scholarly journals Effects of dietary protein and carbohydrate levels on growth performance, feed utilization efficiency and nitrogen metabolism in rohu, Labeo rohita (Hamilton), fingerlings

2001 ◽  
Vol 31 (2) ◽  
pp. 3-17 ◽  
Author(s):  
Subhra Dalal ◽  
Samir Bhattacharya ◽  
Arun Kumar Ray
Keyword(s):  
Growth Performance ◽  
Nitrogen Metabolism ◽  
Dietary Protein ◽  
Labeo Rohita ◽  
Feed Utilization ◽  
Utilization Efficiency ◽  
Carbohydrate Levels ◽  
Feed Utilization Efficiency

scholarly journals Dietary supplementation of betain to improve the growth and feed utilization in hybrid grouper (Epinephelus lanceolatus♂ × Epinephelus fuscoguttatus♀) juvenile

2021 ◽  
Vol 20 (1) ◽  
pp. 24-33
Author(s):  
Idul La Muhamad ◽  
Mia Setiawati ◽  
Wiyoto Wiyoto ◽  
Julie Ekasari
Keyword(s):  
Growth Performance ◽  
Ammonia Excretion ◽  
Feed Utilization ◽  
Utilization Efficiency ◽  
Antioxidative Status ◽  
Hybrid Grouper ◽  
Randomized Experimental Design ◽  
Epinephelus Fuscoguttatus ◽  
Feed Utilization Efficiency ◽  
Betaine Supplementation

Betaine plays some important roles in feed utilization and fish metabolism. The aim of this study was to evaluate the effect of dietary betaine supplementation on the growth performance and feed utilizationin hybrid grouper (Epinephelus lanceolatus♂ × Epinephelus fuscoguttatus♀). A completely randomized experimental design with four dietary levels of betaine, i.e.0.0%, 0.5%, 1.0%, and 2.0% in quadruplicate was done.Hybrid grouper juvenile obtained from Brackishwater Aquaculture Development Center, Situbondo, with an initial body length and body weight of 5.89 ± 0.05 cm and 2.86 ± 0.09 g, respectively was used as the tested animal. The fish was maintained in 60 cm x 40 cm x 40 cm aquaria with 75 L working capacity with individual recirculating system with a fish density of 15 fish/aquarium for 50 days. Experimental diet was provided to apparent satiation twice a day. The results of this study demonstrated that dietary betaine at a level of 0.5% resulted in higher feed utilization efficiency, protein and methionine retentions, and growth performance and lower ammonia excretion than those of the control (P<0.05). Higher antioxidative status was indicated by the lower malondialdehyde (MDA) in the liver of fish fed with betaine supplemented diets at levels of 1 - 2%. In conclusion, betaine supplementation of 0.5% could increase feed utilization efficiency and growth performance of hybdrid grouper.   Keywods: Betaine, Hybrid Grouper, Growth Performance, Feed, Antioxidative Status ABSTRAK Betain memegang beberapa peranan penting dalam pemanfaatan pakan dan metabolisme pada ikan. Penelitian ini bertujuan untuk mengevaluasi pengaruh suplementasi betain pada pakan terhadap kinerja pertumbuhan dan pemanfaatan pakan pada juvenil ikan kerapu hybrid cantang (Epinephelus lanceolatus♂ × Epinephelus fuscoguttatus♀). Penelitian menggunakan rancangan acak lengkap dengan empat perlakuan pakan dengan tingkat suplementasi betain yang berbeda, yaitu 0.0%, 0.5%, 1.0%, dan 2.0% dengan empat ulangan. Juvenil ikan kerapu cantang yang berasal dari Balai Pengembangan Budidaya Laut Situbondo dengan panjang dan bobot awal masing-masing 5.89 ± 0.05 cm and 2.86 ± 0.09 g digunakan sebagai hewan uji dalam penelitian ini. Ikan dipelihara dalam akuarium berukuran 60 cm x 40 cm x 40 cm dengan kapasitas 75L yang dilengkapi dengan sistem resirkulasi individu dengan kepadatan 15 ekor per akuarium selama 50 hari. Pakan uji diberikan hingga sekenyangnya dua kali sehari. Hasil penelitian ini menunjukkan bahwa suplementasi betain sebanyak 0.5% menghasilkan pemanfaatan pakan, retensi protein, retensi metionina, kinerja pertumbuhan dan ekskresi ammonia yang lebih baik daripada kontrol (P<0.05). Status antioksidasi yang lebih juga yang ditunjukkan dengan lebih rendahnya konsentrasi malondialdehid (MDA) pada hati ikan yang diberi pakan dengan suplementasi 1-2% betain. Berdasarkan hasil penelitian dapat disimpulkan bahwa suplementasi betain sebanyak 0.5% dapat meningkatkan efisiensi pemanfaatan pakan dan kinerja pertumbuhan ikan kerapu cantang.

