Evaluation of pineapple crush waste meal as an energy feedstuff in the diets of tilapia, Oreochromis niloticus.

2021 ◽  
Vol 33 (2) ◽  
pp. 308-312
Author(s):  
Y. Akegbejo-Samsons ◽  
T. Omoniyi
Keyword(s):  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Crude Protein ◽  
Protein Efficiency Ratio ◽  
Growth Parameters ◽  
Efficiency Ratio ◽  
Daily Growth ◽  
Final Body Weight ◽  
Pineapple Waste ◽  
Performance Results

Pineapple crush waste (PCW) was used to replace maize as an energy source in the diets of Tilapia, Oreochromis niloticus. Five diets (31.52-32.51% crude protein) was formulated in which yellow maize was replaced at varying level with pineapple waste as follows: Diet 1 (100% yellow maize), diet 2 (75% yellow maize, 25% PCW), diet 3 (50% yello maize, 50% PCW), diet 4 (25% yellow maize, 75% PCW), diet 5 (100%PCW). Growth performance of fish was highest in diet 4 for all investigated growth parameters such as average daily growth (0.73g), final body weight (76.21g) and protein efficiency ratio (2.02). differences in FCR and PER were not significantly different between all diets. Diet with 100% PCW had the least growth performance. Results from the study showed that PCW was better utilized by Tilapia fish when the level of its replacement was either equal or slightly higher than that of yellow maize. Tilapia fish did not thrive well when the maize in practical diets was replaced completely with PCW.

scholarly journals PENGARUH PENAMBAHAN GLISEROL PADA PAKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN NILA (Oreochromis niloticus)

2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Lusi Herawati Suryaningrum ◽  
Mulyasari Mulyasari ◽  
Reza Samsudin
Keyword(s):  
Survival Rate ◽  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Protein Efficiency Ratio ◽  
Specific Growth ◽  
Efficiency Ratio ◽  
Experimental Diet ◽  
Protein Retention ◽  
Nile Tilapia Oreochromis Niloticus

The aim of this research was to determine the optimum percentage of glycerol addition into the diets of  Nile Tilapia (Oreochromis niloticus) on growth performance, feed convertion ratio, and survival rate. The research was conducted using 15 aquaria with the size of 60 x 50 x 45 cm3, each containing 25 O. niloticus with average initial weight of 4.63 ± 0.15 g. The experiment was conducted using a complete random design with five treatments and three replications. Isonitrogenous (31%) and isocaloric (17 MJ.kg-1) diets were provided for 60 days of rearing period. Five diets were formulated with glycerol content of 0% (G0); 5% (G5); 10% (G10); 15% (G15), and 20% (G20). Fish were fed twice daily with experimental diet at satiation level. The result showed that addition of 10% glycerol in the diet (G10) presented the highest values for weight gain (105.85 ± 0.40%), specific growth rate (3.44 ± 0.01%), protein retention (27.75 ± 0.02%), protein efficiency ratio (2.53 ± 0.15%), lipid retention (60.44 ± 0.03%), and feed convertion ratio (1.59 ± 0.01%) (P < 0.05). Survival rate was not affected by dietary containing glycerol (P > 0.05). Therefore, addition of 10% glycerol into the diet gave a significant increase on growth performance and feed convertion ratio without adverse effect on survival rate of Nile Tilapia.  

Response of broiler chickens fed single straight diet fortified with fish meal

2020 ◽  
Vol 45 (2) ◽  
Author(s):  
D. N. Onunkwo ◽  
C. N. Okocha
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Fast Food ◽  
Broiler Chickens ◽  
Crude Protein ◽  
Fish Meal ◽  
Growth Parameters ◽  
Body Weight Gain ◽  
Broiler Chicks ◽  
Final Body Weight

