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| Registros recuperados: 48 | |
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| Kongsted, A.G.; Hermansen, J.E.; Claudi-Magnussen, C.; Andersen, B.H.. |
| The risk of boar taint in entire males is supposed to increase with increased age and weight. Thus, a method to reduce this risk may be to slaughter the pigs at a low age and weight. This strategy is investigated as part of a new concept for organic pig production. It is hypothesised that organic pork has to differ markedly from conventional in order to overcome the heavy price competition. A seasonal outdoor rearing system based on production of small entire males, large female pigs and sows slaughtered after their first litter is believed to be a feasible strategy for producing organic pork with high credibility and superior eating quality. The study included a traditional breed, the Danish Black-Spotted. 17 gilts farrowed in April. Within the first week... |
| Tipo: Proceedings |
Palavras-chave: Pigs. |
| Ano: 2008 |
URL: http://orgprints.org/14807/1/14807.pdf |
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| Claudi-Magnussen, C.; Kongsted, A.G.. |
| Very small entire male pigs can be part of a new concept of organic seasonal production of pigs. The concept includes outdoor production of small entire male pigs, very large female pigs and sows slaughtered after first litter. The entire males and the sows are slaughtered in the summer and the female pigs gilts in December. The purpose of the very small entire male pigs is to avoid castration and boar taint at the same time. In order to make the concept special regarding product quality and image, different crossbreeds are considered including a traditional Danish breed. Two seasons (2007 and 2008) are planned. Results of the 2007 season are presented. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pigs. |
| Ano: 2008 |
URL: http://orgprints.org/14746/1/14746.pdf |
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| Kongsted, A.G.; Claudi-Magnussen, C.; Horsted, K.; Hermansen, J.E.; Andersen, B.H.. |
| The objective was to compare the performance and meat quality of two different pig breeds: The modern crossbred Landrace x Yorkshire (LY) and the traditional Danish Black-Spotted (BS) breed. The LY gilts and four of the BS gilts were inseminated with semen from Duroc (D) boars, the remaining BS gilts were served by BS boars. The experiment was performed on 26 gilts over two years. RESULTS: The Black Spotted breed in general had smaller litter sizes and weaned on average in terms of kg piglet 35% less than the modern breed combination. Crossbred piglets of BS×D had growth rates from birth to weaning comparable with piglets of LY×D. Black Spotted first parity sows were significantly fatter and less meaty, and the meat was significantly redder and darker... |
| Tipo: Journal paper |
Palavras-chave: Pigs. |
| Ano: 2011 |
URL: http://orgprints.org/18475/1/18475.pdf |
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| Kongsted, A.G.; Jakobsen, M.. |
| Organic food production is developing rapidly in Europe and other parts of the world. An important principle in organic production is “to provide living conditions that allow animals to express the basic aspects of their innate behaviour” (IFOAM, 2002). This principle is accentuated in the European regulations on organic production as “the livestock shall have permanent access to open air areas, preferable pasture” (EC No 834/2007). |
| Tipo: Journal paper |
Palavras-chave: Pigs. |
| Ano: 2014 |
URL: http://orgprints.org/27397/3/27397.pdf |
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| Eriksen, J.; Studnitz, M.; Strudsholm, K.; Kongsted, A.G.; Hermansen, J.E.. |
| Nose ringing of outdoor sows is practiced to reduce grass sward damage for environmental reasons but conflicts with natural behaviour considerations. We investigated effects of ringing pregnant and lactating outdoor sows on foraging and explorative behaviour, grass cover and nutrient deposition. The experiment included both ringed and unringed sows. For unringed sows the paddocks were either used continuously throughout the experiment or divided into two and sows were moved half way through the experimental period leaving the first used paddock for regrowth. Ringing did not prevent the sow’s rooting, but rooting was less pronounced, when sows were ringed. On average, ringing increased grass cover from 14 to 38% and from 64 to 81% in paddocks with pregnant... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Pigs; Air and water emissions. |
| Ano: 2006 |
URL: http://orgprints.org/10043/1/10043.pdf |
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| Manevski, Kirl; Jakobsen, Malene; Kongsted, A.G.; Geogiadis, Petros; Labouriau, R.; Hermansen, J.E.; Jørgensen, Uffe. |
| Nitrate leaching from outdoor pig production is a long-standing environmental problem for surface and groundwater pollution. In this study, the effects of inclusion of poplar trees in paddocks for lactating sows on nitrogen (N) balances were studied for an organic pig farm in Denmark. Vegetation conditions, soil water and nitrate dynamics were measured in poplar and grass zones of paddocks belonging to main treatments: access to trees (AT), no access to trees (NAT) and a control without trees (NT), during the hydrological year April 2015 to April 2016. Soil water drainage for each zone, simulated by two simulation models (CoupModel and Daisy), was used to estimate nitrate leaching from the zones in each paddock. N balances (input minus output) for the... |
