Calcium is an important nutrient to ensure high and stable production of laying hens. Normal hens need 4-4.4 grams of calcium per egg. If the calcium intake of laying hens is insufficient, not only is cartilage disease prone to occur, but the eggshell quality and egg production rate are also affected. When the calcium content in the diet exceeds 4%, it will cause the accumulation of urate in the chicken, causing indigestion, causing chicken diarrhea or gout, and poor feed palatability, chicken feed intake and production. The decrease in the amount of eggs severely affects its production performance and reduces the feeding efficiency. Therefore, farmers must take scientific calcium supplementation.
1. Timely calcium supplementation two weeks before the chicken is opened
In order to make chickens produce eggs and produce high-quality eggs, calcium supplements should be started two weeks before the start of production. Practice has proved that the content of calcium in the diet of laying hens is 3%-3.5%. This will not only prevent the lack of calcium in the chicken, but will not consume the calcium in the bone marrow, and it will ensure the calcium requirement for the chicken during normal egg production.
2. Daily supplement of high calcium feed at 12-18 hours
Tests have shown that chickens do not need calcium for the time being within 8-10 hours after laying eggs, but only when they form eggshells at night they need a lot of calcium. Because the chicken can not retain too much calcium, excess calcium will be excreted. Therefore, it is best to supplement the chicken with high-calcium feed at 12-18 hours a day. At this time, calcium is absorbed into the blood and can be used directly for the formation of egg shells at night, without having to consume the calcium in the bone marrow, which helps maintain the balance of calcium in the chicken body and enables the chicken to produce more eggs.
3. The proportion of calcium and phosphorus in feed should be appropriate
Since the absorption of calcium by chickens is affected by phosphorus, calcium can only be used better when the balance of calcium and phosphorus is balanced. When the ratio of calcium to phosphorus is in the range of 2:1 to 1:1, the effect of calcium absorption is best. At the same time, we must pay attention to vitamin D3 supplementation, which can promote the absorption of calcium by the small intestine and promote the normal calcification of the bone marrow, which will help improve the eggshell quality and egg production rate.
4. Add the appropriate amount of vitamin C in the diet
Studies have shown that vitamin C can increase the activity of the thyroid gland, promote calcium metabolism in the body, secrete calcium from the bones, increase the calcium content in the blood, thereby improving the composition of the eggshell, increasing eggshell hardness and egg production. . The amount of vitamin C in the diet should be 50 mg per kilogram of feed.
5. Pay attention to the quality of the full price feed
At present, the quality of laying hens on the market is uneven, and some small-scale feed factories reduce the cost, and a large amount of stone powder is added to the full-rate feed to make the calcium content exceed 4%. Feeding chickens on such feeds will lighten eggshell color and reduce egg production. Therefore, when purchasing full-price layer chicken feed, you should select high-quality, full-priced ingredients that are manufactured by regular manufacturers.
6. Pay attention to the influence of stress factors
Vitamin Supplement
Feed Grade Vitamins,Vitamin K Powder,Natural Vitamin E,Bulk Vitamin B Powder
Ningbo Nutrition Food Technology Co.,ltd. , https://www.collagenworkshop.com