scholarly journals Effect of different levels of fermented rice bran for the growth of jelawat, Leptobarbus hoevenii

2018 ◽  
Vol 10 (2) ◽  
pp. 81-86
Author(s):  
HENDRY YANTO ◽  
JUNIANTO JUNIANTO ◽  
RITA ROSTIKA ◽  
YULI ANDRIANI ◽  
UJANG HIDAYAT TANUWIRIA

Yanto H , Junianto , Rostika R, Andriani Y, Tanuwiria UH. 2018. Effect of different levels of fermented rice bran for the growth of jelawat, Leptobarbus hoevenii. Nusantara Bioscience 10: 81-86. The prime objective of this study is to find the optimum level of fermented rice bran in diets beneficial to improve the digestive enzyme activity, growth and feed efficiency for jelawat (Leptobarbus hoevenii Bleeker). Different levels of fermented rice bran in the diets, i.e., A1 (10%), A2 (20%), A3 (30%), A4 (40%), and A5 (10% non-fermented rice bran), as well as A6 (10% commercial diet) was designed as a treatments during the study. The experimental diets with the same protein (isonitrogenous) and energy (isocaloric) were fed to jelawat fingerlings with an average of 32.57±0.15 g per fish. The results showed that amylase activities were significantly increased with the increased level of fermented rice bran levels in the diets and it was significantly different among the treatments (P<0,05). Proteins and lipids contents of the body and their retention rate, daily growth rates, and feed efficiencies were also significantly different among the treatments (P<0.05). It was concluded from the present investigation that up to 30% of fermented rice bran in the diet was best for jelawat with an optimum level of 25.66-26.78% for the growth performance and feed efficiency of jelawat.

2017 ◽  
Vol 9 (4) ◽  
pp. 378-384
Author(s):  
HENDRY YANTO ◽  
JUNIANTO JUNIANTO ◽  
RITA ROSTIKA ◽  
YULI ANDRIANI ◽  
DEDI JUSADI

Yanto H, Junianto, Rostika R, Andriani Y, Jusadi D. 2017. Different levels of the fermented yellow cornmeal in diets for jelawat, Leptobarbus hoevenii. Nusantara Bioscience 9: 378-384. This research aimed to determine the optimum level of fermented yellow cornmeal in diets to improve the digestive enzyme activity, material digestibility coefficient, growth and feed efficiency for jelawat (Leptobarbus hoevenii Bleeker). The experimental treatments respectively used the fermented yellow cornmeal level of A1 (10%), A2 (20%), A3 (30%), A4 (40%), and two control groups of A5 (10% of unfermented yellow corn meal) and A6 (commercial diet). The experimental diets with the same protein (isonitrogenous) and energy (isocaloric) were given to jelawat with an average size of 32.51±0.21 g per fish. The results showed that α-amylase activity and carbohydrate digestibility value of the fermented yellow cornmeal increases along with the increasing feed levels. Protein and lipid of the body, retention of protein and lipid, daily growth rate and feeding efficiency were significantly different from each treatment (P<0.05). The fermented yellow cornmeal containing a level of 30% in the diet was the best for jelawat with an optimum level of 28.21-32.28% for the growth performance and feed efficiency of jelawat.


2007 ◽  
Vol 6 (2) ◽  
pp. 161
Author(s):  
Mia Setiawati ◽  
N.R. Azwar ◽  
I. Mokoginta ◽  
R. Affandi

