scholarly journals Modified photoperiods and light intensities for grow-out production of nile tilapia (O. niloticus) under indoor tank culture system

2018 ◽  
Vol 192 ◽  
pp. 03011
Author(s):  
Marvin Cinense ◽  
Ireneo Agulto ◽  
Armando Espino ◽  
Romeo Gavino ◽  
Emmanuel Sicat ◽  
...  
Keyword(s):  
Water Quality ◽  
Light Intensity ◽  
Growth Performance ◽  
Culture System ◽  
High Water ◽  
Control Treatment ◽  
Feed Conversion ◽  
Tank Culture ◽  
Light Intensities ◽  
Set Up

The study aimed to evaluate the effect of modified photoperiods and light intensities on grow-out production of tilapia under indoor tank culture system; specifically on water quality and on growth performance of tilapia. The study was conducted inside the greenhouse and considered two factors: photoperiod (24L:0D, 20L:4D and 16L:8D); and light intensity (40 watts m-2, 60 watts m-2 and 80 watts m-2); also, a control treatment was set-up outside the greenhouse to receive the normal environmental condition. Light manipulations inside the greenhouse were able to sustain the water quality within the desirable level for tilapia cultured in tank; while control tanks shows high water quality variation. Growth performance of tilapia cultured in tank responds positively in prolonged photoperiod at different light intensities. However, light manipulation gave insignificant difference on feed conversion ratio and survival rate compared to normal condition. Results indicated that 20-hours photoperiod and 40 watts m-2 light intensity is just enough to sustain the recommended water quality and better growth performance of the cultured tilapia in indoor tank system. It can be concluded that longer photoperiod and restrained light intensity can improved the growth performance of tilapia under indoor tank culture.

scholarly journals Effects of C/N Ratio on Water Quality, Growth Performance, Digestive Enzyme Activity and Antioxidant Status of Nile tilapia Oreochromis niloticus (Linnaeus, 1758) in Biofloc Based Culture System

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Ammar Dilmi ◽  
Wahid Refes ◽  
Abdellah Meknachi
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Culture System ◽  
Antioxidant Status ◽  
Digestive Enzyme ◽  
Quality Parameters ◽  
Clear Water ◽  
Feed Conversion ◽  
Low Weight ◽  
Nile Tilapia Oreochromis Niloticus

A 62-d trial was conducted to evaluate the effects of different C/N ratios on water quality, growth performance, digestives activity, and antioxidant indicators of tilapia fingerlings in BFT systems. Three biofloc treatments (added molasses) with a C/N ratio of 14 (BFT14), 17 (BFT17), and 20 (BFT20) were tested against control in clear-water, each treatment in triplicate. Four hundred twenty tilapias (24.2±0.1 g) were distributed on 12 tanks of 350 L. The dynamics of water quality parameters showed a shift from a predominantly autotrophic to a predominantly heterotrophic biofloc with an increase in the C/N ratio from 14 to 20. The growth and Feed conversion of tilapia were not significantly different between the control, BFT14, and BFT17 groups. A low weight gain and high FCR were found in the BFT20 treatment (0.61±0.07 and 1.11±0.12 g/d) compared to the control (0.84±0.05 and 1±0.07 g/d). Activities of proteases and alpha-amylase in the liver and digestive tract were similar in all treatments. As a measure of stress, CAT and SOD activities did not differ significantly among the four groups. Overall, it was possible to reduce the C/N ratio to14, without negatively affecting the biofloc development, growth performance, and physiological parameters of juvenile tilapia.

scholarly journals The affection of fine bubbles (FBs) aplication on growth, feed efficiency of striped catfish, Pangasianodon hypophthalmus (Sauvage, 1878) and water quality in aquaponic system

2021 ◽  
Vol 21 (3) ◽  
pp. 277-290
Author(s):  
Yuli Andriani ◽  
Zahidah Zahidah ◽  
Rosidah Rosidah ◽  
Iskandar Iskandar
Keyword(s):  
Water Quality ◽  
Feed Efficiency ◽  
Suitable Condition ◽  
Plant Productivity ◽  
Quality Parameters ◽  
Control Treatment ◽  
Average Weight ◽  
Feed Conversion ◽  
Pangasianodon Hypophthalmus ◽  
Randomized Design

