EFFECT OF COTTONSEED MEAL BASED DIETS ON THE PERFORMANCE OF CULTIVABLE FISH
| dc.contributor.advisor | CHAMUNDESWARI DEVI, B (MAJOR) | |
| dc.contributor.advisor | RAVINDRA KUMAR REDDY, D | |
| dc.contributor.advisor | BALASUBRAMANIAN, A | |
| dc.contributor.author | PAVAN KUMAR, B | |
| dc.date.accessioned | 2021-07-15T04:26:52Z | |
| dc.date.available | 2021-07-15T04:26:52Z | |
| dc.date.issued | 2010-09 | |
| dc.description | THESES | en_US |
| dc.description.abstract | Fish nutrition has advanced dramatically in recent years with the development of new, balanced commercial diets that promote optimal fish growth and health. Feed accounts for a major part (30-70%) of the total operation cost of an average fish farm. Traditionally, animal protein sources, particularly fishmeal have been the major ingredient of aqua feeds. Fishmeal is one of the most expensive ingredients in formulated fish feeds. Due to increasing demand, decreasing supply and the high cost of fish meal, fish nutritionists have concentrated their efforts to find alternative protein sources to substitute fish meal in the diet of fish. Thus, cottonseed meal (CSM), a by-product of the cotton fibre and cottonseed oil industries, has been used to replace fish meal partially or totally in fish diets. The present studies were conducted on “Effect of cottonseed meal based diets on the performance of cultivable fish” at College of Fishery Science, Muthukur. Cottonseed meal was used in the diets at four different levels 5%, 10%, 15% or 20%. Control diet was prepared with soybean meal (SBM), groundnut cake (GNC) and deoiled rice bran (DOB). All the formulated diets were isonitrogenous with 30% crude protein. Proximate composition and mineral composition of diets were analyzed by AOAC (1995) methods. Each diet was fed to catla and rohu in triplicate aquaria twice daily at 5% average body weight of the fish for three months for determination of growth response and survivability. Fortnightly sampling was done for the estimation of the water quality parameters and growth parameters [growth, percentage of survival, feed conversion ratio (FCR), protein efficiency ratio (PER) and condition factor (K)]. Specific growth rate (SGR) and Hepatosomatic index (HSI) were estimated at the end of the experiment. Histopathological studies on liver of experimental fishes were conducted at the end of the experiment. Fishes were analyzed for proximate and mineral composition at the beginning as well as at the end of the experiment Significant difference was observed in growth, FCR, PER and K in both rohu and catla. Mortality was observed in catla. However, no mortality was observed in survival of rohu. Inclusion levels of CSM at 15 or 20% resulted in histopathological changes in the liver of both rohu and catla. Carcass composition was observed to be better at CSM10 and CSM5 in rohu and catla respectively. Better growth performance was observed at 5% CSM level of inclusion in catla. However, no significant differences were observed in the growth, survival and condition factor at inclusion level of 5% and 10% CSM in catla. Better performance was observed at 10% CSM level in rohu. Hence, it can be recommended that CSM can be included at 10% level in the diets of catla and rohu. Further inclusion of CSM results in growth depression. | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810170530 | |
| dc.keywords | COTTONSEED MEAL; DIETS; CULTIVABLE FISH; PERFORMANCE | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 136 | en_US |
| dc.publisher | SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA | en_US |
| dc.sub | Aquaculture | en_US |
| dc.theme | EFFECT OF COTTONSEED MEAL BASED DIETS ON THE PERFORMANCE OF CULTIVABLE FISH | en_US |
| dc.these.type | M.F.Sc | en_US |
| dc.title | EFFECT OF COTTONSEED MEAL BASED DIETS ON THE PERFORMANCE OF CULTIVABLE FISH | en_US |
| dc.type | Thesis | en_US |