<p>This experiment was conducted to determine the dietary zinc requirement of young giant gouramy. Five experimental diets were used in this experiment containing iso-nitrogenous and iso-energy with different levels of zinc (0, 25, 50, 100, and 200 mg per kg). The initial means of body weight of body the fishes was 0.82 g per individual. The fishes were fed upon the diets at satiation, three times daily, for 12 weeks. The results indicated no zinc deficiency symptoms in this experiment. The daily growth rate, feed efficiency, survival rates and protein and lipid retention were not significantly different from all the diets. However, fish fed upon 25 mg Zn/kg diets produced the highest protein and total digestibility. The zinc contents of 25 mg Zn/kg diets gave the highest value in zinc accumulation in the bone, blood serum and eyes. The highest accumulation of the zinc in the liver occurred in 50 mg Zn/kg diets. There was increase in zinc content of the tissues after increasing levels of dietary zinc. Thus, Zn requirement for juvenile of giant gouramy was 25-50 mg/kg diets.</p> <p>Keywords: <em>Osphronemus gouramy</em>, Zinc, diet</p> <p> </p> <p>ABSTRAK</p> <p>Penelitian ini dilakukan untuk mengetahui kebutuhan seng dalam pakan untuk benih ikan gurame.  Lima jenis pakan percobaan yang diuji mengandung iso-nitrogen dan iso-energi dengan kadar seng (Zn) yang berbeda (0, 25, 50, 100, and 200 mg per kg).  Bobot rata-rata benih yang digunakan adalah 0,82 g per ekor.  Ikan dipelihara selama 12 minggu dan diberi pakan 3 kali sehari.  Hasil penelitian menunjukkan bahwa tidak ada gejala defisiensi Zn.  Laju pertumbuhan harian, efisiensi pakan, kelangsungan hidup dan rentesi protein dan lemak tidak berbeda nyata untuk semua perlakuan.  Namun demikian, ikan yang diberi Zn sebanyak 25 mg/kg pakan menghasilkan kecernaan total dan protein tertinggi.  Perlakuan tersebut juga menghasilkan akumulasi Zn tertinggi dalam tulang, serum darah dan mata.  Akumulasi Zn tertinggi dalam hati diperoleh pada perlakuan 50 mg Zn/kg pakan.  Kandungan Zn dalam jaringan meningkat sejalan dengan meningkatnya kadar Zn dalam pakan. Dengan demikian, kebutuhan Zn bagi benih ikan gurame adalah sebanyak 25-50 mg /kg pakan.</p> Kata kunci: <em>Osphronemus gouramy</em>, seng, pakan


2006 ◽  
Vol 2006 ◽  
pp. 35-35
Author(s):  
M Toghyani ◽  
M Shivazad ◽  
S H Zarkesh ◽  
A A Gheisari

High ambient temperature reduces feed intake, live weight gain, and feed efficiency (Siegel, 1995), thus negatively influencing the performance of broilers. Heat stress has also been shown to suppress immune responses of broiler. Chromium is an essential nutrient required to promote the action of insulin in body tissues so that the body can use sugars, proteins and fats. Cr deficiency can disrupt carbohydrate and protein metabolism, reduce insulin sensitivity in peripheral tissues and impair growth rate (Vincent, 2000).Chromium is important in altering the immune response by immunostimulatory or immunosuppressive processes as shown by its effects on T and B lymphocytes, macrophages and cytokine production. Dietary chromium supplementation has been reported to have a positive effect on growth rate and feed efficiency of growing poultry under stress conditions (Sahin et al., 2002). Another reason for supplementing chromium is due to the fact that chromium is excreted excessively during stress (Anderson, 1994). Also the dietary requirement of livestock for chromium has not been defined yet (NRC, 1997). This study was to investigate the effects of different levels of Cr nicotinate on the growth performance and antibody titres against Newcastle and Influenza disease in broilers.


2009 ◽  
Vol 4 (1) ◽  
pp. 65
Author(s):  
Lies Emmawati Hadie ◽  
Wartono Hadie ◽  
Tri Heru Prihadi

