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Evaluation of salting as a hay preservative against farmer's lung disease agents

100%

Roussel S., Reboux G., Dalphin J.-C., Laplante J.-J., Piarroux R.

Annals of Agricultural and Environmental Medicine

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2005

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tom 12

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nr 2

217-221

Salting is a traditional, empirical practice used commonly in dairy farming regions to prevent moulding and heating in hay. Our aim was to evaluate the effect of salting hay on the proliferation of microorganisms, particularly thermophilic actinomycetes and moulds involved in farmer's lung disease. Fifty-one pairs of salted and unsalted hay bales from 14 farms were produced during the haymaking season between March and July. Both the salted and the unsalted bales came from the same field, and were packed and stored under identical conditions. Sampling was performed by microbiological analysis including 6 culture media during the winter following salting (January-February). The use of salt did not significantly decrease the amount of Saccharopolyspora rectivirgula , the actinomycetes most commonly involved in farmer's lung disease, or that of Absidia corymbifera, Eurotium amstelodami and Wallemia sebi, three moulds responsible for farmer's lung disease in eastern France. Our results are important in that they can inform farmers and dispel the false sense of security induced by salting, which is reinforced by the misconception that palatable hay is healthy hay.

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Multilevel analysis of the impact of environmental factors and agricultural practices on the concentration in hay of microorganisms responsible for farmer's lung disease

100%

Gbaguidi-Haore H., Roussel S., Reboux G., Dalphin J.-C., Piarroux R.

Annals of Agricultural and Environmental Medicine

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2009

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tom 16

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nr 2

219-225

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Impact of agricultural practices on microbiology of hay, silage and flour of Finnish and French farms

86%

Reboux G., Reiman M., Roussel S., Taattola K., Millon L., Dalphin J. C., Piarroux R.

Annals of Agricultural and Environmental Medicine

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2006

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tom 13

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nr 2

Exposure to microorganisms in farm environments may cause respiratory disorders, e.g. asthma, organic dust toxic syndrome and allergic alveolitis. By reducing microbiological deterioration of organic materials, some agricultural practices have a protective effect. Microbiological analyses were carried out on hay, silage and flour samples (n=107) from farms in Finland and France (n=23) that use different methods of haymaking. High concentrations of Absidia corymbifera were found in approximately 35% of French hay samples and only 10% of Finnish hay samples. Concentrations of Eurotium spp. were found in 20% of hay samples from both regions. High concentrations of Wallemia sebi typified Finnish hay (38%) more than French hay (8%). Rhodotorula yeast was frequently and abundantly found in Finland, but never in France. The method used to make hay appeared to be the main factor affecting the microbiology of the hay. A. corymbifera and Eurotium spp. concentrations were smaller in low-density square bales than in others. In conclusion, our results emphasize the importance of good agricultural practice in the microbiological quality of fodder.

Ograniczanie wyników

3 Annals of Agricultural and Environmental Medicine

3 Piarroux R.

3 Reboux G.

3 Roussel S.

2 Dalphin J.-C.

1 Dalphin J. C.

1 Gbaguidi-Haore H.

1 Laplante J.-J.

1 Millon L.

1 Reiman M.

1 Taattola K.

1 2009

1 2006

1 2005

Evaluation of salting as a hay preservative against farmer's lung disease agents

Multilevel analysis of the impact of environmental factors and agricultural practices on the concentration in hay of microorganisms responsible for farmer's lung disease

Impact of agricultural practices on microbiology of hay, silage and flour of Finnish and French farms