Title: Effect of Different Feed Ingredients and Low Temperature on Diet Acceptability, Growth and Survival of Mrigal, Cirrhinus mrigala, Fingerlings
Abstract: Studies were conducted to investigate the possibility of partial or total replacement of fish meal with cheaper plant protein sources in the artificial diets for mrigal fingerlings. Second objective of these studies was to find if winter feeding could have an effect on growth of fish. There were four diet formulations. Diet 1 contained 45% fish meal and served as reference diet. Fish meal in the rest of the diets was substituted by sesame oil cake, mustard oil cake and blood meal. All the diets contained approximately 30% protein. In the first week of December mrigal fingerlings were collected from Hatchery ponds and weighed which averaged 3.897±5.516 - 4.267±3.559 g each. They were acclimatized to experimental environment for two weeks. Ten individuals were then randomly stocked in each fiber glass tank. Each dietary group had two replicates. Prepared feeds were offered @1.5% of fish wet biomass from December, 22 to February, 22. After two months of feeding, experiment was terminated. Tank water was completely drained. Fish were harvested and weighed individually. Growth of fish showed no significant differences among treatments. Rather group fed on sesame oil cake based diet grew comparatively better indicating strong possibility of total or major portion of fish meal replacement in mrigal diets. Secondly it was observed that fish did show growth during winter months and this growth increment can compensate its inherited slow growth capability, compared to other Indian major carps, to some extent, if fed properly during colder months.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 10
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