scholarly journals Efficacy of Formulated Feed Preference and Stocking Density on Growth and Survival of Baby Pila globosa Reared in Laboratory Condition

Author(s):  
Md. Shariful ISLAM ◽  
A. F. M. Shofiquzzoha ◽  
Nilufa Begum

Quality diet as food for raising freshwater snails under laboratory conditions has a significant effect on their growth and the number of egg clutches laid as well as on the size of the snail. Now a days, some innovative farmers of Bangladesh started snail culture within their fish farms in the view of producing snail to use as feed for their Prawn (Macrobrachiam rosenbergii), indigenous catfish (Clarius batrachus) farms, domestic duck farms and also as a protein supplement for preparing fish feed. From previous study we know that Bulinus nyassanus growth and survive rate was found well on locally formulated fish diet consisting of 30% crude protein with ingredients comprising fish meal, maize bran, rice bran, soya bean, wheat bran, hemicellulose (binder), vitamin premix and mineral premix.  But no such research has been done in case of apple snail. The present study was aimed to investigate the feed formulation preferred by Pila globosa species and their effects on survival and growth of these snails in laboratory condition. Three type of formulated feed viz., pellet feed, fish meal and 50% fish meal + 50% crusted khudipana were used for the experiment in high and low stocking density of baby snails. The present findings shown that the diets in order of preference based on their effects on growth and survival of snails were formulated pellet feed, fish meal and 50% fish meal+ 50% crushed khudipana. After rearing of 28 days, highest growth found 0.32g with 86.66% survival with formulated diet in 60nos/L stocking density and 0.35g with 90% survival with formulated diet in 30nos/L stocking density. It`s indicate that the snails reared on formulated pellet feed diets and lower stocking density gave better performance in terms of survival and mean growth rate than those reared on other diets.

2021 ◽  
Vol 46 (1) ◽  
pp. 89
Author(s):  
Elrifadah - Elrifadah

This study was aim to determine the different pellet feed source on the growth and survival rate of Nile tilapia. The purpose of this research was to provide information of the best feed for the growth and survival rate of Nile tilapia.Completely Randomized Design, with 3 treatments ( treatment A: community-made pellet, treatment B: commercial pellet PF500; treatment C: commercial pellet 885) and 3 replicate was used for the research. Nile tilapia with 3-4 cm length placed in nine aquariums with stocking density 6 fishes/L. Feeding treatment given twice a day at level 3 %/ body weight.  The parameters observed include growth rates, survival, and feed conversion. Supporting data was observed for water quality. Observation was carried out for 30 days.The results showed that the average weight, in treatment A was 101,66 g, treatment B was 118.33 g, and treatment C was 128.33 g. The average yield of relative growth in treatment A was 111.44%, treatment B was 134.23%, and treatment C was 135.76%. Treatment C shows the highest value, then treatment B and treatment A. The average yield of feed conversion, treatment A was 1.11; treatment B 3.21; and treatment C was 3.37. Survival rate of all treatments was 100%.


2019 ◽  
Vol 11 (6) ◽  
pp. 1697 ◽  
Author(s):  
Brunella Arru ◽  
Roberto Furesi ◽  
Laura Gasco ◽  
Fabio Madau ◽  
Pietro Pulina

The economic and environmental sustainability of aquaculture depends significantly on the nature and quality of the fish feed used. One of the main criticisms of aquaculture is the need to use significant amounts of fish meal, and other marine protein sources, in such feed. Unfortunately, the availability of the oceanic resources, typically used to produce fish feed, cannot be utilized indefinitely to cover the worldwide feed demand caused by ever-increasing aquaculture production. In light of these considerations, this study estimates how aquaculture farm economic outcomes can change by introducing insect meal into the diet of cultivated fish. Several possible economic effects are simulated, based on various scenarios, with different percentages of insect flour in the feed and varying meal prices using a case study of a specialized off-shore sea bass farm in Italy. The findings indicate that the introduction of insect meal—composed of Tenebrio molitor—would increase feeding costs due to the high market prices of this flour and its less convenient feed conversion ratio than that of fish meal. Therefore, the expected environmental benefits of using this highly promising insect meal in fish feed do not align with the current economic interests of the aquaculture industry. To our knowledge, this is the first study to investigate this theme, and it must be noted that our findings cannot be generalized widely because a specific case study was used. Nevertheless, our findings suggest that efforts should be made—at least at the farm level—to find profitable ways to encourage the introduction of this attractive alternative to guarantee both economic and environmental sustainability in the near future.


