Sodium and chlorine are needed by the deer. In order to supplement these two substances, salt must be fed. The amount of daily salt recharge is 30 grams to 40 grams for adult male deer, 20 grams to 25 grams for adult deer, 15 grams to 20 grams for deer, and 10 grams to 15 grams for young deer. Deer in iodine-deficient areas often suffer from goiter and should be supplemented with iodized salt. Pay attention to the quality of salt for feeding and do not feed salt containing impurities or other contaminants. The moisture content of salt should not exceed 0.5% and the purity should be above 95%.
Calcium-containing feed meal mainly refers to limestone powder, which is natural calcium carbonate. Stone powder contains more than 35% pure calcium, which is the cheapest and most convenient mineral raw material for calcium supplementation. Stone powder accounted for the amount of concentrates: Slug was 0.5% to 1.0%, young deer was 1.0% to 1.5%, and adult deer was 2% to 3%. In addition, marble, dolomite, hydrated lime, gypsum, and white quaternary stones can all be used as calcium-containing feeds.
Eggshell powder and shell powder are powders made after drying of fresh egg shells and shells, generally containing 4% of calcium carbonate, equivalent to 38.6% of calcium.
The bones of phosphorus-containing feedstuffs are made by comminution and processing. The contents of calcium and phosphorus are high, and the ratio is suitable. It is a good supplement for calcium and phosphorus in deer. However, odorous bone meal deer do not eat.
Calcium hydrogen phosphate is a phosphorus-rich feed, generally having a calcium content of 21% and a phosphorus content of 16%. It is mainly used with calcium-containing feeds to ensure the proper ratio of calcium and phosphorus (usually 1.5:1 to 2:1). When using bone meal and calcium hydrogen phosphate, care should be taken to prevent fluorosis.
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