| influence of ascaridia galli infections and anthelmintic treatments on the behaviour and social ranks of laying hens (gallus gallus domesticus). | in the present study, the effects of an experimental ascaridia galli infection and anthelmintic treatment on the behaviour and social status of laying hens of two different lines were studied. sixty white (lohmann lsl; lsl) and 60 brown (lohmann brown; lb) hens were reared under helminth-free conditions. the hens of each line were divided into four groups. the birds in two of the groups were artificially infected with 250 embryonated a. galli eggs at an age of 27 weeks. the other two groups were ... | 2007 | 17434676 |
| prevalence and distribution of gastrointestinal helminths and their effects on weight gain in free-range chickens in central zambia. | examination of helminths from gastrointestinal tracts of 125 free-range chickens in zambia revealed a 95.2% prevalence rate. the species and their prevalences were: allodapa suctoria (85.6%), tetrameres americana (80.8%), ascaridia galli (28.8%), gonglonema ingluvicola (50.4%), raillietina spp. (81.6%) and heterakis gallinarum (32.8%). no trematodes or syngamus trachea were found. mixed infections accounted for 88.2% as compared to 7.2% of single infections. effects of helminthoses on weight gai ... | 2007 | 17847826 |
| consequences of concurrent ascaridia galli and escherichia coli infections in chickens. | three experiments were carried out to examine the consequences of concurrent infections with ascaridia galli and escherichia coli in chickens raised for table egg production. characteristic pathological lesions including airsacculitis, peritonitis and/or polyserositis were seen in all groups infected with e. coli. furthermore, a trend for increased mortality rates was observed in groups infected with both organisms which, however, could not be confirmed statistically. the mean worm burden was si ... | 2006 | 16722305 |
| investigations on the influence of helminth parasites on vaccination of chickens against newcastle disease virus under village conditions. | prevalence studies have shown that almost 100% of free-range chickens are infected with a wide range of parasites. the infections are mostly subclinical in nature, resulting in production losses and occasionally mortality. newcastle disease (nd) on the other hand, results in high mortality rates during epidemics. nd is a limiting factor for increasing poultry production in many tropical countries, where frequent reports indicate vaccination failures. the aim of our study was to investigate the i ... | 2003 | 14620586 |
| studies on ascaridia galli in chickens kept at different stocking rates. | the development of ascaridia galli infections was investigated over a period of 378 days in parasite naive chicken flocks ('permanent flocks') kept at different stocking rates and infected by introducing previously infected chickens (seeder birds). the results of this study indicated that differences in stocking rate may lead to different levels of establishment of a. galli infections in chickens. furthermore, significantly higher weight gains were seen in the medium stocking rate (msr) group th ... | 1998 | 18484016 |
| cross-sectional survey on helminth infections of chickens in the samsun region, turkey. | a cross-sectional survey was performed to determine the prevalence and intensity of helminth infections in 185 chickens from nine districts in the samsun region, northern turkey between july 1999 and june 2000. in total, 88% of 83 scavenging chickens and 4% of 52 layers from laying batteries were infected, but none of the 50 broilers harboured helminths in the alimentary tract or trachea. the difference in prevalence was statistically significant among broilers, layers from laying batteries and ... | 2008 | 18605376 |
| resistance induced in chickens by infections with the nematode, ascaridia galli. | | 1948 | 18861398 |
| [determination of parasite fauna of chicken in the van region]. | the aim of this study was to determine the parasite fauna of the chicken in van province in 2002 and 2003. the material of the present study included endoparasites and ectoparasites determined by rutine parasitological examinations. direct, flotation and sedimentation techniques for endoparasites were used. the total of endoparasites and ectoparasites were determined as 85% and 76% respectively. the ratios of endoparasites obtained from the chicken were coccidial oocystis 65%, echinostoma spp. 2 ... | 2009 | 19598095 |
| ascaridia galli infection of pullets and intestinal viscosity: consequences for nutrient retention and gut morphology. | 1. pullets were given a control diet or a diet supplemented with a non-starch-polysaccharide hydrolysing enzyme preparation (nsp-enzyme) from weeks 6 to 14 of age to induce differences in the viscosity of the small intestinal ingesta. half of each feeding group (n = 25) was infected with 250 embryonated ascaridia galli eggs at an age of 6 weeks. 2. at 14 weeks of age, before the pullets were slaughtered, a balance experiment was conducted, to sample ingesta for viscosity measurements. also, tiss ... | 2009 | 19735021 |