This study was carried out to evaluate the growth performance, cut parts characteristics and organ proportions of broiler chickens fed single straight diet fortified with fish meal. The basal diet was augmented with fishmeal to take the crude protein from 22% to 28%. One hundred and twenty day-old broiler chicks were used in this study which lasted for six weeks. The birds were randomly distributed into 4 treatments (T , T , T and T ) that were replicated hree times with 10 birds per replicate. The replicate T , T , T and T had different inclusion ate of crude protein which were 22%, 24%, 26% and 28% all with an energy level of 2900kcal/kg. Parameters measured were the initial body weight, final body weight, values calculated include average daily feed intake, average body weight gain and feed conversion ratio. There were no significant differences observed in all the growth parameters measured. No significant differences (p>0.05) were observed in the cut parts characteristics and internal organ proportions measured. Taking all the parameters measured into consideration it suggests that in this single straight diet for broiler chicken, there were no adverse effects on their growth performance. Therefore, the four treatment diets were good enough to give body weight in the range of 2-2.5kg that resulted in dressed carcass weight of 1.35-1.5kg, a range of weight that the fast food lines desire.

scholarly journals Growth Performance and Feed Utilization of Clarias gariepinus (Teugels) Fed Different Dietary Levels of Soaked Bauhinia Monandra (Kutz) Seed Meal

2016 ◽  
Vol 5 (1) ◽  
pp. 97 ◽  
Author(s):  
B. I. Balogun ◽  
S. J. Oniye ◽  
J. Auta ◽  
C. A. M. Lakpini ◽  
F. O. Abeke
Keyword(s):  
Growth Performance ◽  
Crude Protein ◽  
Clarias Gariepinus ◽  
Proximate Analysis ◽  
Seed Meal ◽  
Unit Weight ◽  
Feed Conversion ◽  
Efficiency Ratio ◽  
Crude Fibre ◽  
Level Of Significance

This study was conducted to evaluate the suitability of soaked <em>Bauhinia monandra</em> (Kutz) seed as alternative protein source for <em>Clarias gariepinus</em> and to determine cost of feed compounded. The proximate analysis of the diet (crude protein, crude fibre, ash, moisture content and lipid) were determined using AOAC (1980). Data for each parameter was subjected to one way analysis of variance (ANOVA) while means of various results were compared at 5% level of significance. A preliminary study was conducted to determine the best processing method that reduced anti-nutrients to the minimum level without impairing nutrients composition. Boiled, toasted and soaked seeds were used. <em>Bauhinia</em> seeds soaked for 96 hours had least concentration of anti-nutrients. The experimental diets was formulated to contain soaked <em>Bauhinia</em> seed meal (SBSM) at levels of 25%, 50% and 75% inclusion (Diets 2, 3 and 4 respectively)  with two diets acting as control (Diets 1 and 5). All diets were isonitrogenous (40% crude protein) and isocaloric (3212kcal/kg). A 12 weeks feeding trial was conducted using juveniles which were randomly distributed into 12 improvised non-recirculatory and semi-flow through indoor plastic tanks (52cm X 34cm X 33.5cm) at a stocking rate of 10 fish per tank and three (3) replicates per treatment. The experimental design was complete randomized. The fish were fed at 5% body weight, twice daily. Diets with higher inclusion levels of SBSM (diets 3 and 4) significantly depressed growth performance of fish. The variations observed in the Specific Growth Rate (SGR), Feed Conversion Ratio (FCR), Feed Efficiency Ratio (FER) and Protein Efficiency Ratio (PER) were associated with the anti-nutrients present in the diets, these parameters reduced with increasing levels of SBSM in the diets of fish. Based on the relative cost of diets per unit weight gain and protein gain, diet 2 (25% SBSM) was most economical. The results suggested that SBSM can be used to substitute up to 25% levels of dietary protein in <em>C. gariepinus</em> juveniles without significant reduction in growth.

scholarly journals Potential use of green algae Caulerpa lentillifera as feed ingredient in the diet of nile tilapia Oreochromis niloticus

