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| Bennedsgaard, Torben Werner; Thamsborg, Stig Milan; Vaarst, Mette; Enevoldsen, Carsten. |
| This paper focuses on the changes in production, herd health and veterinary treatments in Danish organic dairy herds during approximately eleven years based on historic data from herds converted to organic milk production before 1990 (old organic herds) compared to herds converted in 1995 and 1999-2000 and herds that are still conventional. Herd size, milk production, the shape of the lactation curve, somatic cell counts and veterinary treatments for mastitis, retained placenta and ketosis are compared over time and between herd groups. The old organic herds differed from the other three herd groups by having lower milk production per cow, lower somatic cell counts and fewer treatments of mastitis. Herds converted in 1995 and 1999-2000 were comparable to... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle. |
| Ano: 2003 |
URL: http://orgprints.org/4681/1/4681.pdf |
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| Bennedsgaard, Torben Werner; Thamsborg, Stig Milan; Aarestrup, Frank Møller; Enevoldsen, Carsten; Vaarst, Mette; Christoffersen, Anna Bodil. |
| Quarter milk samples from cows with high risk of intramammary infection were examined to determine the prevalence of Staphylococcus aureus (SA) and penicillin resistant SA (SAr) in conventional and organic dairy herds and herds converting to organic farming in a combined longitudinal and cross-sectional study. 20 conventional herds, 18 organic herds that converted before 1995, and 19 herds converting to organic farming in 1999 or 2000 were included in the study. Herds converting to organic farming were sampled three times one year apart; the other herds were sampled once. Risk of infection was estimated based on somatic cell count, milk production, breed, age and lactation stage. The high-risk cows represented about 49 % of the cows in the herds. The... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2006 |
URL: http://orgprints.org/4714/1/4714_ny.pdf |
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| Vaarst, Mette; Thamsborg, Stig Milan; Bennedsgaard, Torben Werner; Houe, Hans; Enevoldsen, Carsten; Aarestrup, Frank Møller; Snoo, Arno de. |
| In organic dairy farming, a goal about improved animal welfare and avoidance of the use of chemicals has introduced restrictions in the use of antimicrobials for treatment of infectious diseases. Mastitis is the major cause of antimicrobial treatments in Danish dairy farming. In order to improve and minimise the use of antimicrobials and the risk of antimicrobial resistance in organic farming, a study based on qualitative research interviews with newly converted organic farmers was carried out. Twenty farmers,18–26 months after conversion, were interviewed focusing on mastitis treatment patterns and the farmers’ own perception of possible changes in strategies, choices and daily routines linked to mastitishandling. Antimicrobial treatment was the dominant... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2003 |
URL: http://orgprints.org/4717/1/4717.PDF |
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| Aarestrup, Frank Møller; Bennedsgaard, Torben Werner; Enevoldsen, Carsten; Houe, Hans; Katholm, Jørgen; Larsen, Helle Daugaard; Nylin, Britta; Pedersen, Lars Holst. |
| Under visse forudsætninger åbnes der i pilotprojektet NYSundhedsrådgivning (NYS) mulighed for, at deltagende besætningsejere kan førstegangsbehandle mastitis hos malkekøer med antibiotika. Arbejdsgruppen bag NYS har besluttet, at der altid før behandling skal udtages en mælkeprøve til bakteriologisk diagnostik. Til afklaring af spørgsmål i forbindelse hermed sendte arbejdsgruppen en række spørgsmål til faglig høring hos relevante personer. På baggrund af tre opstillede prøveudtagnings- og analysestrategier (hurtigst muligt, postforsendelse med en eller 2 dages forsinkelse eller nedfrysning af prøver til senere analyse) efterspurgtes en udtalelse angående anvendeligheden af bakteriologiske mælkeprøveanalyser som støtteværktøj til valg af hensigtsmæssige... |
| Tipo: Report |
Palavras-chave: Health and welfare. |
| Ano: 2004 |
URL: http://orgprints.org/4715/1/4715.pdf |
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