Organic livestock production systems and appropriate development in relation to public expectations

There has been a tremendous growth in numbers of organic farms in EU over the latest years – from below 20,000 farms in year 1992 to more than 120,000 farms in 1999 (Padel, 2001). Worldwide-certified organic production takes place in 130 countries, half of which are developing countries (ITC, 1999). The market share in EU, however, on total is still quite low ranging from less than 0.5% in nine out of 18 countries some countries to 5-9% in other countries for some major product groups (Michelsen et al., 1999). Livestock production and especially ruminant livestock production forms an integral part of many organic farms due to its role in nutrient recycling on farms. Out of 16 European countries, livestock products were within the top five organic products in 14 countries (Michelsen et al., 1999). The market share of livestock products, however, is very different from product to product. In Austria, Denmark, Switzerland and Finland milk products are the most important organic products. Pork and poultry only play a minor role whereas eggs in some countries are quite important. The recent development of organic farming in Europe is not only a matter of (marginal) agricultural change (Michelsen, 2001). It also represents an implantation of important aspects of recent major changes in society at large into agriculture. Essential vehicles in the development of the concept of organic farming are values expressing a general criticism of mainstream European agriculture and more general doubts about the interplay between man and nature as reflected in modern technology. In society at large these doubts have manifested themselves in growing political and public concern for the environment, increasing doubt regarding the importance of science in solving social problems, and increasing doubts about how society should be governed. The actual development can be attributed to an increased consumer interest in organic products throughout Europe while, at the same time, farmers are interested in converting to organic production methods – often stimulated by governmental support or subsidies. The main actors mentioned, however, do not necessarily have the same expectation to organic farming and the future development in organic farming in general as well as the individual livestock systems in particular may depend on to what degrees common expectations can be fulfilled. The aim of this paper is to highlight some expectations from main actors and to discuss the importance of this for the appropriate development of different livestock systems

Integration of organic pig production into land use

The development in organic livestock production can be attributed to an increased consumer interest in organic products while, at the same time, farmers are interested in converting to organic production methods – often stimulated by governmental support or subsidies. It is important that the organic production systems can fulfil the expectations of each of these stakeholders if the organic livestock production is to increase further. This is in particular important if the organic pig production should move from the present niche-production to a real player in the food marked, like in the case of beef and milk. In the regulations for organic farming, the aspect of allowing a high degree of natural behaviour of the livestock is among others translated in the requirement that livestock in certain periods of their life or of the year should be allowed to graze or have access to another outdoor area. The most common outdoor systems for pig used in intensively managed organic production have some important drawbacks in relation to environmental impact (risk of N-leaching and ammonia volatilisation), animal welfare (nose-ringed sows) and workload and management constraints. With the starting point in the present experience in such systems, it is argued that there is a need for a radical development of the systems. There is a need to search for systems where the outdoor/free range systems (for the sake of the livestock) are constructed and managed in a way whereby the livestock at the same time exert a positive influence on other parts of the farming systems. There is evidence that pregnant sows can fulfil their nutritional needs to a large extent by grazing, that co-grazing sows with heifers can diminish the parasite burden of the heifers, and that the pigs’ inclination for rooting can be managed in a way that makes ploughing and other heavy land cultivation more or less superfluous. These elements need to be further explored as a basis for future system development

Organic poultry farming

The development in organic livestock production can be attributed to an increased consumer inter-est in organic products while, at the same time, farmers are interested in converting to organic pro-duction methods – often stimulated by governmental support or subsidies. It is important that the organic production systems can fulfil the expectations of each of these stakeholders if the organic livestock production is to increase further. This is in particular important if the organic poultry pro-duction should move from the present niche-production to a real player in the food marked, like in the case of beef and milk. It can be argued that the limited organic poultry production is related to the fact that it is far more difficult for the farmers to change the existing production systems for poultry compared to produc-tion systems for cattle and other ruminants in a way that gives a harmonious balance between the different aims of organic farming. In the existing systems for layers with flock sizes of 3,000 hens and where the hens have access to an outdoor area, the egg production and the feed conversion can be close to production results in conventional production. However, often a considerable mortality can be seen in organic egg production in part due to cannibalism and often also very high nutrient loads are observed in parts of the outdoor area. These conditions are important drawbacks in exist-ing systems. In order to improve the situation there is a need to look at the genotype of hens, to consider new management procedures, and – not at least – to consider new systems where the poultry to a higher degree are integrated in the land use. Promising results with integration of chickens, ducks and geese into an orchard production is found. Also preliminary results of housing systems for small flocks of layers are presented

