Markers/parameters for the evaluation of natural resistance status of small ruminants against gastrointestinal nematodes

Animal : an International Journal of Animal Bioscience
Hafiz A SaddiqiM A Shahzad

Abstract

The high prevalence of anthelmintic-resistant gastrointestinal nematodes (GINs) throughout the world has led to the need for alternative worm control strategies. One of the possible substitutes to reduce the problems of drug resistance and residue is the evaluation/breeding of small ruminants for greater resistance to the GINs (organically produced), which in turn would be a helpful tool to predict the performance of an animal. At present, the existing diversity in the genetic potential to resist/tolerate GINs infection both within and between breeds has been validated. Successful selection of animals to define the genotype and identified resistance is related to the employed markers. A number of phenotypic traits such as faecal egg count (FEC), worm burden, serum antibodies, peripheral eosinophilia, packed cell volume, live weight, serum protein and albumin concentrations have been used for this purpose both in natural and artificial infections. Relatively resistant/tolerant animals have also been found to have mastocytosis, globule leucocytes, high levels of histamine and immunoglobulin (Ig) A and IgE concentrations. Of these traits, the principal and most practical measurement used to assess resistance status in animals unde...Continue Reading

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Citations

Aug 19, 2015·Parasitology·Romain GarnierAndrea L Graham
Aug 16, 2016·Tropical Animal Health and Production·Jovanny Gaspar Palomo-CouohJuan Gabriel Magaña-Monforte
Oct 4, 2016·Veterinary Parasitology·Miriam C ScheuerleKurt Pfister
Mar 13, 2014·Journal of Leukocyte Biology·Rebecca K MartinDaniel H Conrad
Jun 11, 2016·ASN Neuro·Mikkel Bredholt, Jette Lautrup Frederiksen
Jan 11, 2019·Parasitology Research·Claudia V Zaragoza-VeraAlma C Berumen-Alatorre
Nov 15, 2021·International Journal for Parasitology·John S GilleardBrown Besier

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Anthelmintics (ASM)

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.

Anthelmintics

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.