scholarly journals The effect of Yucca schidigera extract dietary supplementation on growth performance, feed and protein utilization of European seabass, Dicentrarchus labrax, fingerlings

2019 ◽  
Vol 9 (3) ◽  
pp. 15-31 ◽  
Author(s):  
Bassem Elkhayat ◽  
Abdallah Mansour ◽  
Walied Fayed ◽  
Eglal Omar ◽  
Abdel Aziz Nour
Keyword(s):  
Growth Performance ◽  
Dicentrarchus Labrax ◽  
Dietary Supplementation ◽  
Protein Utilization ◽  
Yucca Schidigera ◽  
European Seabass

scholarly journals Yucca schidigera extract dietary supplementation affects growth performance, hematological and physiological status of European seabass

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Abdallah Tageldein Mansour ◽  
Walied Mohamed Fayed ◽  
Bassem Khalil Elkhayat ◽  
Eglal Ali Omar ◽  
Mohamed A. Zaki ◽  
...  
Keyword(s):  
Growth Performance ◽  
Blood Cells ◽  
Hematological Parameters ◽  
White Blood Cells ◽  
Dietary Supplementation ◽  
Economic Benefits ◽  
Feed Additive ◽  
Physiological Status ◽  
Yucca Schidigera ◽  
European Seabass

Abstract The study herein evaluated the effects of dietary supplementation with different Yucca (Yucca schidigera) extract levels on rearing water quality, growth performance, protein utilization, hematological and immunological status, and economic benefits of cultured European seabass (Dicentrarchus labrax) juveniles. Yucca extract (YE) was incorporated in an experimental diet at levels of 0, 0.25, 0.50, and 1 g YE kg−1, and offered to fish reared in 70-L glass aquaria (15 fish per aquarium; three replicates each). Dietary YE supplementation significantly (p < 0.05) decreased ammonia-nitrogen levels in water. Compared with the control, groups fed 0.50 and 1 g YE kg−1 diets showed improved growth performance (by 26.02% and 36.98%, respectively) and protein efficiency ratio (by 31.39% and 37.29%, respectively). In addition, hematological parameters (red blood cells, hemoglobin, hematocrit, white blood cells and neutrophil) and innate immune parameters (globulin fractions and lysozyme activity) improved with increasing dietary YE levels. Growth, hematological, and immunological parameters increased with a polynomial second-order regression models, with curves peak close to 1 g YE kg−1 diet. The cortisol level decreased significantly (p < 0.05) with increasing dietary YE levels. The groups fed the 0.50 and 1 g YE kg−1 diets generated significantly (p < 0.05) higher revenue than groups fed the 0.25 g YE kg−1 and the control diets. The using of YE is recommended as a dietary feed additive at a level of 1 g kg−1 for reducing the environmental footprint of fish protein production, accelerating growth, and improving health status of cultured seabass in a short-term feeding period.

scholarly journals Dietary supplementation of organic selenium to improve growth performance and protein utilization in African catfish fed with different protein level diets

2021 ◽  
Vol 20 (2) ◽  
pp. 130-138
Author(s):  
Giri Maruto Darmawangsa ◽  
Muhammad Agus Suprayudi ◽  
Nurbambang Priyo Utomo ◽  
Julie Ekasari
Keyword(s):  
Growth Performance ◽  
Dietary Protein ◽  
Protein Level ◽  
Dietary Supplementation ◽  
High Protein ◽  
Utilization Efficiency ◽  
African Catfish ◽  
Protein Utilization ◽  
Organic Selenium ◽  
Protein Levels

This study aimed to evaluate the effect of organic selenium supplementation on diet with different protein levels on the growth performance and protein utilization of African catfish juvenile. A randomized 2×3 factorial design with two dietary protein levels (27% and 32%) and three dietary selenium (Se) supplementation levels (0 mg/kg, 3 mg/kg, and 6 mg/kg diet) in triplicates were applied in the study. African catfish juvenile with an initial average body weight and body length of 27.00 ± 0.14 g and 15.0 ± 0.5 cm, respectively, was reared in 18 units of aquarium (141 L) at a density of 142 fish/m3 for a rearing period of 40 days. Increasing organic Se supplementation level up to 6 mg/kg at high protein feed resulted in higher fish growth and final biomass, lower FCR, and higher protein utilization efficiency than those of other treatments.  Furthermore, supplementation of organic Se also resulted in lower lipid and higher Se concentrations in the fish body as well as higher blood protein level compared to those of the control. In conclusion, the result of this study suggested that dietary supplementation of organic Se up to 6 mg/kg could enhance the growth and protein utilization in African catfish fed with both low and high protein diet.   Keywords: African catfish, growth, dietary protein, protein utilization, organic selenium.   ABSTRAK   Penelitian ini bertujuan mengevaluasi pengaruh suplementasi selenium organik pada pakan dengan kadar protein yang berbeda terhadap kinerja pertumbuhan dan pemanfaatan protein pakan ikan lele Clarias gariepenus. Penelitian didesain menggunakan rancangan acak lengkap faktorial 2×3 dengan dua tingkat protein pakan (27% dan 32%) dan tiga tingkat suplementasi selenium (Se) pakan (0 mg/kg, 3 mg/kg, dan 6 mg/kg diet) sebanyak tiga ulangan. Ikan lele yang digunakan memiliki bobot awal rata-rata dan panjang tubuh 27 ± 0.14 g dan 15.0 ± 0.5 cm, dipelihara dalam 18 unit akuarium (141 L) dengan kepadatan 142 ekor/m3 selama 40 hari pemeliharaan. Peningkatan suplementasi Se organik hingga 6 mg/kg pada ikan yang diberi pakan protein tinggi menghasilkan kinerja pertumbuhan ikan dan biomassa akhir yang lebih tinggi, FCR yang lebih rendah, dan efisiensi pemanfaatan protein pakan yang lebih tinggi daripada perlakuan lain. Selain itu, suplementasi Se organik juga menghasilkan kadar lemak yang lebih rendah dan konsentrasi Se tubuh yang lebih tinggi serta kadar protein darah yang lebih tinggi. Kesimpulan dari penelitian ini yaitu suplementasi Se organik pada pakan hingga 6 mg/kg dapat meningkatkan kinerja pertumbuhan dan pemanfaatan protein pakan pada ikan lele yang diberi pakan dengan kadar protein rendah dan tinggi.   Kata kunci: ikan lele, pertumbuhan, protein pakan, pemanfaatan protein, selenium organik.

