Survey of the effectiveness of stunning procedures used in Spanish pig abattoirs

  title={Survey of the effectiveness of stunning procedures used in Spanish pig abattoirs},
  author={Antonio Velarde and Marina Gispert and Luigi Faucitano and Xavier Manteca and Alejandro Diestre},
  journal={Veterinary Record},
  pages={65 - 68}
Two pig abattoirs (A and B) equipped with an automated head-only and head-to-chest electrical stunning system, and two (C and D) equipped with a manual carbon dioxide stunning system, were evaluated to compare the effectiveness of stunning in a total of 10,454 pigs slaughtered under commercial conditions. In the abattoirs with the electrical stunning system, the percentage of animals that responded to a nose prick was significantly lower (P<0.05) in abattoir B, where a higher current intensity… 

Assessment of cattle and pig welfare at stunning in commercial abattoirs

This thesis aimed to develop and implement a standardised assessment for stun quality for use in commercial pig and cattle abattoirs to protect animal welfare. A stun quality protocol identified and

Assessing pig welfare at stunning in Swedish commercial abattoirs using CO 2 group-stun methods

Developing and implementing a standardised assessment for stun quality for use in commercial pig abattoirs can assure monitoring of animal welfare at slaughter, beneficial not only to the industry and relevant authorities but also the concerned consumer.

Application of the Welfare Quality® protocol at pig slaughterhouses

For the majority of measures, any differences between slaughterhouses were found to be attributable to the installation itself and the management of the slaughterhouse, such as generalised fear, slipping and falling or stunning effectiveness, as opposed to measures taken to assess transport conditions or farm origin,such as lameness or sick and dead animals.

CO(2) stunning may compromise swine welfare compared with electrical stunning.

The welfare of pigs during transport and slaughter.

The use of numerical scoring of handling and stunning can help maintain high standards because it will enable management to determine whether or not practices are improving or deteriorating.

Effect of current intensity and duration on the effectiveness of head-only electrical stunning in pigs under commercial conditions.

After head-only electrical stunning of pigs sequential animal-based measurements were carried out right after stunning as well as before and after bleeding in order to analyse how unconsciousness is

Animal Welfare and Meat Quality Assessment in Gas Stunning during Commercial Slaughter of Pigs Using Hypercapnic-Hypoxia (20% CO2 2% O2) Compared to Acute Hypercapnia (90% CO2 in Air)

The results suggest that both gases provoked aversion and discomfort, but these were lower in pigs stunned with the N2 mixture compared to high CO2, and on the other hand, the stun quality of the N1 mixture was poorer than highCO2 stunning, given that more animals regained consciousness before sticking with theN2 gas mixture.



Variations in electrical stunning tong placements and relative consequences in slaughter pigs.

Effect of a low voltage with a high frequency electrical stunning on unconsciousness in slaughter pigs

It was concluded that electrical head stunning using this high frequency combined with heart stunning with this lowfrequency is an effective method of stunning slaughter pigs.

An assessment of carbon dioxide stunning in pigs

The vocalisation patterns of pigs subjected to stunning in 86 per cent carbon dioxide in a commercial abattoir suggested that narcosis began 30 to 39 seconds after the start of the immersion procedure, which indicated that they were effectively stunned.

Evidence of Muscovy duck parvovirus in Muscovy ducklings in California

Muscovy duck parvovirus (MDPv) has been demonstrated in tissue samples from one- to four-week-old commercially reared Muscovy ducks that were weak, unable to walk and had a high mortality rate. On

Wefare implications of gas stunning pigs 1. Determination of aversion to the initial inhalation of carbon dioxide or argon

Deprivation of food for 24 h prior to testing did not overcome the pigs' reluctance to enter an atmosphere containing 90% carbon dioxide, and the inhalation of 90% dioxide was aversive to most pigs.

Transient neocortical, hippocampal and amygdaloid EEG silence induced by one minute inhalation of high concentration CO2 in swine.

  • A. Forslid
  • Biology
    Acta physiologica Scandinavica
  • 1987
The observed changes in the neocortical and hippocampal EEGs suggest that the present swine were unconscious already when they exhibited motor reactions, and does not exclude the possibility that CO2-independent stress/arousal factors present in a slaughterhouse environment may facilitate the development of motor phenomena similar to seizures.

Survey of stunning and handling in Federally inspected beef, veal, pork and sheep slaughter plants

  • 1997

Return to consciousness in slaughter pigs stunned with CO 2

  • 1997