1. Feed formula based on corn, bean cake and fish meal
(1) Conventional feed formula in laying period
Formula 1: corn 60.00, bran 10.0, bean cake 10.0, Sophora japonica leaf powder 2.0, fish meal 10.0, shell powder 6.9, other additives10, salt 0./.
Main nutrients: metabolic energy 1 1.34, crude protein 16.5, crude fiber 2.4, calcium 3.20, phosphorus 0.7 1, lysine 0.9 1, methionine 0.32 and cystine 0.27.
In this formula, shell powder is used to supplement calcium deficiency in laying hen feed, and the energy and protein content are appropriate. In the period of low laying rate, the content of protein is high, so more calcium should be added in the way of high laying rate.
Formula 2: corn 5 1.7, sorghum 5.0, barley 9.0, bean cake 15.0, Sophora japonica leaf powder 5.0, fish meal 5.5, bone meal 2.0, oyster powder 6.5 and salt 0.3.
Main nutrients: metabolic energy 1 1.42, crude protein 17.0, crude fiber 3.0, calcium 3.42, phosphorus 0.56, lysine 0.98, methionine 0.3 1, cystine 0.27.
All the nutrients in this formula are suitable.
Formula 3: corn 5 1.4, sorghum 5.0, barley 12.0, bean cake 12.3, Sophora japonica leaf powder 5.0, fish powder 5.5, bone powder 2.5, oyster powder 6.0 and salt 0.3.
Main nutrients: metabolic energy 1 1.42, crude protein 16.0, crude fiber 3.0, calcium 3.27, phosphorus 0.56, lysine 0.85, methionine 0.3 1, cystine 0.25.
Various nutrients in this formula are more suitable for the nutritional needs of laying hens.
Formula 4: corn 5 1.7, sorghum 5.0, barley 15.0, bean cake 9.0, Sophora japonica leaf powder 5.0, fish meal 5.5, bone meal 2.5, oyster powder 6.0 and salt 0.3.
Main nutrients: metabolic energy 1 1.46, crude protein 15.0, crude fiber 2.4, calcium 3.26, phosphorus 0.56, lysine 0.77, methionine 0.30 and cystine 0.24.
All the nutrients in this formula are suitable.
Formula 5: corn 74.60, bean cake 10.56, alfalfa meal 4.00, fish meal 2.50, meat and bone meal 1.00, stone meal 5.44, calcium hydrogen phosphate 1.50 and salt 0.4. Main nutrients: metabolic energy 12. 18, crude protein 14.8, crude fiber 2.9, calcium 2.56, phosphorus 0.6 1, lysine 0.54, methionine 0.20 and cystine 0.22.
This formula is a high-energy and low-protein feed formula with a large amount of corn and less fish meal. The content of lysine, methionine and cystine in the formula is low, and calcium is also lacking, so it should be adjusted appropriately.
Formula 6: corn 55.0, corn umbilical cake, miscellaneous grains 10.5, bran 6.0, bean cake 17.0, fish meal 5.0, shell powder 3.0, stone powder 3.0, methionine 0. 1, and salt 0.4.
Main nutrients: metabolic energy 1 1.30, crude protein 17.0, crude fiber 2.9, calcium 2.34, phosphorus 0.48, lysine 0.88, methionine 0.37 and cystine 0.28.
The dosage of bean cake and fish meal in this formula is large, which belongs to high protein feed formula, and the proportion of amino acids is appropriate, but calcium and phosphorus are lacking, so it should be supplemented.
Formula 7: corn 49.62, sorghum 10.0, bran 7.5, bean cake 9.0, Sophora japonica leaf powder 7.0, fish meal 6.0, bone meal 2.0, stone powder 6.5, methionine 0.08, other additives 2.0 and salt 0.3.
Main nutrients: metabolic energy 1 1.5, crude protein 14. 1, crude fiber 3.2, calcium 3.23, phosphorus 0.89, lysine 0.73, methionine 0.35 and cystine 0. 17.
This formula is a low-energy and low-protein feed formula, and various nutritional proportions in the formula are appropriate.
Formula 8: corn 64.8, sorghum 1.0, bean cake 18.5, Sophora japonica leaf powder 0.5, fish powder 4.0, bone powder 1.5, stone powder 7.3, methionine 0. 1, other additives 2.0 and salt 0.3.
Main nutrients: metabolic energy 1 1.92, crude protein 15.3, crude fiber 2.4, calcium 3.20, phosphorus 0.60, lysine 0.8 1, methionine 0.38 and cystine 0.20.
This formula is high in energy, and protein and calcium should be appropriately increased during the peak laying period.