{"title":"发酵木薯皮粕对克拉丽丝虫生长的影响","authors":"A. A. Adewumi","doi":"10.31248/JBBD2018.070","DOIUrl":null,"url":null,"abstract":"An experiment was conducted to evaluate the impact of cassava (Manihot esculenta, (NR 8082) peel, fermented with wastewater from the fermented cassava pulp, as a substitute for maize in the diet of C. gariepinus juveniles on the growth performance of C. gariepinus. Five iso-caloric and iso-nitrogenous diets were formulated containing 25%, 50%, 75% and 100% maize replacement with cassava peel meal (tagged diets B25, C50, D75, E100). The control was tagged diet A0. Two sets of experiment were designed using the formulated diets. One set, which lasted for 10 days, was designed to monitor the apparent protein digestibility of the diet and the second one to evaluate the growth, nutrient utilization (MWG, FCR, SGR) and the biochemical composition of the fillets of the fish, fed for a period of 8 weeks, in the laboratory. Fermentation significantly reduced (p 0.05) higher than those of the fish fed diets B25 and C50, but were significantly (P 0.05) from one another. The results revealed that 50% replacement of maize with cassava peel meal (diet C50) can be tolerated by C. gariepinus, without compromising growth, nutrient utilization and digestibility. The percentage survival of the fish fed the control, test diets B25, C50 and D75 were not significantly different (p>0.05) but were significantly different from those fish fed diet E100. It can be concluded that replacing maize with up to 50% replacement level of cassava peels fermented with wastewater from the fermented cassava pulp is not deleterious to growth and nutrient utilization of C. gariepinus. Fermentation might have thus reduced the toxicity and increased the nutrient value of the cassava peels, otherwise regarded as agricultural wastes, and placed it among basal feedstuffs, suitable for replacing maize in C. gariepinus diet.","PeriodicalId":15121,"journal":{"name":"Journal of Bioscience and Biotechnology Discovery","volume":"32 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluation of fermented cassava (Manihot esculenta) peel meal on the growth of Clarias gariepinus\",\"authors\":\"A. A. Adewumi\",\"doi\":\"10.31248/JBBD2018.070\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An experiment was conducted to evaluate the impact of cassava (Manihot esculenta, (NR 8082) peel, fermented with wastewater from the fermented cassava pulp, as a substitute for maize in the diet of C. gariepinus juveniles on the growth performance of C. gariepinus. Five iso-caloric and iso-nitrogenous diets were formulated containing 25%, 50%, 75% and 100% maize replacement with cassava peel meal (tagged diets B25, C50, D75, E100). The control was tagged diet A0. Two sets of experiment were designed using the formulated diets. One set, which lasted for 10 days, was designed to monitor the apparent protein digestibility of the diet and the second one to evaluate the growth, nutrient utilization (MWG, FCR, SGR) and the biochemical composition of the fillets of the fish, fed for a period of 8 weeks, in the laboratory. Fermentation significantly reduced (p 0.05) higher than those of the fish fed diets B25 and C50, but were significantly (P 0.05) from one another. The results revealed that 50% replacement of maize with cassava peel meal (diet C50) can be tolerated by C. gariepinus, without compromising growth, nutrient utilization and digestibility. The percentage survival of the fish fed the control, test diets B25, C50 and D75 were not significantly different (p>0.05) but were significantly different from those fish fed diet E100. It can be concluded that replacing maize with up to 50% replacement level of cassava peels fermented with wastewater from the fermented cassava pulp is not deleterious to growth and nutrient utilization of C. gariepinus. Fermentation might have thus reduced the toxicity and increased the nutrient value of the cassava peels, otherwise regarded as agricultural wastes, and placed it among basal feedstuffs, suitable for replacing maize in C. gariepinus diet.\",\"PeriodicalId\":15121,\"journal\":{\"name\":\"Journal of Bioscience and Biotechnology Discovery\",\"volume\":\"32 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-10-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Bioscience and Biotechnology Discovery\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31248/JBBD2018.070\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Bioscience and Biotechnology Discovery","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31248/JBBD2018.070","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
采用木薯浆发酵废水发酵木薯(Manihot esculenta, NR 8082)果皮,研究了木薯皮替代玉米对黑黑鱼幼鱼生长性能的影响。用木薯皮粉代替25%、50%、75%和100%的玉米,配制5种等热量、等氮饲粮(标记为饲粮B25、C50、D75、E100)。对照组标记为饮食A0。采用所配制的饲粮设计了两组试验。一组试验期为10 d,用于监测饲料中蛋白质表观消化率;另一组试验期为8周,用于评价鱼的生长、营养物质利用率(MWG、FCR、SGR)和鱼片的生化组成。发酵水平显著降低(p 0.05)高于饲料B25和C50,但两者之间差异显著(p 0.05)。结果表明,木薯皮粕替代50%玉米(C50),在不影响生长、养分利用和消化率的情况下,可耐受。对照组、试验饲料B25、C50和D75的成活率差异不显著(p>0.05),但与饲料E100的成活率差异显著(p>0.05)。由此可见,以木薯浆发酵废水发酵后的木薯皮替代50%水平的玉米对肉苁茸的生长和养分利用均无不良影响。因此,发酵可以降低木薯皮的毒性,提高其营养价值,否则将其视为农业废物,并将其作为基础饲料,适合替代玉米。
Evaluation of fermented cassava (Manihot esculenta) peel meal on the growth of Clarias gariepinus
An experiment was conducted to evaluate the impact of cassava (Manihot esculenta, (NR 8082) peel, fermented with wastewater from the fermented cassava pulp, as a substitute for maize in the diet of C. gariepinus juveniles on the growth performance of C. gariepinus. Five iso-caloric and iso-nitrogenous diets were formulated containing 25%, 50%, 75% and 100% maize replacement with cassava peel meal (tagged diets B25, C50, D75, E100). The control was tagged diet A0. Two sets of experiment were designed using the formulated diets. One set, which lasted for 10 days, was designed to monitor the apparent protein digestibility of the diet and the second one to evaluate the growth, nutrient utilization (MWG, FCR, SGR) and the biochemical composition of the fillets of the fish, fed for a period of 8 weeks, in the laboratory. Fermentation significantly reduced (p 0.05) higher than those of the fish fed diets B25 and C50, but were significantly (P 0.05) from one another. The results revealed that 50% replacement of maize with cassava peel meal (diet C50) can be tolerated by C. gariepinus, without compromising growth, nutrient utilization and digestibility. The percentage survival of the fish fed the control, test diets B25, C50 and D75 were not significantly different (p>0.05) but were significantly different from those fish fed diet E100. It can be concluded that replacing maize with up to 50% replacement level of cassava peels fermented with wastewater from the fermented cassava pulp is not deleterious to growth and nutrient utilization of C. gariepinus. Fermentation might have thus reduced the toxicity and increased the nutrient value of the cassava peels, otherwise regarded as agricultural wastes, and placed it among basal feedstuffs, suitable for replacing maize in C. gariepinus diet.