scholarly journals EFFECT OF WONDERFUL KOLA SEED MEAL (Buccholzia coriacea) ON GROWTH, MASCULINIZING POTENCY AND GONAD GROSS MORPHOLOGY OF THE NILE TILAPIA (Oreochromis niloticus, LINNAEUS 1758)

2019 ◽  
Vol 8 (3) ◽  
pp. 191
Author(s):  
Felix Eze ◽  
Eyo Victor Oscar
Keyword(s):  
Experimental Data ◽  
Weight Gain ◽  
Survival Rate ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Normal Diet ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Concrete Tank ◽  
One Way Anova

This study was aimed to investigate the effect of Buchholcia coriacea on the masculinization of Oreochromis niloticus. Five days old mixed sex of O. niloticus (mean weight 0.2g, mean length 0.45mm) were subjected to powdered B. coriacea seeds meal (BSM) at 0, 2, 4, 6, 8, 10g/kg twice daily for 1 month in an indoor experimental plastic basin capacity (50cm in diameter and 30cm deep) in duplicates with a total of six treatments in a complete randomized design. After which there were later fed with a normal diet in an outdoor concrete tank of size 1m3 for another one month. One way ANOVA and LSD were used to analyze the experimental data. The result obtained in this study showed that fish fed with 4g/kg BSM powdered BSM had the highest number (83.33%) of males which was significantly higher (p<0.05) compared to all other treatments categories. The highest survival rate (100%) was recorded in fish fed with 6g/kg BSM. The highest mean length, mean weight and weight gain observed are 0.488mm, 4.68g, and 4.65g respectively. The result of the histology showed that B. coriacea altered the sex of O. niloticus due to the presence of a hormone called dopamine in the kola. Conclusively, B. coriacea showed potential reproduction control in Oreochromis niloticus.

scholarly journals Pemberian Tepung Limbah Udang Yang Difermentasi Dalam Ransum Pakan Buatan Terhadap Laju Pertumbuhan, Rasio Konversi Pakan Dan Kelangsungan Hidup Benih Ikan Nila (Oreochromis niloticus) [The Given Fermentation The Prawn Waste Flour In Artificial Feed On Growth, Feed Convertion Ratio And Survival Rate Of Black Nile Tilapia (Oreochromis niloticus) ]

2019 ◽  
Vol 1 (2) ◽  
pp. 157
Author(s):  
Agustono, Muhammad Hadi, Yudi Cahyoko
Keyword(s):  
Survival Rate ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Feed Conversion ◽  
Design Data ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
The Given ◽  
Range Test ◽  
Prawn Waste

AbstractThe aim of this research was to find out optimum percentage of given fermentation the prawn waste flour in artificial feed on growth of black nile tilapia. The treatment of this research was giving fermentation the prawn waste flour in artificial feed i.e. 0%, 2,5%, 5%, 7,5%, 10%. Each treatment was repeated 4 times. Feed compositon was made of isoprotein. Fishes weight were about 6.1 – 6.8 g. Fishes were cultured with stocking rate 3 fish per 20 liter water and the fishes were reared for 40 days. Feed amount that consumed by fishes was measured every day to calculate feed conversion ratio. The calculation of fishes amount was done in beginning and end of research to count survival rate of fishes. Water quality was measured on beginning, middle and end of research. The design of this research was Completely Randomized Design. Data analysis used Analysis of Variance (ANOVA) to know the effect of the treatment and that difference among the treatment used Duncan's Multiple Range Test (DMRT). The result of the research showed that the highest growrth rate were attained on feed containing 10% of fermented prawn waste flour. The best feed convertion ratio were attained on feed containing 10% of fermented prawn waste flour.

scholarly journals Growth and Survival of Nile Tilapia (Oreochromis niloticus, Linnaeus 1758) Fry Fed at Diffrerent Inclusion Levels of Wonderful Kola (Buchholzia coriacea) Seed Meal (BSM)

2019 ◽  
pp. 1-6
Author(s):  
F. Eze ◽  
F. E. Avwemoya
Keyword(s):  
Weight Gain ◽  
Survival Rate ◽  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Seed Meal ◽  
Fish Diet ◽  
Growth And Survival ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Negative Effect

