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Effects of Probiotic Administration During
EFFECTS OF PROBIOTIC ADMINISTRATION DURING COCCIDIOSIS VACCINATION ON PERFORMANCE AND LESION DEVELOPMENT IN BROILERS A Thesis by Anthony Emil Klein, Jr. Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2009 Major Subject: Poultry Science EFFECTS OF PROBIOTIC ADMINISTRATION DURING COCCIDIOSIS VACCINATION ON PERFORMANCE AND LESION DEVELOPMENT IN BROILERS A Thesis by Anthony Emil Klein, Jr. Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, David J. Caldwell Committee Members, James A. Byrd Morgan B. Farnell Jason T. Lee Head of Department, John B. Carey August 2009 Major Subject: Poultry Science iii ABSTRACT Effects of Probiotic Administration during Coccidiosis Vaccination on Performance and Lesion Development in Broilers. (August 2009) Anthony Emil Klein, Jr., B.S., Texas A&M University Chair of Advisory Committee: Dr. David J. Caldwell The principal objective of this investigation was to evaluate coccidiosis vaccination, with or without probiotic administration, for effects on broiler performance and clinical indices of infection due to field strain Eimeria challenge during pen trials of commercially applicable durations. During trials 1 and 2, body weights of vaccinated broilers were reduced (P<0.05) compared to other experimental groups during rearing through the grower phase. Final body weights, however, were not different among experimental groups at the termination of each trial. Similarly, feed conversion in trials 1 and 2 was increased (P<0.05) in vaccinated broilers during rearing through the grower phase when compared to non-vaccinated broilers. -
Conservation and Diversification of Small RNA Pathways Within Flatworms Santiago Fontenla1, Gabriel Rinaldi2, Pablo Smircich1,3 and Jose F
Fontenla et al. BMC Evolutionary Biology (2017) 17:215 DOI 10.1186/s12862-017-1061-5 RESEARCH ARTICLE Open Access Conservation and diversification of small RNA pathways within flatworms Santiago Fontenla1, Gabriel Rinaldi2, Pablo Smircich1,3 and Jose F. Tort1* Abstract Background: Small non-coding RNAs, including miRNAs, and gene silencing mediated by RNA interference have been described in free-living and parasitic lineages of flatworms, but only few key factors of the small RNA pathways have been exhaustively investigated in a limited number of species. The availability of flatworm draft genomes and predicted proteomes allowed us to perform an extended survey of the genes involved in small non-coding RNA pathways in this phylum. Results: Overall, findings show that the small non-coding RNA pathways are conserved in all the analyzed flatworm linages; however notable peculiarities were identified. While Piwi genes are amplified in free-living worms they are completely absent in all parasitic species. Remarkably all flatworms share a specific Argonaute family (FL-Ago) that has been independently amplified in different lineages. Other key factors such as Dicer are also duplicated, with Dicer-2 showing structural differences between trematodes, cestodes and free-living flatworms. Similarly, a very divergent GW182 Argonaute interacting protein was identified in all flatworm linages. Contrasting to this, genes involved in the amplification of the RNAi interfering signal were detected only in the ancestral free living species Macrostomum lignano. We here described all the putative small RNA pathways present in both free living and parasitic flatworm lineages. Conclusion: These findings highlight innovations specifically evolved in platyhelminths presumably associated with novel mechanisms of gene expression regulation mediated by small RNA pathways that differ to what has been classically described in model organisms. -
(Apicomplexa: Adeleorina) Haemoparasites
Biological Forum – An International Journal 8(1): 331-337(2016) ISSN No. (Print): 0975-1130 ISSN No. (Online): 2249-3239 Molecular identification of Hepatozoon Miller, 1908 (Apicomplexa: Adeleorina) haemoparasites in Podarcis muralis lizards from northern Italy and detection of conserved motifs in the 18S rRNA gene Simona Panelli, Marianna Bassi and Enrica Capelli Department of Earth and Environmental Sciences, Section of Animal Biology, Laboratory of Immunology and Genetic Analyses and Centre for Health Technologies (CHT)/University of Pavia, Via Taramelli 24, 27100 Pavia, Italy (Corresponding author: Enrica Capelli, [email protected]) (Received 22 March, 2016, Accepted 06 April, 2016) (Published by Research Trend, Website: