Preliminary evaluation of the nutritive value of the variegated grasshopper (Zonocerus variegatus L.) for African catfish Clarias gariepinus (Burchell. 1822) fingerlings

By W. Alegbeleye, S. O. Obasa, O. O. Olude, Kehinde Otubu, W. Jimoh. 2012

152 citations recorded by the source corpus.

A preliminary feeding trial was conducted to evaluate the nutritive value of adult variegated grasshopper (Zonocerus variegatus) meal (VGM) as a replacement for fish meal in the diets of Clarias gariepinus fingerlings. Proximate analysis result showed that VGM had 61.50% crude protein, 6.87% crude lipid, 27.33 NFE and 9.35% chitin. Five isonitrogenous (30%) and isoenergetic (18.42 MJ kg−1) diets were formulated in which VGM progressively replaced fishmeal at five inclusion levels (0%, 25%, 50%, 75% and 100%). The best performance in terms of % weight gain was observed in the group of fish fed ED1 (25% inclusion level) and was not significantly different (P>0.05) from the groups fed the control diet. Weight gain and specific growth rate were significantly lower (P 0.05) among the different groups. The results indicate that apparent protein and lipid digestibility were high at all levels, although there were decreases with an increase in the inclusion levels. Carcass lipid decreased with an increase in the inclusion level of VGM. The VGM can replace fish meal up to 25% in the diets of C. gariepinus fingerlings without any adverse effect on growth and nutrient utilization.

Subfields: Aquatic Science, Insect Science, Plant Science

View Paper: https://www.semanticscholar.org/paper/352414afb83dac9a629cca679eb34a2d059f5b0a

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In Aquatic Science

1. L. Gasco
2. E. Fountoulaki
3. E. Lock
4. R. Waagbø
5. H. Ji
6. M. Henry
7. G. Piccolo
8. Å. Krogdahl

In Insect Science

1. L. Gasco
2. G. Piccolo
3. V. Heuzé
4. Yanxian Li
5. R. Waagbø
6. E. Lock
7. M. Henry
8. P. Ankers

In Plant Science

1. Å. Krogdahl

Citations in the corpus

• State-of-the-art on use of insects as animal feed. (2014, background): “…+ 3.1 (4.2, 14.1) 6.6 + 2.5 (4.3, 10.0) 21.8 + 2.0 (19.5, 23.7) Values are mean + standard deviation; DM, dry matter; values in parentheses are minimum and maximum values Sources: Adeyemo et al., 2008; Alegbeleye et al., 2012; Anand et al., 2008; Hemsted, 1947; Ojewola et al., 2005; Walker, 1975.”
• Potential of insect-based diets for Atlantic salmon (Salmo salar) (2018, background): “The nutritional properties vary largely depending on the species and development stage of the insect (Alegbeleye et al., 2012; Barroso et al., 2014; Henry et al., 2015; Makkar et al., 2014; Sánchez-Muros et al., 2014; Tran et al., 2015; Van Huis, 2013).”
• Black soldier fly larvae meal can replace fish meal in diets of sea-water phase Atlantic salmon (Salmo salar) (2019, background): “Available documentation of the nutritional composition and value of different insect species considered as candidates for use in animal feeds has become substantial (Alegbeleye et al., 2012; Barroso et al., 2014; Henry et al., 2015; Makkar et al., 2014).”
• Recent advances in role of insects as alternative protein source in poultry nutrition (2018, unknown): “The nutrient composition of grasshopper meal (GHM) was assessed by many scientists (Ojewola et al. 2003; Ojewola and Udom 2005; Adeyemo et al. 2008; Alegbeleye et al. 2012).”
• Defatted black soldier fly (Hermetia illucens) larvae meal in diets for juvenile Jian carp (Cyprinus carpio var. Jian): Growth performance, antioxidant enzyme activities, digestive enzyme activities, intestine and hepatopancreas histological structure (2017, background): “Chitin and its derivatives were reported to decreased dietary nutrients absorption in intestine (Li et al., 2016a; Alegbeleye et al., 2012 ).”
• Review on the use of insects in the diet of farmed fish: Past and future (2015, methodology): “The development of commercial aquatic feeds has traditionally been based 118 on FM as the primary protein source, due to its high protein content and well balanced EAA profile (Nguyen et 119 al., 2009; NRC, 2011; Oliva-Teles, 2012) with high levels of digestible EAA, such as lysine (Lys), methionine”
• Efficacy of insect larval meal to replace fish meal in juvenile barramundi, Lates calcarifer reared in freshwater (2017, result): “Our results are in consistence with those of previous studies, suggesting an optimum fish meal replacement level of 20–50% using insect meal (Wing-Keong et al. 2001; StHilaire et al. 2007b; Alegbeleye et al. 2002; Cummins et al. 2017) in different aquaculture species.”