STUDIES ON THE EFFECTS OF DIFFERENT DIETARY PROTEIN SOURCES ON THE GROWTH, SURVIVAL AND CARCASS COMPOSITION OF RED-BELLIED PACU, PIARACTUS BRACHYPOMUS (CUVIER, 1818)
| dc.contributor.advisor | Ravindra Kumar Reddy, D (Major) | |
| dc.contributor.advisor | Haribabu, P | |
| dc.contributor.advisor | Sudhakar, O | |
| dc.contributor.author | JHANSI LAKSHMI BAI, T.Ch | |
| dc.date.accessioned | 2016-12-19T15:52:54Z | |
| dc.date.available | 2016-12-19T15:52:54Z | |
| dc.date.issued | 2014-07 | |
| dc.description | DEPARTMENT OF AQUACULTURE , COLLEGE OF FISHERY SCIENCE, MUTHUKUR - 524 344 , SRI VENKATESWARA VETERINARY UNIVERSITY , TIRUPATI - 517 502 | en_US |
| dc.description.abstract | ABSTRACT: The present study “Studies on the effect of different dietary protein sources on growth, survival and carcass composition of red-bellied pacu [Piaractus brachypomus (cuvier, 1818)]. Experiment was conducted in the Wet Laboratory of the Department of Aquaculture, College of Fishery Science, Sri Venkateswara Veterinary University, Muthukur. Groundnut Cake (GNC), Fishmeal (FM) and Cottonseed meal (CSM) were used at three different protein levels (20%, 25% and 30%). Diets were prepared by mixing all the ingredients in required proportions, ground and sieved to the required size and made in to pellets. Studies were conducted to compare the performance of pacu fed on different experimental diets for growth, survival and proximate composition of Piaractus brachypomus. The experiments were conducted for 90 days in aquaria. Triplicates were maintained for each of the treatment. Feed was given two times a day. Sampling for every 10 days was done for water quality parameters viz., pH, Temperature, Dissolved Oxygen (DO), Total alkalinity and Total hardness. The growth, survival and feed conversion ratio were estimated by sampling the fish once in 10 days. At the beginning and after completion of the experiment, proximate composition of the animals was carried out. Regular monitoring of water quality parameters revealed that, the experimental diets with different ingredients had no influence on the quality of water. The DO was found to be in the range of 5.72ppm and 6.69ppm. The pH ranged from 7.6 to 8.1 during the period of experiment. There was no effect on total alkalinity. The range of total alkalinity varied between 260 mg/l to 271 mg/l. Total hardness of water ranged between 222 mg/l and 239 mg/l. The growth performance of P. brachypomus was found to be best when fed with diet FM25 (126.50gm) and the least with GNC20 (117.13gm). P. brachypomus fed on diet CSM25 showed the highest average weight gain of 17.42gm by the 90th day, while the GNC20 recorded the lowest weight gain of all the treatments (10.561gm). Specific growth rate was highest (5.50) in pacu fed with diet FM30, and least (5.25) in the GNC20. Survival rates were best in pacu fed on all the treatment, which showed 100% survival rate at the end of the experiment except on GNC20 and CSM20 (90%). The pacu fed on CSM30 diet showed the best FCR of 3.89, followed by GNC30 with an FCR of 3.97. The pacu fed with CSM25 showed the least response with an FCR of 4.42. Carcass composition of P. brachypomus showed, the highest protein content in shrimps fed with FM30 diet (61.3%). Lowest protein was found in initial sampling (55.5%). Highest ether extract was recorded in initial sampling fed (19.58%). Lowest ether extract was found in FM30 (19.10%). Ash content was high in fish fed with FM20 and FM30 diet (17.3%) and low during initial sampling (17.08%). From the above studies, it can be concluded that Cottonseed meal and Groundnut cake can be included in the diets of P. brachypomus at an optimum level of 25%. Though survival and growth in Fishmeal fed fishes was good, it is not economically viable while comparing with cottonseed meal and groundnut cake for pacu fishes. The present study suggests that, during the juvenile stages of P. brachypomus culture, use of fishmeal improved the survival rate, showing good growth, with less FCR. But, in terms of cost, Fishmeal is costlier than Cottonseed meal and Groundnut meal. Therefore, it is suggested to use Fishmeal during early stages up to 40 days of fish culture for better survival rate and later the fish may be fed with cottonseed meal to increase the profits to the farmers. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/91122 | |
| dc.language.iso | en | en_US |
| dc.publisher | SRI VENKATESWARA VETERINARY UNIVERSITY , TIRUPATI - 517 502 , A.P | en_US |
| dc.sub | Fisheries | en_US |
| dc.subject | RED-BELLIED PACU; PIARACTUS BRACHYPOMUS; PROTEIN SOURCES; FISH NUTRITION | en_US |
| dc.title | STUDIES ON THE EFFECTS OF DIFFERENT DIETARY PROTEIN SOURCES ON THE GROWTH, SURVIVAL AND CARCASS COMPOSITION OF RED-BELLIED PACU, PIARACTUS BRACHYPOMUS (CUVIER, 1818) | en_US |
| dc.title.alternative | MFSc;CFSc;MTKR;Acc No; TH23 | en_US |
| dc.type | Thesis | en_US |