Tag Archives: Sweden

Soundbites Pig Welfare Conference: 5. Interviews with legislators

On 29 – 30 April 2015 Danish Minister for Food, Agriculture and Fisheries, Dan Jørgensen hosted an international conference “Improving Pig Welfare – what are the ways forward?“.

During the two-day conference, top academics, experts and political stakeholders from around the world debated and worked to prepare the way forward in improving pig welfare in Europe and ultimately in the world.

Below are ‘soundbites’ from video-interviews with legislators attending the conference, all more or less related to the subjects of study in the FareWellDock project.

A pig is an intelligent animal. It is a sentient being. Therefore, it needs to be treated with respect (Dan Jørgensen, Danish Minister for Food, Agriculture and Fisheries)

Finding solutions in how we can produce pigs in a competive manner, but at the same time improve the animal welfare, is an extremely important task (D. Jørgensen)

Ministers Dijksma (NL) and Jørgensen (DK)
To the left: Sharon Dijksma, Minister for Agriculture, NL. To the right: Dan Jørgensen, Minister for Food, Agriculture and Fisheries, DK

Sharon Dijksma, Minister for Agriculture, The Netherlands – “Towards Sustainable Pig Farming – The Dutch Way

Dutch pigs are top quality animals: they are healthy, fertile and, if I may say so, good to eat (S. Dijksma)

Pig welfare is playing a growing role in where the Dutch pig industry is at present (S. Dijksma).

The Dutch care deeply about animal welfare. Animals have intrinsic value, i.e. value in itself, independent of people (S. Dijksma).

We are happy other countries share our conviction. Together we will be more succesful convincing the agricultural sector worldwide to put the welfare of animals first (S. Dijksma).

We must respect the animals’ physical integrity. … Physical integrity also means letting pigs keep their tails (S. Dijksma).

I call on the sector to make every effort to prevent tail biting as much as possible…. My aim is a complete ban on tail docking (S. Dijksma).

Animal welfare also means animals must be able to exhibit their natural behaviour. Pigs investigate their environment by rooting and biting. (S. Dijksma)

When we eat meat it is good to know that the animals from which our meat derives have had a pleasant life (S. Dijksma)

I’m convinced that nothing beats the taste of pork chops of a pig that really lived well (S. Dijksma)

It is wrong to put farmers in the bank of the accused ones (Christian Schmidt, Federal Minister of Food and Agriculture, Germany – “Minding Animals – Ways to Improve Animal Welfare“)

Sven-Erik Bucht, Minister for Rural Affairs, Sweden – “High Animal Welfare – A Winning Concept for Future Pig Production

We are what we eat (S.-E. Bucht)

[In EU pig production] We must focus on quality, and quality means animal welfare (S.-E. Bucht)

Good animal welfare is not about the health and well-being of our pigs. It is also about our own health, and of our children, and of our grandchildren (S.-E. Bucht)

About truely good food, we all have a lot to learn (S.-E. Bucht)

More and more the European consumer calls for animal-friendly products (Denis Simonin, Policy officer on animal welfare at European Commission)

The EU strategy for the protection and welfare of animals (2012-2015) was focused on the enforcement of the EU rules (D. Simonin)

Almost 2/3 of member states are fully compliant with welfare regulations on group housing of sows
(D. Simonin)

[In the European Commission] Work is still ongoing on the development of guidelines aiming to achieve better implementation of the use of manipulable materials (D. Simonin)

EU reference centers for animal welfare to support the enforcement of animal welfare standards
(D. Simonin)

Problems with the treatment of pigs are among the most important problems to be improved as regards animal welfare (Janusz Wojciechowski, MEP and Vice-chairman in the Committee on Agriculture and Rural Development)

Pigs are very intelligent and very sensitive (J. Wojciechowski)

Esp. European pig farming is increasingly industrialised. Thousands of pigs in one place is not good for animal welfare standards (J. Wojciechowski)

Straw reduces piglet mortality at farrowing related to starvation and stillbirth

This post presents the highlights and abstract of a paper by Westin et al.:

Westin, R., Holmgren, N., Hultgren, J., Ortman, K., Linder, K., Algers, B. In press. Post-mortem findings and piglet mortality in relation to strategic use of straw at farrowing. Prev. Vet. Med.

