Choosing good calcium sources generally uses limestone and shells as the main source of calcium, but the proportion should be appropriate. The ratio of lime and shell powder is appropriate to 2:3. Plus 1% of bone meal, the strength and smoothness of eggshell are the best.
Calcium supplementation time of 15 weeks is the best time to start calcium supplementation. Calcium supplementation should be between young ducklings and laying ducks, with an appropriate rate of 2.5%, and gradually increase thereafter.
Pay attention to the optimal calcium supply in each stage of egg production. When the egg production rate is below 65%, calcium is 2.5%. When the egg production rate is between 65% and 80%, calcium is 3%. When the egg production rate is above 80%, Calcium is 3.21% to 3.5%. The supplemental particle calcium is best used with 50% of the shells and 50% of the limestone, so that the duck can absorb calcium well. In addition, to ensure that 14 to 17 hours of sunshine, is conducive to the absorption and utilization of calcium, increase egg production rate.
Garlic Powder,Dehydrated Garlic Powder,Dehydrated Garlic
Ginger,Garlic &Peeled Garlic, Co., Ltd. , http://www.nsvegetables.com
没有评论:
发表评论