Do the changes in the behaviours of cattle during parasitism with Ostertagia ostertagi have a potential diagnostic value?

Szyszka, Ollie; Tolkamp, B.J.; Edwards, Sandra A.; Kyriazakis, Ι.

doi:10.1016/j.vetpar.2012.10.023

Cited by 24 publications

(14 citation statements)

References 32 publications

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“…Szyszka and Kyriazakis [ 37 ] note that only animals with high levels of L3 infection show behavioral differences and only at a certain period after infection, until larvae matures. Lower levels of infection do not cause behavioral changes.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Gastrointestinal Nematode Infection Level on Grazing Distance from Dung

et al. 2015

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Avoiding grazing near feces is an efficient strategy to prevent parasitic infection and contamination; therefore, in the evolution of herbivorous species, this behavior may have developed as a mechanism to protect the host against infection by gastrointestinal nematodes. The aim of this study was to assess whether grazing distance from dung is related to the level of parasitic infection in cattle. Based on Fecal Egg Count (FEC) means, 18 castrated male steers, aged 18 months, were divided into three groups: High (FEC ≥ 315); Medium (FEC = 130–160); and Low (FEC = 40–70). To analyze the response to a new natural infection by gastrointestinal nematodes and to standardize infection levels, all animals received anthelmintic treatment at twenty days prior to field observation. Three observers simultaneously collected data on grazing behavior for 2.5 hours/week for 12 weeks. Observers recorded the distance when grazing occurred at less than one meter from dung. Every two weeks, fecal samples were collected for FEC, as well as serum samples to measure immunoglobulin G (IgG) levels against larvae and adult antigens of the parasitic species Haemonchus placei. All groups grazed farther from the dung on days of greater insolation (r = 0.62; P = 0.03). Animals with high levels of parasitism grazed farther from the dung (P < 0.05) but had lower levels (P < 0.0001) of IgG serum levels compared to those with medium and low levels of infection. FEC values varied over the experiment, remaining below 200 for the low and medium group and reaching 1000 (P < 0.01) for the animals with the highest rates of parasitism. Our results indicate that cattle showing high levels of parasitism are more likely to avoid contaminated areas than animals with lower infection levels, and the immune system seems to be involved in such behavior.

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Section: Discussionmentioning

confidence: 99%

The Effect of Gastrointestinal Nematode Infection Level on Grazing Distance from Dung

et al. 2015

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“…Thus, advances in electronic technology (e.g. 3D accelerometers), offers novel tools to monitor and detect host welfare and behavioural responses to parasitism and to link these to targeted control efforts [36]. Further, positive behaviours that allow livestock to avoid or suppress infection, such as self-medication and selective grazing, may be identified as markers to selectively breed for 'behavioural' resistance [37].…”

Section: Measuring Behavioural Impacts Of Parasitismmentioning

confidence: 99%

100 Questions in Livestock Helminthology Research

Morgan

Aziz

Blanchard³

et al. 2019

Trends in Parasitology

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An elicitation exercise was conducted to collect and identify pressing questions concerning the study of helminths in livestock, to help guide research priorities. Questions were invited from the research community in an inclusive way. Of 385 questions submitted, 100 were chosen by online vote, with priority given to open questions in important areas that are specific enough to permit investigation within a focused project or programme of research. The final list of questions was divided into ten themes. We present the questions and set them briefly in the context of the current state of knowledge. Although subjective, results provide a snapshot of current concerns and perceived priorities in the field of livestock helminthology, and we hope will stimulate ongoing or new research efforts.

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“…Several concepts that could greatly benefit from these novel technologies have already been explored in the field of helminth control. For instance, GI parasitism is known to alter grazing behaviour and changes in this behaviour, e.g., when detected by location or activity, can be used for diagnostic purposes (Szyszka et al 2013); animal movement or sound analysers could alert for coughing on pasture due to lungworms, or assess which animals have been grazing areas contaminated with liver fluke metacercariae (De Roeck et al, 2014), while a wireless pH sensor (e.g., Weinstein et al 2013) in the abomasum could be used to monitor parasitic gastritis and optimize feeding regimens. Diagnostic markers of parasitic infection, currently detectable in milk, saliva or faeces (Charlier et al 2014b;Shaw et al 2013), will be evaluated in sweat and could reach a next level in ease of use.…”

Section: Translation Of New Diagnostic Technologies To Manage Parasitmentioning

confidence: 99%

Control of helminth ruminant infections by 2030

Charlier²,

et al. 2018

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Helminth infections have large negative impacts on production efficiency in ruminant farming systems worldwide, and their effective management is essential if livestock production is to increase to meet future human needs for dietary protein. The control of helminths relies heavily on routine use of chemotherapeutics, but this approach is unsustainable as resistance to anthelmintic drugs is widespread and increasing. At the same time, infection patterns are being altered by changes in climate, land-use and farming practices. Future farms will need to adopt more efficient, robust and sustainable control methods, integrating ongoing scientific advances. Here, we present a vision of helminth control in farmed ruminants by 2030, bringing to bear progress in: (1) diagnostic tools, (2) innovative control approaches based on vaccines and selective breeding, (3) anthelmintics, by sustainable use of existing products and potentially new compounds, and (4) rational integration of future control practices. In this review, we identify the technical advances that we believe will place new tools in the hands of animal health decision makers in 2030, to enhance their options for control and allow them to achieve a more integrated and sustainable approach to helminth control in support of animal welfare and production.

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Do the changes in the behaviours of cattle during parasitism with Ostertagia ostertagi have a potential diagnostic value?

Cited by 24 publications

References 32 publications

The Effect of Gastrointestinal Nematode Infection Level on Grazing Distance from Dung

The Effect of Gastrointestinal Nematode Infection Level on Grazing Distance from Dung

100 Questions in Livestock Helminthology Research

Control of helminth ruminant infections by 2030

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