundance – 37. The correlation analysis showed relationships between the prevalence and diarrhoea only in the case of tapeworm invasion, no relationship between diarrhoea and the mere fact of infection were found in other invasions. However, a significant correlation was found between the average OPG/EPG of diagnosed parasites (especially Eimeria, Capillaria and Ascaridia) and the observed diarrhoea symptoms.
The aim of this study was to compare the prevalence of selected pathogens in ticks taken from cats and dogs and from vegetation in urban settlements. A study was conducted to estimate the distribution of Anaplasma phagocytophilum and Borrelia burgdorferi in adult Ixodes ricinus (236), Dermacentor reticulatus (237) and Ixodes hexagonus (3) ticks collected from animals in veterinary clinics (184) and from vegetation in urban settlements (292). The most numerous ticks collected from animals were Ixodes ricinus (73.9%), followed by Dermacentor reticulatus (24.5%) and Ixodes hexagonus (1.6%). A total of 65.8% of the ticks collected from vegetation were Dermacentor reticulatus and 30% were Ixodes ricinus. The arthropods removed from the animals were most commonly located around the neck (48.1%) and in the mouth area (17.1%). All ticks were analyzed by molecular techniques. The percentages of ticks positive for Borrelia burgdorferi and Anaplasma phagocytophilum among those collected from animals differed from the corresponding rates for ticks taken from vegetation in the same area. Anaplasma phagocytophilum was more common in ticks collected from vegetation (N = 137, or 47.20%) than in those from animals (N = 12, or 6.6%). Borrelia burgdorferi, as well, was more common in ticks collected from the vegetation (N = 96, or 32.9%) than in those from animals (N = 19, or 10.5%). The DNA of A. phagocytophilum and B. burgdorferi were detected in 30.4% and 22.8% of D. reticulatus ticks, respectively, and in 32.6% and 25.4% of I. ricinus ticks, respectively. The DNA of A. phagocytophilum was also found in one Ixodes hexagonus tick. Single infections were noted in 69 I. ricinus ticks, 56 D. reticulatus ticks and 1 I. hexagonus tick. Coinfections of A. phagocytophilum with B. burgdorferi were detected in 33 (14.0%) I. ricinus ticks and in 29 (12.24%) D. reticulatus ticks. Infected companion animals can form a reservoir for human tick-transmitted infectious agents. The monitoring of the pathogens transmitted by ticks is an important tool in preventing and combating infections transmitted to humans and animals.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.