| mhc haplotype and susceptibility to experimental infections (salmonella enteritidis, pasteurella multocida or ascaridia galli) in a commercial and an indigenous chicken breed. | in three independent experimental infection studies, the susceptibility and course of infection of three pathogens considered of importance in most poultry production systems, ascaridia galli, salmonella enteritidis and pasteurella multocida were compared in two chicken breeds, the indigenous vietnamese ri and the commercial luong phuong. furthermore, the association of the major histocompatibility complex (mhc) with disease-related parameters was evaluated, using alleles of the lei0258 microsat ... | 2010 | 19945754 |
| [anthelmintic activity of aqueous and ethanolic extracts of morinda citrifolia fruit on ascaridia galli]. | the anthelmintic activity of aqueous and ethanolic extracts of morinda citrifolia fruit (noni) was evaluated in chicken naturally infected by ascaridia galli. the anthelmintic activity in vitro was determined in adult parasites. the aqueous and ethanolic extracts were used in the following concentrations: 1.69; 3.37; 6.74; 13.48 e 26.96 mg.ml(-1) and 4.17; 8.34; 16.68; 33.36 and 66.72 mg.ml(-1), respectively. the anthelmintic activity in vivo was determined by the administration of 10 ml.kg(-1) ... | 2009 | 20040206 |
| effect of extra dietary lysine in ascaridia galli-infected grower layers. | the hypothesis examined in this study was that extra dietary lysine (lys) above the recommended standard exerts beneficial effects on the defence reactions, growth performance and nutrient utilization in ascaridia galli-infected chickens. therefore, 1-day-old female lohmann selected leghorn chickens were at first fed standard lys diet (8.5 g lys/kg dm). at 4 weeks of age, the birds were allocated to groups 1 and 3, both being continued on standard lys diet, whereas birds in groups 2 and 4 were s ... | 2010 | 20299150 |
| the influence of dietary pteroylglutamic acid and of apa liver extract on the survival and growth of the nematode, ascaridia galli, in chickens fed purified and natural diets. | | 1950 | 15413606 |
| molecular and parasitological tools for the study of ascaridia galli population dynamics in chickens. | experiments were first conducted to compare and evaluate different methods of ascaridia galli larval recovery from the chicken intestine. the number of larvae recovered from the intestinal wall of chickens infected with 1000 embryonated a. galli eggs and killed 15 days post infection (p.i.) by three methods (ethylenediamine tetraacetic acid [edta], pepsin digestion and scraping) were compared. the edta and pepsin digestion were found to be the most efficient methods with no significant differenc ... | 2010 | 20390541 |
| genetic resistance to natural helminth infections in two chicken layer lines. | groups of lohmann brown (lb) and lohmann selected leghorn (lsl) hens were reared under helminth-free conditions and kept afterwards together in a free range system. mortality rate, body weight development, laying performance and faecal egg counts (fec) were recorded during a 12 month laying period. at the end of the laying period, 246 lsl and 197 lb hens were necropsied and worms counted following the world association for the advancement of veterinary parasitology (w.a.a.v.p.) guidelines. in ad ... | 2010 | 21185121 |
| prevalence of helminth parasites in free-range chickens from selected rural communities in kwazulu-natal province of south africa. | a total of 79 chickens were randomly collected from 4 rural localities and processed to detect the presence of helminth parasites and their prevalences. sixteen helminth species comprising 12 nematode and 4 cestode species were recorded from the 4 localities. syngamus trachea and cyathostoma spp. were the only helminth species recovered from the respiratory tract and the rest of the helminth species were from the gastrointestinal tract. the most prevalent nematode species across the 4 localities ... | 2010 | 21247015 |
| efficacy of allicin from garlic against ascaridia galli infection in chickens. | the use of garlic as a treatment against helminth infections is increasing in organic layer farms in several european countries. its efficacy against these parasites, however, has not been demonstrated thus far. therefore, a study was conducted to determine the efficacy of a commercially available garlic product consisting of a high concentration of allicin (i.e., the main active component of garlic) against experimentally induced ascaridia galli infection in chickens. in total, 450 lohmann lsl- ... | 2011 | 21248333 |
| immunopathogenesis of ascaridia galli infection in layer chicken. | gastro-intestinal nematode infections in mammals are associated with local t lymphocyte infiltrations, th2 cytokine induction, and alterations in epithelial cell secretion and absorption. this study demonstrates that ascaridia (a.) galli infection in chicken also elicits local gut-associated immune reactions and changes in the intestinal electrogenic nutrient transport. in a. galli-infected birds we observed infiltrations of different t cell populations in the intestinal lamina propria and accum ... | 2011 | 21382408 |
| infection dynamics of ascaridia galli in non-caged laying hens. | the infection dynamics of ascaridia galli in laying hens was investigated in six commercial non-caged flocks. three flocks were managed in accordance with the regulations for organic production and had outdoor access, whereas three flocks were housed indoors in aviaries or traditional floor systems. faecal egg counts and total worm burdens were determined at specified intervals during the first 50 weeks of the production period. in two conventional flocks the efficacy of flubendazole on lumenal ... | 2011 | 21514056 |
