Growth Performance of Mahseer Fingerlings (Tor soro) Fed Potassium Diformate Added Diets (original) (raw)
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Asian Journal of Fisheries and Aquatic Research, 2020
This study was purposed to determine the optimal dose addition of potassium diformate to commercial feed to increase the growth of giant freshwater shrimp. The method employed in this study was an experimental method, embracing application of a Randomized Block Design (RBD) method. It consists of four treatments and four replications. The treatments was based on the difference of potassium diformate amount in which given to giant freshwater shrimp. The difference of potassium diformate amount was 0% (control), 1%, 3%, and 5%. The sample of study used giant freshwater shrimp with a length of 4 - 6 cm. The samples were obtained from the Giant freshwater Shrimp Breeding Center, Pamarican, West Java Province. The shrimp were kept in 16 nets in a density of 20 shrimps and the size of the net cage is about 1 m3. The parameters observed in this research were daily growth rate, feed efficiency, the relation between length and weight, survival rate (analyzed using ANOVA with p < 0,05), an...
Aquaculture Studies
This study was conducted to evaluate the feed utilization and protein effect ratios of combined and single diet administration of potassium di formate (KDF) in juvenile rainbow trout (Oncorhynchus mykiss). 600.000 trout fry were stocked as 50.000 in each cage and were fed 3 meals a day in the range of 25-80 grams and two meals a day up to 80-250 grams (until harvest time) and fed with commercial feeds until satiation. 3 kg/ton (T1), 5kg/ton (T2) and 7 kg/ton (T3) KDF were added to the diets and given to fish for 11 months. In the study, when the specific growth rates (SGR) of fish were compared, the results obtained in the T1, T2 and T3 groups were generally higher than in the control group. While no significant difference was found between T1 and T2 groups (p>0.05), there is a significant difference between T3, the other experimental groups and the control (p<0.05). In the study, a significant difference was found between the feed conversion rate (FCR of all groups, (p<0.0...
In the present study, wild caught early fingerlings Milkfish (Chanos chanosForsskål, 1755) (length & weight between of 3.8-6.4cm / 3-8g) average weight 5.35g werereared with different types of treatments for three months(15thNovember-15th February) and their performances in terms of growth and survival were determined. It is observed that upon the harvest the fish reached a weight between24-31g and a survival rate of 80.1±1%,thespecific growth rate was higher (82.8%) in fishes gatheredin the combination of soil & chicken manure (SC), followed bya combination of Urea & chicken manure (UC), and commercial pellets(CP) Control feeds. Survival rate was also higher in SC fishes, followed by UC and CP (control)feed. The size-frequency distribution shows that milkfish in the tank SC grew compared with tank CP specimens, their growth rate was lower. Tanks containing SC treatment had better specific growth rate than CP (control) treatment (p<0.05), although there was no significant differences between SC treatment and UC treatment in growth factors. Also, the number of surviving fish in UC treatment was simply higher than SC treatment and CP (control) (p<0.05). Key Words:Milkfish, Chanos chanos, growth, fingerling
This study was carried out in 12 lab aquariums of 20 litre volume to investigate the effectiveness of four test diets; two formulated and two non-formulated on milkfish growth. The study further investigated the treatment effect on water quality, proximate and chemical characterization of the diets and their digestibility. The intent was to study growth performance of milkfish and the potential of local availability of quality and affordable ingredients. Milkfish juveniles of 6.5 g average weight were stocked at 20 fish per aquaria. All treatments were carried out in triplicate and diets administered at 5% body weight per day for ninety two days. Diet 1 FV consisted of fish meal, rice bran and vitamin and mineral premixes. Diet 2 FW consisted of fish meal and rice bran without vitamin and mineral premix. The non-formulated diets were coconut cake (CC) and maize bran (MB). Feeding the fish on formulated diets resulted in significantly higher mean fish weight gain (P<0.05) than tha...
