Turtles enter the turtle-producing period. With the increase of the eggshell deposition rate, the amount of calcium material used by turtles also increases. Therefore, in order for the turtle to produce a good egg, it is better to give it to the calcium
Feed before it is opened. It is not always better to supply calcium to species of turtles. Generally, 1.2 g of calcium is required for each egg to produce. If the calcium content in daily feed exceeds 4%, on the one hand, urate will accumulate in the turtle's body. Intestinal indigestion is caused by turtles; on the other hand, the palatability of foods is reduced, and the feed intake and egg production of turtles are reduced. Therefore, the daily dietary calcium content can be maintained between 2.2% and 2.8%. The preferred source of calcium for the species of turtles is calcium-derived marine shells. After the coarse shells are crushed, the calcium content is 35%-37%, and then the required amount of calcium per species turtle is mixed with other feedstuffs and processed into granules. Can feed. Can also be crushed into particles with a particle size of 8 to 12 meshes, directly mixed with other feeds and fed. According to experiments, this kind of shell powder has a good effect on the amount of eggs laid by the species, the fertilization rate of eggs, the hatching rate of hatchlings, and the calcium content of serum. Shengjiang County Niutou Agriculture and Animal Husbandry Fishery Technical Service Station Shi Sheng
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