www.researchtrend.net) ABSTRACT: This study applies a non-invasive molecular test on common wall lizards (Podarcis muralis) collected in Northern Italy in order to i) identify protozoan blood parasites using primers targeting a portion of haemogregarine 18S rRNA; ii) perform a detailed bioinformatic and phylogenetic analysis of amplicons in a context where sequence analyses data are very scarce. Indeed the corresponding phylum (Apicomplexa) remains the poorest-studied animal group in spite of its significance for reptile ecology and evolution. A single genus, i.e., Hepatozoon Miller, 1908 (Apicomplexa: Adeleorina) and an identical infecting genotype were identified in all positive hosts. Bioinformatic analyses identified highly conserved sequence patterns, some of which known to be involved in the host-parasite cross-talk. Phylogenetic analyses evidenced a limited host specificity, in accord with existing data. This paper provides the first Hepatozoon sequence from P. muralis and one of the few insights into the molecular parasitology, sequence analysis and phylogenesis of haemogregarine parasites. -
Coinfection of Schistosoma (Trematoda) with Bacteria, Protozoa and Helminths
CHAPTER 1 Coinfection of Schistosoma (Trematoda) with Bacteria, Protozoa and Helminths ,† ‡ Amy Abruzzi* and Bernard Fried Contents 1.1. Introduction 3 1.2. Coinfection of Species of Schistosoma and Plasmodium 4 1.2.1. Animal studies 21 1.2.2. Human studies 23 1.3. Coinfection of Schistosoma Species with Protozoans other than in the Genus Plasmodium 24 1.3.1. Leishmania 32 1.3.2. Toxoplasma 32 1.3.3. Entamoeba 34 1.3.4. Trypanosoma 35 1.4. Coinfection of Schistosoma Species with Salmonella 36 1.4.1. Animal studies 36 1.4.2. Human studies 42 1.5. Coinfection of Schistosoma Species with Bacteria other than Salmonella 43 1.5.1. Mycobacterium 43 1.5.2. Helicobacter pylori 49 1.5.3. Staphylococcus aureus 50 1.6. Coinfection of Schistosoma and Fasciola Species 50 1.6.1. Animal studies 57 1.6.2. Human studies 58 * Skillman Library, Lafayette College, Easton, Pennsylvania, USA { Epidemiology, University of Medicine and Dentistry of New Jersey (UMDNJ), Piscataway, New Jersey, USA { Department of Biology, Lafayette College, Easton, Pennsylvania, USA Advances in Parasitology, Volume 77 # 2011 Elsevier Ltd. ISSN 0065-308X, DOI: 10.1016/B978-0-12-391429-3.00005-8 All rights reserved. 1 2 Amy Abruzzi and Bernard Fried 1.7. Coinfection of Schistosoma Species and Helminths other than the Genus Fasciola 59 1.7.1. Echinostoma 59 1.7.2. Hookworm 70 1.7.3. Trichuris 70 1.7.4. Ascaris 71 1.7.5. Strongyloides and Trichostrongyloides 72 1.7.6. Filarids 73 1.8. Concluding Remarks 74 References 75 Abstract This review examines coinfection of selected species of Schisto- soma with bacteria, protozoa and helminths and focuses on the effects of the coinfection on the hosts. -
A New Species of Hepatozoon (Apicomplexa: Adeleorina) from Python Regius (Serpentes: Pythonidae) and Its Experimental Transmission by a Mosquito Vector
J. Parasitol., 93(?), 2007, pp. 1189–1198 ᭧ American Society of Parasitologists 2007 A NEW SPECIES OF HEPATOZOON (APICOMPLEXA: ADELEORINA) FROM PYTHON REGIUS (SERPENTES: PYTHONIDAE) AND ITS EXPERIMENTAL TRANSMISSION BY A MOSQUITO VECTOR Michal Sloboda, Martin Kamler, Jana Bulantova´*, Jan Voty´pka*†, and David Modry´† Department of Parasitology, University of Veterinary and Pharmaceutical Sciences, Palacke´ho 1-3, 612 42 Brno, Czech Republic. e-mail: [email protected] ABSTRACT: Hepatozoon ayorgbor n. sp. is described from specimens of Python regius imported from Ghana. Gametocytes were found in the peripheral blood of 43 of 55 snakes examined. Localization of gametocytes was mainly inside the erythrocytes; free gametocytes were found in 15 (34.9%) positive specimens. Infections of laboratory-reared Culex quinquefasciatus feeding on infected snakes, as well as experimental infection of juvenile Python regius by ingestion of infected mosquitoes, were performed to complete the life cycle. Similarly, transmission to different snake species (Boa constrictor and Lamprophis fuliginosus) and lizards (Lepidodactylus lugubris) was performed to assess the host specificity. Isolates were compared with Hepatozoon species from sub-Saharan reptiles and described as a new species based on the morphology, phylogenetic analysis, and a complete life cycle. Hemogregarines are the most common intracellular hemo- 3 genera (Telford et al., 2004). Low host specificity of Hepa- parasites found in reptiles. The Hemogregarinidae, Karyolysi- tozoon spp. is supported by experimental transmissions between dae, and Hepatozoidae are distinguished based on the different snakes from different families. Ball (1967) observed experi- developmental patterns in definitive (invertebrate) hosts oper- mental parasitemia with Hepatozoon rarefaciens in the Boa ating as vectors; all 3 families have heteroxenous life cycles constrictor (Boidae); the vector was Culex tarsalis, which had (Telford, 1984). -