Dietary Supplementation of Enzymes for Promoting the Growth Performance and Health Of European Sea Bass (Dicentrarchus labrax)

2020 ◽  
Vol 67 (2) ◽  
pp. 65
Author(s):  
Dalia Maadawy ◽  
Ryad Khalil ◽  
No author No author ◽  
Abd latif ◽  
H R ◽  
...  
Keyword(s):  
Growth Performance ◽  
Dicentrarchus Labrax ◽  
Dietary Supplementation ◽  
Sea Bass ◽  
European Sea Bass

scholarly journals Evaluation of protein sparing effect in Nile tilapia Oreochromis niloticus fed with organic selenium supplemented diet

2020 ◽  
Vol 19 (1) ◽  
pp. 84-94
Author(s):  
Christian Ernsz Pattipeilohy ◽  
Muhammad Agus Suprayudi ◽  
Mia Setiawati ◽  
Julie Ekasari
Keyword(s):  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Dietary Supplementation ◽  
Selenium Supplementation ◽  
Protein Utilization ◽  
Organic Selenium ◽  
Protein Sparing ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Sparing Effect

ABSTRACT   The objective of this research was to determine the optimum level of organic selenium supplementation in improving the growth performance of Nile tilapia Oreochromis niloticus fed with diet containing low protein level. Basal diet was formulated to contain 28% protein with three different levels of organic selenium supplementation, namely 0 (control), 3, and 6 mg Se/kg feed. Furthermore, to evaluate selenium function on protein utilization and sparring effect, a diet with 30% of protein content was also used as a comparison. In this regard, this study was conducted using a completely randomized experimental design with four treatments and three replications. Nile tilapia with an average body weight of 8.05 ± 0.25 g were reared in the 100×50×50 cm3 aquarium at a density of 15 fish/aquarium. The experimental fish were reared for 60 days and fed three times daily to apparent satiation levels. Dietary supplementation of organic Se resulted in higher fish biomass, lower feed conversion ratio, higher protein retention and daily growth rate compared to the control diets with 28% and 30% protein levels. In conclusion, dietary supplementation of organic Se at 3 mg organic Se/kg feed could significantly increase protein utilization and improve the growth performance of Nile tilapia.   Keywords: tilapia, protein sparing effect, organic selenium, feed   ABSTRAK   Tujuan dari penelitian ini adalah menentukan tingkat suplementasi selenium organic pada pakan untuk meningkatkan kinerja pertumbuhan ikan nila Oreochromis niloticus. Pakan basal diformulasikan mengandung 28% protein dengan tiga tingkat selenium organik yaitu 0 (kontrol), 3, dan 6 mg Se/kg pakan. Selanjutnya untuk mengevaluasi penggunaan selenium pada pemanfaatan protein dan efek sparring, pakan dengan 30% protein juga ditambahkan sebagai perlakuan pembanding. Penelitian ini menggunakan rancangan acak lengkap dengan empat perlakuan dan tiga ulangan. Ikan nila dengan bobot rata-rata adalah 8.05 ± 0.25 g dipelihara dalam akuarium 100 × 50 × 50 cm3 dengan kepadatan 15 ikan/akuarium. Ikan dipelihara selama 60 hari dan diberi pakan tiga kali sehari secara at satiation. Pemberian pakan dengan suplementasi Se organic menghasilkan biomassa ikan yang lebih tinggi, rasio konversi pakan yang lebih rendah, retensi protein dan laju pertumbuhan harian yang lebih tinggi daripada perlakuan control dengan kadar protein 28% dan 30%. Berdasarkan hasil penelitian ini, dapat disimpulkan bahwa suplemtasi pakan ikan nila dengan 3 mg Se organik/kg pakan dapat meningkatkan pemanfaatan protein pakan dan kinerja pertumbuhan ikan Nila.   Kata kunci: ikan nila, protein sparing effect, selenium organik, pakan.

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