Nematode Species Identification-Current Status, Challenges and Future Perspectives for Cyathostomins.
Abstract: Human and animal health is globally affected by a variety of parasitic helminths. The impact of co-infections and development of anthelmintic resistance requires improved diagnostic tools, especially for parasitic nematodes e.g., to identify resistant species or attribute pathological effects to individual species or particular species combinations. In horses, co-infection with cyathostomins is rather a rule than an exception with typically 5 to 15 species (out of more than 40 described) per individual host. In cyathostomins, reliable morphological species differentiation is currently limited to adults and requires highly specialized expertize while precise morphological identification of eggs and early stage larvae is impossible. The situation is further complicated by a questionable validity of some cyathostomins while others might actually represent cryptic species complexes. Several molecular methods using different target sequences were established to overcome these limitations. For adult worms, PCR followed by sequencing of mitochondrial genes or external or internal ribosomal RNA spacers is suitable to genetically confirm morphological identifications. The most commonly used method to differentiate eggs or larvae is the reverse-line-blot hybridization assay. However, both methods suffer from the fact that target sequences are not available for many species or even that GenBank® entries are unreliable regarding the cyathostomin species. Recent advances in proteomic tools for identification of metazoans including insects and nematodes of the genus will be evaluated for suitability to diagnose cyathostomins. Future research should focus on the comparative analysis of morphological, molecular and proteomic data from the same cyathostomin specimen to optimize tools for species-specific identification.
Publication Date: 2017-06-28 PubMed ID: 28702376PubMed Central: PMC5487379DOI: 10.3389/fcimb.2017.00283Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
This study discusses the challenges and prospective tools in identifying nematode species, particularly cyathostomins, and emphasizes the importance of refining these tools due to the global impact of these parasites on human and animal health and the developing resistance against their treatment.
Presentation of the Problem
- Parasitic helminths adversely affect both human and animal health worldwide. Resistance to anthelmintic treatments and co-infection complexity necessitate the refinement of diagnostic tools.
- This problem is particularly pressing considering cyathostomins, a type of parasitic nematode, given their multiple species and widespread co-infection in horses.
- Current identification methods are heavily dependent on highly specialized expertise for adult stages and are inadequate for early-stage identification.
Existing Methods and Their Limitations
- Presently, molecular methods have been employed to sidestep morphological identification constraints. These involve techniques such as Polymerase Chain Reaction (PCR) and sequencing of mitochondrial genes or ribosomal RNA spacers.
- The reverse-line-blot hybridization assay is commonly used to discern eggs or larvae.
- Nevertheless, these molecular methods are deficient as they rely on target sequences which are unavailable for many species, and the existing GenBank® entries are often unreliable with regards to the cyathostomin species.
Evaluation and Future Perspective
- Advancements in proteomic tools for identifying metazoans, including nematodes of the genus, are under review as a possible solution for the diagnosis of cyathostomins.
- Future research needs to scrutinize the composite analysis comprising morphological, molecular, and proteomic data derived from single cyathostomin specimen. This targeted and multifaceted approach could potentially streamline and optimize tools for species-specific identification, enabling more effective treatment strategies.
Cite This Article
APA
Bredtmann CM, Krücken J, Murugaiyan J, Kuzmina T, von Samson-Himmelstjerna G.
(2017).
Nematode Species Identification-Current Status, Challenges and Future Perspectives for Cyathostomins.
Front Cell Infect Microbiol, 7, 283.
https://doi.org/10.3389/fcimb.2017.00283 Publication
Researcher Affiliations
- Department of Veterinary Medicine, Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität BerlinBerlin, Germany.
- Department of Veterinary Medicine, Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität BerlinBerlin, Germany.
- Department of Veterinary Medicine, Institute for Animal Hygiene and Environmental Health, Freie Universität BerlinBerlin, Germany.
- Department of Parasitology, I.I. Schmalhausen Institute of ZoologyKyiv, Ukraine.
- Department of Veterinary Medicine, Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität BerlinBerlin, Germany.
