The review has been a priority for NAWAC, so issues surrounding the use of confinement systems (such as farrowing crates and dry sow stalls) in pig production could be re-examined.
While the draft code does not immediately ban the use of crates and stalls, it does propose new limits for the amount of time they can be used post mating/farrowing and proposes to prohibit the use of sow stalls for all use after a date to be determined after the consultation process.
NAWAC Chairman Dr John Hellstrom says that although the use of these types of confinement systems is frequently opposed, the challenge in modern day pig production lies in finding viable alternative management systems for industry that improves animal welfare overall.
"Pigs in production systems are quick to establish dominance, which is maintained through aggression to win things like food, water and space. There can be severe injuries from fighting and you also end up with subordinate pigs lower down the social order may suffer from lack of access to food and water. The level of aggression in sows can be particularly severe in early pregnancy.
"The challenge is to manage pig aggression while giving them the opportunity to display more positive behaviour – being social, living in groups, and rooting and chewing for example."
Te review has re-affirmed NAWAC's belief that the use of dry sow stalls and farrowing crates should be eventually phased out, but only when other viable options are possible says Dr Hellstrom.
"Alternatives to current confinement systems must improve overall animal welfare. In the case of farrowing crates, no alternative that still provides protection for the piglets while allowing the sow more freedom to move around has yet been found anywhere in the world."
"In the case of dry sow stalls, the situation is less clear-cut. There is no strong scientific evidence for a preference to any other commercial production system, nor is there strong evidence for sow stalls to be preferred over others on welfare grounds. Because of this, NAWAC has taken consideration of societal expectations and analysis of economic impacts in proposing a future ban".
The draft code is available at http://www.biosecurity.govt.nz/biosec/consult and the closing date for submissions is 16 April 2010. Submissions on the accompanying draft economic analysis that informs the draft code are also sought. Anyone making submissions should do so by email to animalwelfare@maf.govt.nz or in writing to:
NAWAC Secretary
MAF Biosecurity New Zealand
PO Box 2526
Wellington 6140