Ảnh hưởng của tảo và mật độ ương lên tỷ lệ sống và tăng trưởng của ấu trùng cầu gai đen Diadema setosum (Leske, 1778)

Nhân, Hứa Thái; Hải, Trần Ngọc; Đức, Phạm Minh; Như, Trương Quỳnh

doi:10.22144/ctu.jvn.2019.078

Cited by 1 publication

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Larval rearing trials were conducted under the same conditions for larvae of all treatments for 25 days after hatching. Experimental handling, set up and feeding management for larvae were done according to our previous study (Nhan, Nhu, Duc, & Hai, 2019). Larvae were stocked at a density of 2 larvae/mL in the 7 L bucket, triplicate for each dietary treatment.…”

Section: Methodsmentioning

confidence: 99%

“…Larvae were fed with a mixture of pelagic algae of Nannochloropsis oculata, Chaetoceros gracillis and Thalassiosira sp. (ratio of 1:1:1) at the density of 4.500-8.000 cells/mL (Nhan, Nhu, Duc, et al, 2019).…”

Section: Larval Rearingmentioning

confidence: 99%

“…Experimental handling, set up and feeding management for larvae were done according to our previous study (Nhan, Nhu, Duc, & Hai, 2019). Larvae were stocked at a density of 2 larvae/mL in the 7 L bucket, triplicate for each dietary treatment.…”

Section: Larval Rearingmentioning

confidence: 99%

See 2 more Smart Citations

Effects of dietary arachidonic acid on final maturation, spawning and composition of gonad of black sea urchin Diadema setosum (Leske, 1778)

et al. 2020

View full text Add to dashboard Cite

This study investigated the effect of dietary arachidonic acid (ARA, 20:4n‐6) on final maturation, spawning performance and composition of the gonad of black sea urchin (Diadema setosum). Four different dietary ARA levels of 0.3 g/kg (Control diet), 1.4 g/kg (ARA 1.4), 2.5 g/kg (ARA 2.5) and 3.7 g/kg (ARA 3.7) were prepared and tested in this feeding trial for 90 days. The result showed that growth in terms of weight was not relatively affected by dietary ARA. Gonadosomatic Index (GSI) of animals were gradually increased in all the diets throughout the trial. The highest GSI level (25.7 ± 3.16%) was observed in animals fed with the diet ARA 1.4. ARA content in the gonad proportionally increased with dietary ARA levels. The highest larval survival rate (85.5 ± 5.67%) was found in diet ARA 2.5. The results of this study indicate that ARA plays an important role in the reproduction functions of black sea urchin and supplementing an appropriate level of ARA in the broodstock diet could induce the final maturation and improve reproduction of black sea urchin, but a higher level of ARA (3.7 g/kg) seems to have a negative effect on both growth rate and GSI.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Larval Rearingmentioning

confidence: 99%