Integrated forage and livestock production

Integrated forage and livestock production can be considered at the farm level and at the herd or animal level. At the farm level it is relevant to consider the overall utilization of N in the system in relation to crops and livestock. It is demonstrated that in organic dairy production a high transformation efficiency of N from input to edible products can be achieved compared, with conventional production. In addition, combining dairy and pig production allows an even higher N utilization. At the herd level the quality of grass or clover-grass based forage is extremely important. This holds for the overall intake and milk production in dairy cows and for the intake of clover-grass by grazing sows. In addition the composition of the sward should be considered in relation to the influence of specific plant species on the development of endoparasitic infections in ruminants and on the wear strength in relation to free-range pig production. For dairy production it is proposed that a strategy including only 20% concentrates (or cereals) of the dry matter in a total diet based on clover-grass and clover-grass silage represenst an efficient milk production without impairing the health of the cows

Performance and carcass quality of fully on partly outdoor reared pigs in organic production

Outdoor rearing of finishers can be considered a relevant option in organic pig production. The performance and carcass characteristics of 245 organically produced and free-range born crossbred pigs allocated to five treatments were compared. The five treatments were: transfer to a barn with free access to feed (1) at weaning and until slaughter, (2) at a live weight of 40 kg and until slaughter, (3) at live weight of 80 kg and until slaughter, or reared at pasture (4) with free or (5) limited access to concentrates until slaughter. Pigs fed ad libitum fed indoor compared to pigs fed ad libitum outdoor had a significant lower feed consumption (5 MJ ME /kg gain), lower lean percentage (2.3%), and a higher backfat depth (1.1 mm)(all P < 0.05). Compared with outdoor pigs fed ad libitum, restricted feeding outdoor resulted in a significantly lower daily gain (107 g), a lower feed consumption (6.3 MJ ME/kg gain), higher lean percentage (2.1% units), and a reduced backfat (1.8 mm) (all P < .001). Pigs, which at a live weight of 40 kg, were transferred to indoor facilities with free access to feed compensated almost completely before slaughter, while pigs transferred at 80 kg live weight only compensated little. Although the housing environment (in- or outdoor) seems to affect performance and carcass traits, the length of energy restriction appears to be of greater importance

Organic pig production – With particular reference to Danish production conditions

While there is a markedly growth in organically farmed land and in the organic food sector as such in Europe and North America, the organic pig sector has not developed correspondingly in most countries. This weaker development seems most likely to be due to difficulties for pig producers to comply with the organic standards, which impose comparatively more pronounced changes in the way of production than e.g. in ruminant production systems. Pigs should have access to roughage and to grazing in the summer period although finishers can be kept in barns if access to an outdoor rum. A common way to comply with these regulations is to have sows on grassland all year round, but to rear the finishers in stables. Outdoor piglet production can be very efficient but careful measures needs to be taken to avoid environmental risks. Ringing of sows to avoid rooting on the grassland is a matter of concern. The regulations for housing include a considerable larger area per pig than in conventional production. This support good production and health results in the finisher production, and the regulation stating no tail docking does not seem to impose problems. However, such stables are often very expensive to establish and outdoor rearing of finishers throughout the growing period should be considered. Recent results indicate that this is a viable option. The ban on use of synthetic amino acids and GMO products for feeding represent a challenge in the feeding of finishers. There is a risk regarding carcass quality when soybean meal and amino acid are substituted with more oil rich ingredients for protein supply. On the other hand inclusion of new protein sources in the diet may results in particular meat quality characteristics including positive effects. It is concluded that there is a need in organic pig production to produce “new” products, which differ from the conventional pork products in order to comply with consumer expectations

Growth and sensory characteristics of alternative genotype broilers reared in organic orchards