MeSH Terms
- Animals
- Horse Diseases / diagnosis
- Horse Diseases / parasitology
- Horses
- Humans
- Nematoda / classification
- Nematoda / genetics
- Nematoda / immunology
- Nematoda / isolation & purification
- Nematode Infections / diagnosis
- Nematode Infections / parasitology
- Nematode Infections / veterinary
- Parasitology / methods
- Parasitology / trends
- Species Specificity
- Strongylida / classification
- Strongylida / genetics
- Strongylida / immunology
- Strongylida / isolation & purification
References
This article includes 72 references
- Ahmad F, Gopal J, Wu HF. Rapid and highly sensitive detection of single nematode via direct MALDI Mass Spectrometry.. Talanta 2012 May 15;93:182-5.
- Bevilaqua C. M. L., Rodrigues M., de L., Concordet D.. Identification of infective larvae of some common nematode strongylids of horses. Rev. Med. Vet. 144, 989–995.
- Blouin MS. Molecular prospecting for cryptic species of nematodes: mitochondrial DNA versus internal transcribed spacer.. Int J Parasitol 2002 May;32(5):527-31.
- Brianti E, Giannetto S, Traversa D, Chirgwin SR, Shakya K, Klei TR. In vitro development of cyathostomin larvae from the third stage larvae to the fourth stage: morphologic characterization, effects of refrigeration, and species-specific patterns.. Vet Parasitol 2009 Aug 26;163(4):348-56.
- Bu Y, Niu H, Zhang L. Phylogenetic analysis of the genus Cylicocyclus (Nematoda: Strongylidae) based on nuclear ribosomal sequence data.. Acta Parasitol 2013 Jun;58(2):167-73.
- Campbell AJ, Gasser RB, Chilton NB. Differences in a ribosomal DNA sequence of Strongylus species allows identification of single eggs.. Int J Parasitol 1995 Mar;25(3):359-65.
- Chapman MR, Hutchinson GW, Cenac MJ, Klei TR. In vitro culture of equine strongylidae to the fourth larval stage in a cell-free medium.. J Parasitol 1994 Apr;80(2):225-31.
- Chilton NB. The use of nuclear ribosomal DNA markers for the identification of bursate nematodes (order Strongylida) and for the diagnosis of infections.. Anim Health Res Rev 2004 Dec;5(2):173-87.
- Chilton NB, Gasser RB, Beveridge I. Phylogenetic relationships of Australian strongyloid nematodes inferred from ribosomal DNA sequence data.. Int J Parasitol 1997 Dec;27(12):1481-94.
- Clark AE, Kaleta EJ, Arora A, Wolk DM. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: a fundamental shift in the routine practice of clinical microbiology.. Clin Microbiol Rev 2013 Jul;26(3):547-603.
- Corning S. Equine cyathostomins: a review of biology, clinical significance and therapy.. Parasit Vectors 2009 Sep 25;2 Suppl 2(Suppl 2):S1.
- Cwiklinski K, Kooyman FN, Van Doorn DC, Matthews JB, Hodgkinson JE. New insights into sequence variation in the IGS region of 21 cyathostomin species and the implication for molecular identification.. Parasitology 2012 Jul;139(8):1063-73.
- Dowdall SM, Matthews JB, Mair T, Murphy D, Love S, Proudman CJ. Antigen-specific IgG(T) responses in natural and experimental cyathostominae infection in horses.. Vet Parasitol 2002 Jun 26;106(3):225-42.
- Dowdall SM, Proudman CJ, Klei TR, Mair T, Matthews JB. Characterisation of IgG(T) serum antibody responses to two larval antigen complexes in horses naturally- or experimentally-infected with cyathostomins.. Int J Parasitol 2004 Jan;34(1):101-8.
- Dowdall SM, Proudman CJ, Love S, Klei TR, Matthews JB. Purification and analyses of the specificity of two putative diagnostic antigens for larval cyathostomin infection in horses.. Res Vet Sci 2003 Dec;75(3):223-9.
- Cernanská D, Paoletti B, Králová-Hromadová I, Iorio R, Cudeková P, Milillo P, Traversa D. Application of a Reverse Line Blot hybridisation assay for the species-specific identification of cyathostomins (Nematoda, Strongylida) from benzimidazole-treated horses in the Slovak Republic.. Vet Parasitol 2009 Mar 9;160(1-2):171-4.
- Drudge JH, Lyons ET. Methods in the evaluation of antiparasitic drugs in the horse.. Am J Vet Res 1977 Oct;38(10):1581-6.
