Archive

2,595 posts

Categories
Select one or more categories (Optional.)
Reset
Food

Casey M.G., Gruskovnjak J., Fröhlich-Wyder M.-T.

Reaction of Streptococcus thermophilus to Stress

The effect of low pH on the survival of S. thermophilus in liquid cultures was studied. Results showed that the bacteria do not live more than a week at 37°C when grown in milk. Survival can be prolonged by growing them in diluted milk or preferably in M17 containing low concentrations of lactose. It would…
Plant production

Lê C.-L., Thomas D., de Joffrey J.P., Tschuy F.

Bioencapsulation: in vitro production and conservation of miniaturized seeds of potato

A procedure for the encapsulation of nodal segments of potato aiming to preserve their growth potential for a long period of storage is described. Nodal segments with axillary buds were encapsulated in calcium alginate matrix containing Murashige & Skoog (MS) nutritive medium. These segments (or microbeads) were then stored at +4 °C for a period…
Plant production

Hebeisen Th., Ballmer Th., Reust W., Bertossa M.

New processing potato varieties

From 1999 to 2001 a selection of mid-early to late processing potato varieties have been assessed within the main trials (7 locations) throughout Switzerland. The experiments were conducted by the two Swiss Federal Agricultural Research Stations Zurich-Reckenholz and Changins within the framework of the swisspatat working group for potato cultivars. For the varieties Lady Olympia,…
Environment

Mosimann Th., Bono R., Simon P.

Does the ecological evidences` programme produce a better erosion control? The development of the soil erosion risk in the canton of Basel-Landschaft

The soil survey programme of the canton of Basel-Landschaft also includes the survey of the development of the soil erosion risk. Every 10 years more than 70 agricultural farms are questioned about their methods of cultivation and the risk of soil erosion is evaluated. The results of the last questioning dating from 2002 show that…
Food

Bachmann H.-P., Thomet A., Schafroth K.

Innovatives processes for cheese-making

Milk was concentrated by microfiltration. From this concentrate fresh, soft and semihard cheeses can be produced very easily. These processes are also economically very attractive: less investments in plants and infrastructure, labour saving, high-grade by-products (unacidified permeate with native whey proteins) and the option for a continuous production. On the occasion of several practical demonstrations,…
Animal production

Spara A. F., Gutzwiller A., Gafner J.-L., Stoll P.

Efficacy of whey preservatives

The efficacy of 0.2 % formic acid, 0.3% and 0.6% propionic acid and 0.05 % H2O2 against yeast growth in whey was tested in the laboratory. After inoculation with cultures of naturally contaminated whey and the addition of the preservatives the whey samples were incubated during four days. Gas pressure was measured continuously. Yeast numbers…
Animal production

Morel I., Aeschlimann G., Philipp A., Boessinger M., Kreuzer M.

Does an outdoor pen have beneficial effects in calves?

The efficacy of 0.2 % formic acid, 0.3% and 0.6% propionic acid and 0.05 % H2O2 against yeast growth in whey was tested in the laboratory. After inoculation with cultures of naturally contaminated whey and the addition of the preservatives the whey samples were incubated during four days. Gas pressure was measured continuously. Yeast numbers…
Plant production

Kölliker R., Boller B., Häfele Y., Günter S., Herrmann D., Widmer F.

Genetic Diversity in Swiss Red Clover Germplasm

Decades of on farm red clover (Trifolium pratense L.) seed production led to numerous, well adapted, persistent red clover accessions, commonly referred to as Mattenklee landraces. Although not used any more in present day agriculture, seed lots of approximately 100 old landraces are still available. So far, there was no information on the genetic variability…
Animal production

Stoll W., Sollberger H., Collomb M., Schaeren W.

Rape-, lin-, and sunflowerseed in dairy cows rations

In the investigation, 3 groups of 11 dairy cows were included. All animals were fed hay ad libitum, 15 kg fodder beet and concentrate feed. In the first experimental period, the daily ration was supplemented with 1,0 kg ground rapeseed, sunflowerseed or linseed respectively. In the second period, the quantity of sunflowerseed and linseed was…
Plant production

Bänziger I., Forrer H.R., Schachermayr G., Gindrat D., Frei P.

Resistance of wheat varieties to common bunt

The common bunt (Tilleta caries) is widely spread and is one of the most important seed-born diseases in wheat. However, since the introduction of chemical seed dressing it can be efficiently controlled. Given that the directives of organic farming do not permit the use of synthetic chemicals for control, other means are needed in order…
Animal production

Hermenjat C., Chassot A., Dufey P.-A.

Economic aspects of steer fattening with six different breeds. Part 2

The evolution during the fattening period of the margin of fattening steers of the breeds Angus (AN), Simmental (SI), Charolais (CH), Limousin (LI), Blonde d’Aquitaine (BL) and Piemontese (PI) was analysed for two marketing channels – standard or as label. This study is based on the results obtained with an optimum fatness score (part 1).…
Animal production

Hermenjat C., Chassot A., Dufey P.-A.

Economic aspects of steer fattening with six different breeds. Part 1

The results of a fattening trial with steers covering the weight range 300 kg LW to optimum fatness score were used for an economic analysis comparing the breeds Angus (AN), Simmental (SI), Charolais (CH), Limousin (LI), Blonde d’Aquitaine (BL) and Piemontese (PI). More than 95 % of margin variations are attributed to differences in purchasing…
Food

Aebi R., Mühlemann M., Bühlmann G., Schällibaum M.

Risk assessment of L. monocytogenes in Swiss Emmental raw milk cheese

About 33% of the total Swiss agricultural earnings are from the milk production which is important to the Swiss agricultural industry. Our approach follows the origin and propagation of Listeria monocytogenes-contamination using data and expert-knowledge at all involved production levels and competence areas. The result is shown in a contamination profile along the food production…
Food

Mühlemann M., Aebi R., Schällibaum M.

An introduction to risk analysis and microbiological risk assessment

In this article, the concepts of microbiological risk analysis are presented as well as risk assessment following the Codex Alimentarius guidelines. Special attention is given firstly to the so-called infectious disease triangle between host, microorganism and foodstuff and secondly to different approaches of risk assessment in practice. The dynamic process of controlling risks is visualised…
Plant production

Suter D., Briner H., Bosshard H.-R., Mosimann E., Stévenin L.

New recommmanded varieties of tall fescue and meadow foxtail

Between 2000 and 2002 the Swiss Federal Research Stations for Agroecology and Agriculture (FAL) at Reckenholz in Zurich and for Plant Productions of Changins (RAC) conducted comparative trials with 22 varieties of tall fescue and four varieties of meadow foxtail at five experimental sites. Based on measurements and observations of yield, persistence, competitive ability, disease…
Animal production

Bärlocher H., Badertscher R., Möhring A., Rodriguez-Zas S., Pettigrew J.E., Scheeder M.R.L., Wenk C.

Fattening pig: influence of the housing system on fat free lean

The degree to which the housing system with fully slatted floor (without outdoor area) or the littered multy-surface system with restricted outdoor area may have an influence on that fat free lean (FFL) of fattening pigs was examined on the basis of data from 95 farms. In the system with fully slatted floor, the FFL…

Project partners

  • Logo AGRIDEA
  • Logo Agroscope
  • Logo ETH Zürich
  • Logo ZHAW

© 2026 Agrarforschung Switzerland Terms and conditions