Assessing Nursery-Finishing Pig Manures on Growth of Black Soldier Fly Larvae

Abstract

Livestock manure is an important component of agricultural organic waste, and in recent years, with the development of research on the bioconversion of manure, BSFs have been proven to be useful in the treatment of a variety of livestock wastes. In-depth research on the composition of manure and its effect on the development of BSFL is, however, very scarce. The purpose of this study was to identify the parameters that influenced the growth of BSFL that was fed fattening pig manure. The pH, moisture, and nutrients of the fattening manures (namely, nursery, growing, and finishing pig manures) were measured. To examine the influence of manure types on larval growth, 100 larvae were inoculated in 100 g of each type of manure in triplicate. According to the findings, larvae fed finishing pig manure had the lowest dry weight (30.2 ± 6.1 mg) compared to those fed growing (58.2 ± 7.3 mg) or nursery (65.5 ± 6.2 mg) pig manure. The correlation coefficients (r) between the nutrients in the manure and the weight of the larvae were calculated. Hemicellulose had the greatest |r| value (0.9569). Further research revealed that larvae raised on hemicellulase-pretreated finishing pig manure frequently weighed 21–30% (days 2–8) more than larvae raised on control manure. In conclusion, hemicellulose was a significant component that might hinder larval growth. The results of this study could be used to improve the system before it is put into use.

Utilizing Black Soldier Fly Larvae to Improve Bioconversion and Reduce Pollution: A Sustainable Method for Efficient Treatment of Mixed Wastes of Wet Distiller Grains and Livestock Manure

“…Similarly, adding soybean curd residue into cow manure, the bioconversion rate increased approximately two times, from 6.40% to 11.60% [38]. With BSFL biotreated mixed food waste, the bioconversion rate was the highest, 14.00% in the mixed wastes of coconut endosperm and soybean curd residue and 18.54% in the soybean curd residue and kitchen waste mixture [39,40]. Compared with the single-waste treatment, mixed wastes could provide more nutrition, which is conducive to the growth of BSFLs.…”

Evaluation of the decomposition ability and characteristics of pig manure treated with different larval instar stages of black soldier fly (Hermetia illucens L.)

“…Thus, new or existing waste management strategies should be developed or implemented in accordance to the principles proposed for livestock recycling systems (Van Zanten et al 2015). Under this scope, insects can play a key role in the sustainable conversion of organic wastes, such as manure and food waste (Pastor et al 2015; Hao et al 2023). Black soldier flies convert organic waste into waste with specific physical, chemical, and biological characteristics (Shumo et al 2019).…”

Application of Machine Learning Techniques to Discern Optimal Rearing Conditions for Improved Black Soldier Fly Farming

“…This underscores the need to investigate other approaches that can contribute to improving the rearing process of BSFL to improve its production as a source of feed for animals. Moreover, farming BSFL addresses other challenges, such as fertilizer production [ 10 ] and waste management [ 15 , 16 ].…”