(Apicomplexa: Adeleorina) from the Blood of Echis Pyramidum: Morphology and SSU Rdna Sequence Hepatozoon Pyramidumi Sp
Original Article ISSN 1984-2961 (Electronic) www.cbpv.org.br/rbpv Hepatozoon pyramidumi sp. n. (Apicomplexa: Adeleorina) from the blood of Echis pyramidum: morphology and SSU rDNA sequence Hepatozoon pyramidumi sp. n. (Apicomplexa: Adeleorina) do sangue de Echis pyramidum: morfologia e sequência de SSU rDNA Lamjed Mansour1,2; Heba Mohamed Abdel-Haleem3; Esam Sharf Al-Malki4; Saleh Al-Quraishy1; Abdel-Azeem Shaban Abdel-Baki3* 1 Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia 2 Unité de Recherche de Biologie Intégrative et Écologie Évolutive et Fonctionnelle des Milieux Aquatiques, Département de Biologie, Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunisia 3 Zoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt 4 Department of Biology, College of Sciences, Majmaah University, Majmaah 11952, Riyadh Region, Saudi Arabia How to cite: Mansour L, Abdel-Haleem HM, Al-Malki ES, Al-Quraishy S, Abdel-Baki AZS. Hepatozoon pyramidumi sp. n. (Apicomplexa: Adeleorina) from the blood of Echis pyramidum: morphology and SSU rDNA sequence. Braz J Vet Parasitol 2020; 29(2): e002420. https://doi.org/10.1590/S1984-29612020019 Abstract Hepatozoon pyramidumi sp. n. is described from the blood of the Egyptian saw-scaled viper, Echis pyramidum, captured from Saudi Arabia. Five out of ten viper specimens examined (50%) were found infected with Hepatozoon pyramidumi sp. n. with parasitaemia level ranged from 20-30%. The infection was restricted only to the erythrocytes. Two morphologically different forms of intraerythrocytic stages were observed; small and mature gamonts. The small ganomt with average size of 10.7 × 3.5 μm. Mature gamont was sausage-shaped with recurved poles measuring 16.3 × 4.2 μm in average size. -
The Effect of Triaenophorus Nodulosus (Cestoda: Bothriocephalidea) Infection on Some Biochemical Parameters of the Liver of Perca fluviatilis
J Parasit Dis (Oct-Dec 2019) 43(4):566–574 https://doi.org/10.1007/s12639-019-01128-0 ORIGINAL ARTICLE The effect of Triaenophorus nodulosus (Cestoda: Bothriocephalidea) infection on some biochemical parameters of the liver of Perca fluviatilis 1 1 1 Ekaterina V. Borvinskaya • Irina V. Sukhovskaya • Lev P. Smirnov • 1 1 1 Albina A. Kochneva • Aleksey N. Parshukov • Marina Yu. Krupnova • 1 1 1 Elizaveta A. Buoy • Rimma U. Vysotskaya • Maria V. Churova Received: 2 February 2019 / Accepted: 29 May 2019 / Published online: 5 June 2019 Ó Indian Society for Parasitology 2019 Abstract Natural infection of 2 to 6-year-old perch with Keywords Helminth Á Triaenophorus Á Cestoda Á the cestode parasites Triaenophorus nodulosus was shown Perca fluviatilis Á Invasion Á Biochemical status to have minor effects on the studied components of the antioxidant defense system, nucleic acids degradation, and carbohydrate metabolism enzymes in the liver of the fish. Introduction The level of infection of 1–4 parasite larvae per fish observed in wild population of perch was shown to be The study of the effect of parasites on the biochemical moderate in terms of its effect on the health of the host fish. status of their host is important for clarifying the mutual The activity of hepatic enzymes b-galactosidase, b-glu- adaptations in the parasite–host system. A parasite directly cosidase, cathepsin D, and glutathione S-transferase affects its host by competing with it for resources; never- showed different responses in infected males and females, theless, there is usually a balance in the system, where which indicates different potential resistance of fish to the parasites cannot cause major damage to the host popula- stress exposure between genders. -
Hymenolepis Nana Is a Ubiquitous Parasite, Found Throughout Many Developing and Developed Countries