Highlights

• Post-mortem examination was performed in 798 piglets from 363 litters.
• The major post-mortem findings were starvation (34%) and crushing (28%).
• Fewer piglets starved to death in STRAW compared to CONTROL-litters.
• Strategic use of straw reduced the number of stillborn piglets by 27%.

Abstract

Piglet survival is the outcome of complex interactions between the sow, the piglet and
their environment. In order to facilitate nest-building and to provide a suitable environment  for the newborn piglets, a strategic method to supply loose housed sows with large  quantities of straw at farrowing has been developed by Swedish piglet-producing farmers.  The objectives of this cohort study were to use post-mortem findings to assess the causes of death and to quantify the effect of a large quantity of straw provided before farrowing compared to limited small daily amounts on stillbirths, post-mortem findings in piglets dying within 5 days after birth and the pre-weaning mortality. On each of four commercial piglet-producing farms in South-West Sweden, one batch of sows was studied during two consecutive lactations. At inclusion, sows were randomly assigned to two treatment groups, and sows remaining in the batch during the next lactation switched treatment group. In the STRAW group (n = 181 litters) sows were provided with 15–20 kg of chopped straw 2 days prior to the calculated date of farrowing. Sows in the CONTROL group (n = 182 litters) received 0.5–1 kg of chopped straw on a daily basis plus about 2 kg for nest-building when the stockperson judged the sow to be about to farrow. After onset of farrowing, additionally 1–2 kg was given. Post-mortem examination was performed in all piglets that died within 5 days after birth (n = 798). The three major post-mortem findings were starvation (34%) crushing by the sow (28%), and enteritis (24%). In conclusion, strategic use of large quantities of straw reduced the number of stillborn piglets per litter by 27% (p = 0.007). Under the conditions studied, the pre-weaning mortality of liveborn piglets was not affected by treatment; however, the distribution of post-mortem findings differed with fewer piglets dying due to starvation and more due to crushing and enteritis in STRAW litters.

Newborn piglet
Newborn piglet (Photo by Rebecka Westin)

Straw promotes nestbuilding and facilitates farrowing

This post presents the highlights and abstract of a recent paper by Westin et al.:

Westin, R., Hultgren, J. Algers, B. In press. Strategic use of straw increases nest building in loose housedfarrowing sows. Appl. Anim. Behav. Sci.

Highlights

• Nest building behaviour and farrowing duration were studied in 138 sows.
• A large quantity (15–20 kg) of straw given once was compared to small daily amounts.
• Time spent nest building during 18 h pre-partum was increased by 19%.
• A 1-h increase in time spent nest building reduced the farrowing duration by 12%.

Abstract

In spite of domestication, sows are still genetically programmed to perform nestingbehaviour close to farrowing. In order to facilitate nest building, a method for a strategic useof large quantities of straw has been developed by Swedish piglet producing farmers. Theobjectives of the present study were to quantify the effect of strategic use of 15–20 kgof chopped straw given once 2 days prior to expected date of farrowing, compared tosmall daily amounts (0.5–1 kg) and 2 kg close to farrowing (controls), on the nest buildingbehaviour and the duration of farrowing. The behaviour from 18 h pre-partum until 1 h afterbirth of first piglet and the duration of farrowing was continuously observed in 138 videorecordings from 4 commercial farms. On each farm, 20–34 sows (parity ≥ 2) were stud-ied during one or two consecutive lactations. Compared to controls, strategic use of strawtriggered the sows to start nest building earlier and increased the total time spent nestbuilding pre-partum by 19% (p = 0.039). Sows given large amounts of straw also performedless nesting behaviours during the first hour after birth of the first piglet. This shows thatnest building is affected not only by the presence of straw, but also by the quantity of strawprovided, and that 2 kg of chopped straw seems to be too little to make the sow terminatenest building well in advance of farrowing. There was no significant effect of treatment onthe duration of farrowing but a strong negative association was found between time spentnest building pre-partum and the duration of farrowing regardless of treatment. The modelpredicted a 1-h increase in total nest building time pre-partum to be associated with a 12%(95% CI = 4–19%) shorter duration of farrowing (p = 0.004).