| influence of dermanyssus gallinae and ascaridia galli infections on behaviour and health of laying hens (gallus gallus domesticus). | (1) the effect of infections with dermanyssus gallinae (poultry red mite or chicken mite) and ascaridia galli (roundworm) on the behaviour and health of laying hens was investigated. (2) six groups of 15 pullets (isa brown) were kept in indoor pens from 18 weeks of age. two groups were artificially infected with d. gallinae, two groups with a. galli and two groups were kept as uninfected controls. the hens were observed for behavioural reactions and physiological changes (weight gain and various ... | 2005 | 15835249 |
| structure-activity relationship of anthelmintic cyclooctadepsipeptides. | the relationship between cyclooctadepsipeptides and their anthelmintic efficacy was examined by converting the natural products, pf1022a, pf1022e and pf1022h. some analogues substituted at the para position of the phenyllactate moiety showed higher or equivalent activity against the parasitic nematode, ascaridia galli in chicken when compared with the parent compounds. it is suggested that lipophilicity and the polar surface area, in addition to structural requirements of the derivatives, influe ... | 2011 | 21737929 |
| effect of selenium and ascaridia galli infection on antioxidant biomarkers in broiler chickens: a mathematical model for parasite reduction and host growth. | the activity of selenium-dependent glutathione peroxidase (gpx), liver concentration of vitamin e, and plasma and liver selenium levels were used for estimation of the antioxidant status of broiler chickens infected with ascaridia galli. these biomarkers were recorded in an experiment covering 70 days p.i. at the same time the establishment rate of a. galli in chicken intestines, gain in the host body weight and chicken survival were studied. broiler chickens (cobb hybrids) were infected with 14 ... | 2007 | 18062833 |
| prevalence of parasites of the local scavenging chickens in a selected semi-arid zone of eastern kenya. | a study to identify and estimate the prevalence of parasites of local chickens in a semi arid area of kenya was conducted between march 2005 and august 2006. three hundred and sixty (360) local chickens purchased from yathui division of machakos were examined. of those, 93.3% had helminths. nematodes were recovered in 268 (74.4%) chickens whereas 245 (68.1%) had cestodes. tetrameres americana (37.7%), ascaridia galli (33.3%) and heterakis gallinarum (22.8%) were the most important nematode speci ... | 2008 | 18422252 |
| immunity in chickens to ascaridia galli. | | 1947 | 20340869 |
| association study in naturally infected helminth layers shows evidence for influence of interferon-gamma gene variants on ascaridia galli worm burden. | abstract: single nucleotide polymorphisms (snps) in the genes for interleukin-4, -13 and interferon-gamma, and 21 additional snps which previously had been significantly associated with immune traits in the chicken, were genotyped in white and brown layer hens and analyzed for their association with helminth burden following natural infections. a nucleotide substitution located upstream of the promoter of the interferon-gamma gene was significantly associated with the log transformed number of a ... | 2011 | 21749701 |
| prevalence and burden of gastrointestinal helminthes among local chickens, in northern jordan. | we conducted a cross-sectional study from december 2004 to february 2005 and from june 2005 to august 2005. the study aimed to determine the prevalence of gastrointestinal and tracheal helminthes among local chickens in northern jordan. a total of 208 male and female local scavenging chickens were selected randomly. we examined the trachea and gastrointestinal tract of each bird for the presence of helminthes. we recovered three nematode and eight cestode species. no trematodes were found. one h ... | 2008 | 18329115 |
| Comparative efficacy of flubendazole and a commercially available herbal wormer against natural infections of Ascaridia galli, Heterakis gallinarum and intestinal Capillaria spp. in chickens. | The efficacy of a commercially available flubendazole-based product and a commercially available herbal product were compared against three species of helminth parasites of chickens: Ascaridia galli, Heterakis gallinarum and Capillaria spp. A total of 48 naturally infected chickens were used in the study with 16 birds in each of three treatment groups (untreated control; flubendazole; and a herbal product). One bird from each treatment group was necropsied on Day 0 prior to first treatment to co ... | 2011 | 22024017 |
| prevalence and impact of gastrointestinal helminths on body weight gain in backyard chickens in subtropical and humid zone of jammu, india. | necropsy of gastrointestinal tract of 125 free-range chickens from a subtropical and humid zone of northwestern india revealed four nematode spp. (ascaridia galli, heterakis gallinarum, capillaria spp. and cheilospirura hamulosa) and four cestode spp. (raillietina cesticillus, raillietina echinobothrida, raillietina tetragona and amoebotaenia cuneata) the overall prevalence of the helminth parasites was 72.0%. amongst various helminth species encountered in the region, a. galli emerged out as th ... | 2012 | 23543701 |