- DRUDGE JH, SZANTO J, WYANT ZN, ELAM G. CRITICAL TESTS OF THIABENDAZOLE AS AN ANTHELMINTIC IN THE HORSE.. Am J Vet Res 1963 Nov;24:1217-22.
- Dvojnos G. M., Kharchenko V. O.. Strongylids of Wild and Domestic Horses (in Russian). Kiev: Naukova Dumka.
- Elder JF Jr, Turner BJ. Concerted evolution of repetitive DNA sequences in eukaryotes.. Q Rev Biol 1995 Sep;70(3):297-320.
- Gasser RB, Monti JR. Identification of parasitic nematodes by PCR-SSCP of ITS-2 rDNA.. Mol Cell Probes 1997 Jun;11(3):201-9.
- Gasser RB, Newton SE. Genomic and genetic research on bursate nematodes: significance, implications and prospects.. Int J Parasitol 2000 Apr 10;30(4):509-34.
- Herd R. P.. The changing world of worms: the rise of the cyathostomes and the decline of strongylus vulgaris. Compend. Contin. Educ. Pract. Vet. 12, 732–736.
- Hodgkinson JE, Freeman KL, Lichtenfels JR, Palfreman S, Love S, Matthews JB. Identification of strongyle eggs from anthelmintic-treated horses using a PCR-ELISA based on intergenic DNA sequences.. Parasitol Res 2005 Mar;95(4):287-92.
- Hodgkinson JE, Lichtenfels JR, Mair TS, Cripps P, Freeman KL, Ramsey YH, Love S, Matthews JB. A PCR-ELISA for the identification of cyathostomin fourth-stage larvae from clinical cases of larval cyathostominosis.. Int J Parasitol 2003 Oct;33(12):1427-35.
- Hoppenheit A, Murugaiyan J, Bauer B, Steuber S, Clausen PH, Roesler U. Identification of Tsetse (Glossina spp.) using matrix-assisted laser desorption/ionisation time of flight mass spectrometry.. PLoS Negl Trop Dis 2013;7(7):e2305.
- Hung GC, Chilton NB, Beveridge I, Gasser RB. A molecular systematic framework for equine strongyles based on ribosomal DNA sequence data.. Int J Parasitol 2000 Jan;30(1):95-103.
- Hung GC, Chilton NB, Beveridge I, McDonnell A, Lichtenfels JR, Gasser RB. Molecular delineation of Cylicocyclus nassatus and C. ashworthi (Nematoda:Strongylidae).. Int J Parasitol 1997 May;27(5):601-5.
- Hung GC, Chilton NB, Beveridge I, Zhu XQ, Lichtenfels JR, Gasser RB. Molecular evidence for cryptic species within Cylicostephanus minutus (Nematoda: Strongylidae).. Int J Parasitol 1999 Feb;29(2):285-91.
- Hung GC, Gasser RB, Beveridge I, Chilton NB. Species-specific amplification by PCR of ribosomal DNA from some equine strongyles.. Parasitology 1999 Jul;119 ( Pt 1):69-80.
- Ionita M, Howe DK, Lyons ET, Tolliver SC, Kaplan RM, Mitrea IL, Yeargan M. Use of a reverse line blot assay to survey small strongyle (Strongylida: Cyathostominae) populations in horses before and after treatment with ivermectin.. Vet Parasitol 2010 Mar 25;168(3-4):332-7.
- Kaplan RM. Anthelmintic resistance in nematodes of horses.. Vet Res 2002 Sep-Oct;33(5):491-507.
- Karger A, Kampen H, Bettin B, Dautel H, Ziller M, Hoffmann B, Süss J, Klaus C. Species determination and characterization of developmental stages of ticks by whole-animal matrix-assisted laser desorption/ionization mass spectrometry.. Ticks Tick Borne Dis 2012 Apr;3(2):78-89.
- Kaye JN, Love S, Lichtenfels JR, McKeand JB. Comparative sequence analysis of the intergenic spacer region of cyathostome species.. Int J Parasitol 1998 May;28(5):831-6.
- Kharchenko V, Kuzmina T, Trawford A, Getachew M, Feseha G. Morphology and diagnosis of some fourth-stage larvae of cyathostomines (Nematoda: Strongyloidea) in donkeys Equus asinus L. from Ethiopia.. Syst Parasitol 2009 Jan;72(1):1-13.
