Risicobeoordeling waterverstrekking aan vleeskuikens en vleeskuikenouderdieren

Jong, I.C. de; Koene, P.; Ellen, H.H.; Emous, R.A. van; Rommers, J.M.; Brand, H. van den

doi:10.18174/397955

Cited by 2 publications

(4 citation statements)

References 87 publications

(152 reference statements)

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“…Also, social facilitation plays a role, if young chicks do see other chicks drinking, they will go to the water source and copy the behaviour (Bestman and Keppler, 2005 ). When using drinking nipples, drinking can be stimulated by tapping or shaking the nipples so that each nipple has a visible drop of water which is attractive to the day‐old chickens (de Jong et al., 2016c ). Nipple lines should be low during the first days so that these are easily accessible by the chickens (Gussem et al., 2015 ).…”

Section: Assessmentmentioning

confidence: 99%

Welfare of broilers on farm

Nielsen¹,

Álvarez²,

Bicout³

et al. 2023

EFS2

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This Scientific Opinion considers the welfare of domestic fowl (Gallus gallus) related to the production of meat (broilers) and includes the keeping of day-old chicks, broiler breeders, and broiler chickens. Currently used husbandry systems in the EU are described. Overall, 19 highly relevant welfare consequences (WCs) were identified based on severity, duration and frequency of occurrence: 'bone lesions', 'cold stress', 'gastro-enteric disorders', 'group stress', 'handling stress', 'heat stress', 'isolation stress', 'inability to perform comfort behaviour', 'inability to perform exploratory or foraging behaviour', 'inability to avoid unwanted sexual behaviour', 'locomotory disorders', 'prolonged hunger', 'prolonged thirst', 'predation stress', 'restriction of movement', 'resting problems', 'sensory under-and overstimulation', 'soft tissue and integument damage' and 'umbilical disorders'. These WCs and their animal-based measures (ABMs) that can identify them are described in detail. A variety of hazards related to the different husbandry systems were identified as well as ABMs for assessing the different WCs. Measures to prevent or correct the hazards and/or mitigate each of the WCs are listed. Recommendations are provided on quantitative or qualitative criteria to answer specific questions on the welfare of broilers and related to genetic selection, temperature, feed and water restriction, use of cages, light, air quality and mutilations in breeders such as beak trimming, de-toeing and comb dubbing. In addition, minimal requirements (e.g. stocking density, group size, nests, provision of litter, perches and platforms, drinkers and feeders, of covered veranda and outdoor range) for an enclosure for keeping broiler chickens (fast-growing, slower-growing and broiler breeders) are recommended. Finally, 'total mortality', 'wounds', 'carcass condemnation' and 'footpad dermatitis' are proposed as indicators for monitoring at slaughter the welfare of broilers on-farm.

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Section: Assessmentmentioning

confidence: 99%

Welfare of broilers on farm

Nielsen¹,

Álvarez²,

Bicout³

et al. 2023

EFS2

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“…Although restrictions in water supply (thus: no ad libitum provision) may be applied in practice by e.g. reducing water pressure or shutting down the water supply shortly on a daily basis, it is not considered to lead to prolonged thirst as long-term water restriction affects feed intake and thus growth rate [24]. Chickens unable to reach the drinkers are not included in this measure, but will likely be included in the culling/mortality figure On-farm hatching With on-farm hatching systems broiler chickens usually have immediate access to water posthatch [23], so the chickens are supposed not to suffer from thirst during the first days post-hatch.…”

Section: % Emaciated Chickensmentioning

confidence: 99%

“…Mortality due to poor health, injuries or disease reflect poor animal welfare [ [29] or housing design may cause bruises; bruises are considered painful [19] Proportion of chickens with wing fractures Wing fractures can be related to inadequate handling [29] or housing and are painful [17,19] Proportion of chickens with leg fractures Leg fractures can be related to inadequate handling [29] or housing and are painful [19] Proportion of chickens with scratches and wounds Inadequate management, such as feeding schedule and water availability, lighting schedule, may cause crowding which may result in scratches [24]. Scabby hips are measured at the plant and are scratches at the hip/thigh area.…”

Section: Mortalitymentioning

confidence: 99%

“…The water consumption in a test situation when provided ad libitum water was related to the level of thirst in broiler chickens, however, this test needs further development and has not been validated for broiler breeders [25] Drained blood content Drained blood content seemed to be indicative of thirst due to daily controlled water supply in broilers, but this indicator needs further development before application in practice and has not been validated for broiler breeders [75] Duration of water provision There is no valid and feasible indicator of thirst in chickens or broiler breeders [24,25,75]. Restrictions in water supply can be measured as an alternative [17].…”

Section: Water Consumption In a Test Situationmentioning

confidence: 99%

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Development of the ‘animal welfare’ dimension within the Greenwell sustainability assessment model. 1.: Justification of the selection of indicators

Jong

2019

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The current report describes the development of the 'animal welfare dimension' ('welfare assessment model') within the overall Greenwell sustainability model. As we apply the framework of Welfare Quality®, in which animal health is considered one of the aspects of animal welfare, the model also includes health indicators. The model has been developed according to two steps: definition of longlists of indicators for the broiler breeder, hatchery, broiler on-farm and broiler end-of-life stage, and the selection of key indicators from these long-lists, as well as whether these need to be measured real-time or can be estimated by a representative sample or literature value. Samenvatting NL. Dit rapport beschrijft de ontwikkeling van de dimensie 'dierenwelzijn' binnen het Greenwell duurzaamheid beoordelingsinstrument (ook wel 'welzijnsmodel' genoemd). Omdat het raamwerk van Welfare Quality® wordt toegepast, waarbinnen diergezondheid wordt beschouwd als onderdeel van dierenwelzijn, bevat het welzijnsmodel ook diergezondheidsindicatoren. Het model is in twee stappen ontwikkeld: eerst volledige lijsten van mogelijke indicatoren voor de ouderdierenfase, broederijfase, vleeskuikenfase primair bedrijf en vleeskuikenfase wat betreft vangen/transport/slachten, en vervolgens de selectie van de belangrijkste indicatoren uit deze lijst. Daarbij wordt tevens aangegeven of de indicatoren continu gemonitord moeten worden of dat een inschatting op basis van de literatuur of een steekproef kan volstaan.

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Risicobeoordeling waterverstrekking aan vleeskuikens en vleeskuikenouderdieren

Cited by 2 publications

References 87 publications

Welfare of broilers on farm

Welfare of broilers on farm

Development of the ‘animal welfare’ dimension within the Greenwell sustainability assessment model. 1.: Justification of the selection of indicators

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