Pertumbuhan udang galah dibatasi oleh kulitnya yang bersifat tidak elastis, karena terdiri atas khitin. Agar udang galah tumbuh dengan baik, maka harus ada unsur mineral dalam pakannya. Salah satu mineral yang bersifat esensial adalah mineral kalsium. Kalsium mempunyai fungsi dalam pembentukan tulang, jaringan lunak, proses regulasi dalam tubuh, dan menjaga keseimbangan asam basa. Oleh karena peran penting dari kalsium tersebut, maka dilakukan penelitian mengenai efek mineral kalsium dalam ransum pakan udang galah terhadap pertumbuhannya. Hewan uji yang digunakan pada penelitian ini adalah yuwana udang galah dengan kisaran bobot 56,0 ± 3,0 mg. Rancangan penelitian menggunakan Rancangan Acak Lengkap dengan perlakuan yang diterapkan adalah kalsium 1,0%; 3,0%; 5,0%; 7,0%; dan 0,0% sebagai kontrol. Setiap perlakuan mendapat 3 ulangan. Hasil penelitian ini menunjukkan bahwa kadar kalsium dalam ransum pakan sangat mempengaruhi laju pertumbuhan harian udang galah (P<0,05). Kadar kalsium yang optimal dalam ransum pakan udang galah adalah sebesar 3,46%.The growth of giant prawn is limited by a non elastic material called chitin, which is a limiting factor in its growth. Feed containing mineral is needed to improve its growth. One of the essential minerals is calcium. The function of calcium is essential in bone and soft tissue formations, acid balancing, and regulation processes in the body. Because of its benefits, the research on the calcium effect on giant prawn was conducted. The aims of this study was to know the effect of calcium on the growth rate of giant prawn juvenile. Test animals were juveniles of giant prawn with average weight of 56.0 ± 3.0 mg. Research design employed complete randomized design with five calcium mineral treatments as follows:1.0%, 3.0%, 5.0%, 7.0%, and 0.0% as control. Each treatment has three replications. The result showed that calcium affected the daily growth rate of giant prawn (P<0.05). The calcium dosage of 3.46% is the optimum level for giant prawn juvenile.


2017 ◽  
Vol 7 (4) ◽  
pp. 46-50
Author(s):  
M. J. Kryvenok ◽  
I. I. Ilchuk ◽  
V. M. Mykhalska

<p>An effective level of glycine in the diets of replacement chicks has been experimentally established at different periods of their breeding. The influence of different levels of glycine in the mixed fodders of replacement chicks on their growth and development was investigated. It was established that replacement chicks with effective level of glycine in their rations at the end of the growing period had more weight by 167 g than chicks from the control group; this value was nevertheless within the limits recommended by the developer of the cross. We also studied the influence of different glycine levels in mixed fodder of young egg chicks on the digestibility of the nutrients, the balance of nitrogen and amino acid during the whole period of chicks’ growth. It was established that the optimum level of glycine in different growing periods contributed to an increase of protein digestion by 2 percent, fat – 2 percent, fiber – 2 percent, and BER – 1 percent, compared to the control birds. The chicks’ balance of nitrogen was studied and its positive trend was registered for the poultry of all groups. Reducing the amount of glycine in chicken diets as well as its excess leads to a decrease of nitrogen contamination in their bodies. The level of glycine content in chick bodies negatively correlated with its content in the diet. This level was the smallest in animals with excessive levels of glycine in their diet, which in turn led to a decrease in its absorption. Based on the patterns of dietary glycine needs of chickens throughout the entire period of their breeding and its effect on their growth, development, digestibility of nutrients in the body, and balance of nitrogen and investigated amino acids, we calculated the linear regression equation that can be applied in the operational control or in composing of the poultry diet.</p>


2017 ◽  
Vol 16 (2) ◽  
pp. 147
Author(s):  
Noviati Rohmatul Khasanah ◽  
Nur Bambang Priyo Utomo ◽  
Mia Setiawati ◽  
Munti Yuhana

