Optimizing Meat Chicken Feed with Shrimp, Crab, and Fish Meal: A Solution for Abdominal Fat Reduction and Enhanced Meat Quality
Cost Challenges and the "Clean Meat" Trend
With the continuous volatility of industrial feed prices, searching for alternative protein sources from local by-products has become essential for the poultry industry. Fisheries by-products, such as fish meal, shrimp head meal, and crab shell meal, offer high nutritional value and contain precious bioactive compounds that significantly improve the quality of meat chickens.
Empirical Research at Halu Oleo University
A team of leading scientists, including Muhammad Amrullah Pagala and colleagues from the Faculty of Animal Science, Halu Oleo University (Indonesia), conducted an in-depth study to evaluate the impact of blending these three by-products on the development of meat chickens.
The study was carried out on 96 one-day-old meat chickens, using a completely randomized design with four experimental groups:
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P0 (Control): 100% standard commercial feed.
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P1: Blend of 11% fish meal + 6% shrimp head meal.
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P2: Blend of 11% fish meal + 6% crab shell meal.
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P3: Blend of 11% fish meal + 3% shrimp head meal + 3% crab shell meal.
Superior Nutritional Content
Analytical data shows that these by-products are impressive sources of Crude Protein:
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Shrimp Head and Shell Meal: Reaches 32.60% crude protein, providing a solid foundation for skeletal and muscle development.
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Crab Shell Meal: Ranges from 15.72% to 33.55% crude protein, rich in calcium and easily absorbable organic minerals.
Using these protein sources reduces dependence on expensive imported proteins, thereby optimizing production costs for farmers.
Carcass Index and Commercial Meat Quality
Experimental results showed that the carcass percentage of the groups using by-products ranged from 64.30% to 68.47%. Notably, group P3 (the blend of all three meals) showed growth rates and meat ratios equivalent to the control group using 100% industrial feed. This confirms that shrimp and crab shell meals do not reduce productivity but instead help produce firmer chicken meat.
Breakthrough in Abdominal Fat Reduction: The Role of Chitin
This is the most valuable finding of the study. The abdominal fat ratio in the P3 group was only 0.24%, a reduction of over 65% compared to the control group (0.70%).
The Scientific Mechanism: The Chitin component in shrimp and crab shells breaks down into Glucosamine in the digestive system. This compound can directly interfere with fat absorption and inhibit fatty acid synthesis in the chicken's body. The result is a "super lean" meat chicken product, perfectly meeting the "clean chicken" standards of premium markets.
Biosafety and Animal Health
A major advantage is that the liver index of the chickens throughout the trial remained stable (1.88% - 2.43%). Clinical observations showed the chickens' livers had a natural dark red color, with no signs of swelling or toxicity. This proves that fisheries by-product meals are completely safe for the internal health of the animals.
Conclusion and Recommendations
This study opens a new chapter for sustainable meat chicken farming. By blending 11% fish meal with 3% shrimp head meal and 3% crab shell meal, farmers can not only save costs but also create a high-quality chicken product with low abdominal fat, easily capturing the clean food market.