| prevalence of parasites and associated risk factors in domestic pigeons (columba livia domestica) and free-range backyard chickens of sistan region, east of iran. | this study was carried out on free-range backyard chickens and domestic pigeons (columba livia domestica) from december 2010 to november 2011 to determine the prevalence, intensity and species of internal and external parasites in sistan region, east of iran. of the total of 59 (27 males and 32 females) free-range backyard chickens and 46 (26 males and 20 females) domestic pigeons inspected, 55 (93.22 %) and 39 (84.78 %) were infected respectively. ten species of free-range backyard chickens par ... | 2012 | 24082532 |
| cytokine gene expression profiles in chicken spleen and intestinal tissues during ascaridia galli infection. | in the poultry production industry, chickens with access to outdoor areas are exposed to a wide range of parasites e.g. the helminth ascaridia galli. by real-time quantitative rt-pcr, the relative gene expression of the t helper 1 (th1) cytokine ifn-γ, the t helper 2 (th2) cytokine il-13, the anti-inflammatory cytokines il-10 and tgf-β4 and the pro-inflammatory cytokine il-17f were determined over a period of 3 weeks in a. galli and non-a. galli-infected chickens. a characteristic th2 response w ... | 2014 | 25468030 |
| occurrence and hat-rapd analysis of gastrointestinal helminths in domestic chickens (gallus gallus domesticus) in phayao province, northern thailand. | the present study determined the prevalence and distribution of gastrointestinal helminths in domestic chickens (gallus gallus domesticus) between november 2012 and august 2013. one hundred and twenty domestic chickens were purchased from villages in four districts of phayao province; mae chai, dok khamtai, chun and chiang kham. morphological differences were used to identify the helminth species, and hat-rapd technique was used to differentiate among closely related species. the results reveale ... | 2017 | 28053568 |
| maternal protection against ascaridia galli? | maternally derived antibodies can provide partial protection against certain bacterial and viral infections. we investigated whether chicks descending from nematode-infected hens are more resistant against ascaridia galli, a prevalent gastrointestinal nematode, than chicks from nematode-free mothers. one-day-old chicks (n=153) from infected (mab+; maternal antibody+) or uninfected control dams (mab-) were experimentally infected with a. galli at two different levels (100 or 1000 eggs/chick). the ... | 2017 | 28043387 |
| variation in lipid and fatty acid uptake among nematode and cestode parasites and their host, domestic fowl: host-parasite interaction. | lipid synthesis is an important process in most organisms as well as in helminths. the present observation shows the variation of lipid and fatty acid uptake among cestode, raillietina (fuhrmannetta) echinobothrida; nematode, ascaridia galli and their host, gallus domesticus, the common country fowl. total lipid (tl), neutral lipid (nl), glycolipid (gl), phospholipid (pl) and their fatty acid of cestode, nematode and liver and intestinal fluid of the host were analyzed by thin layer chromatograp ... | 2016 | 27876973 |
| gastrointestinal helminth parasites of local chickens from selected communities in nsukka region of south eastern nigeria. | the prevalence of gastrointestinal helminths of local chickens in nsukka region of southeastern nigeria was studied using 125 free range local birds purchased from four communities in nsukka zone namely, obollo-afor, orba, nsukka urban and owerre eze-orba. the birds were sacrificed humanely and their oesophagus, crop, proventriculus, gizzard, small intestine and caecum examined for the presence of gastrointestinal helminths. worms when present were isolated and identified using standard parasito ... | 2016 | 27876952 |
| prevalence of gastro-intestinal parasites of backyard chickens (gallus domesticus) in and around shimoga. | the present study was conducted for 1 year from march 2010 to february 2011 to identify gastro-intestinal parasites of backyard chickens and to estimate its prevalence in and around shimoga, a malnad region of karnataka. a total of 250 gastro-intestinal tracts were collected from backyard chickens for the detection of gastrointestinal parasites. among the 250 birds screened, 183 (73.2 %) were found positive for gastrointestinal parasites by gross examination of gastrointestinal tract. out of 183 ... | 2016 | 27605824 |
| cross sectional epidemiological investigation on the prevalence of gastrointestinal helminths in free range chickens in narsingdi district, bangladesh. | rural poultry production in bangladesh is mainly based on the free range or backyard poultry production system. this backyard poultry plays a vital tool for poverty alleviation as well as for empowerment of poor women of this country. however, this production system has disadvantage of susceptibility to many diseases including higher burden of parasitic infection. therefore this cross sectional epidemiological investigation was done to determine the prevalence and distribution of gastrointestina ... | 2016 | 27605790 |
