Insects as Livestock Feed

Questions and Answers

What is the significant benefit of using black soldier fly larvae in animal feed?

They can convert food waste and manure into high-quality protein. (correct)

They have a higher growth rate than fish meal.

They are higher in calories compared to traditional feeds.

They require less water for growth than other feed sources.

What is the protein content of defatted black soldier fly meal based on dry matter reported by Cullere et al. in 2016?

51.8% (correct)

47.2%

36.2%

14.8%

Which stage of the black soldier fly larvae is processed for creating insect meal?

Eggs

Prepupal (correct)

Pupa

Larvae

At what temperature are the black soldier fly larvae killed during processing?

-20 °C Signup and view all the answers

What is the lipid content of full-fat black soldier fly meal as reported by Barroso et al. in 2014?

18.0% Signup and view all the answers

How long are the prepupal black soldier fly larvae oven dried?

24-34 hours Signup and view all the answers

Which region is the natural habitat of the black soldier fly?

Central and Latin America Signup and view all the answers

What happens to the press cake after the black soldier fly larvae are defatted?

It is milled to obtain a homogenous meal. Signup and view all the answers

What was the outcome of replacing fishmeal with insect meal in the experiment?

Substantial replacement of fishmeal was possible without compromising growth, feed conversion, and product quality. Signup and view all the answers

What potential issue could arise from using insect meal as a fish feed over an entire production cycle?

Decreased protein utilization efficiency and production efficiency. Signup and view all the answers

Why is the demand for high-quality feed ingredients growing in aquaculture?

Aquaculture is increasingly contributing to global food fish supply. Signup and view all the answers

What is a potential benefit of using fishmeal sourced from trimmings or sustainability schemes?

It contains relatively more Phosphorous than other fishmeal types. Signup and view all the answers

Which of the following is NOT a directive or standard mentioned concerning aquaculture?

Global Innovation Coalition Signup and view all the answers

What is a major characteristic of fishmeal required for organic aquaculture?

It must be organically or sustainably certified. Signup and view all the answers

What impact does the limited availability of fishmeal have on aquaculture?

It influences the prices of feed ingredients and availability. Signup and view all the answers

What effect does the type of protein source have on organoleptic properties?

The type of protein source can affect the organoleptic properties of the fish produced. Signup and view all the answers

What is the digestible energy content of the feed used for H. illucens larvae?

17.0 MJ/kg DM Signup and view all the answers

What is the DP:DE ratio found in the study?

23.5 g/MJ Signup and view all the answers

How long were the larvae fed before reaching the second larval stage?

10 days Signup and view all the answers

What type of feed was used for the larvae in this study?

Demeter layer hen crumble Signup and view all the answers

Which factor might influence the growth performance of H. illucens larvae?

Digestible protein levels in the feed Signup and view all the answers

What is the likely source of crude protein mentioned in the content?

Chitin Signup and view all the answers

What happens to larvae after 10 days of feeding?

They reach the second larval stage. Signup and view all the answers

What aspect of insect meal production is notably important for diets in aquaculture?

Digestibility and nutrient balance Signup and view all the answers

Study Notes

Insect Feed in Livestock Production

Interest in insects, particularly larvae, as feed for livestock is rapidly increasing.
Black soldier fly (Hermetia illucens) is a promising insect species for feed conversion from food waste and manure into high-quality protein.
Native to Central and Latin America, H. illucens is now established in most tropical regions worldwide.

Nutritional Profile of H. illucens

Protein and lipid content of defatted H. illucens meal (HIM) ranges significantly:
- 47.2% protein and 11.8% lipid (Kroeckel et al., 2012)
- 51.8% protein and 14.8% lipid (Cullere et al., 2016)
Full-fat HIM contains 36.2% protein and 18.0% lipid (Barroso et al., 2014).

Diets and Experimental Results

Experimental diets included one commercial and one experimental formulation.
Replacement of fishmeal with insect meal showed no adverse effects on growth, feed conversion, or product quality.
Reduced protein utilization efficiency in fish fed with HIM may impact overall production over a full production cycle.

Aquaculture and Protein Sources

Aquaculture contributes significantly to global fish supply, with about 50% of food fish being produced through aquaculture as of 2006.
Global finfish production rose by 90% from 2004 to 2014, driving demand for high-quality, protein-rich feed ingredients.
Organic aquaculture requires that all feed ingredients be organically or sustainably certified, limiting available resources and affecting prices.

Technical Findings

H. illucens larvae were fed chicken feed until the second larval stage, demonstrating a controlled feeding process.
Digestible Energy (DE) values and the digestible protein to digestible energy (DP:DE) ratio aid in evaluating feed efficiency, indicating potential variations in performance based on dietary composition.

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Description

This quiz explores the growing interest in using insects as feed for various livestock species. It delves into the components of insect feed, including pasta, spent brewer grains, and fruit and vegetable leftovers. Test your knowledge on this innovative approach to sustainable livestock nutrition.