2017 ◽  
Vol 16 (2) ◽  
pp. 195
Author(s):  
Nadisa Theresia Putri ◽  
Dedi Jusadi ◽  
Mia Setiawati ◽  
Mas Tri Djoko Sunarno
Keyword(s):  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Performance Test ◽  
Feed Utilization ◽  
Raw Material ◽  
Fish Diet ◽  
Feed Ingredient ◽  
Final Body Weight ◽  
Caulerpa Lentillifera

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><em> </em></p><p class="NoParagraphStyle">The high composition of import raw material of fish diet in Indonesia causes feed price expensively and should be replaced using local materials such as green macro algae. It is, therefore, this study aimed to evaluate effect of diet containing the <em>Caulerpa lentillifera</em>, as feed ingredient in the diet of Nile tilapia <em>Oreochromis niloticus</em>. This study consisted of two experiments which were <em>C. lentillifera </em>digestibility test for raw material feed for tilapia and growth performance test of tilapia. <em>C. lentillifera </em>digestibility test was done by using Cr<sub>2</sub>O<sub>3</sub> as indicators and analysis of faecal tilapia. The second experiment is growth performance test using a completely randomised design with four diets were formulated at variuos rates of <em>C. lentillifera</em> meal of 0 (control), 10, 20, and 30%. A number of 240 tilapia fingerlings of 3.41±0.10 g in mean weight were randomly stocked in 12 aquaria and fed on diet test for growth performanced of rearing period. <em>C. lentillifera</em> digestiility test result showed a good value as a raw material feed tilapia, the digestibility of <em>C. lentiliifera</em> and protein digestibility amounted to 68.81% and 86.31%. Growth performance parameters showed the use of 10% and 20% is not significantly different from the control (P&gt;0.05), to the final body weight, protein efficiency ratio, protein retention, specific growth rate, and feed efficiency. But, the diet test at 30% performed the lowest growth performance and feed utilization as well of tilapia fingerlings. This study, therefore, concludes that <em>C. lentillifera</em> meal could be used up to 20% in the tilapia diet.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: <em>Caulerpa lentillifera</em>, Nile tilapia, feed utilization, growth performance</p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Tingginya jumlah bahan baku impor dalam pakan ikan di Indonesia menyebabkan harga pakan yang tinggi dan harus diganti menggunakan bahan alternatif lokal seperti makro alga. Penelitian ini bertujuan untuk mengkaji pengunaan dari pakan yang mengandung <em>Caulerpa lentillifera </em>sebagai bahan baku pakan ikan nila <em>Oreochromis niloticus</em>. Tahapan penelitian terdiri atas uji kecernaan <em>C. lentillifera</em> sebagai bahan baku dan uji kinerja pertumbuhan ikan nila. Metode uji kecernaan menggunakan Cr<sub>2</sub>O<sub>3</sub> sebagai indikator pakan dan analisis feses ikan nila. Tahap penelitian kedua adalah kinerja pertumbuhan menggunakan rancangan acak lengkap dengan pakan diformulasikan dengan inklusi 0 (kontrol), 10, 20, dan 30% tepung <em>C. lentillifera</em>. Ikan nila sebanyak 240 ekor, dengan berat rata-rata 3,41±0,1g dibagi kedalam 12 akuarium dan diberi pakan perlakuan untuk melihat kinerja pertumbuhan. Hasil uji kecernaan <em>C. lentillifera</em> menunjukkan nilai yang baik sebagai bahan baku pakan ikan nila, yaitu kecernaan bahan sebesar 68,81% dan kecernaan protein sebesar 86,31%. Parameter kinerja pertumbuhan menunjukkan perlakuan penambahan 10% dan 20% tepung <em>C. lentillifera</em> tidak berbeda nyata (P&gt;0,05) dengan kontrol, yang terdiri atas: bobot tubuh akhir, pertumbuhan mutlak, protein efisiensi rasio, retensi protein, laju pertumbuhan spesifik dan efisiensi pakan. Namun, pakan perlakuan 30% menghasilkan kinerja pertumbuhan dan efisiensi pakan yang lebih rendah pada ikan nila. Penelitian ini memberikan hasil, penggunaan tepung <em>C. lentillifera</em> dapat digunakan sampai 20% dalam pakan ikan nila. </p><p class="NoParagraphStyle">  </p><p>Kata kunci: <em>Caulerpa lentillifera</em>, nila, pemanfaatan pakan, kinerja pertumbuhan</p>

