Co-culture of red seaweed Gracilaria tenuistipitata and black tiger shrimp Penaeus monodon in an improved extensive pond at various stocking densities with partially reduced feed rations: a pilot-scale study

• Published in: Journal of applied phycology 2022-04, Vol.34 (2), p.1109-1121
• Main Authors: Anh, Nguyen Thi Ngoc, Vinh, Nguyen Hoang, Doan, Dang Trung, Lan, Lam My, Kurihara, Akira, Hai, Tran Ngoc
• Format: Article
• Language: English
• Subjects: Algae; Ash content; Biomedical and Life Sciences; Conversion ratio; Density; Ecology; Feed conversion; Feeds; Food conversion; Freshwater & Marine Ecology; Gracilaria tenuistipitata; Growth rate; Life Sciences; Lipids; Meat; Moisture effects; Monoculture; Monoculture (aquaculture); Penaeus monodon; Plant Physiology; Plant Sciences; Ponds; Rations; Restocking; Seaweeds; Shrimp culture; Stocking; Stocking density; Survival
• ISSN: 0921-8971; 1573-5176
• DOI: 10.1007/s10811-021-02661-3

  A pilot-scale experiment was conducted within an improved extensive pond to evaluate the efficiency of co-culturing black tiger shrimp ( Penaeus monodon ) and red seaweed ( Gracilaria tenuistipitata ) at different densities with partially reduced feed rations. Six treatments were established at random in triplicate with three stocking densities (2, 4, and 6 ind. m −2 ), and each density monocultured with either a 100% feed ration or co-cultured with red seaweed and a 50% feed ration. The culture system consisted of eighteen net enclosures (16 m 2 each) installed in an improved extensive pond. After 4 months of culture, the growth rates of the shrimp decreased with increasing stocking density and shrimp yields at densities of 4 and 6 ind. m −2 were similar to each other ( p  > 0.05) and significantly higher ( p