scholarly journals Dietary Soybean Lecithin Enhances Growth Performance, Feed Utilization Efficiency and Body Composition of Early Juvenile Milkfish, Chanos chanos

2018 ◽  
Author(s):  
V.L. Jr. Corre ◽  
E.E. Temario ◽  
E.J.G. Mameloco ◽  
M.J.B.B. Pagapulan ◽  
M. Traifalgar ◽  
...  
Keyword(s):  
Body Composition ◽  
Growth Performance ◽  
Soybean Lecithin ◽  
Feed Utilization ◽  
Utilization Efficiency ◽  
Chanos Chanos ◽  
Early Juvenile ◽  
Feed Utilization Efficiency

scholarly journals A Comparison between Chicken Viscera and Housefly Maggot Cultured from this By-products for Nile Tilapia Diets: Growth Performance, Feed Utilization and Whole Body Composition

2020 ◽  
pp. 1-12
Author(s):  
Cayen S. Alofa ◽  
Youssouf Abou
Keyword(s):  
Body Composition ◽  
Growth Performance ◽  
Nile Tilapia ◽  
Feed Utilization ◽  
Utilization Efficiency ◽  
Daily Weight Gain ◽  
Whole Body ◽  
Body Protein ◽  
Fishmeal Replacement ◽  
Chicken Viscera

Aims: The feeding trials were conducted to compare the effects of partial fishmeal replacement by two different animal protein sources on growth performance, feed utilization efficiency and body composition of juvenile Nile tilapia. Place and Duration of Study: The study was carried out at the Aquaculture Research Center, Department of Zoology, Faculty of Sciences and Technics, University of Abomey-Calavi for a period of 84 days. Methodology: Three isonitrogenous and isoenergetic diets were formulated containing fishmeal (CD), chicken viscera meal (CVM) and housefly maggot meal (HMM), as partial fishmeal replacement. Commercial diet Skretting (SK) was used as reference diet. All male Oreochromis niloticus with an average initial body weight of 8.65 g were fed thrice a day to apparent satiation. Each treatment was randomly attributed to three replicates. Results: Fish fed all experimental diets showed no effects (P>.05) on survival rate (91.33-96.00 %), condition factor (1.85-1.9), protein efficient ratio (2.05-2.37) and feed conversion ratio (1.21-1.40), although higher values were observed with control diets. Final mean weight and daily weight gain of fish fed HMM diet (88.31 g ; 0.95 g. days-1) were not significantly different from those fed control diets C (88.54 g; 0.95 g/j) and Sk (87.59 g; 0.94 g/j) respectively. Growth performances significantly decreased (P<.05) in CVM group (75.09 g; 0.75 ± g/j). Whole-body protein contents were similar in all groups, whereas lipid content was highest in those fed CVM. Conclusion: The results indicated that 200 g fishmeal per kilo diet can be successfully replaced with 250 g.Kg-1 of HMM without adverse effect on growth and feed utilization whereas CVM inclusion did not perform also well. 

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.

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