scholarly journals Evaluation of corn steep powder as a protein source for feed of Nile tilapia Oreochromis niloticus

2021 ◽  
Vol 20 (2) ◽  
pp. 115-129
Author(s):  
Dodi Hermawan ◽  
Muhammad Agus Suprayudi ◽  
Dedi Jusadi ◽  
Alimuddin Alimuddin ◽  
Julie Ekasari
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Protein Source ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Dry Matter Digestibility ◽  
Feed Digestibility ◽  
Randomized Design ◽  
Study Results

This study was aimed to evaluate the use of corn steep powder (CSP) as a plant protein source in Oreochromis niloticus diet. A commercial feed with 28% protein content and 368 kcal/g energy was used as reference diet, while the test feed consisting of various CSP content, namely 0%, 10%, 20%, and 30% and feed containing soybean meal (SBM) at the level of 20% and 30%. Tilapia were used in the trial with the initial body weight of 6.44 ± 0.29 g, and reared for thirty days in the aquarium at the density of fifteen and fed 3 times daily at a satiation level. All diets were supplied by 0.5% of Cr2O3 as an indicator for digestibility measurement. This study applied the completely randomized design experimental method containing six diet treatments and four replications. The result showed that CSP contains 40.27% protein, 26.10% lactic acid, and minerals. CSP is low in crude fiber and anti-nutritional factors. This study results that increasing the level of CSP significantly decreased feed acidity (P <0.05) compared to the control. The addition of CSP 20% increased feed digestibility including protein, lipid, energy, and dry matter digestibility. CSP 20% treatment increased final body weight, specific growth rate and reduced feed conversion ratio significantly (P<0.05) compare to other treatments. In conclusion, CSP can be used up to 20% to improve the growth performance of tilapia.   Keyword: corn steep powder, feed digestibility, growth performance, tilapia   ABSTRAK   Penelitian ini bertujuan mengevaluasi penggunaan corn steep powder (CSP) sebagai sumber protein nabati pada pakan ikan nila Oreochromis niloticus. Pakan komersial dengan kadar protein 28% dan energi 368 kkal/g digunakan sebagai pakan acuan, sementara pakan uji terdiri atas pakan dengan kandungan CSP sebanyak 0% (CSP0), 10% (CSP10), 20% (CSP20) dan 30% (CSP30) serta pakan dengan kandungan tepung bungkil kedelai (SBM) pada level 20% (SBM20) dan 30% (SBM30) sebagai pembanding. Penambahan Cr2O3 0,5 % diberikan sebagai indikator untuk mengukur kecernaan. Ikan nila dengan bobot tubuh rata-rata 6.44 ± 0.29 dipelihara dalam akuarium (95×45×45 cm3) yang diisi air 100 L dengan kepadatan 15 ekor per akuarium dan diberi pakan tiga kali sehari secara at satiation selama 30 hari masa pemeliharaan. Penelitian ini menggunakan desain rancangan acak lengkap dengan enam perlakuan dan empat ulangan. Hasil penelitian menunjukkan bahwa CSP mengandung protein sebesar 40,27%, asam laktat 26,10%, beberapa mineral dan indeks asam amino esensial 0,90. CSP juga rendah serat kasar dan zat antinutrisi. Peningkatan dosis CSP menurunkan pH pakan secara signifikan (P<0.05) dibandingkan dengan kontrol. Penambahan CSP sampai level 20% meningkatkan nilai kecernaan total, kecernaan bahan, kecernaan protein, kecernaan lemak dan kecernaan energi. Di samping itu, perlakuan CSP 20% meningkatkan bobot akhir, laju pertumbuhan harian dan rasio konversi pakan yang signifikan (P<0,05) dibandingkan perlakuan lainnya. Hasil penelitian ini menunjukkan bahwa pemberian CSP 20% dapat meningkatkan kinerja pertumbuhan ikan nila.   Kata kunci: corn steep powder, kecernaan pakan, pertumbuhan, ikan nila

