Boar Taint And The Castration Debate | The Pig Site

The debate

Consumer perception

The main concerns driving the case for ending surgical castration are a consideration for the pigs’ welfare – and consumers’ perception of how castration affects this — and the fact that boar taint can affect the taste and smell of meat. However, as an impairment to the product, boar taint is also subjective: androstenone can be detected by 90 percent of women but only 50 percent of men, which means many people’s taste preference is not impacted by boar taint. Some studies suggest that what you read is what you smell – meaning that product information can affect consumers’ quality perception (Wageningen University, 2013). In the same study, it was revealed that if they are not informed about boar taint, consumers’ views about the acceptance of castration vary widely. This prompts the question: for those consumers who are not informed about boar taint, and are unable to detect it, does its presence make any difference to how they experience the product?

Who in the pork chain cares?

Similarly, is boar taint of equal concern to all the stakeholders in the pork chain? From a farmer’s point of view, rearing entire males might be a better prospect, as they reduce feed costs due to faster growth, they convert feed more efficiently and they produce leaner carcasses compared to castrates (Lundström et al., 2009; Zamaratskaia and Squires, 2009). This approach to farming would also probably please environmentalists who see less nitrogen in manure from entire males compared to castrated males.

But, on the other hand, boars can show more aggressive behaviour compared to castrated pigs which are easier to manage, especially during transport and lairage (ALCASDE, 2009) and usually results in fewer meat quality defects such as PSE or DFD.

Pig welfare and castration

It is well known that castration negatively affects the welfare status of the animals and society’s growing concern for animal is making a strong case for ending castration. But, looking at it closely, it seems that the perception that castration is a bad thing overall is predominantly driven by the lack of pain relief used when conducting castration procedures on many farms. As a result, as of 2019 Germany will no longer allow castration without anaesthesia (Eurogroup for Animals, 2018). Additionally, if the pigs are not given both anaesthesia and analgesia for castration, it is unlikely that their welfare will be substantially improved. On the other hand (using Germany as an example), this decision will also affect imports to the country – negatively affecting other sectors in the pork chain.

By banning castration, the industry would be removing one source of pain and distress that piglets are subjected to whilst also eliminating one of the methods by which disease can get into young pigs. But keeping males intact and growing them to heavier weights at puberty also invites more aggressive behaviour towards each other, resulting in stress that might also jeopardise their welfare.