Swiss Agricultural Research – Archive of the Online Journal

Plant production 2000

Rüegger A

The field inspections for seed certification of cereals, hybrid maize, grain legumes, red clover and forage grasses were carried out on 8‘945 ha in 2000. In cereals 92,5% of the registered area was admitted during field inspection, 2,1% was refused and 5.4% was withdrawn from field inspection. Hail damage, presence of other cereals, and varietal…

Animal production 2000

Morel I.

The possibility to replace the milk substitute in the diet of the veal calf by cereals was studied in three feeding trials with 224 calves. The aim of the study was to reduce the production costs and to improve the image of veal production. The animals of the experimental group received either rolled barley or…

Animal production 2000

Lemme A., Wenk C., Bee G.

Three experiments with growing-finishing pigs were performed to evaluate the effects of dietary trivalent chromium (Cr) under certain feeding conditions. The results of the first study indicated that an amount of 200 mg Cr / t feedstuff (ppb) is sufficient since daily gain was increased when 200 ppb Cr was added compared to the control…

Other 2000

Jakob R

Material fatigue and/or overloading can cause a collapse of tower silos of glass fiber reinforced plastic. As the silos are designed mainly for the relatively coarse-fibred grass and maize silages, the danger of collapse increases when the silo is filled with products of a high density, such as sugar beet pulp, coarse meal of maize…

Other 2000

Gysi M., Ott A

In a field experiment, a sandy loam was subjected to single passes with a sugar beet harvester at two different soil water potentials and two different hopper fillings. The moist plot responded to a wheel load of 11,23 t with an increase in bulk density and pre-consolidation pressure as well as with a decrease in…

Plant production 1999

Winiger F.A., Maag W., Reust W.

Plant production 1999

Meisser M., Wyss U.

At the Swiss Federal Research Station for Animal Production at Posieux, four conservation methods were compared and their impact on forage quality was investigated. The evaluation of propionic acid as preservative for moist hay was of particular interest. Three roughage types were harvested: a late first cut as well as an early and late third…

Animal production 1999

Stumpf S., Beyer S., Wechsler B.

Self-feeding at a horizontal silo adjacent to the exercise yard is a labour-saving alternative in winter feeding. In an experiment with forty dairy cows divided into two groups, the impact of the animal/feeding place ratio (1,5:1, 2:1 and 2,5:1) on social and feeding behaviour of the cows was investigated. We also varied the distance between…

Animal production 1999

Keil N.M., Audigé L.

Food 1999

Sieber R., Haldimann M., Zimmerli B.

The natural environmental conditions in Switzerland are not in favor of an adequate selenium supply to humans and animals. However, the results of different studies (food, blood serum) demonstrate a sufficient selenium status of the population. The reasons are selenium-rich wheat imported from North-America as well as the supplementation of feeds for domestic animals. It…

Other 1999

Gagnaux D.

Environment 1999

Menzi H., Lehmann E., Kessler J.

To furnish a reliable basis for the revision of the guide values on manure production and composition of fattening beef cattle, 37 balance experiments were conducted on 13 Swiss farms. The daily growth rate of the animals varied between 1100 and 1500 grams. The mean annual production of slurry per fattening beef place was 7.5…

Environment 1999

Candinas T., Golder E., Kupper T., Besson J.-M.

The quantity of compost produced in Switzerland has been assessed, and the quality of individual composts has been determined and compared to the legal standards describing a minimal quality of compost. A last comparable study has been made in 1988. Today, more than 450’000 tons of fresh material are composted in more than 200 compost…

Other 1999

Rieder P.

Plant production 1999

Mediavilla V., Bassetti P., Leupin M., Mosimann E.

Plant production 1999

Mediavilla V., Jorquera M., Schmid-Slembrouck I.

A decimal code for growth of hemp (Cannabis sativa L.) is presented. The life cycle is divided into four principal stages: germination and emergence, vegetative stage, flowering and seed formation, senescence. Each principal stage is subdivided into secondary stages. The practical use of the code is discussed with particular reference to different yield components.<br><br>Un codice…

Plant production 1999

Gut D., Weber E.

The increasing number of naturalized nonnative (exotic) plant species is a significant component of global change in most regions of the world. In agricultural areas new exotics may cause new weed problems and may demand for new control measures. In natural areas newly established exotic species may become dominant and suppress native vegetation, thus threatening…

Plant production 1999

Boller B.

Three new Swiss cultivars of perennial ryegrass have been inscribed recently into the list of recommended cultivars of forage plants: Cavia (diploid, early), Arvicola (tetraploid, very early) and Lacerta (tetraploid, early). They were mainly derived from the same genetic resources (Swiss ecotypes collected in 1972) as our very early cultivar Arion. As compared to Arion,…

Animal production 1999

Wyss U., Fivian R.

In a trial we investigated the influence of the filling time on silage quality. On the one hand we ensiled the pressed pulp after the transport from the sugar factory on the same day and on the other hand, ensiling was carried out after two days. In all variants we used 9 m3 silos and…

Animal production 1999

Wyss U., Fivian R.