- Kooyman FN, van Doorn DC, Geurden T, Wagenaar JA. Semi-quantitative differentiation of cyathostomin larval cultures by reverse line blot.. Vet Parasitol 2016 Jan 30;216:59-65.
- Kornaś S, Gawor J, Cabaret J, Molenda K, Skalska M, Nowosad B. Morphometric identification of equid cyathostome (Nematoda: Cyathostominae) infective larvae.. Vet Parasitol 2009 Jun 10;162(3-4):290-4.
- Kuzmina TA, Kharchenko VA, Starovir AI, Dvojnos GM. Analysis of the strongylid nematodes (Nematoda: Strongylidae) community after deworming of brood horses in Ukraine.. Vet Parasitol 2005 Aug 10;131(3-4):283-90.
- Kuzmina TA, Kharchenko VO. Anthelmintic resistance in cyathostomins of brood horses in Ukraine and influence of anthelmintic treatments on strongylid community structure.. Vet Parasitol 2008 Jul 4;154(3-4):277-88.
- Lichtenfels J. R.. Helminths of Domestic Equids. Illustrated keys to genera and species with emphasis on North American forms. Proc. Helminthol. Soc. Wash. 42, 1–83.
- Lichtenfels JR. Identification keys to strongylid nematode parasites of equids. Preface.. Vet Parasitol 2008 Sep 15;156(1-2):1-3.
- Lichtenfels JR, Gibbons LM, Krecek RC. Recommended terminology and advances in the systematics of the Cyathostominea (Nematoda: Strongyloidea) of horses.. Vet Parasitol 2002 Aug 22;107(4):337-42.
- Lichtenfels JR, Kharchenko VA, Dvojnos GM. Illustrated identification keys to strongylid parasites (Strongylidae: Nematoda) of horses, zebras and asses (Equidae).. Vet Parasitol 2008 Sep 15;156(1-2):4-161.
- Lichtenfels JR, Kharchenko VA, Krecek RC, Gibbons LM. An annotated checklist by genus and species of 93 species level names for 51 recognized species of small strongyles (Nematoda: Strongyloidea: Cyathostominea) of horses, asses and zebras of the world.. Vet Parasitol 1998 Sep;79(1):65-79.
- Long EO, Dawid IB. Repeated genes in eukaryotes.. Annu Rev Biochem 1980;49:727-64.
- Loos A.. Notizen zur Helminthologie Egyptens. III. Die Sclerostomen der Pferde und Esel in Egypten. Cent. Bakteriol. 1, 150–160–192.
- Love S, Murphy D, Mellor D. Pathogenicity of cyathostome infection.. Vet Parasitol 1999 Aug 31;85(2-3):113-21; discussion 121-2, 215-25.
- Lyons ET, Tolliver SC, Collins SS. Study (1991 to 2001) of drug-resistant Population B small strongyles in critical tests in horses in Kentucky at the termination of a 40-year investigation.. Parasitol Res 2007 Aug;101(3):689-701.
- Lyons ET, Tolliver SC, Drudge JH. Historical perspective of cyathostomes: prevalence, treatment and control programs.. Vet Parasitol 1999 Aug 31;85(2-3):97-111; discussion 111-2, 215-25.
- Lyons ET, Tolliver SC, Kuzmina TA, Collins SS. Critical tests evaluating efficacy of moxidectin against small strongyles in horses from a herd for which reduced activity had been found in field tests in Central Kentucky.. Parasitol Res 2010 Nov;107(6):1495-8.
- Matthews JB. Anthelmintic resistance in equine nematodes.. Int J Parasitol Drugs Drug Resist 2014 Dec;4(3):310-5.
- Mayer-Scholl A, Murugaiyan J, Neumann J, Bahn P, Reckinger S, Nöckler K. Rapid Identification of the Foodborne Pathogen Trichinella spp. by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry.. PLoS One 2016;11(3):e0152062.
- McDonnell A, Love S, Tait A, Lichtenfels JR, Matthews JB. Phylogenetic analysis of partial mitochondrial cytochrome oxidase c subunit I and large ribosomal RNA sequences and nuclear internal transcribed spacer I sequences from species of Cyathostominae and Strongylinae (Nematoda, Order Strongylida), parasites of the horse.. Parasitology 2000 Dec;121 Pt 6:649-59.
