Duckweeds as Nutrients for Koi Fish
Duckweeds have been fed to animals and fish to complement diets, largely to provide a protein
of high biological value. Fish production can be stimulated by feeding duckweed to the extent
that yields can be increased from a few hundred kilograms per hectare/year to 10 tonnes/ha/year.
Mature poultry can utilise duckweed as a substitute for vegetable protein in cereal grain based
diets whereas very young chickens suffered a small weight gain reduction by such substitution.
Pigs can use duckweed as a protein/energy source with slightly less efficiency than soyabean
meal.
Little work has been done on duckweed meals as supplements to forages given to ruminants, but
there appears to be considerable scope for its use as a mineral (particularly P) and N source. The
protein of duckweeds requires treatment to protect it from microbial degradation in the rumen in
order to provide protein directly to the animal.
The combination of crop residues and fresh duckweeds in a diet for ruminants appears to provide
a balance of nutrients capable of optimising rumen microbial fermentative capacity. These diets
can, therefore, be potentially exploited in cattle, sheep and goat production systems particularly
by small farmers in tropical developing countries.
Surprisingly, the fronds of duckweed are a great source of protein! Prized pond fish, including
koi and goldfish, will happily consume duckweed. These fish can be used to control the coverage
of duckweed, which they can shift to as one of their primary sources of nutrition if feeding times
are reduced.
Leng R A, Stambolie J H and Bell R 1995: Duckweed - a potential high-protein feed
resource for domestic animals and fish. Livestock Research for Rural Development. Volume 7, Article
#5. Retrieved October 10, 2022, from http://www.lrrd.org/lrrd7/1/3.htm
Aratilis Leaves (M. Calabura Leaves) as Treatment
for Fungal Dermatitis among Dogs
Study of various extracts of M. calabura leaves showed potential antifungal property with the
presence of more potent polar antifungal compounds.
Utilization of Rice Husk for the Production of Liquid
Smoke Disinfectant
Rice husk liquid smoke has multifunctional properties such as antioxidant, anti- inflammatory,
antidiabetic and antimicrobial. With this premise, this study will be conducted to determine if
liquid smoke from rice husk is an effective disinfectant comparable to commercial disinfectant.
Since it is organic prepared, the researcher would like to determine its chemical structure and
biological activity.
Duckweeds as Nutrients for Koi Fish
If the amount of the duckweeds is increased, then the health status of the
koi fish will be longer.
Dependent variables: Health status of the koi fish
Independent variables: Amount of duckweeds
Aratilis Leaves (M. Calabura Leaves) as Treatment
for Fungal Dermatitis among Dogs
If the amount of aratilis leaves is increased then the fungal infection of
dogs will heal faster.
Dependent variables: Healing rate on fungal infection
Independent variables: Aratilis leaves
Utilization of Rice Husk for the Production of Liquid
Smoke Disinfectant
If the amount of rice husk liquid smoke disinfectant is increased, then
the number of bacteria killed will increased.
Dependent variables: Number of bacteria killed
Independent variables: Amount of rice husk liquid smoke disinfectant