In a trial we investigated the efficacy of different silage additives. Besides seven chemical products we also tested an inoculant, which was applied in liquid and solid form, as well as a product which contained a combination of lactic acid bacteria and chemical substances. The tests were carried out in laboratory silos in two series.…

Animal production 1999

Kessler J., Jost M.

During 34 days 4 x 16 female and castrated male piglets of the large white breed received a complete feed with the following vitamin A-, E- and D-concentrations in two consecutive series: Treatment A: 4000 IE, 16 mg, 500 IE, treatment B: 6500 IE, 16 mg, 1100 IE, treatment C: 10000 IE, 25 mg, 1500…

Animal production 1999

Gutzwiller A.

66 newborn piglets of 11 litters were allotted to 6 treatments: 285 mg iron (Fe) as Fe methionine orally either within 12 h after birth or on the 2nd day (FeM1, FeM2), 290 mg Fe as Fe dextran orally either within 12 h after birth or on the 2nd day (FeD1, FeD2), 200 or 100…

Agricultural economics 1999

Ammann M.

Within the framework of an INTERREG Project a study on the horticultural sector in the Lake of Constanze region was carried out. This article deals with the economic effects of an increasingly open market on production and trade. Production was investigated using a linear programming model. One of the main influences on production are the…

Other 1999

Gallmann P. U.

Environment 1999

Bänziger I., Winter W., Rüegger A., Krebs H.

Warm water treatment of seeds of winter wheat cv. Runal under practical conditions was compared with a laboratory warm water treatment, a chemical seed dressing, and an untreated control in field and laboratory experiments in 1997-1998. The treatment under practical conditions was performed as follows: seed lots (350 kg) were dipped into water (45°C) for…

Plant production 1999

Jenny E., Amiet J., Hecker A., Forrer H.-R.

In Europe Septoria tritici (ST) is actually one of the most important diseases in wheat. The data from 12 Swiss field trials from 1993 to 1998 with different cultivars were analyzed. In 1/3 out of the cases a treatment against ST was economically justified. This situation is an ideal prerequisite to use intervention thresholds. From…

Food 1999

Höhn E., Guggenbühl B.

Sugar content and firmness are two important factors determining eating quality of apples. Sensory analysis with a trained panel confirmed that sweetness, sourness, fruitiness and firmness can be predicted by instrumental measurements such as total soluble solids (refractometer), titratable acidity and firmness measurements by penetrometer. Tests with consumers indicated that Golden Delicious of acceptable eating…

Food 1999

Eberhard P., Strahm W., Eyer H.

Pasteurized cream with 260, 290, 320 and 350 g/kg fat content was treated by high pressure in the range between 300 and 800 MPa. Whipping properties of cream with fat content < 320 g/kg was better after pressurization. The whipping time was 15 to 25 % shorter and loss of serum was lower. This is…

Food 1999

Dufey P.-A., Chambaz A.

Switzerland is not exempted from the proliferation of labels in the beef industry. The possible effects on beef quality of the specific norms which have been elaborated by the label organisations are discussed in this review. The quality of the final product depends not only on the way the animals are fattened, it depends even…

Food 1999

Dufey P.-A., Chambaz A.

Meat quality is the result of complex effects, which depend on many factors, primarily the location of the muscle in the body, but also on sex, breed, nutrition, growth rate, age at slaughter, fatness and carcass conformation. The literature on the subject of the various influencing factors is reviewed, and their impact on bovine meat…

Archive

Field inspections 1999

Cereals instead of milk substitute in the diet of veal calves

Trivalent Chromium – Interactions with the diets

Plastic silos – Recommendations for safe operation

Influence of single passes with high wheel load on a structured, unploughed sandy loam soil

National Catalogue of potatoes varieties 2000

Effects of propionic acid on preservation and quality of baled moist hay

Behaviour of dairy cows with self-feeding at a silo

Prevention of inersucking in dairy cows and heifers

Selenium status of the Swiss population and the agriculture

Qualitiy comes first

Amount and composition of manure produced by fattening beef cattle

Nutrient and pollutant content of compost

Agricultural research in favour of transnational cooperation

Agronomic characteristics of hemp varieties

Decimal Code for growth stages of hemp

New problem plants and weeds in Switzerland – a threat to agriculture and natural areas?

New Swiss cultivars of perennial ryegrass: Cavia, Arvicola, Lacerta

The use of silage additives in pressed pulp silage

The use of silage additives in pressed pulp silage

Recommended vitamin A, E an D for piglets

Efficacy of orally administered iron methionine and iron dextran in newborn pigs

The future of the horticultural sector in the Lake of Constanze region

Technology – Early Recognition

Control of seed-borne snow mould (Gerlachia nivalis) of winter wheat with warm water

Control of Septoria tritici based on ELISA-thresholds

Market demands on Golden Delicious Apples

High pressure treatment of whipped cream

Label production in Switzerland and beef quality

Effects of production factors on the quality of beef