Causes of trauma in broilers arriving dead at poultry processing plants

Ng, Guseva; Austin, SD

doi:10.1136/vr.131.22.501

Cited by 45 publications

(24 citation statements)

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“…The mean DOA percentage of hens and roosters found in our study was 0.925%. This figure is higher than values reported by Gregory and Austin (1992), Nijdam et al (2004) and Vecerek et al (2006a) for broilers, Voslarova et al (2006) for turkeys and Vecerek et al (2006b) for pigs. The DOA of hens and roosters is an important value that demonstrates deficiencies in hen and rooster welfare during their transport to poultry processing plants.…”

Section: Discussioncontrasting

confidence: 55%

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Effects of transport distance and the season of the year on death rates among hens and roosters in transport to poultry processing plants in the Czech Republic in the period from 1997 to 2004

Voslářová¹,

Janáčková²,

Vitula³

et al. 2007

Vet. Med. - Czech

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ABSTRACT:Poor welfare is the cause of high mortality among hens and roosters transported to poultry processing plants. In the Czech Republic, death rates among hens and roosters in transport to poultry slaughter plants were monitored between 1997 and 2004, and their total mortality rate was in the 0.925% ± 0.479% range. Death rates among hens and roosters were influenced by the transport distance to poultry processing plants. The percentage of dead birds increased from 0.592% ± 0.575% at transport distances up to 50 km to 1.638% ± 0.952% at transport distances up to 300 km. The bird mortality was also influenced by the season of the year. Higher mortality rates were ascertained during the cold months of the year, specifically in October through to April.

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Section: Discussioncontrasting

confidence: 55%

“…They reported the mean percentage of birds dead on arrival (DOA) to processing plants at 0.46. Causes of trauma in broilers arriving dead at poultry processing plants were also investigated by Gregory and Austin (1992). They found 0.19% of birds dead on arrival to processing plants.…”

mentioning

confidence: 99%

Effects of transport distance and the season of the year on death rates among hens and roosters in transport to poultry processing plants in the Czech Republic in the period from 1997 to 2004

Voslářová¹,

Janáčková²,

Vitula³

et al. 2007

Vet. Med. - Czech

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“…Traumas resulting from improper handling were described by Weeks and Nicol (2000) who reported up to 23% of laying hens with broken limbs after they were unloaded from the transport crate. Gregory and Austin (1992) found that trauma was the cause of death of 35% of broilers dead on arrival to the six processing facilities they were monitoring. Monitoring broilers during live haul, observed that injuries inflicted to the birds during loading and handling were the primary cause of their death on arrival at the slaughterhouse.…”

Section: Discussionmentioning

confidence: 99%

Transport-induced mortality in Pekin ducks transported for slaughter in the Czech Republic

et al. 2016

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Data on the numbers of Pekin ducks transported to slaughterhouses between 2009 and 2014 and the numbers of ducks that died during these transports were recorded in cooperation with the State Veterinary Administration of the Czech Republic. In the monitored period, a total of 12,327,017 ducks were transported, of which 9,545 (0.077%) died. The levels of transport-related mortality over these years varied significantly (P < 0.001); the lowest mortality was observed in 2011 (0.059%) and the highest in 2013 (0.089%). The impact of distance on transport-related mortality in ducks was demonstrated. The lowest transport-related mortality (0.052%) was found for distances shorter than 50 km. It was significantly (P < 0.001) lower than the mortality rates connected with longer journeys. The greatest mortality rates were found for transport distances of 101-200 km (0.105%). In addition, the season of the year significantly affected transport-related mortality in Pekin ducks. The highest death losses were found in the summer (0.090%). Death losses of ducks connected with summer transports were significantly higher (P < 0.001) in comparison with transport-related mortality rates in any other season of the year. The lowest death losses were found in duck transports carried out in the autumn and winter (0.069% and 0.072%, respectively) with no significant difference between those two seasons. Shortening transport distances and maintaining a suitable micro-climate inside transport vehicles especially in the summer are thus two important factors that can contribute to reducing transportrelated mortality in Pekin ducks in commercial practice.

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“…This may be explained by the application of 120 mA electrical current, which can cause the rupture of intramuscular blood vessels and blood retention in muscle tissue (Gregory & Austin, 1992;Lambooij et. al., 1999).…”

Section: Exposure To Carbonic Gas Enriched Atmosphere or Electrical Wmentioning

confidence: 99%

Exposure to Carbonic Gas Enriched Atmosphere or Electrical Water Bath to Stun or Kill Chickens

Nicolau

Pinto

Ponsano

et al. 2015

Rev. Bras. Cienc. Avic.

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The objective of this study was to compare the effects of two methods (electrical water bath or carbonic gas atmosphere) for stunning or killing broiler chickens prior to bleeding on weight loss due to bleeding and meat traits. A completely randomized design with 2 x 2 factorial arrangement (electrical or gas system x stunning or killing) was applied. The time required for stunning and killing and the birds' behavior were evaluated for the gas exposure method. The birds killed by the electrical method retained more blood than those killed by the exposure to gas and, therefore, presented redder meat. The exposure to 10 to 15% CO 2 atmosphere caused discomfort reactions in 100% of birds, and the intensity of reaction presented a wide variation: 35% for weak reaction, 40% for intermediate reaction, and 25% for strong reaction. The time required to stun or kill the birds by CO 2 exposure varied from 28 to 97 seconds and from 42 to 158 seconds, respectively. It was concluded that the time required to stun or to kill the birds by CO 2 exposure widely varied and caused discomfort reactions; however, meat traits were not influenced by the methods used in this experiment.

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Causes of trauma in broilers arriving dead at poultry processing plants

Cited by 45 publications

References 0 publications

Effects of transport distance and the season of the year on death rates among hens and roosters in transport to poultry processing plants in the Czech Republic in the period from 1997 to 2004

Effects of transport distance and the season of the year on death rates among hens and roosters in transport to poultry processing plants in the Czech Republic in the period from 1997 to 2004

Transport-induced mortality in Pekin ducks transported for slaughter in the Czech Republic

Exposure to Carbonic Gas Enriched Atmosphere or Electrical Water Bath to Stun or Kill Chickens

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