| prevalence of the gastro-intestinal parasites of domestic chicken gallus domesticus linnaeus, 1758 in tunisia according to the agro-ecological zones. | helminthosis is a very important disease affecting the poultry industry, especially the traditionally reared free ranging chickens. in tunisia, the poultry production is considered as the most important source of protein in as much as chickens provide 53 % of animal protein production. the traditionally reared poultry farming system exposes chickens to many types of parasites, however, very little work has been done to establish the extend of helminth infection in tunisia. the aim of this work i ... | 2016 | 27605783 |
| seasonal prevalence of gastrointestinal parasites in desi fowl (gallus gallus domesticus) in and around gannavaram, andhra pradesh. | a study was carried out to know the prevalence of gastrointestinal parasites in desi fowl in and nearby villages of gannavaram, andhra pradesh for a period of 1 year. screening of 492 samples comprising faecal samples and gastrointestinal tracts from freshly slaughtered desi birds at local poultry shops and samples from post mortem examinations at ntr college of veterinary science, gannavaram revealed 63.21 % of gastrointestinal parasites. faecal samples were examined by floatation technique usi ... | 2016 | 27605762 |
| a description of village chicken production systems and prevalence of gastrointestinal parasites: case studies in limpopo and kwazulu-natal provinces of south africa. | the majority of rural households in developing countries own village chickens that are reared under traditional scavenging systems with few inputs and exposure to various parasitic infestations. understanding of the village chicken farming system and its influence on helminth infestation is a prerequisite for optimal prevention and control strategies. this study investigated the village chicken production system and associated gastrointestinal parasites in 87 households from limpopo (n = 39) and ... | 2016 | 27247063 |
| population genetic structure of ascaridia galli of extensively raised chickens of south africa. | ascaridia galli is one of the most common nematode affecting chickens. this study characterized a. galli parasites collected from south african village chickens of limpopo (n=18) and kwazulu-natal (n=22) provinces using the 510bp sequences of cytochrome c oxidase subunit 1 gene of the mitochondrial dna. fourteen and 12 polymorphic sites were observed for limpopo and kwazulu-natal sequences, respectively. six haplotypes were observed in total. haplotype diversity was high and ranged from 0.749 fo ... | 2016 | 26801600 |
| embryonation ability of ascaridia galli eggs isolated from worm uteri or host faeces. | experimental infection models for ascaridia galli rely on the use of eggs isolated either directly from worm uteri or from host faeces. we investigated whether a. galli eggs isolated from the two sources differ in their embryonation ability. a. galli eggs originating from 12 worm infrapopulations were isolated both from faeces of the living host (faecal eggs) and directly from worm uteri after host necropsy (uterine eggs). the isolated eggs from each infrapopulation and source were incubated in ... | 2016 | 26790734 |
| prevalence and magnitude of helminth infections in organic laying hens (gallus gallus domesticus) across europe. | helminths are associated with health- and welfare problems in organic laying hens. the present observational cross-sectional study therefore aimed to estimate the prevalence and worm burdens of intestinal helminths in organic flocks of laying hens in 8 european countries, and to identify management factors that might be associated with helminth infections, with emphasis on ascaridia galli. data on flock-level management factors (e.g. nutritional factors, litter quality, housing system, opening- ... | 2015 | 26518645 |
| natural infection of free-range chickens with the ascarid nematode toxocara sp. | human toxocariasis may be acquired by eating raw chicken liver. however, there are no reports on the prevalence of natural infection of chickens with toxocara. the aim of this study was to evaluate the presence of anti-toxocara antibodies as indicators of natural infection with toxocara, in free-range chickens from espírito santo state, brazil. an elisa test with secretory and excretory toxocara canis antigens was used. negative controls were 20 industrial chickens reared in a high hygiene stand ... | 2015 | 26319520 |
| effects of alcoholic extract of curcuma longa on ascaridia infestation affecting chicken. | ascaridia galli, the common intestinal nematode, remains a major cause of economic loss in the poultry industry in developing countries. treatments using chemicals are not only expensive but also affect host health. plant extracts as better alternative is gaining significance. here, we have studied the effects of alcoholic extract of turmeric, curcuma longa l. (zingiberaceae) roots, against a. galli infection in chicken. different concentrations of c. longa root extract were tested in vitro on 5 ... | 2015 | 26245030 |
