Recommended addition ratio of black soldier fly larvae defatting powder in laying hen feed:
For example:
Adding 10% increases egg production by 20.3% and feed conversion ratio by 15.8% compared to the fishmeal group.
Adding 15% requires combination with myrtle fruit powder, cassava leaf powder, etc., which can significantly reduce fat accumulation in laying hens and increase egg production. Optimized formulation suggestions: If replacing fishmeal or soybean meal, it is recommended to increase the addition amount to 20%~25% by supplementing with essential amino acids such as lysine and methionine.
Application effects:
Improved production performance; egg production rate increased by 10%~20%; feed conversion ratio decreased by 0.44 kg/kg.
Laying hens begin laying 28 days earlier, with improved egg weight and shell quality.
Recommended addition ratio of black soldier fly larvae defatted meal in broiler feed:
Basic addition ratio:
It is recommended to keep the addition below 10% throughout the entire feeding period, which can significantly improve the final weight, average daily feed intake, and daily weight gain of broilers.
If it is necessary to replace soybean meal, essential amino acids such as lysine and methionine need to be supplemented, and the addition level can be increased to 20%-25% (added in stages).
Stage addition plan:
1-21 days old: Addition level not exceeding 21% (replacing 75% of soybean meal).
22-34 days old: Addition level 11.2%-20% (replacing 50%-100% of soybean meal).
Analysis of the effect of addition:
Growth performance: Adding 10% defatted fly larvae meal can improve growth performance, but exceeding 15% may inhibit intestinal villus development, requiring optimization through amino acid balance.
Even after amino acid supplementation, a 25% addition level can still reduce the feed conversion ratio.
Impact on Meat Quality: When added at a level ≤15%, there are no significant negative impacts on carcass performance, pH value, or meat color.
It may reduce the content of polyunsaturated fatty acids in breast muscle, but medium-chain fatty acids (such as lauric acid) can enhance antioxidant capacity.
Immune Enhancement: Antimicrobial peptides and chitin in black soldier fly larvae powder can increase serum glutathione peroxidase activity, enhancing disease resistance.
Recommended Ratio of Black Soldier Fly Defatted Insect Powder in Breeder Feed:
Basic Addition Range:
According to research, the recommended addition level of black soldier fly larvae powder in breeder feed is 5%-15% (dry matter basis), which needs to be adjusted according to the growth stage:
Chick Stage: 5%-10%, to avoid nutritional imbalance
Adult Breeder Chickens: 10%-15%, which can replace part of soybean meal (e.g., 50%-75%).
Key to Amino Acid Supplementation: When the addition level exceeds 15%, it is necessary to supplement essential amino acids such as lysine, methionine, and threonine to balance nutrition and maintain growth performance.
Analysis of Effects of Adding Insect Meal:
Positive Impacts on Growth Performance: Adding 10%-15% can improve average daily weight gain and feed conversion ratio, but excessive amounts (e.g., 25%) may inhibit growth.
Immune Enhancement: Antimicrobial peptides and chitin in insect meal can increase serum antioxidant enzyme activity, enhancing disease resistance.
Environmental Benefits: Utilizing insect protein reduces dependence on soybean meal and lowers carbon emissions from animal husbandry.
Potential Issues
Fatty Acid Composition: Excessive addition may reduce the proportion of polyunsaturated fatty acids in chicken meat, affecting meat flavor.
Operational Recommendations
Gradual Transition: Start with 5% for the first addition, gradually increasing to the target proportion over 3-5 days to reduce stress.
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