Home Research & Publications Research Report
LAST UPDATE : 2016-01-01
|Subject||Development of alternative feed ingredient for swine using insect....|
Ⅰ. Title : Development of alternative feed ingredient for swine using insect resources
Ⅱ. Research Achievement and Goal
Ⅲ. Purpose and Needs
We want to establish the stable insect production system for animal feed, to provide
the scientific background and application of insect feed for each life stage of swine
production, and to develop high quality feed with insect that is more than 3 efficient
than conventional quality feed.
¡ Generally, insects contain high quality nutrient especially protein, fat, minerals,
and vitamins. In addition, amino acid composition of insects is better than crops
and beans with rich unsaturated fatty acids.
¡ Insects have been focused as a feed ingredient as a surrogate for expensive fish
cake and soybean cake because of overfishing and food safety issues that was
raised by animal diseases such as foot-and-mouse disease.
¡ Insect industry will be expanded when insects will replace only 5 % of fish cake
that has been served as a protein sources in animal feed which is produced 1.65
million tons for small swine.
¡ Insect can be used as a good protein source for animal feed because it is much
safer and cheaper than conventional protein sources such as fish cake and
soybean cake. Insects may be a safe highly quality feed ingredient with low price
when stable mass-production system is established.
Ⅳ. Research scope and contents
To establish mass-insect-rearing system for feed ingredient: selecting a superior
line by culture breeding, investigating the best protein source by manual feeding test
and the optimal temperature for high oviposition efficiency by testing six
temperatures (17.5, 20, 22.5, 25, 27.5, 30℃), and comparing rearing conditions for
egg protection by different air circulation systems.
Developing price-reducing technique for insect production: developing an automated
byproduct seperation system for mealworm rearing cage for removing feces, and
making an insect jelly as a water source to replacing other expensive water sources
such as vegetables and fruits. In additions, developing the standard rearing cage to
reduce the labor, analyzing the nutritional factors to verify insect drying methods,
and investigating insect rearing farmers and distributors.
Developing technical manuals for insect mass-rearing for feed ingredient:
developing technical manuals for a standard rearing system describing characteristics,
reproduction mechanisms, preserving and maintenance, functional analysis of
mealworms, investigating developing characteristics for mealworms when they are
fed on byproduct of alcohol beverages such as beer and makgeoli, and investigating
the economic analysis for mealworms as a feed ingredient and the efficiency of
feeds with insects.
Establishment of mealworm-rearing system for animal feeds: To investigate the
relationship between rearing temperature and disease occurrence in mealworm,
diverse temperature conditions such as 20, 25, 30 and 35℃ and low, middle and high
humidity conditions were considered in the rearing. Mealworm-pathogenci fungal
pathogens were isolated and identified using a ITS-specific primers, and to
effectively control the occurrence of the pathogens, commercially available fungicides
were used to examine their control efficacy.
Set-up of a mealworm supply system for animal feeds: To efficiently control the
possible mealworm-pathogenic fungal pathogens in the rearing conditions, two
anti-fungal fungicides, such as fluazinam and mancozeb were added to the wheat
bran as a feed for mealworms by spray method. Synchronization of the mealworm
stages was investigated by making the adults have oviposition for a given time of
periods, such as 1, 3, 5, 7, and 14 days for the supply of the same size of stages.
Egg and pupal stages of mealworms were kept at 4℃ for 2, 4, 6, 8, 10 and 12
weeks and their survival and development were examined for stability of the stages
at low temperature.