{"id":26947,"date":"2026-03-12T10:17:36","date_gmt":"2026-03-12T03:17:36","guid":{"rendered":"https:\/\/www.poultryindonesia.com\/amino-acid-balance-essential-for-low-protein-diets-in-layers\/"},"modified":"2026-03-12T10:19:07","modified_gmt":"2026-03-12T03:19:07","slug":"amino-acid-balance-essential-for-low-protein-diets-in-layers","status":"publish","type":"post","link":"https:\/\/www.poultryindonesia.com\/en\/amino-acid-balance-essential-for-low-protein-diets-in-layers\/","title":{"rendered":"Amino Acid Balance: Essential for Low-Protein Diets in Layers"},"content":{"rendered":"
Modern ration formulation is no longer focused solely on crude protein percentages, but rather on the adequacy and ratio of amino acids.<\/strong><\/h6>\n
Amid the challenges faced by the poultry industry\u2014ranging from fluctuating raw material prices and disease risks to increasing demands for efficiency\u2014nutritional innovation has become increasingly crucial. One approach that has begun to gain attention is low-protein feed formulation<\/strong>, aimed at improving efficiency while reducing both costs and environmental impact.<\/h6>\n
Several studies have found that reducing crude protein (CP) levels from 17% to around 13\u201315%<\/strong> can maintain production performance and feed efficiency while reducing nitrogen excretion by approximately 10\u201315%<\/strong>. However, lowering crude protein also has the potential to reduce egg weight and egg quality, making the balance of amino acids (AA)<\/strong> a key factor in maintaining productivity and digestive health in laying hens.<\/h6>\n
Modern ration formulation is therefore no longer oriented merely toward crude protein percentages, but toward the adequacy and balance of amino acids. The Ideal Protein Concept<\/span><\/span><\/strong> states that when all essential amino acids are provided in the correct proportions, crude protein levels can be reduced without compromising performance. This strategy also contributes to lower nitrogen excretion, making poultry production more environmentally friendly.<\/h6>\n
According to Bregendahl<\/span><\/span> et al. (2008)<\/strong>, the ideal amino acid requirement pattern for laying hens (SIDAA) is:
Lys : Met : Trp : Thr : Met + Cys : Arg : Ile : Val = 100 : 50 : 21 : 70 : 91 : 104 : 80 : 88.<\/strong><\/h6>\n
Even so, the optimal threshold for reducing crude protein and the best strategy for balancing amino acids in low-protein diets remain unclear.<\/h6>\n
Therefore, the authors considered it necessary to evaluate low-protein diets supplemented with several essential amino acids<\/strong> in terms of their effects on production performance, egg quality, and intestinal health, in order to support the more precise application of low-protein nutrition strategies in laying hens.<\/h6>\n
\"\"A total of 384 Hy-Line laying hens<\/span><\/span> aged 33 weeks<\/strong> were divided into four treatment groups with eight replicates<\/strong>. Each replicate consisted of 12 birds<\/strong> and the experiment was conducted for 20 weeks<\/strong>. The treatment groups were as follows:<\/h6>\n