The effect of different inclusion levels of wonderful kola (Buchholzia coriacea) seed meal (BSM) on growth performance and survival rate of Oreochromis niloticus fry was investigated. Five days old mixed sex of O. niloticus (0.1– 0.2 g weight and 0.45 mm length) were subjected to powdered B. coriacea seeds meal (BSM) at 0, 2, 4, 6, 8 and 10 g/kg twice daily for 1 month from April-May, 2015. It was conducted in an indoor experimental plastic basin of capacity 50 cm in diameter and 30 cm deep. 60 fry per duplicates with a total of 720 fry, six isonitrogeneous treatments and 2 duplicates per each treatment. A complete randomized design and 30% Crude Protein were used. The highest mean length, mean weight, specific growth rate and weight gain observed are 0.488 mm, 4.68 g, 0.85 and 4.65 g respectively. The highest of survival rate (100%) was recorded in fish fed with 6 g/ kg BSM. Treatment 1 having 0% BSM (control) had the lowest weight gain. In conclusion, the addition of 4 g/ kg of BSM in a fish diet, has no negative effect on the growth performance and survival of O. niloticus.

scholarly journals Growth of Nile tilapia Oreochromis niloticus fed diets with different levels of proteins of yeast

2009 ◽  
Vol 52 (3) ◽  
pp. 721-728 ◽  
Author(s):  
Vandir Medri ◽  
Waldir Medri ◽  
Mauro Caetano Filho
Keyword(s):  
Weight Gain ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Food Conversion ◽  
Yeast Protein ◽  
Quadratic Effect ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Completely Randomized Design ◽  
Different Levels

This experiment was based on observations of 72 juveniles of Nile tilapia (Oreochromis niloticus), sexually reverted with an initial mean weight of 37.27 ± 4.92g, distributed in 12 cages of 100 l to evaluate the effects of the yeast inclusion as proteins source in the diet. The fishes were distributed in a completely randomized design with four treatments (0; 20; 40; and 60%) of yeast protein in substitution to the protein of traditional sources with three repetitions. Effects of the treatments were not observed (p > 0.05) on the survival and to food conversion. It was observed a quadratic effect on weight gain (Y = 73.39 + 0.173X - 0.0034X²; R²= 0.9986). It was concluded the best level of yeast inclusion as source proteins in the diet for reversed Nile tilapia juvenile was 25.44%.

The effect of vaccination in controling bacterial disease caused by Aeromonas hydrophila in nile tilapia (Oreochromis niloticus)

2014 ◽  
pp. 27
Author(s):  
Arne A Ratulangi ◽  
Reiny Tumbol ◽  
Hengky Manoppo ◽  
Henneke Pangkey
Keyword(s):  
Survival Rate ◽  
Aeromonas Hydrophila ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Bacterial Disease ◽  
Immersion Method ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Different Ages ◽  
Motile Aeromonas Septicaemia

This study aims to apply vaccination against bacterial disease. The purpose of vaccination is to trigger the immune respone both non-specific and specific of fish against bacteria Motile Aeromonas Septicaemia (MAS) caused by Aeromonas hydrophila. The vaccination for fish with different ages: 2-3 weeks and 5 weeks were done using immersion method. The fish were re-vaccinated (booster) after two weeks of the first vaccination. The survival rate was < 50 % for juveniles 2-3 weeks and > 50% for juveniles 5 weeks. Survival rate for juveniles 5 weeks was higher than juveniles of 2-3 weeks. This shows that organs of juveniles of 5 weeks were more complete than the 2-3 weeks juveniles. The age of fish is one of the important factors for successfully vaccination. Penelitian ini bertujuan untuk melakukan penerapan vaksinasi terhadap penyakit bakterial. Vaksinasi ditujukan untuk merangsang respon kekebalan non- spesifik dan spesifik pada tubuh ikan terhadap penyakit Motile Aeromonas Septicaemia (MAS) yang disebabkan oleh bakteri Aeromonas hydrophila. Vaksin diberikan pada benih ikan nila yang berbeda umur yaitu 2-3 minggu dan 5 minggu dengan menggunakan metode perendaman. Ikan divaksinasi ulang (booster) setelah 2 (dua) minggu dari vaksinasi yang pertama. Prosentase kelangsungan hidup < 50 % untuk benih umur 2-3 minggu dan > 50% untuk benih umur 5 minggu. Jumlah kematian benih umur 2-3 minggu lebih tinggi dari 5 minggu. Hal ini menunjukkan bahwa fungsi organ benih umur 5 minggu telah lebih lengkap dari pada benih umur 2-3 minggu. Umur ikan merupakan salah satu faktor penting penentu keberhasilan suatu kegiatan vaksinasi.