scholarly journals PENGARUH KADAR PROTEIN PAKAN YANG BERBEDA DENGAN RASIO E/P 8,5 kkal/g PROTEIN TERHADAP PERTUMBUHAN IKAN NILA (Oreochromis niloticus

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Sefti Wulanningrum ◽  
Subandiyono Subandiyono ◽  
Pinandoyo Pinandoyo
Keyword(s):  
G Protein ◽  
Dietary Protein ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Feed Utilization ◽  
Utilization Efficiency ◽  
Feed Consumption ◽  
Experimental Fish ◽  
Optimal Feed ◽  
Feed Utilization Efficiency

Feed utilization by tilapia (Oreochromis niloticus) was less optimal. Feed utilization efficiency (FUE) by tilapia could be improved by feed them with the suitable E/P ratio value of feed. This studi was aimed to examine the effect of various dietary protein with the E/P ratio of 8,5 kcal/g protein on the growth of nile tilapia. The experimental fish used was nile tilapia with the average body weight of 0,50±0,02 g/fish. The feed was given three times a day i.e. at 8.00 am, 12.00, and 4.00, pm by applied at satiation method. The experimental fish was maintained for 35 days with the density of 1 fish/l. The experiment used was completely randomized design with 4 treatments and 3 replicates. The treatments A, B, C, and D were trial feeds with protein content of 28, 30, 33, and 36% with DE content 240, 255, 280.5, and 306 kcal, respectively. The variables measured were total feed consumption (TFC), ratio efficiency protein (REP), specific growth rate (SGR), and survival rate (SR). The data showed that various dietary protein with equal E/P ratio resulted significantly effect (P<0,05) on FUE, REP, and SGR; but did not significantly effect (P>0,05) on TFC and SR. The TFC values of A, B, C, and D were 17,84±1,24, 18,70±0,28, 17,42±0,53, and 18,65±0,34 g; FUE values were 27,20±2,49, 38,19±3,84, 41,05±1,74, and 44,49±5,60%; REP values were 0,96±0,09, 1,28±0,13, 1,26±0,05, and 1,25±0,16%; and SGR values were 1,46±0,08, 1,94±0,28, 1,95±0,08, and 2,05±0,30%/day. The SR values of A, B, C and D were 100±0,00, 97,78±3,85, 97,78±3,85, and 95,33±4,04%, respectively. It was suggested that the increase of dietary energy and protein with a certain level of E/P ratio could improve the feed utilization efficiency and growth of tilapia

The effect of dietary protein level on pond water quality and feed utilization efficiency of pacuPiaractus mesopotamicus (Holmberg, 1887)

2005 ◽  
Vol 36 (6) ◽  
pp. 546-553 ◽  
Author(s):  
Jose A Bechara ◽  
Juan Pablo Roux ◽  
Federico J Ruiz Diaz ◽  
Carolina I Flores Quintana ◽  
Cecilia A Longoni de Meabe
Keyword(s):  
Water Quality ◽  
Dietary Protein ◽  
Protein Level ◽  
Pond Water ◽  
Feed Utilization ◽  
Utilization Efficiency ◽  
Dietary Protein Level ◽  
Feed Utilization Efficiency
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