Effect of transport length and genotype on tonic immobility, blood parameters and carcass contamination of free-range reared chickens

Mancinelli, Alice Cartoni; Mugnai, Cecilia; Castellini, Cesare; Mattioli, Simona; Moscati, Livia; Piottoli, Luca; Amato, Monica Guarino; Doretti, Marco; Bosco, Alessandro Dal; Cordovani, Elisa; Abbate, Ylenia; Ranucci, David

doi:10.1080/1828051x.2018.1423583

Cited by 11 publications

(12 citation statements)

References 40 publications

(40 reference statements)

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“…These findings are in line with those of Luton et al (2019), who reported poorer conditions of bulky broilers than those of a lighter weight strain. Shorter TI in RSG chickens is in line with findings of Mancinelli et al (2018), who reported shorter TI duration in Naked neck chickens than commercial fast-growing Ross broilers. Rural chickens are usually reared in free-range systems, have slower growth rate, and undergo harsh conditions during walking on abrasive ground.…”

Section: Resultssupporting

confidence: 88%

Behaviour, welfare, and tibia traits of fast- and slow-growing chickens reared in intensive and free range systems

Ghayas¹,

Hussain²,

Mahmud³

et al. 2021

SA J. An. Sci.

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The behaviour, welfare, and tibia characteristics of fast- and slow-growing chickens were evaluated in free-range and intensive production systems. A total of 720 birds of three strains were subjected to these systems after 21 days of rearing under the same intensive environment. Each treatment was replicated six times with 20 birds in each replicate. Data were collected for welfare aspects, including feather condition, footpad, hock joint and tonic immobility, behavioural features, especially feeding or foraging, sitting, walking, scratching, pecking and dust-bathing, and tibia characteristics, including weight, length, width, medullary canal diameter and robusticity index (4 - 8 weeks). Production system had significant effects on all welfare and behaviour aspects of the birds. However, tibia characteristics were not influenced by production system, except for medullary canal diameter. The strains differed significantly in welfare, tibia characteristics and behaviour. For example, the slow-growing strains had better feather condition, footpad and hock joint scores. Significant interactions of strain and production system were noted for all characteristics. It was recommended that Rhode Island Red chickens could be raised under either production system without compromising their welfare or causing adverse effects on leg health.

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Section: Resultssupporting

confidence: 88%

Behaviour, welfare, and tibia traits of fast- and slow-growing chickens reared in intensive and free range systems

Ghayas¹,

Hussain²,

Mahmud³

et al. 2021

SA J. An. Sci.

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show abstract

“…Some of our papers indicated [ 45 , 46 ] that the SG strains adopted in ERS could have a different response to the slaughtering process and thus different meat products would result. In this view, two other studies analyzed the effect of transport on welfare traits, several haematological parameters, in vivo oxidative status, carcase hygiene, and breast meat characteristics in two different chicken genotypes (FG and SG strains) reared under free-range conditions.…”

Section: Logisticalmentioning

confidence: 99%

Extensive Rearing Systems in Poultry Production: The Right Chicken for the Right Farming System. A Review of Twenty Years of Scientific Research in Perugia University, Italy

Bosco

Mattioli

Mancinelli

et al. 2021

Animals

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The demand for poultry meat, being cheaper than red meat, will drive worldwide production of this product. Accordingly, an increase in production up to 16% is expected in 2025, most of which will occur in developing countries. Most poultry meat production is realized with intensive production systems, and extensive rearing systems (ERS) of poultry (organic, free-range, and low-input) represent only a small portion of poultry production in the EU (about 5%). However, there is an increasing interest in such rearing systems to maintain the good image of product and environmental sustainability, improved animal welfare, and meat quality with an annual trend of growth of about 10%. The aims of this work were to summarize the activities and the viewpoint of the researchers of the Department of Agricultural, Food, and Environmental Science of the University of Perugia (Italy). One of the most important goals of the research unit was the challenge of identifying the best poultry genotypes for ERS, which are important not only for the food industry but also for the improvement of human nutrition. Only the definition of the best genotypes adapted to ERS through the measurement of a wide panel of traits—genetic, physiologic, and behavior—and not only relying on daily weight gain will allow us to achieve this goal.

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“…The same consideration was not so for Salmonella spp., as different authors reported no shedding animals and no positive carcasses in PPP systems and MPPUs, respectively [47,62].…”

Section: Qualitative and Sanitary Implicationsmentioning

confidence: 99%

“…Our previous results [47] suggest that a 4-h journey to the slaughterhouse, compared to immediate slaughter in a MPPU, negatively affects some animal welfare traits (tonic immobility, creatine kinase, heterophil/lymphocyte ratio, lysozymes, reactive oxygen species, glucose and haptoglobin) in free-range chickens. The slow-growing chickens showed the highest susceptibility to stress, even with a greater antioxidant defence due to their foraging behaviour.…”

Section: Animal Welfare Aspectsmentioning

confidence: 99%

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Mobile Poultry Processing Unit as a Resource for Small Poultry Farms: Planning and Economic Efficiency, Animal Welfare, Meat Quality and Sanitary Implications

Mancinelli

Bosco

Mattioli

et al. 2018

Animals

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Simple SummaryPoultry meat production is now based on fast-growing strains, with consequences for animal health and welfare. There is also an increasing demand for products from extensive rearing systems; there are, however, several criticisms including the difficulty of slaughtering chickens from a logistic, legislative and economic point of view. A possible solution could be represented by the use a Mobile Poultry Processing Unit (MPPU), which directly reaches the poultry farms. The aim of this review is to analyse the requisites and economic efficiency of a MPPU prototype in Italy; further, the related animal welfare aspects and the qualitative and sanitary implications are discussed.AbstractNowadays there is an increasing demand for poultry products from alternative rearing systems. These systems, commonly named pastured poultry production (PPP), are more expensive than intensive rearing system but sustain biodiversity, local economies and farm multi-functionality besides providing meat to which consumers attribute high ethical value and quality. PPP generally uses large outdoor runs, small number of animals and requires chickens adapted to natural environment. One of the most relevant obstacles to further development of PPP systems is related to the slaughtering of animals economically and at the same time complying with the sanitary regulations to maintain food safety standards. A possible solution could be represented by a Mobile Poultry Processing Unit (MPPU), which directly reaches the poultry farms. MPPU can consider a good compromise for the niche production providing an opportunity to small farmers to exploit the full potential of their production system. The aim of this review is to analyse the essential requisites and MPPU economic viability in an Italian system. Qualitative, societal aspects are discussed together with bird welfare and hygiene implications. The case study indicates the viability of MPPUs but notes that up scaling to medium sized operations would not be permissible under current EU regulations.

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Effect of transport length and genotype on tonic immobility, blood parameters and carcass contamination of free-range reared chickens

Cited by 11 publications

References 40 publications

Behaviour, welfare, and tibia traits of fast- and slow-growing chickens reared in intensive and free range systems

Behaviour, welfare, and tibia traits of fast- and slow-growing chickens reared in intensive and free range systems

Extensive Rearing Systems in Poultry Production: The Right Chicken for the Right Farming System. A Review of Twenty Years of Scientific Research in Perugia University, Italy

Mobile Poultry Processing Unit as a Resource for Small Poultry Farms: Planning and Economic Efficiency, Animal Welfare, Meat Quality and Sanitary Implications

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