Challenge with fumonisins B1 and B2 changes IGF-1 and GHR mRNA expression in liver of Nile tilapia fingerlings

2018 ◽  
Vol 11 (2) ◽  
pp. 237-245 ◽  
Author(s):  
S.C. Claudino-Silva ◽  
B. Lala ◽  
N.H.A.P. Mora ◽  
C.R. Schamber ◽  
C.S. Nascimento ◽  
...  
Keyword(s):  
Weight Gain ◽  
Mrna Expression ◽  
Feed Intake ◽  
Oreochromis Niloticus ◽  
Feed Efficiency ◽  
Nile Tilapia ◽  
Growth Hormone Receptor ◽  
Control Treatment ◽  
Insulin Growth Factor ◽  
Nile Tilapia Oreochromis Niloticus

Although fumonisins are identified as responsible for alterations in weight gain, little information is available on their effects on expression of growth-related genes, especially for Nile tilapia (Oreochromis niloticus) fingerlings. In this study, Nile tilapia fingerlings were treated with increasing levels of fumonisin B1 (FB1) and fumonisin B2 (FB2) (diets of 0, 20, 40, and 60 mg/kg) to evaluate their effects on weight gain (WG), feed intake (FI), feed efficiency (FE), growth hormone receptor (GHR) and insulin growth factor 1 (IGF-1) mRNA expression in liver of this fish. All variables were evaluated at 15 and 30 days of treatment. Diet containing 0 mg fumonisin/kg was used as control treatment. Treatment with 20, 40, and 60 mg fumonisin/kg of diet significantly reduced WG (P<0.0001) and FE (P<0.0001), while GHR and IGF-1 mRNA expression was reduced both at 15 and 30 days of treatment. Feed intake was not affected by diets in any of the evaluated periods. These results indicate that fumonisins (FB1 + FB2) affect the growth of Nile tilapia fingerlings through mechanisms that involve reduction of GHR and IGF-1 expression.

scholarly journals The growth and survival rate of Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) in the aquaponic system with different vetiver (Vetiveria zizanioides L. Nash) plant density

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
. Widyatmoko ◽  
Hefni Effendi ◽  
Niken TM Pratiwi
Keyword(s):  
Survival Rate ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Plant Density ◽  
Average Length ◽  
Nutrient Utilization ◽  
Control Treatment ◽  
Vetiveria Zizanioides ◽  
Length Increase ◽  
Nile Tilapia Oreochromis Niloticus

Tilapia fish farming with the aquaponic is a system of cultivation that can save land use and increase the efficiency of nutrient utilization of residual feed and fish metabolism by the plant. This research aimed to analyze the influence of different plant densities on growth, survival and the comparison of length and weight of tilapia (Oreochromis niloticus) in aquaponic system with dense plant. The experimental design used was Completely Randomized Design in time with three treatments and three replications with the level of density of vetiver (Vetiveria zizanioides) tested in this study was 400 g, 800 g and without vetiver. Nile tilapia (Oreochromis niloticus) was used with weight of 14 g, average length of 8-9 cm, and the experiment lasted for 42 days. The observed parameters was the growth of length and weight, length-weight relationship, and the survival rate. The results showed that the highest increase was in the treatment of 800 g vetiver plants with the growth of 19 g, the length increase of 2.64 cm and the survival rate of 100 ± 0.00 %. The lowest value was in the control. The use of aquaponic system in nile tilapia management with vetiver and control treatment had significant effect (P <0.05) on weight gain, length increase, and survival rate of tilapia. Water quality in all treatments generally reflected a range within tolerable limits and not harmful to tilapia growth.AbstrakBudi daya ikan nila dengan sistem akuaponik merupakan sistem budi daya yang dapat menghemat penggunaan lahan dan meningkatkan efisiensi pemanfaatan hara dari sisa pakan serta metabolisme ikan oleh tanaman. Penelitian ini bertujuan untuk menganalisis pengaruh padat tanaman yang berbeda terhadap pertumbuhan, sintasan dan perbanding-an panjang dan bobot ikan nila (Oreochromis niloticus) pada sistem akuaponik dengan padat tanaman yang berbeda. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan tiga perlakuan dan tiga kali ulangan dengan tingkat kepadatan vetiver yang diuji dalam penelitian ini adalah 400 g, 800 g dan tanpa vetiver. Ikan yang digunakan  adalah ikan nila dengan bobot 14 g, panjang rata-rata 8-9 cm, dan dipelihara selama 42 hari. Parameter yang diamati adalah pertumbuhan bobot, hubungan panjang-bobot, pertambahan panjang dan sintasan. Hasil peneli-tian menunjukkan bahwa peningkatan nilai tertinggi terdapat pada perlakuan tanaman vetiver 800 g dengan pertam-bahan bobot sebesar 19 g, pertambahan panjang sebesar 2,64 cm dan sintasan ikan sebesar 100±0,00 %. Nilai teren-dah terdapat pada kontrol. Penggunaan sistem akuaponik pada pemeliharaan ikan nila dengan perlakuan vetiver dan kontrol berpengaruh nyata (P<0,05) terhadap pertambahan bobot, pertambahan panjang, dan sintasan ikan nila. Kua-litas air pada semua perlakuan secara umum menggambarkan kisaran yang masih berada dalam batas toleransi dan tidak membahayakan bagi pertumbuhan ikan nila.