| the jejunal cellular responses in chickens infected with a single dose of ascaridia galli eggs. | this histopathological study was carried out in order to investigate the cellular response in the jejunum to ascaridia galli during the first 7 weeks of infection. fourty-two isa brown chickens (7 weeks old) were infected orally with 500 embryonated a. galli eggs each while 28 chickens were left as uninfected controls. six infected and four control chickens were necropsied at each time point 3, 7, 10, 14, 21, 28 and 42 days post-infection (dpi). samples for histopathology were taken from three s ... | 2015 | 25877388 |
| The effects of dietary non-starch polysaccharides on Ascaridia galli infection in grower layers. | SUMMARYThis study examined whether Ascaridia galli infection can be controlled by dietary non-starch polysaccharides (NSP) in chickens. One-day-old chicks were fed either a basal diet (CON) or CON plus insoluble NSP (I-NSP), or CON plus soluble NSP (S-NSP) for 11 weeks. Three weeks later, birds from half of each feeding group were inoculated with 250 embryonated eggs of A. galli, and slaughtered 8 weeks post-infection to determine worm counts. Both NSP diets, particularly S-NSP, increased preval ... | 2011 | 21939584 |
| the use of genetically marked infection cohorts to study changes in establishment rates during the time course of a repeated ascaridia galli infection in chickens. | this study investigated the changes in establishment rates during the time course of a 6 week trickle infection of chickens with ascaridia galli at two different dose levels, using a molecular marker. to differentiate early and late infection, two different egg cohorts (haplotype a and haplotype b, genetically identified using pcr-linked restriction fragment length polymorphism on the cox1 gene of the mitochondrial dna) were used. cohort-specific egg batches were produced by harvesting eggs from ... | 2015 | 25812834 |
| prevalence of ascaridia galli in white leghorn layers and fayoumi-rhode island red crossbred flock at government poultry farm dina, punjab, pakistan. | poultry farming not only provides high nutritious food but also creates employment opportunity for rural masses. documented evidences elaborates that helminth parasitism is most deciduous problem of chickens especially in developing world. ascaridia (a.) galli, a nematode of small intestine, has been considered as the most common and important parasite of chicken. the present study was carried out to investigate prevalence and severity of a. galli in white leghorn layers (housing type: battery c ... | 2015 | 25801250 |
| gastrointestinal parasites of free-range chickens. | the aim of the study was to determine the prevalence and intensity of parasitic gastrointestinal infections in free-range chickens from the west pomerania province. experimental material for the study was taken from 10 farms. breeds raised in farms participating in the study included miniature chickens called polish lilliputians and green- legged partridge. a total of 104 samples of faeces were examined. the willis-schlaff flotation method was used to assess the prevalence of infection, and mcma ... | 2014 | 25706430 |
| Localization of Ascaridia galli larvae in the jejunum of chickens 3 days post infection. | The normal habitat of the parasitic stages of Ascaridia galli is in the small intestine of poultry but the exact localization is poorly understood. Therefore, a histological study was conducted in order to localize the larvae during the early phase of infection. Six layer pullets seven-week old were infected orally with 20,000 embryonated A. galli eggs each, whereas four chickens were left as un-infected controls. At necropsy 3 days after infection the first half of jejunum/ileum was divided int ... | 2011 | 22133491 |
| immune gene expression in the spleen of chickens experimentally infected with ascaridia galli. | ascaridia galli is a gastrointestinal nematode infecting chickens. chickens kept in alternative rearing systems or at free-range experience increased risk for infection with resulting high prevalences. a. galli infection causes reduced weight gain, decreased egg production and in severe cases increased mortality. more importantly, the parasitised chickens are more susceptible to secondary infections and their ability to develop vaccine-induced protective immunity against other diseases may be co ... | 2015 | 25649508 |
| genetic variation for worm burdens in laying hens naturally infected with gastro-intestinal nematodes. | 1. genetic parameters were determined for the worm burden of the most common gastro-intestinal nematodes in two chicken genotypes after being exposed to free-range farming conditions for a laying period. 2. seventeen-week-old hens of 2 brown genotypes, lohmann brown (lb) plus (n = 230) and lb classic (n = 230), were reared for a laying period and subjected to post-mortem parasitological examinations at 79 weeks (lb plus) or 88 weeks (lb classic) of age. 3. there was no significant difference in ... | 2015 | 25486507 |
| establishment of gastro-intestinal helminth infections in free-range chickens: a longitudinal on farm study. | the objective of this study was to monitor establishment and development of gastro-intestinal helminth infections in chickens over two production years (py) on a free-range farm in lower saxony, germany. the data were collected between july 2010 and june 2011 (py1) and july 2011 and january 2013 (py2), respectively. during py1, lohmann brown classic (lb classic, n = 450) was tested, while in py2 two different genotypes (230 lb classic, 230 lb plus) were used. the hens were kept in two mobile sta ... | 2014 | 25080825 |