| Tipo: Journal paper |
Palavras-chave: Pigs. |
| Ano: 2018 |
URL: http://orgprints.org/33775/1/1-s2.0-S0048969718328729-main.pdf |
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| Jakobsen, M.; Hermansen, J.E.; Andersen, Heidi Mai-Lis; Jørgensen, Uffe; Labouriau, R.; Rasmussen, Jim; Kongsted, A.G.. |
| Innovative strategies in free-range pig production is needed to improve the environmental performance of the system. Based on previous studies, inclusion of trees was hypothesized to improve the system’s nitrogen efficiency. We investigated sow elimination behaviour, faeces load and localisation as well as soil mineral nitrogen load in pasture based individual paddocks with and without access to two rows of poplar (Populus sp.) trees. Unlike expected sows showed no preference for eliminating in the zone with poplars but clearly avoided defecating near the hut, feed and water. Soil mineral nitrogen load showed a heterogeneous pattern as also found in previous studies. In comparison to grass, our results indicated that the poplars had an increased winter... |
| Tipo: Journal paper |
Palavras-chave: Pigs. |
| Ano: 2018 |
URL: http://orgprints.org/33906/1/Paper%20II.pdf |
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| Hermansen, J.E.; Andersen, B.H.; Bak, S.; Giersing, M.; Kongsted, A.G.; Lauritsen, H.B.; Møller, F.; Nørgaard, N.H.; Tvedegaard, N.. |
| Selv om der de sidste fire år har været en kraftig stigning i den økologiske svineproduktion i Danmark, udgør den økologiske slagtesvineproduktion mindre end 0,5% af den totale slagtesvineproduktion, og erfaringsgrundlaget for gennemførelsen af den økologiske svineproduktion er derfor spinkelt. I mange tilfælde er svineproduktionen indrettet således, at søerne holdes på friland, mens slagtesvinene året rundt opstaldes i stalde med tilhørende udearealer, og det er for sådanne systemer, at videngrundlaget er bedst. |
| Tipo: Report chapter |
Palavras-chave: Pigs. |
| Ano: 2000 |
URL: http://orgprints.org/21615/4/21615.pdf |
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| Kongsted, A.G.; Therkildsen, M.; Hermansen, J.E.. |
| Scientific Workshop on Organic Pig Production, Hovborg Kro, Holmeåvej 2, 6682 Hovborg, DK June 12th and 13th 2013 Programme: June 12th 2013: 9-9.30: Coffee, bread, and welcome (Marianne Bonde, UHF) 9.30-10: Sandra Edwards (UK): Future challenges in organic pig production 10-11.30: Theme 1: Production of entire male pigs / Chaired by Jan Tind Sørensen The aim of organic pig production is to ensure high animal welfare and natural products. Banning castration is thus a logical step forward, but the risk of boar taint in the meat is a major barrier for marketing meat from entire male pigs. Is it possible to use genetic tools and breeding strategies to prevent boar taint? What is the effect of feeding, management, housing and hygiene? Is... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pigs. |
| Ano: 2013 |
URL: http://orgprints.org/24635/7/24635.pdf |
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| Kongsted, A.G.; Horsted, K.; Hermansen, J.E.. |
| Free-range pig production in Northern Europe is characterized by high inputs of concentrate on grassland. This increases risk of nutrient leaching, increases feed costs and puts a pressure on land resources. Pigs’ unique ability to find a part of their food directly in the field where they are kept should be taken into consideration. One below ground field forage characterized by very high yields and with great potential as fodder source is Jerusalem Artichokes (JA) tubers. The nutritional contribution from free-range foraging, growth, feed conversion and behaviour were investigated in 36 growing pigs foraging on JA and fed concentrates restrictedly (30 % of energy recommendations) or ad libitum. Behavioural observations were carried out weekly over the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pigs. |
| Ano: 2013 |
URL: http://orgprints.org/24637/3/24637.pdf |
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| Kongsted, A.G.; Horsted, K.; Hermansen, J.E.. |
| The nutritional contributions from free-range foraging, growth, feed conversion and behaviour were investigated in 36 growing pigs foraging on Jerusalem artichokes (JA) and fed concentrates restrictedly (30% of energy recommendations) or ad libitum. Compared to the ad libitum fed pigs, the pigs fed restrictedly had a significant lower daily gain (560 vs. 1224 g pig_1), improved feed conversion ratio (17.6 vs. 42.8 MJ ME concentrate kg_1 live weight gain) and spent more time foraging JA tubers (7.9 vs. 1.1%). It is estimated that pigs fed restrictedly found approximately 60% of their energy requirement from foraging in the range. |
| Tipo: Journal paper |
Palavras-chave: Pigs. |
| Ano: 2013 |
URL: http://orgprints.org/22628/7/22628.pdf |
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| Registros recuperados: 48 | |
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