Predation on free‐ranging poultry by mammalian and avian predators: field loss estimates in a French rural area

Stahl, P.; Ruette, Sandrine; Gros, L.

doi:10.1046/j.1365-2907.2002.00110.x

Cited by 35 publications

(32 citation statements)

References 6 publications

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“…Globally, dogs and feral cats are common household poultry killers (Kusina et al 2001;Stahl et al 2002; . Nocturnal predators such as civet cats and foxes can also gain entry to duck housing by digging under the walls at night.…”

Section: Duck Mortalities Due To Diseases and Predationmentioning

confidence: 99%

Monitoring the health and production of household Jinding ducks on Hatia Island of Bangladesh

Hoque

Skerratt

Rahman

et al. 2010

Trop Anim Health Prod

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Duck rearing is an important component of sustainable living in poor rural communities, especially as a source of subsistence. A study was conducted on 118 households (N = 1,373 Jinding ducks, Anas platyrhynchus) from December 2002 to February 2004 on Hatia Island in Bangladesh with the aim of identifying the factors that limit the health and production of Jinding ducks. Overall duck mortality was 29.3%, with disease (19.7%) being a more significant factor than predation (9.6%; p = 0.001). Duck mortality also varied significantly among study zones (p < 0.001). Common diseases were duck plague (21.1%) and duck cholera (32.1%). Helminth infection was prevalent, with endemic trematode (Prosthogonimus spp., Trichobilharzia spp., Echinostoma spp.) and nematode (Cyathostoma bronchialis, Amidostomum anseris, Heterakis gallinarum, Capillaria spp., and Echinuria spp.) infections and epidemic cestode infections due to Hymenolepsis setigera. The median egg production rate per duck per household was 93 for a 6-month laying period. The odds of diminished egg production (average ≤ 93 eggs per duck per household for a 6-month laying period) was 25.4 times higher in ducks that were kept in traditional duck houses (p < 0.001) and 14.2 times higher in ducks that experienced delays in the onset of sexual maturity (days 191 and 280; p < 0.001). Ducks that were provided snails for a shorter period of time over the laying period were 18.2 times more likely to produce fewer eggs than their longer fed peers (p = 0.002). In conclusion, duck mortalities due to diseases and predation and parasitic infections appear to be common constraints on household duck production on Hatia Island. Additionally, improving duck housing and providing longer nutritional supplementation with snails increased the production capabilities of household-raised Jinding ducks on Hatia Island.

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Section: Duck Mortalities Due To Diseases and Predationmentioning

confidence: 99%

Monitoring the health and production of household Jinding ducks on Hatia Island of Bangladesh

Hoque

Skerratt

Rahman

et al. 2010

Trop Anim Health Prod

View full text Add to dashboard Cite

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“…Future studies could conduct cost-benefit analyses of higher welfare standards enabling a more complete assessment of alternative options. Dawkins et al 2003;Ellendorff et al 2002;Fanatico et al 2005;Feddes et al 2002;Ghosh et al 2012;Knierim 2013;Puron et al 1995;Reiter und Bessei 2000;Stahl et al 2002;Tuyttens et al 2008;Wolf-Reuter 2004 Bodenhaltung Das Töten von Eintagsküken ist sowohl in der konventionellen als auch in der ökologischen Haltung von Legehennen üblich, weil die Mast der männlichen Küken der Legelinien aufgrund der geringen Mastleistung unrentabel ist (Damme 2015;Rautenschlein 2016). Die Geschlechtsbestimmung im Ei, die Mast der männlichen Tiere der Legehybriden oder Zweinutzungshuhnrassen bilden drei Alternativen zur Eintagskükentötung (Bruijnis et al 2015).…”

Section: Discussionunclassified

SocialLab – Nutztierhaltung im Spiegel der Gesellschaft

Christoph‐Schulz¹,

Brümmer

Rovers

et al. 2018

J Consum Prot Food Saf

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“…Raptor activity, particularly diurnal species such as buzzard and sparrowhawk, in and around release pens is very noticeable with the subsequent discovery of killed poults often attributed to the observed raptor. In France, a detailed field study to quantify losses of free-range poultry to predators contradicted farmers' belief that raptors and corvids had a major impact on poultry (Stahl et al 2002). Farmers' overestimation of losses to avian predators was considered due to their being more likely to attack during the day, perching in the area, rarely removing prey from the site and eating prey in situ.…”

Section: Extent and Magnitude Of Impactsmentioning

confidence: 99%

Impacts and management of common buzzards Buteo buteo at pheasant Phasianus colchicus release pens in the UK: a review

Parrott

2015

Eur J Wildl Res

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In the UK, alongside an expanding common buzzard population, there is increasing concern of raptor predation at pheasant release pens. Historically, losses of poults to raptor predation has been low, commonly (90 % of shoots) ≤1 % of birds released into pens, representing a small percentage of losses relative to all causes of mortality. A small number of shoots did suffer higher losses, estimated at >5 % at one in 30 estates and >10 % at some estates. Predation was lower (i) with increased poult age at release, (ii) in later releases, (iii) in pens with good vegetative cover, (iv) in pens within woods <50 acres and (v) in releases of <500 birds; there were also indications that predation was greater in high-density releases. Studies found no evidence for indirect losses (i.e. nonpredation impacts of raptor activity, e.g. panic-induced smothering events). Mitigation measures include the following: (i) sufficient vegetative cover (supplemented if necessary, e.g. brash piles), (ii) minimise perching opportunities for raptors, (iii) stock older poults, (iv) stock at recommended densities, (v) reflective tape and scaring devices and (vi) diversionary feeding. Significant gaps in knowledge were identified, including (i) predation being incompletely evaluated in the context of contemporary buzzard populations, (ii) indirect effects not adequately studied, (iii) occurrence of 'problem' individual buzzards is unclear, (iv) adequate field trials of mitigation measures are lacking and (v) level of gamekeepers' adherence to industry recommendations not known. Contemporary studies of these issues are necessary to understand the impacts and to inform management of buzzards at pheasant release pens.

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Predation on free‐ranging poultry by mammalian and avian predators: field loss estimates in a French rural area

Cited by 35 publications

References 6 publications

Monitoring the health and production of household Jinding ducks on Hatia Island of Bangladesh

Monitoring the health and production of household Jinding ducks on Hatia Island of Bangladesh

SocialLab – Nutztierhaltung im Spiegel der Gesellschaft

Impacts and management of common buzzards Buteo buteo at pheasant Phasianus colchicus release pens in the UK: a review

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