This research aims to determine the effect of fine bubble technology with different pressures on Siamese catfish seed's growth and feed efficiency in an aquaponic system. This research used a completely randomized design with four treatments and three replications. Treatment A (Control), Treatment B (FBs with a pressure of 4.5 atm), Treatment C (FBs with a pressure of 5 atm and treatment D (FBs with a pressure of 5.5 atm). The parameters observed were Specific Growth Rate, Feed Conversion Ratio, water quality (temperature, pH, DO, and ammonia), and plant productivity.  The seeds used were catfish seeds aged 16-36 days, 1-2 inches long, and weighed 0.26-0.29 grams. The container used is a fiber tub of 16 units with a size of 70 cm x 70cm x 70 cm. The feed used is commercial feed PF 1000 content crude protein 35%. The data were analyzed using variance with the F test at the 95% confidence level. The best treatment for catfish growth was treatment D (pressure 5.5 atm), which gave the highest SGR value of 7.24 ± 0.5 and FCR value of 1.19 ± 0.09. The value of water quality parameters is in suitable condition for the growth of catfish seed. The best plant productivity was found in treatment D with an average weight of 60.75 g.

scholarly journals The Effect of Replacing Dried Meal Worm with Soybean Meal on Growth Performance and Carcass Characteristics of Broiler Chickens

2021 ◽  
Author(s):  
Navid Naderi Boroojerdi ◽  
Mostafa Rajabzadeh
Keyword(s):  
Growth Performance ◽  
Soybean Meal ◽  
Broiler Chickens ◽  
Relative Weight ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Control Treatment ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Significant Difference

Abstract An experiment was conducted on 240 one-day old male (Ross308) chicken to the effect of substitution of dried mealworm (Tenebrio molitor) with soybean meal on growth performance and carcass characteristics broiler chicks. Chicks fed in a completely randomized design with 4 replicate cages (12 birds per cage). Five dietary treatments used: 1- Control treatment: Basal diet based on corn-soybean meal without adding dried mealworm, 2- Replacement of 5% dried mealworm with soybean meal in the base diet, 3- Replacement of 10% dried mealworm with soybean meal in the base diet, 4- Replacement of 15% dried mealworm with soybean meal in the base diet and 5- Replacement of 20% dried mealworm with soybean meal in the base diet. The results of the experiment showed that 3rd and 4th treatments with a substitution of 10 and 15 percent showed a higher mean weight gain and a daily gain, but their feed intake was lower comparing other treatments, and finally, the feed conversion ratio showed a significant decrease with respect to control treatment using these replacement levels. At 21 and 42 days of age, carcass yield and relative weight of the breasts showed significant increases in treatments 3 and 4, and other characteristics of chicken carcasses were not affected by the test treatments. The experiment showed that replacing soybean meal with 10% and 15% worm powder significantly improved the performance of broiler chickens, but no significant difference was found between the two levels.

Comparative analysis of growth performance, feed utilization, and antioxidant capacity of juvenile mud crab, Scylla paramamosain, reared at two different conditions

Crustaceana ◽  
2021 ◽  
Vol 94 (8) ◽  
pp. 1021-1033
Author(s):  
Cuiying Chen ◽  
Xiaofeng Nie ◽  
Yu Cheng ◽  
Jiajian Shen ◽  
Xianda He ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Growth Performance ◽  
Culture System ◽  
Glutathione Transferase ◽  
Feed Utilization ◽  
Scylla Paramamosain ◽  
Mud Crab ◽  
Tank Culture ◽  
Feeding Experiments ◽  
Total Antioxidant

Abstract This study was carried out to analyse the growth performance, feed utilization, and antioxidant capacity of juvenile mud crab (Scylla paramamosain) reared in two conditions. Here, a new indoor polypropylene tank culture system and a traditional outdoor pond cage facility were used to perform feeding experiments on juvenile crabs. After eight weeks, the survival rate, weight gain, moulting rate and feed efficiency of crabs cultured in polypropylene tanks were markedly higher than those cultured in pond cages. Moreover, the activities of serum acid phosphatase (ACP) and alkaline phosphatase (ALP), and the antioxidant indices including glutathione peroxidase (GSH-PX), glutathione transferase (GST), superoxide dismutase (SOD) and total antioxidant capacity (T-AOC) in hepatopancreas were higher in crabs cultured in the polypropylene tank system than those in pond cages. Based on these results, compared with the traditional pond cages, the polypropylene tank culture system is more suitable for the short-term culture of mud crabs.