2019 ◽  
Vol 2 (2) ◽  
pp. 73
Author(s):  
Mochammad Noval ◽  
Hany Handajani ◽  
Hariyadi Hariyadi

Increased production of Seabass fish (Lates calcarifer) influences the stocking density used. The purpose of this study was to determine the growth and survival of Seabass (Lates calcarifer) at different densities of low salinity stocking. The study was conductedin May-June 2019 at the Laboratory of Fisheries, University of Muhammadiyah Malang. The material used in the study of Seabass fish (Lates calcarifer) as many as 550 fish with a size of 7 cm and fish feed in the form of B2 Stella. The method used was experimental with a completely randomized design (CRD) with 4 treatments and 3 replications, namely 1 fish/2 L as control (A); 2 fish/2 L (B); 3 fish/2 L (C); 4 fish/2 L (D). Data analysis used anova(P <0.05) and tested further with the Least Significant Difference Test of 5%. The results showed that treatment B (51 ± 2 fish/2 L) produced a specific growth rate of length and weight, survival rate, efficiency of feed utilization, and feed conversion ratio which was better than treatment A (67 ± 1 fish/2L (control)), C (44 ± 3 fish/2 L and D (38 ± 4 fish/2 L).


2021 ◽  
Vol 890 (1) ◽  
pp. 012027
Author(s):  
K Ahmad ◽  
Yuliana ◽  
R Amin ◽  
A Syazili ◽  
Surahman

Abstract Aquaculture has been known as one of solutions in dealing with food security problem through applying best practices of aquaculture and increasing fish production. In many countries, fish production is considered an essential activity contributing to household income and trade. However, fish feed has an expensive price, and it constitutes 60-70% total cost of production. The objective of this study is to reveal an alternative cheap source for additional ingredients to fish diet formulation of Tilapia larvae (Oreochromis niloticus). 240 fish larvae from local hatchery were used and cultured in 4 aquariums with different dose of protein diet (30%, 35%, 40%, and control). The source of protein diet is Polychaeta Nereis sp which was collected from surrounding Kastela Sea. Nereis sp was processed into dry meal and was added into the feed formulation. The result shows that the useful of 40% protein of Nereis sp gives the highest growth and survival rate of tilapia larvae, which is 44,99 g and 100%. It is followed by 35% and 30% Nereis protein, respectively. It is interesting that protein control which is feed commercial has almost similar growth level as the highest one. Specific growth rate (SGR) is 3,74%-3,79% per day for different protein dose of Polychaeta. Survival rate is 100% for all treatments which means all fish can survive and growth continuously from beginning to the end of the study.


2016 ◽  
Vol 1 (3) ◽  
pp. 81
Author(s):  
Idham Sumarto Pratama ◽  
Sri Juwana ◽  
Sandi Permadi

<strong>Determination of Calcium Concentration in Formulated Feed for Early Zoea Crab Scylla paramamosain.</strong> Calcification process of the new shell during postmoulting of crab fries needs calcium from food and water in the environment. However, the digestive enzymes in the early phase of zoea have not functioned perfectly yet, so the artificial feed given in the ration of crab fries may be less digestable. Therefore, in this study Enzyplex (commercial enzyme) was added to the formulated feed for rearing of crab fries (zoea at early phase). The purpose of this study was to determine the effect of calcium addition into the formulated feed on the growth and survival of mud crab Scylla paramamosain Zoea. The study was conducted in August 2015 for 3 days. Zoea were kept in ecoplast containers with a stocking density of 50 ind / L. Calcium-D Kalzana was added as much as 0 mg/g (A), 50 mg/g (B), 100 mg/g (C), 150 mg/g (D ), and 200 mg/g (E) per batter (34.50 g) of  formulated feed, with 9 replications for each treatment. All ecoplast containers were placed in a waterbath at 30°C. The results show that the addition of calcium at a dose of 50 mg/g can successfully support the growth of Zoea I into Zoea II (66%) with the highest survival rate (7.6 ± 4.98%). The size of cephalothorax (597.69 ± 65.81 m), abdomen ( 1135.39 ± 126.47 m), and telson (409.23 ± 61.80 m) are shown to be larger than the other four treatments.<br /><br />


2012 ◽  
Vol 10 (1) ◽  
pp. 169-174
Author(s):  
I Siddika ◽  
M Das ◽  
K R Sumi