2016
This study was carried out in 12 lab aquariums of 20 litre volume to investigate the effectiveness of four test diets; two formulated and two non-formulated on milkfish growth. The study further investigated the treatment effect on water quality, proximate and chemical characterization of the diets and their digestibility. The intent was to study growth performance of milkfish and the potential of local availability of quality and affordable ingredients. Milkfish juveniles of 6.5 g average weight were stocked at 20 fish per aquaria. All treatments were carried out in triplicate and diets administered at 5% body weight per day for ninety two days. Diet 1 FV consisted of fish meal, rice bran and vitamin and mineral premixes. Diet 2 FW consisted of fish meal and rice bran without vitamin and mineral premix. The nonformulated diets were coconut cake (CC) and maize bran (MB). Feeding the fish on formulated diets resulted in significantly higher mean fish weight gain (P<0.05) than that...
A review of some fish nutrition methodologies
Bioresource Technology, 2005
Several classical warm blooded animal (poultry, sheep, cows, etc.) methods for dietary nutrients evaluation (digestibility, metabolizablity, and energy budget) are applied to fish, even though fish live in a different environment in addition to being cold blooded animals. These applications have caused significant errors that have made these methods non-additive and meaningless, as is explained in the text. In other words, dietary digestion and absorption could not adequately be measured due to the aquatic environment fish live in. Therefore, net nutrient deposition and/or growth are the only accurate measurement left to evaluate dietary nutrients intake in fish. In order to understand and predict dietary nutrient intake-growth response relationship, several mathematical models; (1) the simple linear equation, (2) the logarithmic equation, and (3) the quadratic equation are generally used. These models however, do not describe a full range of growth and have no biological meaning as explained in the text. On the other hand, a model called the saturation kinetic model. It has biological basis (the law of mass action and the enzyme kinetic) and it describes the full range of growth curve. Additionally, it has four parameters that summarize the growth curve and could also be used in comparing diets or nutrients effect on fish growth and/or net nutrient deposition. The saturation kinetic model is proposed to be adequate for dietary nutrient evaluation for fish. The theoretical derivation of this model is illustrated in the text.
Turk. J. Zool, 2012
A feeding trial was conducted to determine the optimal dietary crude protein requirement for Rutilus frisii kutum fi ngerlings. Five isoenergetic experimental diets were formulated to contain graded levels of protein (32%, 37%, 42%, 47%, and 52%). Triplicate groups of 80 kutum (average weight 0.5 g) were stocked in 250-L tanks and fed to apparent satiation 3 times a day for 8 weeks. Th e results indicate that the growth performance and feed utilization of kutum were signifi cantly (P < 0.05) aff ected by dietary protein level. Th e second polynomial regression of weight gain against protein level yielded an estimated optimal dietary protein requirement of 41.6%. Weight gain, specifi c growth rate, and feed effi ciency increased with increasing the dietary protein level from 32% to 42%, but decreased signifi cantly (P < 0.05) with further increases in dietary protein. Th e protein effi ciency ratio was inversely correlated with dietary protein level. Feed intake was not aff ected (P > 0.05) by dietary protein level. No signifi cant diff erence was found in the whole-body protein, lipid, moisture, or ash contents of fi sh fed the diff erent dietary protein levels. Th e results obtained from this study could be benefi cial in order to formulate artifi cial feed for aquaculture of kutum fi ngerlings.
The objective of present study was to determine the optimum level of papain in the diet of keureling fish (Tor tambra). The complete random design was utilized in this study. Six levels of papain dosage were tested in triplicates, i.e. 0 (control); 17.5 mg kg-1 , 20.0 mg kg-1 , 22.5 mg kg-1 , 25.0 mg kg-1 and 27.5 mg kg-1 of feed. The experimental fish were fed the experimental diet two times a day at 8 AM and 5 PM at feeding level of 5% body weight for 90 days. The Anova test result showed that pa-pain enzyme gave a significant effect on the weight gain, daily growth rate, specific growth rate, survival rate, feed conversion ratio and feed efficiency (P<0.05). The Duncan multi-rage test result showed that the higher values for all measured parameters were obtained at the dosage of 27.5 mg kg-1. Therefore, it is concluded that the optimum dosage of papain enzyme for keureling fish was 27.5 mg kg-1 of feed.
