Impact of Mono- and Polyculture Systems on Growth Performance, Feed Utilization, and Economic Efficiency of Oreochromis niloticus, Mugil cephalus, and Mugil capito

Abstract

A field study was conducted to assess the effect of mono-and polyculture systems in net Hapas of monosex Nile tilapia (Oreochromis niloticus), striped mullet (Mugil cephalus) and /or thin-lipped mullet (M. capito) at different stocking ratios on growth performance, feed efficiency, chemical composition of the whole body, and economic efficiency parameters of experimental fish for 107 days rearing period. Five experimental treatments were represented as 100% Nile tilapia (T 1 , monoculture); 75% Nile tilapia: 25% striped mullet (T 2 , polyculture); 75% Nile tilapia: 13% striped mullet: 12% thin-lipped mullet (T 3 , polyculture); 50% Nile tilapia: 50% striped mullet (T 4 , polyculture) and 100% striped mullet (T 5 , monoculture). Fish of T 2 showed the highest significant of all growth performance, feed utilization, and economic efficiency parameters followed by the same fish species reared in polyculture system (T 4) at stocking ratio (50%: 50%) compared to other experimental fish-culture systems. Generally, it could be recommended that rearing monosex O. niloticus in polyculture system with M. cephalus at stocking ratio 75%: 25%, respectively (T 2) is more effective than other aquaculture systems under the experimental conditions of the present study.

Growth performance, digestive enzyme activity, non‐specific immune response and stress enzyme status in early stages of grey mullet reared in a biofloc system

“…In recent years, there has been an increasing economic interest in the cultivation of grey mullet in India due to its high price, excellent quality of meat and versatility in cultivation, especially in the coastal and inland saline water regions (Talukdar et al, 2020). There are previous reports on diet manipulation (Akbary et al, 2016(Akbary et al, , 2018Gisbert et al, 2016;Talukdar et al, 2020), and the rearing of grey mullets in integrated or polyculture (Borges et al, 2020;El-Hawarry, 2018;Helal et al, 2020;Hoang et al, 2020;Mehrim et al, 2018;Vinatea et al, 2018) as well as inland saline waters (Biswas et al, 2012;Garg et al, 2006;Jana et al, 2004). Considering the expected surge in demand for fish, it is high time to adopt intensified culture practices to improve the yield.…”

The Feasibility of Monoculture and Polyculture of Striped Catfish and Nile Tilapia in Different Proportions and Their Effects on Growth Performance, Productivity, and Financial Revenue

“…In each aquaculture system, the growth rate which determines the total production of the aquaculture system is affected by several factors including, intraspecific and interspecific interaction. Furthermore, fish growth is affected by many factors such as seasonality, availability of food and oxygen, stocking density, age and aquaculture system [6,29]. Previous studies regarding the polyculture of striped catfish and Nile tilapia showed that both species may be co-farmed without affecting growth performance or survival [9,30].…”

“…Nile tilapia is the main aquaculture indigenous species in Africa, it shows acceptable growth, feed efficiency and high marketability [4]. However, during the last few years, the production of Nile tilapia in Africa and Egypt, in particular, being one of the main tilapia producers, has been facing certain challenges, especially with the summer mortality phenomenon and freshwater shortage [5,6]. In addition, climate change and freshwater shortage have been a challenge these regions faced, which forced scientists to look for more sustainable solutions to maximize the aquaculture production and the efficient use of water unit [7].…”

Applying Biofloc Technology in the Culture of Mugil cephalus in Subtropical Conditions: Effects on Water Quality and Growth Parameters

“…Various studies have been carried out focused on the trophic ecology, migratory movements, taxonomy, genetics, and biology of the species [1,3,6,[8][9][10][13][14][15]. Under culture conditions, however, the studies present results for a wide variety of rearing systems in different conditions, structures, and intensities (extensive, semi-intensive, closed and open systems, monoculture, polyculture, using ponds or tanks) [16][17][18][19][20][21][22][23][24][25].…”