Feeding ration and frequency influences growth, feed utilization and body composition of goldfish (Carassius auratus)

2018 ◽  
Author(s):  
Satyajit S. Belsare ◽  
Hukam Singh Dhaker
Keyword(s):  
Body Composition ◽  
Lipid Content ◽  
Carassius Auratus ◽  
Crude Protein ◽  
Protein Efficiency Ratio ◽  
Feed Utilization ◽  
Feed Conversion ◽  
Efficiency Ratio ◽  
Feeding Frequency ◽  
Goldfish Carassius Auratus

To establish an effective feeding regime for Carassius auratus, this experiment investigated the effects of feeding ration and feeding frequency on growth, feed utilization and body composition in juvenile C. auratus (Initial weight: 1.66 ± 0.018 g). A 4 × 4 experimental design of four ration sizes (2, 3, 4 and 5% body weight per day [BW/day]) with four feeding frequencies (1, 2, 3 and 4 meals/day) was carried out over 8 weeks with three replicates per treatment. The results showed that weight gain and specific growth rate (SGR) increased significantly (P less than 0.05) with the feeding ration from 2% BW/day to 3% BW/day and feeding frequency from 1 meal/day to 4 meals/day. Similarly feed conversion ratio (FCR) and protein efficiency ratio (PER) were significantly better (P less than 0.05) at feeding ration of 3% BW/day than 4 and 5% BW/day at 4 meals/day than 1, 2 or 3 meals/day. SGR, FCR and PER further reduced when feeding ration was increased beyond 3% BW/day. Lipid content improved with the increased feeding frequency at all feeding rations, however feeding frequency did not exhibit a significant effect on crude protein level (P>0.05). Moisture content of body showed an opposite trend to lipid content and decreased with increase in feeding frequency. In conclusion, feeding ration of 3% BW/day and feeding frequency of 4 meals/ day was found to be better for maximal growth and feed utilization of young ones of C. auratus.

scholarly journals Some Biological Observations on Rearing Juveniles of Nile Tilapia (Oreochromis niloticus (Linnaeus, 1758)) in Fixed Cages at Gezira Irrigation Canals, Sudan

2021 ◽  
pp. 1-7
Author(s):  
Sana Yagoub Abdallah Tahir ◽  
Abdalla Gadain Alnaiem ◽  
Egbal Osman Ahmed
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Fish Growth ◽  
Quality Analysis ◽  
Irrigation Canal ◽  
Irrigation Canals ◽  
Final Body Weight ◽  
Effect Of Water

This study was conducted at Gezira Irrigation canal to evaluate the growth performance and the effect of water tempetrature to the culture ability of Nile tilapia juveniles for 120 days. Monosex Oreochromis niloticus sized 8.17±0.33 g were carried out from Mabroka fish farm and stocked in 400 m³ fixed cages at a density of 50 fish/m³. Fish were fed daily with a commercial pellet diet with 33% protein concentration at a feeding rate of 3% of their body weight per day. Feed was given twice a day (09:00 morning and 16:00 evening). Fish growth parameters, water quality analysis have measured every two weeks. The final body weight of fish was 40.23±1.04 grams and the mean daily gained weight was 0.29 g/day, while the survival rate of fish was 99.7%±6.7 and the Food Conversion Ratio (FCR) was 3.8. The average value of temperature, pH and transparency were 23°C, 7.5, 31.5 cm respectively. The results of the study revealed that there is a possibility to culture tilapia juvenile at stocking density of 50/m³ in fixed cages in Irrigation Canals, for the effect of water temperature on fish growth performance the results obtained that no more effect on fish growth during study period.

