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| Registros recuperados: 10 | |
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| Thomsen, Rikke; Rousing, Tine; Edwards, Sandra A; Labouriau, R.; Sørensen, Jan Tind. |
| Alternatives to surgical castration in organic pig production are needed, due to stress and pain caused by castration of male pigs. One alternative, which is in accordance with the values in organic farming, is production of entire male pigs. However, changed behaviour of entires compared to castrates might affect the welfare of the animals. Therefore, in order to produce entire male pigs, without compromised animal welfare, changes in the production system, possible offered by the organic farming system, with e.g. more available space and access to rooting material and roughage, might be a necessity. The aim of this article is to investigate the effect of grouping strategy and group size on levels of mounting behaviour and skin lesions, hypothesising that... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Production systems; Health and welfare. |
| Ano: 2015 |
URL: http://orgprints.org/28171/7/28171.pdf |
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| Thomsen, Rikke; Edwards, Sandra E; Jensen, Bent Borg; Rousing, Tine; Sørensen, Jan Tind. |
| To investigate the extent to which the level of androstenone and skatole decreases with a decrease in live weight and/or age at slaughter of entire male pigs produced under organic standards, 1174 entire male pigs were raised in parallel in 5 organic herds, distributed across 4 batches in summer and winter. The median androstenone level was high for organic entire male pigs (1.9 µg/g), but varied greatly both within and between herds. Median skatole level was 0.05 µg/g, also with a wide range both within and between herds. Decreasing live weight over the range of 110±15.6 kg sd was found to decrease androstenone as well as skatole concentration, however, with different patterns of association. Age did not have significant direct effect on either... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Feeding and growth; Pigs. |
| Ano: 2014 |
URL: http://orgprints.org/28043/7/28043.pdf |
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| Thomsen, Rikke; Edward, Sandra E.; Jensen, Bent Borg; Rousing, Tine; Sørensen, Jan Tind. |
| Production of entire male pigs could be a future strategy for organic pig production. However, production of entire males leads to increased risk of carcasses with elevated boar taint levels. It is hypothesized that skatole levels in pig meat are affected by soiling with manure and that organic housing facilities can increase the risk of pigs being heavily soiled. Therefore the overall aim of this study was to investigate if increased pig and pen soiling increases skatole concentration in entire male pigs. In 5 herds, 1174 organic entire male pigs were reared in four batches across two seasons, summer and winter. Measurements of pig and pen soiling, as well as fat skatole and androstenone concentration and human sensory tests of fat odour, were performed.... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Poultry; Regulation. |
| Ano: 2015 |
URL: http://orgprints.org/28044/7/28044.pdf |
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| Thomsen, Rikke. |
| In Denmark surgical castration is a routine procedure both within conventional and organic pig production, but this procedure has recently been debated due to welfare issues. Changing the entire pig producing sector to production of entire male pigs is not straightforward, as extensive research have shown problems of boar taint in the meat of entire male pigs, but also welfare issues arising during rearing.Production of entire male pigs will be favorable from an organic perspective, as omitting castration complies well with the values of organic farming in terms of animal integrity, and as execution of the castration procedure is impractical on pigs reared outdoors. Knowledge is lacking on how the rearing period is best adapted within the organic housing... |
| Tipo: Thesis |
Palavras-chave: "Organics" in general; Pigs. |
| Ano: 2015 |
URL: http://orgprints.org/28865/7/28865.pdf |
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| Jensen , Bent Borg; Maribo, Hanne; Thomsen, Rikke. |
| 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 it possible to process the meat to minimize the risk of boar taint? These issues will be discussed based on the results from the research project NOCAST, as well as other on-going Danish research projects on entire male pigs. Susanne Støier (DK): Boar taint – detection, consumer response and product quality Hanne Maribo (DK), Bent Borg (DK) and Rikke Thomsen (DK):... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general; Feeding and growth; Breeding and genetics. |
| Ano: 2013 |
URL: http://orgprints.org/24681/13/24681.pdf |
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| Registros recuperados: 10 | |
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