Water hardness determination using local laundry bar soaps for carp hatcheries.
MetadataPerlihat publikasi penuh
A simple method using local laundry soap is described for carp hatchery operation. A saturated soap solution was prepared and uses to titrate a 100-ml water sample of known hardness until a permanent lather appeared on the surface of the sample. The volume of soap solution was recorded to correspond to the hardness level tested. A fish farmer’s guide on the approximate levels of water hardness using WHEEL or PERLA soap solution is provided.
Suggested CitationFerriols-Pavico, J. Ma., Aralar, E. V., & Gonzal, A. C. (1988). Water hardness determination using local laundry bar soaps for carp hatcheries.
- AQD 
Showing items related by title, author, creator and subject.
Optimum dietary protein level for growth of bighead carp (Aristichthys nobilis) fry in a static water system Santiago, Corazon B.; Reyes, Ofelia S. (Elsevier, 1991)Isocalric diets (290 kcal digestible energy/100 g) with protein levels ranging from 20 to 50% in increments of 5% were fed to bighead carp fry (3.8±0.2 mg mean body weight and 9.8±0.1 mm total length) for 7 weeks. Growth ...
The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs Gonzal, Angelito C.; Aralar, Emiliano V.; Pavico, Josefina Ma. F. (Elsevier, 1987)An investigation was conducted to establish water hardness concentration for optimum hatching of silver carp (Hypophthalmichthys molitrix) eggs. Eggs were incubated for 19 h at 26.5°C at six levels of water hardness: 100, ...
Tabbu, Marlo Y.; Lijauco, Melchor M.; Eguia, Ruel V.; Espegadera, Corazon C. (Fisheries Research Society of the Philippines, 1986)Increasing fish production through polyculture was clearly demonstrated to the fishfarmers in Laguna lake. The rearing of different species of fish of proper number and species combinations had resulted to the efficient ...