- McWilliam HE, Nisbet AJ, Dowdall SM, Hodgkinson JE, Matthews JB. Identification and characterisation of an immunodiagnostic marker for cyathostomin developing stage larvae.. Int J Parasitol 2010 Mar 1;40(3):265-75.
- Mitchell MC, Tzelos T, Handel I, McWilliam HE, Hodgkinson JE, Nisbet AJ, Kharchenko VO, Burgess ST, Matthews JB. Development of a recombinant protein-based ELISA for diagnosis of larval cyathostomin infection.. Parasitology 2016 Jul;143(8):1055-66.
- Molin R.. Il sottordine degli acrofalli ordinato scientificamente secondo i risultamenti delle indagini anatomiche ed embrigeniche. Mem. R. Ist. Veneto Sc. Lett Arti 9, 427–633.
- Murphy D, Love S. The pathogenic effects of experimental cyathostome infections in ponies.. Vet Parasitol 1997 Jun;70(1-3):99-110.
- Nielsen MK, Reinemeyer CR, Donecker JM, Leathwick DM, Marchiondo AA, Kaplan RM. Anthelmintic resistance in equine parasites--current evidence and knowledge gaps.. Vet Parasitol 2014 Jul 30;204(1-2):55-63.
- Osterman Lind E, Eysker M, Nilsson O, Uggla A, Höglund J. Expulsion of small strongyle nematodes (cyathostomin spp) following deworming of horses on a stud farm in Sweden.. Vet Parasitol 2003 Aug 14;115(4):289-99.
- Perera MR, Vanstone VA, Jones MG. A novel approach to identify plant parasitic nematodes using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.. Rapid Commun Mass Spectrom 2005;19(11):1454-60.
- Perera M., Taylor S., Jones M., Vanstone V.. Protein biomarkers to distinguish oat and lucerne races of the stem nematode, Ditylenchus dipsaci, with quarantine significance for Western Australia. Nematology 11, 555–563.
- Santos D. W., Dias de Castro L. L., Giese E. G., Molento M. B.. Morphometric study of infective larvae of cyathostomins of horses and their distribution. J. Equine Vet. Sci. 44, 49–53.
- Singhal N, Kumar M, Virdi JS. MALDI-TOF MS in clinical parasitology: applications, constraints and prospects.. Parasitology 2016 Oct;143(12):1491-500.
- Smyth J. D.. In Vitro Cultivation of Parasitic Helminths. Boca Raton, FL: CRC Press Inc..
- Tolliver S. C.. A Practical Method of Identification of the North American Cyathostomes (Small Strongyles) in Equid in Kentucky. Lexington: University of Kentucky, Department of Veterinary Science.
- Traversa D, Iorio R, Klei TR, Kharchenko VA, Gawor J, Otranto D, Sparagano OA. New method for simultaneous species-specific identification of equine strongyles (nematoda, strongylida) by reverse line blot hybridization.. J Clin Microbiol 2007 Sep;45(9):2937-42.
- Traversa D, Kuzmina T, Kharchenko VA, Iorio R, Klei TR, Otranto D. Haplotypic variability within the mitochondrial gene encoding for the cytochrome c oxidase 1 (cox1) of Cylicocyclus nassatus (Nematoda, Strongylida): evidence for an affiliation between parasitic populations and domestic and wild equid hosts.. Vet Parasitol 2008 Oct 1;156(3-4):241-7.
- Traversa D, Milillo P, Barnes H, von Samson-Himmelstjerna G, Schurmann S, Demeler J, Otranto D, Lia RP, Perrucci S, Frangipane di Regalbono A, Beraldo P, Amodie D, Rohn K, Cobb R, Boeckh A. Distribution and species-specific occurrence of cyathostomins (Nematoda, Strongylida) in naturally infected horses from Italy, United Kingdom and Germany.. Vet Parasitol 2010 Feb 26;168(1-2):84-92.
- von Samson-Himmelstjerna G. Anthelmintic resistance in equine parasites - detection, potential clinical relevance and implications for control.. Vet Parasitol 2012 Apr 19;185(1):2-8.
- Wieser A, Schneider L, Jung J, Schubert S. MALDI-TOF MS in microbiological diagnostics-identification of microorganisms and beyond (mini review).. Appl Microbiol Biotechnol 2012 Feb;93(3):965-74.
