Goat–Nematode interactions: think differently

Hoste, Hervé; Sotiraki, Smaragda; Landau, S.; Jackson, F.; Beveridge, Ian

doi:10.1016/j.pt.2010.04.007

Cited by 146 publications

(103 citation statements)

References 49 publications

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“…Due to low exposure of adult animals to infective stages by the end of grazing season in 2011 the egg excretion in 2012 was lower when compared to those on Farm A (P > 0.05) and Farm B (P > 0.05). The clinical manifestation of trichostrongylid infection usually may be observed in kids, as fully expressed immune response against parasites appears in the age of 12 months (Hoste et al, 2010). In the present study kids less than 6 months of age were less infected with strongyles, while young goats older than 6 months of age had higher egg excretion when compared to those of adults.…”

Section: Discussionsupporting

confidence: 47%

The impact of grazing management on seasonal activity of gastrointestinal parasites in goats

2014

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SummaryThe aim of this study was to examine the impact of grazing management and other risk factors (age, treatment practices) on seasonal activity of gastrointestinal (GI) parasites in goats. Goat flocks naturally infected with GI parasites reared on four Lithuanian farms representing different management regimes were examined during the grazing season in 2011/2012. On three farms the adult goats were grazed in different ways on open pastures (with or without supplementary feeding) or tethered. On one farm all animals were kept indoor (zero-grazing). On each farm, samples were collected at monthly intervals from 13 -15 adult and 10 kids. The results showed that grazing of adult goats with feed supplementation or kept indoor, shed the lowest number of strongyle eggs when compared to those kept on pasture (P < 0.05). Delayed turnout and zero-grazing significantly reduced excretion of strongyle eggs but increased the output of oocysts when compared to those grazed on set-stocked pasture together with adult goats. The most prevalent genus on all farms and in both age groups of goats were Teladorsagia spp. This study demonstrates that goats are infected with mixed species of parasites, but proportions of these parasites differed in different grazing management systems. The grazing management, age and season were all major factors that had an impact on GI parasite infection.

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Section: Discussionsupporting

confidence: 47%

The impact of grazing management on seasonal activity of gastrointestinal parasites in goats

2014

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“…One focus will be animal ability to self-medicate in rangeland-based systems for which clear-cut evidence is still missing (Villalba and Provenza, 2007;Gradé et al, 2009). Inter-specific differences could be analyzed according to the 'fight and flight' theory against nematode infections, in which the two strategies regulating gastrointestinal infection (immune response v. behavior) are not mutually exclusive (Hoste et al, 2010). At the herd level, shepherds have developed management practices, allowing young animals to acquire plasticity in feeding choices and limiting stressful interactions with social peers or the farmer (Krätli, 2008).…”

Section: Exploiting Animal Adaptive Capacitiesmentioning

confidence: 99%

Forty research issues for the redesign of animal production systems in the 21st century

Dumont

García

Thomas

et al. 2014

Animal

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Agroecology offers a scientific and operational framework for redesigning animal production systems (APS) so that they better cope with the coming challenges. Grounded in the stimulation and valorization of natural processes to reduce inputs and pollutions in agroecosystems, it opens a challenging research agenda for the animal science community. In this paper, we identify key research issues that define this agenda. We first stress the need to assess animal robustness by measurable traits, to analyze trade-offs between production and adaptation traits at within-breed and between-breed level, and to better understand how group selection, epigenetics and animal learning shape performance. Second, we propose research on the nutritive value of alternative feed resources, including the environmental impacts of producing these resources and their associated non-provisioning services. Third, we look at how the design of APS based on agroecological principles valorizes interactions between system components and promotes biological diversity at multiple scales to increase system resilience. Addressing such challenges requires a collection of theories and models (concept-knowledge theory, viability theory, companion modeling, etc.). Acknowledging the ecology of contexts and analyzing the rationales behind traditional small-scale systems will increase our understanding of mechanisms contributing to the success or failure of agroecological practices and systems. Fourth, the large-scale development of agroecological products will require analysis of resistance to change among farmers and other actors in the food chain. Certifications and market-based incentives could be an important lever for the expansion of agroecological alternatives in APS. Finally, we question the suitability of current agriculture extension services and public funding mechanisms for scaling-up agroecological practices and systems.

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“…Sheep and goats are infected with the same principal gastrointestinal nematode species, which provoke similar pathological changes and economic consequences [1]. The parasitism with helminths, and particularly nematodes of the gastrointestinal tract, is a major threat for ruminant production, health and welfare associated with outdoor breeding [2].…”

Section: Introductionmentioning

confidence: 99%

Prevalence and Risk Factors of Gastrointestinal Parasitic Infections in Small Ruminants in the Greek Temperate Mediterranean Environment

Kantzoura¹,

Kouam²,

Theodoropoulou³

et al. 2012

OJVM

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Gastrointestinal (GI) parasitic infections of sheep and goats were investigated in 69 farms located in Thessaly region of Greece, characterized by temperate Mediterranean climate, during two consecutive seasons. A total of 557 fecal samples were collected. Helminth eggs were detected in 44 (7.9%) samples. Strongyle-type eggs were found in 19 (3.4%) samples, Nematodirus spp. eggs in 6 (1.1%) samples, Trichuris spp. eggs in 16 (2.9%) samples, Fasciola hepatica in 3 (0.5%) samples, and Dicrocoelium dendriticum in 1 (0.2%) sample. Coccidian oocysts were found in 36 (6.5%) samples. Risk factors related to animal and farmer status, farm and pasture management, and environmental factors derived by satellite data were examined for their association with the prevalence of helmith infections. A logistic regression model showed that the educational level of farmers and the elevation of farm location were associated with helminth infections.

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Goat–Nematode interactions: think differently

Cited by 146 publications

References 49 publications

The impact of grazing management on seasonal activity of gastrointestinal parasites in goats

The impact of grazing management on seasonal activity of gastrointestinal parasites in goats

Forty research issues for the redesign of animal production systems in the 21st century

Prevalence and Risk Factors of Gastrointestinal Parasitic Infections in Small Ruminants in the Greek Temperate Mediterranean Environment

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