scholarly journals Influence of Different Types of Diets on the Growth Performance of Juvenile Guppies (Poecilia reticulata Peters, 1859)

Mangifera Edu ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 93-102
Author(s):  
Sultan Mohideen Abdul Khader ◽  
Kareem Altaff
Keyword(s):  
Growth Performance ◽  
Crude Protein ◽  
Poecilia Reticulata ◽  
Brachionus Plicatilis ◽  
Growth Parameters ◽  
Survival Rates ◽  
Commercial Fish ◽  
Growth And Survival ◽  
Live Feed ◽  
Optimal Feed

This investigation aimed to analyze the effects of different diets and determine the optimal feed on the growth performance of guppy Poecilia reticulata (Peters, 1859). In the present study, juvenile guppies were procured from commercial fish breeders, Kolathur, Chennai, and fed with four experimental diets, namely Diet I (Control-Pellet feed), Diet II (Formulated feed), Diet III (Dry Tubifex), and Diet IV (Live feed Brachionus plicatilis) to examine the effects on growth and survival rates. In the experiment, 12 glass circular tanks with a volume of 10 L were used, and ten juveniles having an average body length and weight of 0.8 cm and 0.01 g were randomly introduced into each aquarium (80 cm×30 cm×35 cm) in triplicates. During the experimental study, the fish were fed two times a day ad libitum for 90 days. The various growth parameters and proximate composition of the diets were calculated by following standard methods. The findings showed significant differences (p<0.05) in the fish's various growth parameters fed with different diets. The fish fed with Diet IV 52% crude protein performed better than those provided with lower levels. The increase in growth parameters could be attributed to increased levels of dietary crude protein. However, the diet does not have any significant impact on fish survival rates. Thus, it is concluded that the Live Feed B. plicatilis with 52% crude protein is suitable for theoptimum growth of Poecilia reticulata under the current experimental set-up and recommended for feeding juvenile guppies.

scholarly journals Growth evaluation of Oreochromis niloticus fed different concentrations of choline and methionine

2020 ◽  
Vol 5 (2) ◽  
pp. 122-128
Author(s):  
Rudy Agung Nugroho ◽  
Normala Sari ◽  
Retno Aryani ◽  
Hetty Manurung ◽  
Rudianto Rudianto
Keyword(s):  
Oreochromis Niloticus ◽  
Feed Efficiency ◽  
Crude Protein ◽  
Growth Parameters ◽  
Body Weight Gain ◽  
Average Daily Gain ◽  
Feed Conversion ◽  
Tilapia Diet ◽  
And Control ◽  
Feed Conversion Rate

A 12-week research was conducted to determine the effects of choline and methionine supplementation on the growth performance of Nile tilapia (Oreochromis niloticus). Three diets, P2-P4 with 0.04; 0.08; 0.12 % of choline; P6-P8 with same levels choline plus methionine (0.15 %); a diet with only 0.15 % methionine (P5); and control without any supplementation (P1) were fed to tilapia (initial weight ±21.05 g) for 12 weeks. Final weight (FW), Body Weight Gain (BWG), Average Daily Gain (ADG), Specific Growth Rate (SGR), and Protein Efficiency Ratio (PER), Feed Efficiency (FE), Feed Intake (FI), Feed Conversion Rate (FCR), Survival Rate (SR), crude protein and lipid of fish fed various levels of choline and methionine were also measured. The results showed that tilapia fed 0.04 % choline (P2) had significantly better growth parameters and feed efficiency than other groups. Meanwhile, SR of tilapia was not affected by any supplementation of choline and methionine. The tilapia fed 0.08% choline (P3) showed the highest crude protein (52.50 ± 0.98 %) in the carcass proximate but low lipid (19.03 ± 0.10 %). This finding demonstrated the benefits of choline (0.04-0.08 %) supplementation in the tilapia diet in term of growth and carcass proximate.