Nestbuilding sows
Nestbuilding sow (Photo by Rebecka Westin)
Farrowing sow and piglets on straw (Photo by Rebecka Westin)
Farrowing sow and piglets on straw (Photo by Rebecka Westin)

Throughput capacity of straw on slatted floors

Providing straw is a well-known obstacle for use on slatted floors because as the straw may rapidly get out of reach of the pigs by falling through the slats and because the straw may block the liquid manure handling system. Research in Sweden investigates the throughput capacity of straw for nestbuilding in farrowing sows and for reducing tail biting in weaned and growing-fattening pigs.

Nest-building behaviour is regarded as a behavioural need for the pre-partum sow and sows in modern pig husbandry are highly motivated to perform this behaviour. A sow that lacks possibilities to perform foraging and nest-building behaviour at farrowing will be frustrated and stressed, which can result in reduced piglet survival or savaging of piglets. Thus, sows should be provided with appropriate substrate to perform nest-building behaviour at farrowing.
Furthermore, many newborn piglets in modern pig production develop lameness and poor claw health due to poor floor quality. Lame piglets often need medical treatment and have a reduced growth rate. The claws of newborn piglets have an extremely soft horn tissue making them vulnerable to bruising in early life. However, a few days after birth, the horn tissue becomes harder and more resistant to injury. Provision of straw as bedding only during the first week of life might therefore be sufficient to reduce the incidence of lesions. Straw bedding is also a source of thermal insulation, found to be suitable for the prevention of prolonged hypothermia in newborn pigs. Piglets with a low body temperature are more likely to die from infections or crushing. Provision of straw to newborn piglets may increase their welfare by decreasing the risk of lameness and/or hypothermia.
In a Swedish study a strategic usage of straw was investigate in two commercial piglet producing farms. The ability of straw to drain through slatted flooring was studied giving the sows 15 kg of chopped straw around the time of farrowing. In total 96 sows were studied and all sows were loose housed in partly slatted farrowing pens (plastic or cast-iron slats). Chopped wheat straw of three different lengths was compared. The mass median straw lengths were 39, 70 and 130 mm, respectively. It was found that by Day 4 after farrowing straw with short and medium chop length was completely absent in 83% (plastic slats) and 85% (cast-iron slats) of the pens. However, at Day 4 straw was absent in only 6-7% of the pens provided with the longest straw category.
The conclusion from the study is that it is technically feasible to maintain good pen hygiene in partly slatted farrowing pens, even if the sows are provided with 15 kg of chopped straw at farrowing. However, straw chop lengths need to be adjusted to the type of slatted flooring used.

Farrowing sow in straw nest (Photo by Rebecka Westin)
Farrowing sow in straw nest (Photo by Rebecka Westin)

When these results are applied to the objective of using straw as enrichment for growing pigs and to counteract tail biting, the paper shows that it is possible to use straw cleverly and adapt the straw structure to the slatted floor. Optimal is that we give the pigs straw of a structure that enhances their litter related behaviours, but at the same time remains manageable for the farmer and the manure system. This study shows that chopped wheat straw of mass median lengths between 39 and 70 mm can be managed in a slatted system. The paper also evokes the thought that the amount of straw could be varied according to the behavioral needs of the growing pigs, e.g. more straw could be provided to the pigs when they are put into to a new compartment after weaning. Ideally, it could also be possible to develop a monitoring system of early warning of impending tail-biting outbreaks and then increase the amount of straw given to the pigs to counteract (and hence prevent) the outbreak. This could be partly automatic (precision livestock farming).