Effect of different dietary levels of low-glucosinolate rapeseed (canola) meal and non-starch polysaccharide-degrading enzymes on growth performance and gut physiology of growing turkeys

2013 ◽  
Vol 93 (3) ◽  
pp. 353-362 ◽  
Author(s):  
Zenon Zduńczyk ◽  
Jan Jankowski ◽  
Jerzy Juśkiewicz ◽  
Dariusz Mikulski ◽  
Bogdan A. Slominski
Keyword(s):  
Growth Performance ◽  
Rapeseed Meal ◽  
Ammonia Concentration ◽  
Control Treatment ◽  
Canola Meal ◽  
Feed Conversion ◽  
Degrading Enzymes ◽  
Intestinal Contents ◽  
Small Intestinal ◽  
Gut Physiology

Zduńczyk, Z., Jankowski, J., Juśkiewicz, J., Mikulski, D. and Slominski, B. A. 2013. Effect of different dietary levels of low-glucosinolate rapeseed (canola) meal and non-starch polysaccharide-degrading enzymes on growth performance and gut physiology of growing turkeys. Can. J. Anim. Sci. 93: 353–362. One-day-old male turkey poults were randomly assigned to eight dietary treatments and were fed diets containing 0, 60, 120, or 180 g kg−1of low-glucosinolate rapeseed meal (RSM) from 1 to 56 d of age without or with a commercial non-starch polysaccharide-degrading enzyme product containing pectinase, cellulase, xylanase, glucanase, mannanase and galactanase activities. There were no significant differences (P>0.05) in body weight and feed conversion ratio between the Control soybean meal-based diet and the diets containing RSM. Overall, the inclusion of up to 180 g kg−1of RSM did not affect the growth performance of turkeys. When compared with the Control treatment, the diet with the lowest RSM content increased the pH of the small intestinal contents and the amounts of cecal digesta. The moderate level of RSM also increased the pH of the small intestinal contents although no increase in the cecal digesta contents was noted. In comparison with other treatments, the highest RSM content increased the content of the small intestinal digesta considerably and decreased the pH of the small intestinal contents to that of the Control treatment. All three dietary levels of RSM significantly reduced the activity of bacterial β-glucuronidase in the ceca. Enzyme supplementation tended to reduce ileal viscosity (P=0.079), decreased ammonia concentration, increased the glycolytic activities of the intestinal microflora enzymes α-glucosidase, α-galactosidase, and β-galactosidase, decreased the activity of β-glucuronidase and increased the growth rate of turkeys.

scholarly journals The effect of different types of in ovo selenium injection on the immunity, villi surface area, and growth performance of local chickens

2021 ◽  
pp. 1109-1115
Author(s):  
Rantan Krisnan ◽  
Yuli Retnani ◽  
Budi Tangendjaja ◽  
Rita Mutia ◽  
Anuraga Jayanegara ◽  
...  
Keyword(s):  
Growth Performance ◽  
Surface Area ◽  
Antibody Titer ◽  
Early Growth ◽  
Control Treatment ◽  
Control Group ◽  
Feed Conversion ◽  
In Ovo ◽  
Selenium Yeast ◽  
Local Chickens

Background and Aim: The presence of free radicals may lower chicken's performance. Thus, the antioxidant defense is needed and can be made through a nutritional approach such as selenium supplementation before hatches. This study aimed to investigate the type of selenium that, as an in ovo feeding (IOF) material, can provide the most enhancement of immunity, villi surface area, and early growth performance of local chickens. Materials and Methods: This study, with a completely randomized design, used 480 fertile Kampung Unggul Balitbangtan (KUB, a selected local breed) chicken eggs, with 120 eggs per treatment for four treatments. The four treatments of IOF material included the treatment with organic selenium yeast (SY), organic hydroxy-selenomethionine (HSM), inorganic sodium selenite (SS), and uninjected selenium (control). A solution containing 0.15 ppm of different selenium was injected into the egg amnion after 18 days of incubation. Once hatched, the chicks were placed in three individual cages for each treatment (capacity of eight birds per cage). The parameters observed were the villi surface area, antibody titer, the number of total and differentiated leucocytes, glutathione peroxidase (GSH-Px) activity levels, and growth and feed efficiency of the early growth performance. Results: All the in ovo selenium feeding, except SS, significantly affected the villi surface area, antibody titer, and lymphocyte and heterophil percentages; however, the feedings were still not optimal for enhancing antibody titers and total and differentiated leukocytes. All types of selenium were demonstrated to increase the activity of GSH-Px significantly compared to the control treatment (p<0.05). Furthermore, the daily gain and feed conversion ratio of the groups treated with SY and HSM was significantly improved compared to that of the control group. Conclusion: In ovo SY and HSM improve immunity significantly, villi surface areas and performance. Therefore, both types are the best nutrient ingredients of IOF for building immunity and producing good performance in chickens.