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">The study was conducted to evaluate the performance of catfish fry grown using different dietary protein levels in the biofloc-base aquaculture system. Experiments using a completely randomized design, consisted of four treatments and three replications. The treatment consisted of:  protein 38% (A), 34% protein (B), 30% protein (C), and protein 26% (D). Catfish with initial weight of 0.83±0.01 g and length of 4.64±0.04 cm were cultured in 60 L tank with density of 90 fish each tank for 35 days. Inoculation of heterotrophic bacterial <em>Staphylococcus lentus</em> L1k were performed of 104 CFU/mL ratio of 15 was administrated once a day after two hours feeding in the morning. Feeding was conducted twice a day at 5% of the biomass weight. At the end of trial treatment (D) showed the highest survival rate (88.15±5.25%), the body lenght variance coefficient (9.58±0.51%) and protein retention (39.87±2.77%). Treatment (B) showed the highest growth rate (4.11±0.05%), total length (2.39±0.08 cm), and feed intake (318.76±4.63). Treatment (A) showed the highest feed efficiency (93.65±4.43%) while lowest lipid retention compared to others (22.20±1.20%.). Based on the results, it can be concluded that 34% protein feed (C) can replace 38% protein feed (B) catfish fry size 4−5 cm through biofloc-based system.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: biofloc, fry, growth, protein, <em>Staphylococcus lentus</em> L1k</p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong><br /></strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Penelitian bertujuan mengevaluasi kinerja pertumbuhan benih lele dengan menggunakan kadar protein pakan yang berbeda pada sistem bioflok. Percobaan dilakukan menggunakan rancangan acak lengkap, terdiri atas empat perlakuan dan tiga ulangan. Perlakuan terdiri atas protein 38% (A), protein 34% (B), protein 30% (C), dan protein 26% (D), terdiri atas empat perlakuan dan tiga ulangan. Benih lele dengan berat rata-rata 0,83±0,01 g dan panjang rata-rata 4,64±0,04 cm dipelihara di akuarium berukuran 90×50×40 cm3 dengan padat tebar 90 ekor/akuarium selama 35 hari. Inokulasi bakteri heterotrof berupa <em>Staphylococcus lentus</em> L1k dilakukan pada setiap perlakuan kepadatan 104 CFU/mL. Penambahan sumber karbon berupa molase dengan C/N (Carbon/Nitrogen) rasio 15 diberikan satu kali sehari setelah dua jam pemberian pakan di pagi hari. Pakan diberikan dua kali sehari sebanyak 5% dari berat biomasa. Hasil penelitian menunjukkan pemberian kadar protein pakan berbeda memberikan hasil yang positif. Perlakuan (D) menunjukkan tingkat kelangsungan hidup (88,15±5,25%), koefisien keragaman panjang (9,58±0,51%) dan retensi protein (39,87±2,77%) terbaik. Perlakuan (B) menunjukkan laju pertumbuhan harian (4,11±0,05%), panjang total (2,39±0,08 cm), dan jumlah konsumsi pakan (318,76±4,63) tertinggi. Perlakuan (A) menunjukkan efisiensi pakan (93,65±4,43%) tertinggi namun menunjukkan retensi lemak (22,20±1,20%) terendah. Berdasarkan hasil penelitian disimpulkan bahwa pemberian pakan dengan kadar protein 34% mempunyai performa pertumbuhan yang sama dibandingkan protein 38% pada benih ikan lele berukuran 4−5 yang dipelihara menggunakan sistem budidaya bioflok.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Kata kunci: benih lele, protein, pertumbuhan, bioflok, <em>Staphylococcus lentus</em> L1k</p><p> </p>


2017 ◽  
Vol 16 (2) ◽  
pp. 136
Author(s):  
Noviati Rohmatul Khasanah ◽  
Nur Bambang Priyo Utomo ◽  
Mia Setiawati ◽  
Munti Yuhana

