Cikorie er egnet men endnu for dyrt til svin

Tørret cikorierod kan reducere ornelugten hos hangrise og mindske generne ved parasitter, men dansk dyrket cikorie er i øjeblikket for dyrt for de økologiske svineproducenter. Det viser beregninger i forbindelse med dyrkningsforsøg

Androstenon-indol-skatol-protokol

Beskrivelse af metode til kvantitativt at bestemme indholdet af androstenon, indol samt skatol i spækprøver

Økologisk Svineproduktion 2014 - Uden Kastration

Formålet er at udvikle et helhedsorienteret management-koncept for fremtidens økologiske svineproduktion uden kastrerin

Effect of chicory root and age on the gastrointestinal ecosystem and accumulation of skatole and androstenone in back-fat of male and female pigs

Effect of chicory root and age on the gastrointestinal ecosystem and accumulatin of skatole and androstenone in back-fat of male and female pigs

Hangriselugt, hvad er det? Kan det reduceres i praksis?

Temadag om økologisk svineproduktion på Hovborg Kro Holmeåvej 2, 6682 Hovborg 13. juni 2013 kl. 9-17 Besætningsbesøg hos Nicolaj Pedersen, Hovborgvej 84, Hovborg (bus afgang fra Hovborg Kro kl. 9.00) Velkomst og introduktion til dagen / Marianne Bonde, UHF Hangriseproduktion / ordstyrer Jan Tind Sørensen • Hangriselugt, hvad er det? - Og kan det reduceres i praksis? v Hanne Maribo, Videncenter for Svineproduktion og Bent Borg Jensen, Aarhus Universitet • Kan ekstra rengøring fjerne lugten af orne – eller er det slagtevægten der skal optimeres? v Rikke Thomsen, Aarhus Universitet og økologisk svineproducent Preben Drastrup, Nibe • Erfaringer fra praksis med hangrise v økologisk svineproducent Gert Ladegaard Jensen, Ikast Slagtesvin på friland og grovfoder / ordstyrer Jan Tind Sørensen • Kan slagtesvin vokse på det de finder i marken og hvordan smager kødet v. Anne Grete Kongsted, Aarhus Universitet, og økologisk svineproducent Karl Schmidt, Vamdrup • Grovfoder til slagtesvin - produktion og sundhed (på engelsk) v. Liisa Voutila, Agrifood Research, Finland • Parasitter – hvordan bekæmper vi dem v Helena Mejer, København Universitet Intro workshop / Marianne Bonde, UHF Workshops: cafe struktur 4 grupper a 20 min med tovholder • Hangriseproduktion / Marianne Bonde, UHF • Slagtesvin på friland / Anne Grete Kongsted, AU • Dyrkning af protein-kilder / Tove Serup og Margrethe Askegaard, VFL • Miljø og dyrevelfærd / Tine Rousing, AU og Helena Mejer, KU Afrunding inkl. 5 min opsummering fra hver workshop-tovholder/ordstyrer Jan Tind Sørense

Screening af hangrise - meddelelse nr. 996

En screening af 9 hangrisebesætninger viste, at frasorteringsprocenten alene baseret på skatoltallet var 2,3%. En sortering på baggrund af human nose gav 11% frasorterede, og der var 37% af hangrisene, der lå over 1.0 ppm androstenon

Reduction of boar taint - the practical way

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): Reduction of boar taint – the practical way. Anders Strathe (DK): Prevention of boar taint by means of genetics and breeding Theme 2: Outdoor production of growing-finishing pigs, provision of roughage / Chaired by Jan Tind Sørensen Use of roughage and outdoor production are two very important characteristics in organic livestock production. How does the use of roughage affect health and performance in growing-finishing pigs? Is it possible to encourage outdoor pigs to find a large part of their food directly in the field where they are kept, and how does this influence pig performance and meat quality? These issues will be discussed on the basis of results from two major research projects, SUMMER and ICOPP. Liisa Voutila (FI): Effect of roughage on pig health and performance Anne Grete Kongsted (DK) and Margrethe Therkildsen (DK): Outdoor growing-finishing pigs: effect of genotype and feeding strategy on animal behaviour, performance and meat quality Theme 3: Environmental impact and animal welfare / Chaired by Jan Tind Sørensen Robust and competitive organic pig production must minimise environmental impact as well as ensuring good animal health and welfare. In theory, improving animal health and welfare reduces environmental impacts through decreased medicine use, improved growth rates and feed conversion efficiency. Is it possible to verify these hypotheses on working farms? The relationship between animal health, welfare and environmental impact will be discussed based on the results from the Core organic II research project ProPig including data collection on these aspects on 75 organic pig farms across Europe. More specifically, it will also be discussed how management practices may affect parasite transmission and thus animal welfare within organic systems (PAROL and NOCAST projects). Christine Leeb (A): Assessment of animal welfare and environmental impact. Helena Mejer (DK): Parasite impact, transmission and control John Hermansen (DK): Introduction to group discussion

Hangrise lugter mere end forventet

Økologiske hangrise vokser godt, men mange har et højt niveau af stoffer, der giver ornelugt

A bioreactor system to study survival of Salmonella typhimurium in pig gut content

The batch culture system included six bioreactors. Three bioreactors containing stomach slurry were maintained at pH 4,5 and 6 respectively. Bioreactors containing small intestine slurry were maintained at pH 5,6 and 7 respectively. The bioreactors were inoculated with 10 ml of viable Salmonella. The bioreactors were maintained for 6 hours. Samples of 10 ml were taken at 0 time and at 1 ,2,4 and 6 hours. The samples were analysed for the presence of Salmonella and SCF A. In the stomach samples Salmonella numbers increased at pH 6 but fell at pH 4. In the small intestine sample Salmonella numbers increased at pH 6 and 7. In terms of SCFA production, in the stomach, with samples at pH 6 there was little change in the amounts of lactate, succinate and formate to that detected at 0 time, however levels of acetate did increase slightly. In the small intestine samples levels of succinate and formate increased slightly up to 4 hours, levels of acetate increased significantly from 0 to 6 hours. In terms of the specific growth rates of the individual strains, both strains grew at pH 6 in the stomach content and to a greater extent in the small intestinal content. A bactericidal effect was observed at pH 4 in the stomach content while neither killing nor growth occurred at pH 5 either in the stomach or the small intestine content. Both strains grew well in the small intestine content at pH 7, showing generation times of up to 24 min