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A method of raising fly maggots with leftovers after cultivating housefly larvae with wheat bran

A technology of housefly larvae and leftovers, which is applied in the fields of application, animal feed, animal feed, etc., can solve the problems of no longer raising housefly larvae, etc., and achieve the effects of improving resource utilization efficiency, reducing production costs, and reducing labor costs

Active Publication Date: 2016-02-03
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem in the prior art that the leftovers after raising housefly larvae with wheat bran can no longer raise housefly larvae, and provide a method for feeding flies with leftovers after raising housefly larvae with wheat bran maggot way

Method used

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  • A method of raising fly maggots with leftovers after cultivating housefly larvae with wheat bran
  • A method of raising fly maggots with leftovers after cultivating housefly larvae with wheat bran
  • A method of raising fly maggots with leftovers after cultivating housefly larvae with wheat bran

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 Effect of different proportions of NaOH on alkaline hydrolysis of leftovers

[0019] Dispose of the scraps as follows: Separate the scraps, alkali and water according to 100:2:300, 100:2.5:300, 100:3:300, 100:3.5:300, 100:4:300, 100:4.5: The weight ratio of 300, 100: 5: 300, 100: 5.5: 300 is subjected to alkaline hydrolysis treatment, and fermented at 30°C for 25 days. When the pH drops to 7, it is used to prepare feed for housefly larvae.

[0020] Feed preparation and feeding methods are as follows: Weigh 1.5kg of fresh wheat bran and 6.5kg of alkaline hydrolysis and fermentation scraps, mix them evenly, put them into a 68cm×45cm×18cm plastic box, and then receive 55,000 housefly eggs in each box. The larvae were reared at a temperature of 26°C and a humidity of 60%. After 4 days, the larvae were separated from the culture material, and the weight of the separated larvae and the weight of the single larvae were weighed. Repeat 6 times. 100% fresh wheat bran was ...

Embodiment 2

[0024] Example 2: Influence of water on the effect of alkaline hydrolysis of scraps

[0025] Dispose of leftovers as follows: Press 100:4:150, 100:4:200, 100:4:250, 100:4:300, 100:4:350, 100:4: The weight ratio of 400 is subjected to alkaline hydrolysis, and it is fermented at 30°C for 25 days. When the pH drops to 7, it is used to prepare housefly larva feed.

[0026] Feed preparation and feeding methods are as follows: Weigh 1.5kg of fresh wheat bran and 6.5kg of alkaline hydrolysis and fermentation scraps, mix them evenly, put them into a 68cm×45cm×18cm plastic box, and then receive 55,000 housefly eggs in each box. The larvae were reared at a temperature of 26°C and a humidity of 60%. After 4 days, the larvae were separated from the culture material, and the weight of the separated larvae and the weight of the single larvae were weighed. Repeat 6 times. 100% fresh wheat bran was used as a control (2.5kg fresh wheat bran per box, 5.5kg water). The results are shown in Table 2...

Embodiment 3

[0030] Example 3: The influence of temperature on the fermentation of alkaline hydrolysis leftovers

[0031] The leftovers are treated as follows: the leftovers, alkali and water are subjected to alkaline hydrolysis treatment at a weight ratio of 100:4:300, and then fermented at 13, 18, 23, 28, 33, 38, and 43 ℃, and wait until the pH drops. At 7 o'clock, prepare housefly larva feed.

[0032] Feed preparation and feeding methods are as follows: Weigh 1.5kg of fresh wheat bran and 6.5kg of alkaline hydrolysis and fermentation scraps, mix them evenly, put them into a 68cm×45cm×18cm plastic box, and then receive 55,000 housefly eggs in each box. The larvae were reared at a temperature of 26°C and a humidity of 60%. After 4 days, the larvae were separated from the culture material. The weight of the larvae, the weight of a single larva and the survival rate of the larvae were measured. The results are shown in Table 3.

[0033] table 3.

[0034]

[0035] From the results in Table 3 above...

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Abstract

The invention belongs to the field of artificial breeding of insects, and in particular relates to a method for raising fly maggots by using leftovers after breeding housefly larvae with wheat bran. The invention uses wheat bran to ferment the leftovers of housefly larvae after alkaline hydrolysis and fermentation, and mixes it with fresh wheat bran in a certain proportion to make a culture material for housefly larvae, which is used for raising housefly larvae. The invention fully realizes the reuse of leftovers, greatly reduces the amount of wheat bran used in the fly maggot production process, and reduces the cost of raw materials by 2 to 3 times. The invention provides strong technical support for using wheat bran to raise fly maggots in a low-cost and clean manner.

Description

technical field [0001] The invention belongs to the field of artificial breeding of insects, and in particular relates to a method for raising fly maggots by using leftovers after breeding housefly larvae with wheat bran. Background technique [0002] Housefly larvae can be reared in culture materials such as animal manure, rice bran, milk powder, distiller's grains and wheat bran. Wheat bran is characterized by its large yield, convenient handling and no parasitic mites. Therefore, since Richardson (1932) reported the artificial breeding of houseflies, it has become the main material for raising housefly larvae. However, the protein utilization rate of housefly larvae to wheat bran is very low, generally less than 50%. Therefore, the crude protein content of leftovers after feeding fly maggots can still reach 7-8% (the crude protein content of wheat bran without feeding housefly larvae Protein is about 13%), but these leftovers cannot continue to be used to raise housefly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/90A23K10/37A01K67/033
CPCY02P60/87
Inventor 李广宏李锐敏
Owner SUN YAT SEN UNIV
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