Effects of dietary supplementation with benthic diatom Amphora coffeaeformis on blood biochemistry, steroid hormone levels and seed production efficiency of Nile tilapia Oreochromis niloticus broodstock.
- 2024-06-16
- Journal of animal physiology and animal nutrition 108(6)
- Mohamed Mabrouk
- Mohamed Ashour
- Mohamed F Abdelghany
- Mohamed A Elokaby
- Abdel-Wahab A Abdel-Warith
- Elsayed M Younis
- Simon Davies
- Ehab El-Haroun
- Ahmed G A Gewida
- PubMed: 38879794
- DOI: 10.1111/jpn.14004
Study Design
- Sample size
- n = 384
- Population
- 384 adult Nile tilapia (288 females and 96 males)
- Methods
- Fish were fed one of four dietary treatments: AM0% (control), AM2%, AM4%, and AM6% enriched with diatom A. coffeaeformis at 20, 40, and 60 g/kg of diet, respectively, with three replicate tanks per treatment, throughout a 14-day spawning cycle until egg harvest.
- Duration
- 14 days
- Funding
- Unclear
- Animal Study
Aquafeed additive quality and quantity remain pivotal factors that constrain the sustainability and progress of aquaculture feed development. This study investigates the impact of incorporating the benthic diatom Amphora coffeaeformis into the diet of Nile tilapia (Oreochromis niloticus) broodstock, on the blood biochemistry, steroid hormone (SH) levels and seed production efficiency. Broodstock females displaying mature ovary indications were initially combined with males at a ratio of three females to one male. A total of 384 adult Nile tilapia (288 females and 96 males) were used, with 32 fish (24 females and eight males) assigned to each of 12 concrete tanks (8 m³; 2 m × 4 m × 1 m), with three replicate tanks for each dietary treatment, throughout a 14-day spawning cycle until egg harvest. Fish were fed one of four different dietary treatments: AM0% (control diet), and AM2%, AM4% and AM6% enriched with the diatom A. coffeaeformis at levels of 20, 40 and 60 g/kg of diet respectively. At the trial's conclusion, total protein, albumin, triglyceride and creatinine), SHs (follicle-stimulating hormone, luteinizing hormone, free testosterone, total testosterone, progesterone and prolactin) and seeds production efficiency of Nile tilapia improved significantly (p < 0.05) in alignment with the increment of A. coffeaeformis supplementation. The findings propose that including A. coffeaeformis at levels ranging from 4% to 6% could be effectively employed as a feed additive during the Nile tilapia broodstock's spawning season.