The effects of age, sex and genotype on growth and sensory characteristics in organically produced broilers, when kept considerably longer before slaughtering, were examined. A total of 450 birds consisting of three genotypes, Light Sussex, New Hampshire, and the commercial strain I 657 were inserted at Fejoe Research Orchard. Half the birds were slaughtered at 91 days of age and half at 120 days of age. I 657 was significantly heavier compared to the slower growing breeds and Light Sussex was significantly heavier than New Hampshire. Males were significantly heavier than females across genotype, but weight ratios differed with genotype. No overall effect of genotype was found on the flavour or smell of the breast meat, but the commercial strain went towards a tougher and less tender consistency at 120 days of age, whereas the opposite was the case for the slower growing pure breeds. The positive flavour of salt was significantly improved at 120 days of age across genotype and age, with females having saltier flavour than the males. The positive flavour of sweet corn was improved in the meat from the males, but the positive smell of sweet corn was significantly improved in both males and females. No negative consequences of age were found

Full or partial outdoor rearing of slaughter pigs – effects on performance, carcass quality and nutrient load

An experiment with slaughter pigs from weaning to slaughter including five treatments and five replicates was carried out at the Danish organic experimental station, Rugballegård. Treatments included full or partial outdoor rearing of the pigs, and the replicates covered the seasonal effects. Pigs fed ad libitum indoors had a significantly lower feed consumption (5 MJ ME /kg gain), a lower lean percentage (2.3% points), and a higher backfat depth (1.1 mm, P < 0.05) than pigs fed ad libitum outdoors. Compared with outdoor pigs fed ad libitum, restricted feeding outdoors resulted in a significantly lower daily gain (107 g), a lower feed consumption (6.3 MJ ME/kg gain), higher lean percentage (2.1% points), and a reduced backfat (1.8 mm) (P <0.001). The content of soil nitrogen was considerably higher than for the soil outside the paddocks. Despite a considerable variation within the paddocks, N was distributed throughout the paddock. The present investigation highlights the fact that outdoor rearing of organic finishers may be a competitive option even in a temperate climate and all year round

Organic pig and poultry systems in Europe based on 100% organic feed supply - Overall assessment report, D6.1 and D 6.2

This report summarises the integrated findings of feedings strategies for organic pigs and poultry, based on 100 % organic feed, which are economic viable, support animal health and welfare and tend to reduce the environmental impact of the production (D6.1 and D6.2). The report is based on the findings about technical-biological relationships as presented in the Synthesis Report of ICOPP (Smith et al 2015). This is not further referred to in the report. Where other information is used references are given

Integration of organic animal production intor land use with special reference to swine and poultry

The development in organic livestock production can be attributed to an increased consumer interest in organic products while, at the same time, increased farmers' interest in converting to organic production methods—often stimulated by governmental support or subsidies. It is important that organic production systems can fulfil the expectations of each of these stakeholders if organic livestock production is to increase further. This is of particular importance if organic pig and poultry production (other than egg) is to move from the present niche-production to a significant place in the food market, as in the case of beef and milk. It can be argued that the limited organic pork and poultry production is related to the fact that it is far more difficult for farmers to change the existing production systems for pig and poultry compared to production systems for cattle and other ruminants in a way that gives a harmonious balance between the different aims of organic farming. Conflicts may occur as to the most appropriate rearing practice in considerating the basic aspects of the innate behaviour of animals on one hand, the risk of pollution from the production on the other and, in addition, the aim of producing in sufficient quantities. These possible conflicts are reflected in the compromises made in national or EU regulations on organic farming. In the regulations for organic farming, the aspect of allowing a high degree of natural behaviour of the livestock is, among others, translated in the requirement that livestock, in certain periods of their life or of the year, should be allowed to graze or have access to an outdoor area. The most common outdoor systems for pig and poultry used in intensively managed organic production have some significant drawbacks in relation to environmental impact (risk of N-leaching and ammonia volatilisation), animal welfare (nose-ringed sows), high mortality in poultry and workload and management constraints. From recent experience of such systems, it is argued that there is a need for a radical development of the systems. There is a need for outdoor/free range systems (for the sake of the livestock), which are constructed and managed in such a way that the livestock, at the same time, exert a positive influence on other parts of the farming system. There is evidence that pregnant sows can fulfil their nutritional needs to a large extent by grazing, that co-grazing sows with heifers can diminish the parasite burden of the heifers, and that the pig inclination for rooting can be managed in a way that makes ploughing and other heavy land cultivation more or less superfluous. As regard poultry, there is an indication that quite big flocks can be managed efficiently in a way where the flock act as weeders in other crops or fight pests in orchards. These elements need to be further explored as a basis for future system development