scholarly journals Effect of Garlic Oil Inclusion on Carcass Quality, Growth Performance and Cost Implication of Broiler Chickens

2020 ◽  
pp. 150-154
Author(s):  
Bamigboye Samson. O. ◽  
Oluwafemi R. A. ◽  
Maduekwe Innocent M.
Keyword(s):  
Mortality Rate ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Basal Diet ◽  
Control Treatment ◽  
Carcass Quality ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Cost Implication ◽  
Garlic Oil

This study was carried to evaluate the “Effect of Garlic (Allium sativum) oil inclusion on carcass quality, growth performance and cost implication of broiler chickens”. A total of 180 day–old-(Arboacre) broiler chicks purchased from a reputable hatchery was used in the study which lasted for eight (8) weeks. The birds were divided into four experimental groups; each group was further subdivided into three replicates of fifteen birds per each in a Complete Randomized Design (CRD). The birds were fed on two basal diets (Starter and finisher) in an experiment which lasted for eight weeks. The garlic oil (Allum sativum) was added to the basal diet at (0.00, 0.1, 0.2, 0.3%) level respectively. The treatment were T1, T2, T3, and T4 with T1 serving as control. Growth performance, carcass characteristics, and cost implication were recorded. At the end of the experiment, the birds were slaughtered, dressed to estimate the different parameters. The result showed that the diet with 0.3% garlic oil inclusion had significantly (P<0.5) highest body weight and highest dressing percentage. Control treatment (0.0%) had highest feed intake and best feed conversion ratio. The mortality rate was not affected significantly by the addition of garlic oil in broiler diet. The garlic oil inclusion reduced the mortality rate of the birds, increases productivity and food safety. The result showed on cost implication reveal the economical evaluation of the experiment diets indicated that, the diet with 0.3% level of garlic oil showed the highest profitability ratio as compared to the group. This might be due to the highest return of the weight gains recorded by this group of chicken.

scholarly journals Effects of Feeding Frequency on Growth Performance and Production of Labeo rohita (Hamilton, 1822) Reared in Cage

2021 ◽  
pp. 23-33
Author(s):  
Md. Al-Amin Sarker ◽  
Saleha Jasmine ◽  
Mst. Sultanan Okela
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Growth Performance ◽  
Labeo Rohita ◽  
Cost Benefit ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Average Weight ◽  
Feeding Schedule ◽  
Feed Conversion

Optimum feeding schedule is one of the main things for the proper growth of fish and other animals. A study was conducted to optimize the effects of different feeding frequencies on growth performance and production of Rui (Labeo rohita) under pond cage culture system in Rajshahi, Bangladesh. Labeo rohita with an average weight of 302.23±4.07g (mean ± SD) were randomly stocked in 9 cages at 30 fish/cage in all the treatment. Fish were fed (4% of body weight) a commercial floating feed with three different feeding schedules: feeding of fish thrice daily in T1treatment; twice in T2 treatment and once in T3 treatment. Water quality parameters were measured during the study period. The physico-chemical parameters of pond water were within suitable ranges for fish culture in cages. The obtained values of the water quality parameters were temperature 28.26 to 28.46°C, pH 6.91 to 6.94, DO 5.04 to 5.33 mg/l, CO2 2.95 to 3.02 mg/L. The mean final weight gain was significantly highest in T1 (345.05 g) a followed by T2 (324.66 g) and T3 (257.82 g). The Specific growth rate (SGR) value were significantly higher in T1 treatment (0.91% bwd-1; Body weight per day) than T2 (0.87% bwd-1) and T3 treatment (0.73% bwd-1). The feed conversion ratio (FCR) value was significantly lower in T1 fish group (2.72) than other two T2 (2.84) and T3 (3.44) treatments. The fish productions were 18.13, 17.55 and 15.67 kg/cage/cycle in T1, T2 and T3 respectively. The highest net profit was found (Bangladeshi Taka, BDT 1445.38) in T1 compared to T2 (BDT 1329.24) and T3 treatment (BDT 937.99). The cost benefit ratio (CBR) was significantly higher in T1 (0.57) than T2 (0.53) and T3 (0.37). The feeding schedule three times in a day was most suitable than other two schedules.

scholarly journals Effects of feeding zooplankton, Moina macrocopa (Straus, 1820) on the growth of Nile tilapia Oreochromis niloticus L.