A four week experiment was conducted to evaluate the effect of isoproteinous (35%) feed prepared named diet 1, 2, 3 and 4 respectively by substituting 0%, 50% , 75% and 100% fish meal with meat and bone meal in view of preparing a cost effective tilapia (Oreochromis niloticus) fry feed. The four experimental diets (diet 1 to 4) each were randomly assigned to twelve hapas with three replications. Tilapia fry (0.011g) were randomly stocked in 100 fry/9ft² hapa and fed five times a day up to their apparent satiation. The results of the study showed that the weight gain, specific growth rate (SGR), the apparent net protein utilization value and survival (%) of the fish were significantly  (P<0.05) higher and better feed utilization with lower FCR value was observed in fish fed on the diet 4 where meat and bone meal was used as sole source of protein base. There was no significant difference between the carcass moisture and lipid of fish fed with different experimental diets. The results of the study indicated that diet 1 containing fish meal (45.15% Fish meal, 27.43% Rice bran and 27.43% Wheat flour) can be replaced by meat and bone meal containing diet 4 (54.06% Meat and bone meal, 22.97% Rice bran and 22.97% Wheat flour) with no adverse effects on growth and survival of O. niloticus. Before recommendation several trials will be necessary in different farms to be  sure of the reproducibility of the result obtained in the present experiment. Cost- benefit analysis reveals that the   meat and bone meal containing diet certainly provides cheaper feed.   DOI: http://dx.doi.org/10.3329/jbau.v10i1.12110   J. Bangladesh Agril. Univ. 10(1): 169–174, 2012  


Jurnal MIPA ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 160
Author(s):  
Aprelia Martina Tomasoa ◽  
Deidy Azhari

Laju pertumbuhan dan tingkat reproduksi yang tinggi merupakan karakteristik unggul yang dimiliki ikan nila sebagai komoditi budidaya. Tingkat reproduksi yang tinggi menyebabkan terjadinya pematangan gonad sebelum mencapai ukuran produksi dimana hal tersebut dapat merugikan pembudidaya, karena saat ikan mengalami matang gonad energi hasil asimilasi pakan sebagain besar akan dialokasikan untuk perkembangan gonad dan menghambat pertumbuhan somatik. Pemanfaatan senyawa aktif dari bahan alami biji pepaya dapat menjadi solusi untuk meningkatkan pertumbuhan ikan yang dibudidayakan sekaligus menjaga keamanan pangan dan konsumen. Penelitian ini bertujuan untuk mengetahui pemanfaatan tepung biji pepaya terhadap respons pertumbuhan dan tingkat kelangsungan hidup ikan nila. Ikan nila diberi perlakuan dengan lima dosis tepung biji pepaya berbeda (0, 1, 3, 5 dan 7 g/kg pakan) secara oral berdasarkan feeding rate 5% dengan tiga ulangan selama 30 hari pemeliharaan. Hasil penelitian menunjukkan dosis 5 g/kg meningkatkan pertumbuhan bobot tubuh tertinggi sebesar 547 g dibandingkan kontrol sebesar 406 g. Sejalan dengan pertumbuhan bobot tubuh, dosis 5 g/kg menghasilkan tingkat kelangsungan hidup ikan nila sebesar 100% dibandingkan kontrol sebesar 66%. Dari hasil yang diperoleh dapat disimpulkan bahwa tepung biji pepaya dengan dosis 5 g/kg pakan dapat meningkatkan pertumbuhan dan tingkat kelangsungan hidup ikan nila selama 30 hariHigh growth rate and high reproductive cycle are some economical triats on nile tilapia. This is a setback for nile tilapia culture because when the fish reach gonad maturity before reach market size, all the energy demand will flow to reproduction and can cause stunt growth. The utilization of natural compound from papaya seeds can be a solution to enhance growth of farmed nile tilapia and for consumer and food safety. This research aim to know how papaya seed powder can enhance growth and survival rate of nile tilapia. This research conducted into five groups of 5 papaya seeds powder dosage (0, 1, 3, 5 and 7 g/kg) that feed orally to the treatment fishes. Result showed the fishes feed with 5 g/kg papaya seed experienced highest growth performance 547 g compare to control which is 406 g. Same as growth performance, survival rate shown that group feed with 5 g/kg papaya seed had 100% survival rate compare with control which is 66% during treatment periods. Base on this result, we can make conclusion that fish feed with 5 g/kg of papaya seed have a better growth performance and survival rate compare with control group for 30 days treatment periods


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