| acquisition of resistance after continuous infection with ascaridia galli in chickens. | summary acquired resistance against ascaridia galli infection was studied in seventy-two 18-week-old white leghorn chickens allocated to six groups (g1-g6). in order to understand the population dynamics following trickle-infection (100 eggs per chicken twice weekly), chickens of subgroups of g1 were necropsied 3 days after 1, 6 or 12 inoculations (g1a, g1b and g1c respectively), while g2-g4 were inoculated for 6 weeks. g2 was necropsied 4 weeks after the last inoculation. the number of establis ... | 2014 | 25003836 |
| response to ascaridia galli infection in growing chickens in relation to their body weight. | it was hypothesized that chickens with extremely varying body weights (bw) from an otherwise homogeneous host sample cope differently with ascaridia galli (schrank 1788) infection. small and large birds, falling into either the lower or the upper 5% quantiles of bw distribution of a parent stock flock, were selected at an age of 4 weeks, housed separately and fed restrictively with the same amount of feed. at week 5, all the small and large birds (635 and 1,297 g/bird, respectively; p < 0.001) w ... | 2014 | 24585156 |
| ascaridia galli infection influences the development of both humoral and cell-mediated immunity after newcastle disease vaccination in chickens. | potent vaccine efficiency is crucial for disease control in both human and livestock vaccination programmes. free range chickens and chickens with access to outdoor areas have a high risk of infection with parasites including ascaridia galli, a gastrointestinal nematode with a potential influence on the immunological response to vaccination against other infectious diseases. the purpose of this study was to investigate whether a. galli infection influences vaccine-induced immunity to newcastle d ... | 2014 | 24269617 |
| in vitro and in vivo screening of anthelmintic activity of ginger and curcumin on ascaridia galli. | intestinal helmintic infection, continue to be a cause of major concern in several parts of the world, particularly in the developing nations. the use of plant extracts to control poultry helminths is increasing in different rearing systems. the anthelmintic activity of ginger and curcumin was studied on the nematode ascaridia galli. in vitro and in vivo studies were allocated. live parasites for in vitro studies were collected from the intestine of naturally infected chickens. some living worms ... | 2013 | 24046262 |
| the effect of single infections of variable size on the resistance of chickens to the nematode, ascaridia galli. | | 1949 | 18108526 |
| comparison of the antitryptic action of the large roundworm of the chicken (ascaridia galli) and the common earthworm (lumbricus terrestris). | | 1949 | 18126541 |
| the antibody basis of immunity in chickens to the nematode, ascaridia galli. | | 1949 | 18108525 |
| molecular characterization of ascaridia galli infecting native chickens in egypt. | family: ascaridae as a whole is distributed among africa and adjacent regions and in many areas of the world. the nematode ascaridia galli is one of the most pathogenic and economically important parasites of poultry. the adult affect the small intestine of the hosts feeding on digested food materials. its control costs million dollars annually. the genomic dna was extracted from nematode parasites, a. galli, from specific host, native chickens. the polymerase chain reaction (pcr) was applied to ... | 2013 | 23793336 |
| no protection in chickens immunized by the oral or intra-muscular immunization route with ascaridia galli soluble antigen. | in chickens, the nematode ascaridia galli is found with prevalences of up to 100% causing economic losses to farmers. no avian nematode vaccines have yet been developed and detailed knowledge about the chicken immune response towards a. galli is therefore of great importance. the objective of this study was to evaluate the induction of protective immune responses to a. galli soluble antigen by different immunization routes. chickens were immunized with a crude extract of a. galli via an oral or ... | 2013 | 23718808 |
| population dynamics of ascaridia galli following single infection in young chickens. | the population dynamics of ascaridia galli was studied in 70 isa brown layer pullets, 42 of them were each experimentally infected with 500 embryonated a. galli eggs and 28 chickens were kept as uninfected controls. six chickens from the infected group and 4 from the control group were necropsied at 3, 7, 10, 14, 21, 28 and 42 days post-infection (d.p.i.). the mean worm recovery varied from 11-20% of the infection dose with the highest recovery at 3 d.p.i. and the lowest at 21 and 42 d.p.i. (p < ... | 2013 | 23673198 |
| comparison of parasite-specific immunoglobulin levels in two chicken lines during sustained infection with ascaridia galli. | increasingly large numbers of poultry are held in production systems with access to outdoor areas. in these systems intestinal helminths are found with flock prevalences of up to 100%. helminth infections influence chicken health negatively, which is why the following investigation has been performed. in the present experiment, 20 chickens of two inbred chicken lines containing the major histocompatibility complex (mhc) haplotypes, b14 and r5, were inoculated with 500 embryonated ascaridia galli ... | 2013 | 22981407 |
