Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

culture media --- Microbiology --- Chemical reagents

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The purpose of this Test Guideline is to determine the effects of a substance administered with food to birds. Birds are fed a diet containing the test substance at a range of concentrations for a period of five days. Two control groups and one treatment group for each of the, at least, five dietary levels of the test substance should be used. Each group consists of 10 birds. The minimum duration of the test is eight days: five days on the test diet followed by a minimum of three days on normal diet. Suitable facilities for holding birds indoors are necessary. These include mechanisms for temperature, humidity and light control as required, as well as pens of suitable capacity for rearing the birds. Mortalities and signs of toxicity are recorded daily. The following observations should be made during the test: signs of intoxication and other abnormal behaviour; mortality; body weights; food consumption.

Chemical tests and reagents --- Chemical reagents --- Reagents, Chemical --- Indicators and test-papers

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The purpose of this Test Guideline is to determine the effects on the reproduction of a substance administered with food to birds.Birds are fed a diet containing the test substance in various concentrations for a period of not less than 20 weeks. A minimum of three dietary concentrations of the test substance is required. The maximum recommended test concentration is 1000 ppm. Birds may be kept in pens as pairs (at least 12 pens per test group) or as groups of one male and two or three females (at least 8-12 pens per group). Birds are induced, by photoperiod manipulation, to lay eggs. Eggs are collected over a ten-week period, artificially incubated and hatched, and the young maintained for 14 days. Suitable facilities for rearing birds, preferably indoors, are necessary. Mortality of adults, egg production, cracked eggs, egg shell thickness (at least two eggs from each pen), viability, hatchability and effects on young birds are observed during the study.

Chemical tests and reagents --- Chemical reagents --- Reagents, Chemical --- Indicators and test-papers

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Flotation reagents --- Flocculants --- Ore-dressing --- Congresses --- Flotation reagents - Congresses --- Flocculants - Congresses --- Ore-dressing - Congresses

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Le but de cette Ligne directrice est de déterminer les effets sur la reproduction d'une substance administrée avec de la nourriture aux oiseaux. Des oiseaux sont alimentés par un régime contenant la substance d'essai à différentes concentrations pendant une période de moins de 20 semaines. Un minimum de trois concentrations alimentaires de la substance d'essai est exigé. La concentration maximum d'essai recommandée est de 1000 ppm. Les oiseaux peuvent être répartis dans les cages, soit en couple (au moins 12 cages par groupe d'essai), soit un mâle et deux ou trois femelles (au moins 8-12 cages par groupe) Les oiseaux sont amenés, par modification de la photopériode, à pondre des oeufs. Les oeufs sont rassemblés sur une période de dix semaines, artificiellement incubés et éclosent, et les jeunes sont élevés pendant 14 jours. Les équipements appropriés pour élever des oiseaux, de préférence en local clos, sont nécessaires. On observe la mortalité des adultes, la production d'oeufs, les oeufs fêlés, l'épaisseur de la coquille (au moins deux oeufs de chaque cage), la viabilité, l’éclosabilité et les effets sur de jeunes oiseaux pendant l'étude.

Environment --- Chemical tests and reagents --- Birds --- Aves --- Avian fauna --- Avifauna --- Wild birds --- Amniotes --- Vertebrates --- Ornithology --- Chemical reagents --- Reagents, Chemical --- Indicators and test-papers