Site pages
Current course
Participants
General
Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
Topic 6
Topic 7
Topic 8
Topic 9
Topic 10
Topic 11
Topic 12
Topic 13
Topic 14
Topic 15
Topic 16
Topic 17
Topic 18
Topic 19
Topic 20
Topic 21
Topic 22
Topic 23
Topic 24
Topic 25
Topic 26
Topic 27
Topic 28
Topic 29
Topic 30
Topic 31
Topic 32
Preparation of Infusoria
AIM To prepare a culture of infusoria. MATERIALS REQUIRED Containers,raw materials (potato,carrot and cabbage),mosquito net PROCEDURE Thoroughly clean the container and keep it in a cool place where natural light is available. Fill the container with 40L of fresh water preferably pond water. Immerse any one of the hand full of raw material (potato, carrot, cabbage or straw) Cover the container with mosquito net cloth to avoid flies and mosquites. Leave the container undisturbed for 2 - 3 days The water terms milky and emit foul smell in 2-3 days. A film of slim will form on the water surface. In about 4 - 5 days water turns clear and become transparent with a light yellow colour, which is because of floating spores of infusoria that have settled on water. INFERENCE |