scholarly journals Effect of size heterogeneity of Nile tilapia (Oreochromis niloticus) on the optimal harvest time: a bioeconomics approach

2020 ◽  
Vol 48 (1) ◽  
pp. 65-73
Author(s):  
Patricia Borrego Kim ◽  
Mariel Gullian Klanian ◽  
Juan Carlos Seijo
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Market Size ◽  
Harvest Time ◽  
Economic Decisions ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Body Sizes ◽  
Size Heterogeneity ◽  
Size Dispersion

A critical problem in the production of Nile tilapia Oreochromis niloticus in intensive and hyper-intensive systems is the heterogeneity of body sizes as it influences the final production and economic yield. The objective of this study was to calculate the bioeconomic effect of size heterogeneity on the production of Nile tilapia at a commercial level and to determine the optimum harvest time (OHT) considering four minimum marketable sizes target (Mms = 350, 400, 450, 500 g). Two seeding strategies were evaluated: homogeneous seeding (HM) with a 96.55 ± 24.51 g initial body weight and heterogeneous seeding (HT) with a 100.17 ± 5.91 g initial weight. Fish from both treatments were stocked at 40 fish m-3 in triplicate using a randomized design. The calculated quasi-profits of variable costs showed an inversely proportional relationship with the minimum market size in both groups. The smaller size dispersion in HM generated higher profits than HT. The OHT for Mms [350, 500 g] of HM population was 180 days, with a mode of 641 g. The OHT was also 180 days for the HT population but only for the Mms [350, 400 g] and a mode of 578 g. In terms of quasi-profits, the HM produced 19.93% more quasi-profit than the HT in the market size of 350 g at 180 days (HM = 0.50 US$ kg-1; HT = 0.44 US$ kg-1). The simple bioeconomic model presented here can help producers manage a series of economic decisions associated with OHT, when targeting different market segments requiring different Mms.

scholarly journals Effect of replacing soybean meal with water melon (Citrullus lanatus) seed meal on the growth, feed utilization and body composition of Nile tilapia (Oreochromis niloticus)

2020 ◽  
Vol 45 (2) ◽  
pp. 59-66
Author(s):  
W. A. Jimoh ◽  
M. O. Shittu ◽  
S. A. Abdulsalami ◽  
F. Y. Okemakin ◽  
A. A. Ayeloja
Keyword(s):  
Weight Gain ◽  
Soybean Meal ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Citrullus Lanatus ◽  
Nutrient Utilization ◽  
Seed Meal ◽  
Average Weight ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Water Melon

The nutritive potential of water melon (Citrullus lanatus) seed meal as dietary protein source in the diet of Nile tilapia (Oreochromis niloticus) using growth performance and nutrient utilization were evaluated in a 56 day feeding trial. One hundred and fifty tilapia fingerlings of average weight 6.12±0.05g were acclimatized for a week, weighed and allotted into five dietary treatments; containing 0, 15, 30, 45 and 60% Citrullus lanatus replacement levels with soybean meal respectively. The diets (35% crude protein and 10% lipid) were isonitrogenous and isolipidic. Each treatment was replicated three times with ten fish per replicate. Fish were fed 5% body weight on two equal proportions per day to determine weight gain, percentage weight gain, specific growth rate, food conversion ratio, protein efficiency ratio and net protein utilization. The result from the study indicated that there was no significant (p>0.05) differences in the FCR and PER between the fish fed control diets and the fish fed test diets.

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