Characterisation of Community-Derived Hymenolepis Infections in Australia Marion G. Macnish BSc. (Medical Science) Hons Division of Veterinary and Biomedical Sciences Murdoch University Western Australia This thesis is presented for the degree of Doctor of Philosophy of Murdoch University 2001 I declare that this thesis is my own account of my research and contains as its main work which has not been submitted for a degree at any other educational institution. ………………………………………………. (Marion G. Macnish) Characterisation of Community-Derived Hymenolepis Infections in Australia ii Abstract Hymenolepis nana is a ubiquitous parasite, found throughout many developing and developed countries. Globally, the prevalence of H. nana is alarmingly high, with estimates of up to 75 million people infected. In Australia, the rates of infection have increased substantially in the last decade, from less than 20% in the early 1990’s to 55 - 60% in these same communities today. Our knowledge of the epidemiology of infection of H. nana is hampered by the confusion surrounding the host specificity and taxonomy of this parasite. The suggestion of the existence of two separate species, Hymenolepis nana von Siebold 1852 and Hymenolepis fraterna Stiles 1906, was first proposed at the beginning of the 20th century. Despite ongoing discussions in the subsequent years it remained unclear, some 90 years later, whether there were two distinct species, that are highly host specific, or whether they were simply the same species present in both rodent and human hosts. The ongoing controversy surrounding the taxonomy of H. nana has not yet been resolved and remains a point of difference between the taxonomic and medical literature. -
Waterborne Zoonotic Helminthiases Suwannee Nithiuthaia,*, Malinee T
Veterinary Parasitology 126 (2004) 167–193 www.elsevier.com/locate/vetpar Review Waterborne zoonotic helminthiases Suwannee Nithiuthaia,*, Malinee T. Anantaphrutib, Jitra Waikagulb, Alvin Gajadharc aDepartment of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Henri Dunant Road, Patumwan, Bangkok 10330, Thailand bDepartment of Helminthology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Bangkok 10400, Thailand cCentre for Animal Parasitology, Canadian Food Inspection Agency, Saskatoon Laboratory, Saskatoon, Sask., Canada S7N 2R3 Abstract This review deals with waterborne zoonotic helminths, many of which are opportunistic parasites spreading directly from animals to man or man to animals through water that is either ingested or that contains forms capable of skin penetration. Disease severity ranges from being rapidly fatal to low- grade chronic infections that may be asymptomatic for many years. The most significant zoonotic waterborne helminthic diseases are either snail-mediated, copepod-mediated or transmitted by faecal-contaminated water. Snail-mediated helminthiases described here are caused by digenetic trematodes that undergo complex life cycles involving various species of aquatic snails. These diseases include schistosomiasis, cercarial dermatitis, fascioliasis and fasciolopsiasis. The primary copepod-mediated helminthiases are sparganosis, gnathostomiasis and dracunculiasis, and the major faecal-contaminated water helminthiases are cysticercosis, hydatid disease and larva migrans. Generally, only parasites whose infective stages can be transmitted directly by water are discussed in this article. Although many do not require a water environment in which to complete their life cycle, their infective stages can certainly be distributed and acquired directly through water. Transmission via the external environment is necessary for many helminth parasites, with water and faecal contamination being important considerations. -
Redalyc.Protozoan Infections in Farmed Fish from Brazil: Diagnosis
Revista Brasileira de Parasitologia Veterinária ISSN: 0103-846X [email protected] Colégio Brasileiro de Parasitologia Veterinária Brasil Laterça Martins, Mauricio; Cardoso, Lucas; Marchiori, Natalia; Benites de Pádua, Santiago Protozoan infections in farmed fish from Brazil: diagnosis and pathogenesis. Revista Brasileira de Parasitologia Veterinária, vol. 24, núm. 1, enero-marzo, 2015, pp. 1- 20 Colégio Brasileiro de Parasitologia Veterinária Jaboticabal, Brasil Available in: http://www.redalyc.org/articulo.oa?id=397841495001 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Review Article Braz. J. Vet. Parasitol., Jaboticabal, v. 24, n. 1, p. 1-20, jan.