| ascaridia galli in chickens: intestinal localization and comparison of methods to isolate the larvae within the first week of infection. | this study was conducted to observe the localization and to compare methods for isolation of minute ascaridia galli larvae in chicken intestine. firstly, six 7-week-old layer pullets were orally infected with 2,000 embryonated a. galli eggs and necropsied either at 3, 5 or 7 days post infection (dpi). more than 95 % of the recovered larvae were obtained from the anterior half of the jejunoileum, suggesting this part as the initial predilection site for a. galli larvae. secondly, the intestinal w ... | 2012 | 22915270 |
| anthelmintic effects of citrus peels ethanolic extracts against ascaridia galli. | the use of phytogenic bioactive compounds to control poultry helminthes is increasing in different production systems. in vitro and in vivo anthelmintic activity of citrus peels against ascaridia galli was investigated. ethanolic extracts of three citrus peels species were suspended in 0.5% dimethyl sulfoxide (dmso) to form an experimental composition (ec). ec was mainly composed of limonene (96%), followed by β-pinene (1.5%), α-pinene (0.5%), and sabinene (0.3%). for in vitro investigation, adu ... | 2012 | 22463876 |
| gastrointestinal helminths are highly prevalent in scavenging chickens of selected districts of eastern shewa zone, ethiopia. | a cross-sectional survey on gastrointestinal helminths was conducted on 124 chickens raised under traditional management system in two selected districts namely ada'a and adamitulu of eastern shewa zone, ethiopia. of these chickens, 111 (89.5%) were found to harbor one of the five different helminth parasites and 13 (10.48%) were free of helminths parasites. the study also found that 103 (83.0%) and 72 (58.0%) of the examined chickens were invariably infected by diverse species of cestodes and n ... | 2012 | 24175425 |
| immune responses following experimental infection with ascaridia galli and necrotic enteritis in broiler chickens. | broilers commonly suffer from necrotic enteritis (ne). other gastrointestinal infectious diseases affect poultry, including nematode infections which are considered a re-emerging disease in barn and free-range systems. the aim of this study was to characterize the immune response of broilers after artificial infection with ne and contrast these with responses to the nematode ascaridia galli and determine whether immune parameters measured during the course of infection can be used to distinguish ... | 2017 | 28503936 |
| survival and development of chicken ascarid eggs in temperate pastures. | eggs of chicken ascarids (ascaridia galli and heterakis spp.) are believed to be hardy and survive for long periods. however, this has not been evaluated quantitatively and our study therefore aimed to determine development and recovery of chicken ascarid eggs after burying in pasture soil. unembryonated eggs were mixed with soil, placed in sealed nylon bags and buried at 7 cm depth in pasture plots april (spring, n = 72) and december 2014 (winter, n = 72). eight randomly selected bags per seaso ... | 2017 | 28482946 |
| a comprehensive evaluation of an elisa for the diagnosis of the two most common ascarids in chickens using plasma or egg yolks. | classical faecal egg counts (fec) provide less reliable diagnostic information for nematode infections in chickens. we developed an elisa based on ascaridia galli antigens and tested two hypotheses, as follows: (i) igy antibodies developed against a. galli will also be useful to identify heterakis gallinarum infections, and (ii) circulating antibodies stored in egg yolks are as good as plasma samples, so a non-invasive diagnosis is possible. the aim of this study, therefore, was to compare the d ... | 2017 | 28420423 |
| diurnal fluctuations in nematode egg excretion in naturally and in experimentally infected chickens. | we investigated whether nematode egg excretion through feces of naturally or experimentally infected chickens follow certain patterns within a day, which may allow determining the most appropriate sampling time for the highest parasite egg concentration. feces samples (n=864) from chickens (n=36) with naturally occurring mixed nematode infections (trials n1, n2) or with an experimental ascaridia galli infection (e) were collected quantitatively every 4h for four consecutive days. number of eggs ... | 2015 | 25700938 |
| gastrointestinal parasitic infections in chickens of upper gangetic plains of india with special reference to poultry coccidiosis. | studies on the prevalence of gastrointestinal parasites of chicken reared under backyard and intensive systems were carried out in two north indian states viz., uttar pradesh and uttarakhand. out of 58 poultry farms screened for gastrointestinal parasites, 81.03 % were positive for eimeria spp., 15.52 % for ascaridia galli, 3.45 % for hetarakis gallinarum, 1.72 % for syngamus trachea, 5.17 % for capillaria spp, 1.72 % for raillietina spp., 1.72 % for trichostrongylus tenuis, 1.72 % for choanotae ... | 2015 | 25698854 |