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">The study was conducted to evaluate the performance of catfish fry grown using different dietary protein levels in the biofloc-base aquaculture system. Experiments using a completely randomized design, consisted of four treatments and three replications. The treatment consisted of:  protein 38% (A), 34% protein (B), 30% protein (C), and protein 26% (D). Catfish with initial weight of 0.83±0.01 g and length of 4.64±0.04 cm were cultured in 60 L tank with density of 90 fish each tank for 35 days. Inoculation of heterotrophic bacterial <em>Staphylococcus lentus</em> L1k were performed of 104 CFU/mL ratio of 15 was administrated once a day after two hours feeding in the morning. Feeding was conducted twice a day at 5% of the biomass weight. At the end of trial treatment (D) showed the highest survival rate (88.15±5.25%), the body lenght variance coefficient (9.58±0.51%) and protein retention (39.87±2.77%). Treatment (B) showed the highest growth rate (4.11±0.05%), total length (2.39±0.08 cm), and feed intake (318.76±4.63). Treatment (A) showed the highest feed efficiency (93.65±4.43%) while lowest lipid retention compared to others (22.20±1.20%.). Based on the results, it can be concluded that 34% protein feed (C) can replace 38% protein feed (B) catfish fry size 4−5 cm through biofloc-based system.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: biofloc, fry, growth, protein, <em>Staphylococcus lentus</em> L1k</p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong><br /></strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Penelitian bertujuan mengevaluasi kinerja pertumbuhan benih lele dengan menggunakan kadar protein pakan yang berbeda pada sistem bioflok. Percobaan dilakukan menggunakan rancangan acak lengkap, terdiri atas empat perlakuan dan tiga ulangan. Perlakuan terdiri atas protein 38% (A), protein 34% (B), protein 30% (C), dan protein 26% (D), terdiri atas empat perlakuan dan tiga ulangan. Benih lele dengan berat rata-rata 0,83±0,01 g dan panjang rata-rata 4,64±0,04 cm dipelihara di akuarium berukuran 90×50×40 cm3 dengan padat tebar 90 ekor/akuarium selama 35 hari. Inokulasi bakteri heterotrof berupa <em>Staphylococcus lentus</em> L1k dilakukan pada setiap perlakuan kepadatan 104 CFU/mL. Penambahan sumber karbon berupa molase dengan C/N (Carbon/Nitrogen) rasio 15 diberikan satu kali sehari setelah dua jam pemberian pakan di pagi hari. Pakan diberikan dua kali sehari sebanyak 5% dari berat biomasa. Hasil penelitian menunjukkan pemberian kadar protein pakan berbeda memberikan hasil yang positif. Perlakuan (D) menunjukkan tingkat kelangsungan hidup (88,15±5,25%), koefisien keragaman panjang (9,58±0,51%) dan retensi protein (39,87±2,77%) terbaik. Perlakuan (B) menunjukkan laju pertumbuhan harian (4,11±0,05%), panjang total (2,39±0,08 cm), dan jumlah konsumsi pakan (318,76±4,63) tertinggi. Perlakuan (A) menunjukkan efisiensi pakan (93,65±4,43%) tertinggi namun menunjukkan retensi lemak (22,20±1,20%) terendah. Berdasarkan hasil penelitian disimpulkan bahwa pemberian pakan dengan kadar protein 34% mempunyai performa pertumbuhan yang sama dibandingkan protein 38% pada benih ikan lele berukuran 4−5 yang dipelihara menggunakan sistem budidaya bioflok.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Kata kunci: benih lele, protein, pertumbuhan, bioflok, <em>Staphylococcus lentus</em> L1k</p><p> </p>


Author(s):  
Zainal Abidin Muchlisin ◽  
Fardin Afrido ◽  
Tanzil Murda ◽  
Nur Fadli ◽  
Abdullah A. Muhammadar ◽  
...  

<p>The objective of present study was to determine the optimum level of papain in the diet of <em>keureling </em>fish (<em>Tor tambra</em>). 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<sup>-1</sup>,  20.0 mg kg<sup>-1</sup>, 22.5 mg kg<sup>-1</sup>, 25.0 mg kg<sup>-1</sup> and 27.5 mg kg<sup>-1</sup> 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 papain enzyme  gave a significant effect on the weight gain, daily growth rate, specific growth rate, survival rate, feed conversion ratio and feed efficiency (P&lt;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<sup>-1</sup>. Therefore, it is concluded that the optimum dosage of papain enzyme for <em>keureling</em> fish was 27.5 mg kg<sup>-1 </sup>of feed.</p>


Author(s):  
Sona N. Golder ◽  
Ignacio Lago ◽  
André Blais ◽  
Elisabeth Gidengil ◽  
Thomas Gschwend

Voters face different incentives to turn out to vote in one electoral arena versus another. Although turnout is lowest in European elections, it is found that the turnout is only slightly lower in regional than in national elections. Standard accounts suggest that the importance of an election, in terms of the policy-making power of the body to be elected, drives variation in turnout across elections at different levels. This chapter argues that this is only part of the story, and that voter attachment to a particular level also matters. Not all voters feel connected to each electoral arena in the same way. Although for some, their identity and the issues they most care about are linked to politics at the national level, for others, the regional or European level may offer the political community and political issues that most resonate with them.


2021 ◽  
Vol 7 (s4) ◽  
Author(s):  
Darren James Reed

Abstract In various ways the movement and experience of the body is instructed by others. This may be in the dance class or on the playing field. In these interactions, one person claims knowledge of the other’s body and rights to instruct how that body functions, moves, and feels. By undertaking a close analysis of embodied and spoken interaction within performance training sessions from a multimodal conversation analytic perspective, this paper will identify one kind of broad sequential trajectory – from intimate contact to public display - that shows how an instructor claims rights over the internal workings of another’s body by traversing different levels of proximity and sensorial modalities.


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