Farrowing sow and piglets on straw (Photo of Rebecka Westin)
Farrowing sow and piglets on straw (Photo of Rebecka Westin)

Some further questions
* To what extent was the straw remaining available to the pigs, e.g. what % is lost through the slats and for how long is it visible in the pen?
The straw (15 kg) was given 2 days prior to expected farrowing and the remains were scored 6 days later (i.e. four days after farrowing). Plastic slats dimensions were: slat width 15 mm, opening width 10 mm, opening length 36 and 84 mm. Cast iron slats: slat width 11mm, opening width 11 mm and opening length 200 mm.
In plastic-slatted pens (i.e. on Farm A), bedding was completely absent (0 kg) on Day 4 in 25 of 30 pens (83%) when provided with straw of short or medium chop lengths compared to 1 of 15 pens (7%) provided with long straw. Similar figures were seen on Farm B which had cast-iron slatted pens, where bedding was absent in 22 of 26 short/medium straw pens (85%) and 1 of 17 long straw pens (6%), respectively. On Day 4 after farrowing, 37 of 43 cast-iron pens (86%) were completely dry and clean on the solid floor. This was the same for the plastic-slatted pens provided with bedding of short or medium straw. However, in plastic-slatted pens provided with bedding of long straw, hygiene became worse over time.

* To what extent did the manure system get blocked, both in the short term and long term?
It was never blocked as the sow and the piglets were degrading the straw over time. In this case 15 kg was given once to the sows for the 6 days. After that, from Day 4 after farrowing and onwards, a small amount of chopped straw (~0.5 kg) was given daily according to the farms’ regular management practice. Weaning was performed after 5 weeks. For the total suckling period it was ~35 kg of straw used.

* What remains to be done in the FareWellDock project?
We will investigate the straw amount and the length that could be used to find an optimum level for usage in semi-slatted pens for growing-fattening pigs. The optimum is where enough straw is provided to minimise the risk of tail and ear biting, while pen hygiene and manure system continue to function at acceptable levels to the farmer. We will start with a survey in Sweden to investigate this further.

Background paper: R. Westin , N. Holmgren , B. Mattsson and B. Algers, 2013. Throughput capacity of large quantities of chopped straw in partly slatted farrowing pens for loose housed sows, Acta Agriculturae Scandinavica, Section A – Animal Science

Sow and piglets on straw
Sow and piglets on straw

See also:
Westin, R., Holmgren, N., Hultgren, J. and B. Algers, 2014. Large quantities of straw at farrowing prevents bruising and increases weight gain in piglets. Preventive Veterinary Medicine 115: 181-190. doi: http://dx.doi.org/10.1016/j.prevetmed.2014.04.004.
Westin, R. 2014. Strategic Use of Straw at Farrowing – Effects on Behaviour, Health and Production in Sows and Piglets. PhD thesis, SLU, Skara.

Highlights
•Strategic use of large quantities of straw effectively prevents piglets from developing skin abrasions and claw lesions.
•The overall prevalence of skin and claw lesions was reduced by at least 50% in STRAW compared to CONTROL piglets.
•Average daily weight gain until 5 days of age increased by 25 g in the STRAW treatment.
•Mean body weight at weaning increased by 0.33 kg

Media coverage

 

Coverage of the project startup:

FI: Telkanranta, H. (in prep. 2014). Uusi EU-tutkimushanke tähtää tulevaisuuteen ilman hännäntypistystä (New EU-project aims at a future without tail docking). KMVET

DK: New EU project to reduce tail biting, docking in pigst (Feedstuffs, the weekly newspaper for agribusiness (Dec 2013)

DK: New EU project to reduce tail biting, docking (Pig Progress, Dec 4, 2013)

NL: Waninge (In prep.) Prikkelvoer – Opvoeding biggen leidt tot minder staartbijten (Stimulation feed – Rearing of piglets reduces tail biting). Varkens (Interview with Prof. Valros).
Op weg naar coupeervrij Europa (Towards a docking-free Europe) (Varkens, Dec 5, 2013)

SE: Dr. Stefan Gunnarsson of SLU was interviewed about the FareWellDock project on Sveriges radio (17-7-13, in Swedish).

UK: See the post on the UK’s media coverage to the press release issued by SRUC.