-mar. 2015 ISSN 0103-846X (Print) / ISSN 1984-2961 (Electronic) Doi: http://dx.doi.org/10.1590/S1984-29612015013 Protozoan infections in farmed fish from Brazil: diagnosis and pathogenesis Infecções por protozoários em peixes cultivados no Brasil: diagnóstico e patogênese Mauricio Laterça Martins1*; Lucas Cardoso1; Natalia Marchiori2; Santiago Benites de Pádua3 1Laboratório de Sanidade de Organismos Aquáticos – AQUOS, Departamento de Aquicultura, Universidade Federal de Santa Catarina – UFSC, Florianópolis, SC, Brasil 2Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina – Epagri, Campo Experimental de Piscicultura de Camboriú, Camboriú, SC, Brasil 3Aquivet Saúde Aquática, São José do Rio Preto, SP, Brasil Received January 19, 2015 Accepted February 2, 2015 Abstract The Phylum Protozoa brings together several organisms evolutionarily different that may act as ecto or endoparasites of fishes over the world being responsible for diseases, which, in turn, may lead to economical and social impacts in different countries. -
In Vitro and in Vivo Trematode Models for Chemotherapeutic Studies
589 In vitro and in vivo trematode models for chemotherapeutic studies J. KEISER* Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, CH-4002 Basel, Switzerland (Received 27 June 2009; revised 7 August 2009 and 26 October 2009; accepted 27 October 2009; first published online 7 December 2009) SUMMARY Schistosomiasis and food-borne trematodiases are chronic parasitic diseases affecting millions of people mostly in the developing world. Additional drugs should be developed as only few drugs are available for treatment and drug resistance might emerge. In vitro and in vivo whole parasite screens represent essential components of the trematodicidal drug discovery cascade. This review describes the current state-of-the-art of in vitro and in vivo screening systems of the blood fluke Schistosoma mansoni, the liver fluke Fasciola hepatica and the intestinal fluke Echinostoma caproni. Examples of in vitro and in vivo evaluation of compounds for activity are presented. To boost the discovery pipeline for these diseases there is a need to develop validated, robust high-throughput in vitro systems with simple readouts. Key words: Schistosoma mansoni, Fasciola hepatica, Echinostoma caproni, in vitro, in vivo, drug discovery, chemotherapy. INTRODUCTION by chemotherapy. However, only two drugs are currently available: triclabendazole against fascio- Thus far approximately 6000 species in the sub-class liasis and praziquantel against the other food-borne Digenea, phylum Platyhelminthes have been de- trematode infections and schistosomiasis (Keiser and scribed in the literature. Among them, only a dozen Utzinger, 2004; Keiser et al. 2005). Hence, there is a or so species parasitize humans. These include need for discovery and development of new drugs, the blood flukes (five species of Schistosoma), liver particularly in view of growing concern about re- flukes (Clonorchis sinensis, Fasciola gigantica, Fasciola sistance developing to existing drugs. -
The Substructure of Three Repetitive DNA Regions of Schistosoma
Abbasi et al. Parasites & Vectors (2017) 10:364 DOI 10.1186/s13071-017-2281-7 RESEARCH Open Access The substructure of three repetitive DNA regions of Schistosoma haematobium group species as a potential marker for species recognition and interbreeding detection Ibrahim Abbasi1,2, Bonnie L. Webster3,4,5, Charles H. King6, David Rollinson3,4,5 and Joseph Hamburger1* Abstract Background: Schistosoma haematobium is the causative agent of human urogenital schistosomiasis affecting ~112 million people in Africa and the Middle East. The parasite is transmitted by snails of the genus Bulinus, which also transmit other closely related human and animal schistosomes. The accurate discrimination of S. haematobium from species infecting animals will aid effective control and elimination programs. Previously we have shown the utility of different repetitive nuclear DNA sequences (DraI, sh73bp, and sh77bp) for the identification of S. haematobium- group species and inter-repeat sequences for discriminating S. haematobium from S. bovis. Results: In this current study we clarify the structural arrangement and association between the three repetitive sequences (DraI, sh73bp, and sh77bp) in both S. haematobium and S. bovis, with a unique repeat linker being found in S. haematobium (Sh64bp repeat linker) and in S. bovis (Sb30bp repeat linker). Sequence data showed that the 3′- end of the repeat linker was connected to the DraI repetitive sequence array, and at the 5′-end of the repeat linker sh73bp and sh77bp were arranged in an alternating manner. Species-specific oligonucleotides were designed targeting the species-specific repeat linkers and used in a reverse line blot (RLB) hybridization assay enabling differentiation between S.