scholarly journals PERFORMA PERTUMBUHAN KRABLET KEPITING BAKAU (Scylla olivacea) DENGAN FREKUENSI PEMBERIAN PAKAN BERBEDA PADA STADIA PENDEDERAN

2016 ◽  
Vol 11 (2) ◽  
pp. 163 ◽  
Author(s):  
Kamaruddin Kamaruddin ◽  
Usman Usman ◽  
Asda Laining
Keyword(s):  
Crude Protein ◽  
Feeding Rate ◽  
Protein Efficiency Ratio ◽  
Carapace Width ◽  
Mud Crab ◽  
Feed Conversion ◽  
Efficiency Ratio ◽  
Feeding Trial ◽  
Growth And Survival ◽  
Gross Energy

Salah satu upaya untuk menekan tingkat kanibalisme dan memicu pertumbuhan krablet kepiting bakau adalah dengan pemberian pakan yang cukup, baik jumlah maupun mutu. Penelitian ini bertujuan mengevaluasi kinerja pertumbuhan dan sintasan krablet kepiting bakau dengan frekuensi pemberian pakan berbeda pada stadia pendederan. Hewan uji berupa krablet kepiting bakau dengan bobot awal 0,037 ± 0,005 g dan lebar karapas awal 3,43 ± 0,42 mm; menggunakan sembilan unit fiber gelas dengan ukuran masing-masing 1 m x 1 m x 0,5 m. Hewan uji ditebar dengan kepadatan 50 ekor/m2. Perlakuan yang diujicobakan adalah frekuensi pemberian pakan per hari, yaitu: (A) dua kali (pukul 08.00 dan 18.00), (B) tiga kali (pukul 08.00, 13.00, dan 18.00), dan (C) empat kali (pukul 08.00, 13.00, 18.00, dan 23.00). Pakan yang digunakan berupa pelet dengan kandungan protein kasar 46,5%; lemak 8,8%; dan energi total 18,8 MJ/kg. Dosis pakan harian sebanyak 30%-15% bobot badan secara menurun hingga akhir penelitian. Setelah lima minggu pemeliharaan didapatkan hasil yang menunjukkan bahwa pertumbuhan, sintasan, konsumsi pakan harian, rasio konversi pakan, dan rasio efisiensi protein tidak menunjukkan perbedaan yang nyata (P>0,05) di antara perlakuan. Namun demikian, pemberian pakan empat kali sehari cenderung menunjukkan pertumbuhan yang lebih cepat dan dengan ukuran krablet yang lebih seragam.One of technique to reduce cannibalism and to stimulate the growth of mud crab is by providing an adequate feed that meet the requirement level of the crablet. The objecive of this study was to evaluate the growth and survival of crablet fed artificial diet with different feeding frequencies during nursery stage. The treatments were different feeding frequencies namely (A) 2 times (08:00 and 18:00), (B) 3 times (08:00, 13:00, and 18:00 ) and (C) 4 times (08:00, 13:00, 18:00 and 23:00). Feeding rate was from 30 to 15 % of biomass/day. Feed used in the feeding trial was a dry pellet (1.2 mm size) containing 46.5 % crude protein, 8.8 % lipid and gross energy 18.8MJ / kg. Mud crab crablet with initial body weight of 0.037 ± 0.005 g with carapace width of 3.43 ± 0.042 mm were stocked into nine fiber tanks (1 m x 1 m x 0.5 m) with density of 50 crablets / tank. After 5 weeks of feeding trial, results of the experiment showed that growth rate, survival, feed intake, feed conversion ratio and protein efficiency ratio were not significantly difference (P> 0.05) among the treatments. However, growth performance of crablet fed 4 times/day increased and resulted uniformsize of crablet.

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