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| Sommer , Hendrik; Leithold, Günter. |
| Humus balance methods are used to estimate the humus situation on arable land of a farm. Guarantee for a stable yield is a sufficient supply of humus. There for it is necessary to use the appropriate balance method. The humus balance method from Leithold has been compared with the one that is described at Hülsbergen (2002) by using the Software Model REPRO. The humus balances of the investigated farm increased continuous throughout the study period. Based on the entire study period the humus supply increased 4 percentage points per year from 70% to 125%. The results of this study leads to the conclusion that improving the humus supply primarily resulted in the increase of livestock. The intensification of milk production has improved the supply of humus.... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Indicators and other value-laden measures. |
| Ano: 2013 |
URL: http://orgprints.org/21562/1/21562_sommer.pdf |
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| Heine , Ulrike; Sommer , Hendrik; Meemken , Dr. Diana; Werner, Dr. Christina; Sundrum, Prof. Dr. Albert; Blaha, Prof. Dr. Thomas. |
| Occurrence of MRSA was assessed on 42 organic and 88 conventional pig herds in different regions of Germany by taking dust samples and nasal swabs. The number of nasal swabs was adapted to the herd size so that a MRSA-prevalence of 5 % could be detected. All samples were selectively enriched and cultured on MRSA-selective chromagar. All cultured isolates were confirmed by PCR. In addition, the spa-types were identified. The results of this cross-sectional study showed that 11 of the 42 (26%) examined organic pig herds were identified as MRSA-positive, whereas 92 % of the conventional pig herds were identified as MRSA-positive. In both husbandry systems, similar spa-types (t011, t034) were identified, which are associated with the MRSA ST398. To find out... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2011 |
URL: http://orgprints.org/17575/3/Heine_17575.pdf |
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