- Yssouf A, Almeras L, Raoult D, Parola P. Emerging tools for identification of arthropod vectors.. Future Microbiol 2016;11(4):549-66.
- Yssouf A, Socolovschi C, Flaudrops C, Ndiath MO, Sougoufara S, Dehecq JS, Lacour G, Berenger JM, Sokhna CS, Raoult D, Parola P. Matrix-assisted laser desorption ionization--time of flight mass spectrometry: an emerging tool for the rapid identification of mosquito vectors.. PLoS One 2013;8(8):e72380.
Citations
This article has been cited 11 times.- Gattoni K, Gendron EMS, Sandoval-Ruiz R, Borgemeier A, McQueen JP, M Shepherd R, Slos D, O Powers T, L Porazinska D. 18S-NemaBase: Curated 18S rRNA Database of Nematode Sequences.. J Nematol 2023 Feb;55(1):20230006.
- Boelow H, Krücken J, von Samson-Himmelstjerna G. Epidemiological study on factors influencing the occurrence of helminth eggs in horses in Germany based on sent-in diagnostic samples.. Parasitol Res 2023 Mar;122(3):749-767.
- Feucherolles M, Nennig M, Becker SL, Martiny D, Losch S, Penny C, Cauchie HM, Ragimbeau C. Combination of MALDI-TOF Mass Spectrometry and Machine Learning for Rapid Antimicrobial Resistance Screening: The Case of Campylobacter spp.. Front Microbiol 2021;12:804484.
- Tombak KJ, Hansen CB, Kinsella JM, Pansu J, Pringle RM, Rubenstein DI. The gastrointestinal nematodes of plains and Grevy's zebras: Phylogenetic relationships and host specificity.. Int J Parasitol Parasites Wildl 2021 Dec;16:228-235.
- Kästner C, Bahn P, Schönfelder R, Ozoliņa Z, Alksne L, Richter MH, Deksne G, Mayer-Scholl A, Johne A. Development of a Novel Method for Identification of Alaria alata Mesocercariae by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry.. Microorganisms 2021 Aug 4;9(8).
- Johnson ACB, Biddle AS. The Use of Molecular Profiling to Track Equine Reinfection Rates of Cyathostomin Species Following Anthelmintic Administration.. Animals (Basel) 2021 May 9;11(5).
- Louro M, Kuzmina TA, Bredtmann CM, Diekmann I, de Carvalho LMM, von Samson-Himmelstjerna G, Krücken J. Genetic variability, cryptic species and phylogenetic relationship of six cyathostomin species based on mitochondrial and nuclear sequences.. Sci Rep 2021 Apr 15;11(1):8245.
- Maestrini M, Molento MB, Mancini S, Martini M, Angeletti FGS, Perrucci S. Intestinal Strongyle Genera in Different Typology of Donkey Farms in Tuscany, Central Italy.. Vet Sci 2020 Dec 2;7(4).
- Bellaw JL, Nielsen MK. Meta-analysis of cyathostomin species-specific prevalence and relative abundance in domestic horses from 1975-2020: emphasis on geographical region and specimen collection method.. Parasit Vectors 2020 Oct 12;13(1):509.
- Feucherolles M, Poppert S, Utzinger J, Becker SL. MALDI-TOF mass spectrometry as a diagnostic tool in human and veterinary helminthology: a systematic review.. Parasit Vectors 2019 May 17;12(1):245.
- Saeed MA, Beveridge I, Abbas G, Beasley A, Bauquier J, Wilkes E, Jacobson C, Hughes KJ, El-Hage C, O'Handley R, Hurley J, Cudmore L, Carrigan P, Walter L, Tennent-Brown B, Nielsen MK, Jabbar A. Systematic review of gastrointestinal nematodes of horses from Australia.. Parasit Vectors 2019 Apr 29;12(1):188.
Use Nutrition Calculator
Check if your horse's diet meets their nutrition requirements with our easy-to-use tool Check your horse's diet with our easy-to-use tool
Talk to a Nutritionist
Discuss your horse's feeding plan with our experts over a free phone consultation Discuss your horse's diet over a phone consultation
Submit Diet Evaluation
Get a customized feeding plan for your horse formulated by our equine nutritionists Get a custom feeding plan formulated by our nutritionists