The Egyptian Journal of Aquatic Research, 2017
The effect of dietary organic salt, sodium diformate (NDF), supplementation on growth performance and health status of European seabass (ESB, Dicentrarchus labrax) was investigated. Twelve groups of fish (IBW, 4.75 ± 0.04 g) were fed 4 diets supplemented with: 0, 0.3, 0.4 and 0.5% NDF (assigned as: CTRL, NDF3, NDF4 and NDF5 respectively) for 13 weeks. Results showed a prominent growth promoting effect for the 0.3% NDF diet, which resulted in the highest gain in weight, specific growth rate and feed utilization indices (P < .05) among all treatments. Growth and feed utilization of NDF3 and NDF4 fish groups were significantly improved, whilst those of NDF5 fish were not lower than the respective of control fish. NDF3-fed fish showed significant (P < .05) elevation in leucocytes count, lymphocyte and monocyte percentages, leucocytes phagocytosis (by >3 folds), serum proteins (by 31%) and lysozyme activity (by 13%) in comparison to the controls. Major nutrients and amino acids composition were not significantly (P > .05) altered by diet. These findings suggest the supplementation of 3 g NDF/kg diet as a potent growth and a basal health-promoter for European seabass juveniles.
Dietary krill meal inclusion contributes to better growth performance of gilthead seabream juveniles
Aquaculture Research, 2018
There is a need to find sustainable alternatives to fishmeal (FM) and fish oil (FO) in feed formulations to support the continued growth of aquaculture. FM is mostly produced from mass-caught pelagic species, but the production has been relatively constant for several decades. The aim of this study was to investigate the potential of dietary krill meal (KM) inclusion as a sustainable alternative to FM. In view of that, a feeding trial with gilthead seabream juveniles was conducted to evaluate whether dietary KM at 3%, 6% and 9% inclusion improves growth performance in comparison with a control diet. At the end of the study, fish in the 9% KM group showed significantly higher body weight (32.76 g) compared with fish fed the control diet (30.30 g). Moreover, FM replacement by 9% KM indicated a reduction in the accumulation of lipid droplets in the hepatocytes and around the pancreatic islets. In summary, this study suggests that FM can be reduced in diets for seabream without negatively affecting growth performance, when KM is added. On the contrary, KM enhances gilthead seabream growth and reduces lipid accumulation and damage of hepatocytes, which will open an interesting innovation line to completely replace FM by alternative terrestrial protein sources and the partial inclusion of KM. K E Y W O R D S fishmeal replacement, growth performance, krill meal, seabream juvenile 1 | INTRODUCTION Fishmeal (FM) and fish oil (FO) used to be the principal ingredients in formulated marine species and salmon feeds, but high prices and sustainability concerns have stimulated the search for novel feed ingredients. In 2008, the aquaculture industry used 68% and 88% of the world's production of FM and FO respectively (Tacon & Metian, 2008). The availabilities of FM and FO for feed inclusion are decreasing or at best stagnating (Food of Agriculture Organization of United Nations [FAO], 2016). However, an increase in the size of the global aquaculture industry and the fact that FM production is limited have resulted in raising prices, as high as $2,000 per ton. Therefore, alternative sources of protein and lipids derived from fish are required for the further expansion of aquaculture. FM can be partially replaced in the diets of many fish species, but in most cases, high or complete replacements have detrimental effects mainly due to imbalanced amino acids and the presence of toxins or antinutritional factors. Another key factor is lower feed intake (FI) of fish, because of decreased diet palatability or acceptability as the level of alternative protein sources increases, especially plant proteins