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Assessment of Feeding Rate and Frequency in Chinese Grass Carp (Ctenopharyngodon idella) Using Three Different Formulated Fish Diets

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Author: MUNAZZAH NAWAZ

Citable URI : https://vspace.vu.edu.pk/detail.aspx?id=185

Publisher : Virtual University

Date Issued: 2/22/2019 12:00:00 AM

Abstract

Grass carp, Ctenopharyngodon idella is one of the most popular species of aquaculture as it has ability to convert plant material into good quality protein. As feeding expenses of aquaculture is 60% of total expenses, many researchers have tried to cut down the feeding expenses of fish by using cheap and waste raw material as fish feed. In this study a comparison of growth of grass carp was made by using rice bran. Grass carp fry were obtained from hatchery and these were kept in steel tanks for 15 days for acclimatization to experimental conditions before start of experiment. During this period they were given mixture of fish meal and rice bran in 30% and 35% proportion. Experiment was conducted using three types of diets. One simple fish meal, second fish meal and 30%rice bran and third a mixture of fish meal and 35% rice bran. These diets were available to the three groups of fish round the clock. Growth was checked by netting 50% or more than 50% of fish from each tank. Fish were weighed in bulk every fortnight. After every sampling 50% water in each tank was replaced with fresh water. Following parameters were checked (1) mean weight increase, (2) body weight gain (3) specific growth rate. At the end of experiment fish from three groups were killed and their body composition was checked for water, % protein % fat, % organic content wet and dry. According to results fish meal with 35% rice bran gave maximum growth in fish.


URI : https://vspace.vu.edu.pk/details.aspx?id=185

Citation: Nawaz, M(2018). Assessment of Feeding Rate and Frequency in Chinese Grass Carp (Ctenopharyngodon idella) Using Three Different Formulated Fish Diets. Virtual University of Pakistan.(Lahore, Pakistan).

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