2017 ◽  
Vol 52 (2) ◽  
pp. 81-88
Author(s):  
MR Islam ◽  
MR Hassan ◽  
M Begum ◽  
NJ Punom ◽  
MK Begum ◽  
...  
Keyword(s):  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Growth Parameters ◽  
Average Daily Gain ◽  
Control Treatment ◽  
Feed Conversion ◽  
Moina Macrocopa ◽  
Individual Fish ◽  
Commercial Feed

Studies were carried out on the growth performance of Tilapia fry, Oreochromis niloticus cultured with zooplankton, Moina macrocopa in comparison to commercial feed. Three types of feed were used in three treatments where treatment-1 was fed with handmade feed (control), treatment-2 with commercial feed and treatment-3 with live zooplankton M. macrocopa. Thirty fry were stocked in each 60 L aquarium for a rearing period of 56 days. The fishes were fed twice a day at 90-400 Moina/individual fish for first 20 days, then 500-850 Moina/individual fish for 15 days and 900-1250 Moina/individual fish for remaining days. Sampling was done at 14 days interval. The growth performance of M. macrocopa was higher in the treatment fed with Spirulina which was 6350 individuals/ L of water and in the treatment fed with yeast it was 5100 individuals/L of water at 12th days. The study showed that condition factor of tilapia fry found in treatment-3 fed with M. macrocopa was comparatively higher (2.18±0.09) than that of treatment-2 fed with commercial feed (1.86±0.13) at a 56-day culture period. Average daily gain was significantly higher in the treatment-3 fed with M. macrocopa (0.13±0.01) than those of treatment-1 (0.06±0.01) and treatment-2 (0.08±0.01). The best value of feed conversion ratio and specific growth rate was found in treatment-3 fed with M. macrocopa than commercial feed and handmade feed. Protein content was significantly higher (15.91%) in treatment-3 than those of treatment-1 (10.96%) and treatment-2 (11.88%). The findings of this study suggest that growth parameters and body composition of Nile Tilapia was better in treatment-3 fed with M. macrocopa.Bangladesh J. Sci. Ind. Res. 52(2), 81-88, 2017

scholarly journals Supplementation of Ex-Situ Biofloc to Improve Growth Performance and Enhance Nutritional Values of the Pacific White Shrimp Rearing at Low Salinity Conditions

2021 ◽  
Vol 11 (10) ◽  
pp. 4598
Author(s):  
Umaporn Uawisetwathana ◽  
Magdalena Lenny Situmorang ◽  
Sopacha Arayamethakorn ◽  
Haniswita ◽  
Gede Suantika ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Growth Performance ◽  
Culture System ◽  
Pacific White Shrimp ◽  
Ex Situ ◽  
Intensive Culture ◽  
Shrimp Culture ◽  
Promising Alternative ◽  
Low Salinity

Shrimp is an important food source consumed worldwide. An intensive aquaculture system with overuse of feed in combination with detrimental effects from climate change are serious problems leading to mass mortality of cultured shrimp. Biofloc technology is an approach to managing water quality and controlling the disease to counter the negative side of intensive culture system; however, most of the biofloc applications are naturally formed, which could be inconsistent. In this study, we employed an established optimal ratio of microbial consortium called “ex-situ biofloc (BF)” to be used as a feed supplement in shrimp cultured in a zero-water discharged system at low salinity conditions. Three feeding groups (100%commercial pellet (C), 95%C+BF, 90%C+BF) of shrimp were cultured for six weeks. The effect of an ex-situ biofloc supplement with commercial pellet reduction showed that levels of ammonium, nitrite, nitrate and phosphate were significantly decreased in water culture. Shrimp fed with ex-situ biofloc supplement with commercial pellet reduction exhibited significantly increased shrimp weight and survival, and significantly expressed growth-related genes involving lipolysis and energy metabolism higher than those fed with 100% commercial pellet. Nutritional analysis indicated a significant increase of docosahexaenoic acid (DHA) and eicosenoic acid (C20:1) concentrations in the ex-situ biofloc supplemented shrimp. This finding revealed the potential of ex-situ biofloc to manage water quality, improve shrimp growth performance and enhance shrimp nutritional value under intensive culture at low salinity conditions. The beneficial effects of the ex-situ biofloc in shrimp culture system make it a promising alternative strategy to mitigate climate change effects leading to the sustainable production of high-quality shrimp in the future.

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