Formula of non-soybean meal type egg duck feed with extensive use of oil bran

Formula Factory: standard Formula: refs Formula name: 544-18 Nutrition Standard: laying Duck laying period (China) Formula date: 2007-12-26 Raw material number Raw material Price content% dosage Upper limit% Lower limit Shadow Price Upper limit Shadow Price 1430 rice bran 166035175350-1.5295 1400A corn 190017.9989.9510000 1425 flour 15901680160-1.7755 1600stone powder 1107.3236.610000 1516 rapeseed meal 213073570-1.0608 1576DDGS160063060-2.3603 1536 rice protein powder 40504.4222.1500 1511 cottonseed meal 24503.8419.2700 1610 calcium hydrogen phosphate 27801.075.3510000 9152 laying duck (0.16%) 4855.40.8410056.9020 1615 salt 0.281.41008.90180 1800 Lysine 155000.190.9510000 1709 choline 54000.050.2510051.4560 1803 Methionine 420000.040.210000 Formula cost: 1824.42 ratio and: 100% nutrient name nutritional content% standard lower limit shadow price upper limit shadow price crude protein% 17172027.220 calcium% 3.23.23.310.260 total phosphorus% 0.980.5000 available phosphorus % 0.330.330172.70 salt% 0.520.38000 lysine% 0.80.81.4145.420 methionine% 0.360.360.5375.590 egg + cystine% 0.66500.7500 poultry metabolic energy KC2390239027500.570-- duck feed I don't understand But seeing that some pig farmers use a lot of rice bran is said to be good-calcium is low, calcium hydrogen phosphate is a little more, why not phytase? How nice it is to have such a mature technology to reduce costs! It can also improve the benefit of environmental protection-- the upstairs is right, calcium is deliberately limited to low, because it is worried that the magnesium content of the stone powder used is a little higher, and there is a phenomenon of softening stool when the calcium is high. Now we have a new stone powder supplier and are preparing to increase calcium. The main reason for the uselessness of phytase is to consider the activity of the enzyme when making materials at high temperature-the landlord dived for many days and finally came to the surface. Is this a low grade of yours? The cost is too high, phosphorus and calcium can be added less. I don't know what the laying rate of this material is?-- Oh, this is mid-range. There are also one high and one low-- learning, learning, not bad.-- how much food intake? What is the laying rate?-is there wheat enzyme in 0.16% laying ducks? What are the main nutritional parameters of rice protein powder? Lack of animal protein-the quality of stone powder is not very good, why not order shell powder!