Preliminary observations on the diel feeding patterns of Nile tilapia Oreochromis niloticus (L.) in Laguna de Bay, Philippines, with the aid of the computer model MAXIMS
Share
Abstract
Nile Tilapia, Oreochromis niloticus, cultured in cages in Laguna de Bay, were sampled on two occasions in 1995, each time over a 24-hour cycle. The weights of stomach content were averaged and analysed with the computer model MAXIMS. The model predicted that, in May, larger fish feeding on natural food alone fed continuously from dawn to dusk, ingesting 4.9 to 5.4% of their body weight (wet weight basis) whereas smaller fish had two feeding periods per day, from sunrise to mid-morning and again from mid-afternoon until after sunset, ingesting between 13.0 and 13.7%. In August, fish were given supplemental feed that ran out around mid-day, after which they continued to ingest natural food. The fish ingested 3.8 to 4.0% supplemental feed and 4.4 to 4.7% natural food per day. In May, most of the stomach contents consisted of the blue-green alga Anabaena spiroides, whereas in August, the natural food was made up principally of detritus. On the basis of these findings, it is recommended that supplemental feed be given in several doses spread throughout the day.
Description
Abstract only.
Suggested Citation
Richter, H., Focken, U., Becker, K., Santiago, C. B., & Afuang, W. B. (2001). Preliminary observations on the diel feeding patterns of Nile tilapia Oreochromis niloticus (L.) in Laguna de Bay, Philippines, with the aid of the computer model MAXIMS (Abstract only). In C. B. Santiago, M. L. Cuvin-Aralar, & Z. U. Basiao (Eds.), Conservation and Ecological Management of Philippine Lakes in Relation to Fisheries and Aquaculture (p. 160). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center; Los Baños, Laguna, Philippines: Philippine Council for Aquatic and Marine Research and Development (PCAMRD), Department of Science and Technology; Quezon City, Philippines: Bureau of Fisheries and Aquatic Resources (BFAR), Department of Agriculture, Quezon City, Philippines.
Subject
Related items
Showing items related by title, author, creator and subject.
-
Fish nutrition
Carreon-Lagoc, Julia; Southeast Asian Fisheries Development Center, Aquaculture Department (Aquaculture Department, Southeast Asian Fisheries Development Center, 1989) -
Nursery culture of mud crab, Scylla serrata, using different ratios of natural food to formulated feed
Alava, Veronica R.; Sumile, Jony D.; Parado-Estepa, Fe D. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2017)The effect of feeding different ratios of natural food to formulated feed on the production and profitability of Phases 1 and 2 of nursery culture (3 weeks per phase) of hatchery-produced crab Scylla serrata was investigated. ... -
Management of feeding aquaculture species
Alava, Veronica R. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2002)This chapter teaches the reader to: differentiate the different feeding strategies in pond culture; learn feeding management methods such as stock sampling and record keeping, calculating daily feed ration, choosing ...