The scientific calcium supplement in captive ducks

To increase the egg production rate of the captive ducks and the commodity rate of the eggs, in addition to satisfying the needs for protein and energy nutrition, it is necessary to do scientific calcium supplementation. This includes the following aspects:

1. Select a good source of calcium limestone, shells, etc. as the main source of calcium, but the proportion should be appropriate, stone powder, shell powder ratio of 2:3 is appropriate. With feeding 1% bone meal, the strength and smoothness of the eggshell are the best.

2. Calcium-supplementing time is appropriate. The laying-up ducks begin to lay eggs around the age of 100 days, and 15 weeks of age is the best time to start calcium supplementation. Calcium should be between the young duck and the laying duck, with an appropriate rate of 2.5%, and gradually increase thereafter.

3. The best amount of calcium in each stage of laying The utilization of calcium in laying ducks is about 65%. 4.8g - 5.12g of calcium is required to produce one egg. Practice has proved that when the egg production rate is below 65%, calcium is 2.5%; when egg production rate is between 65% and 80%, calcium is 3%; when the egg production rate is above 80%, calcium is between 3.2% and 3.5%.

4. Make up the particle calcium The best particle calcium stays in the digestive tract for a long time. It can evenly supply calcium during the eggshell formation phase. At the same time, the granular calcium has a grinding effect similar to that of sand in the stomach, which can promote the digestion and utilization of feed. Practice has shown that with 50% of the shells and 50% of limestone in combination, the duck can absorb calcium well.

5. The supply of vitamin D in the diet should be guaranteed (liquid cod liver oil or vitamin AD capsules can be used), and the ratio of calcium to phosphorus can be controlled from 5:1 to 6.5:1, which is beneficial to the absorption and utilization of calcium.

6. According to the egg production rate, guarantee 14 hours -17 hours of light. Because sunlight can make feathers, skin ergosterol in the blood into vitamin D, which is conducive to the absorption and utilization of calcium.

Fresh Red Garlic

Introduction:

The bulb of garlic,an allium plant in the lily family.with the pungent flavor and spicy taste.spherical shape with a diameter of 3-6.5cm. The surface is covered with white and papery-skin.

The top is slightly pointed, with residual scape in the middle,many fibrous root marks at the base. After peeling off the skin, a single head or 6 to 16 petal-shaped small bulbs, inserted around the base of the remaining flower stems. The bulbous valve is slightly ovoid, with a membranous outer skin, slightly pointed at the apex, and an arcuate bulge on one side.

In order to ensure the maximum freshness and nutrients.

We adhere to the traditional natural drying method without any human intervention.

Our fresh red garlic contains thiamine, riboflavin, nicotinic acid, allicin, citral, selenium and germanium.etc

Therefore help to improve immunity,anti-aging,lower blood sugar and pressure,improve indigestion etc.

what'more,it`s the easy way to improve flavor,add unique aroma for your food.

Specification

Brand:Changrong

Variety:Liliaceous Vegetables

Color:Purple red

Fresh Red Garlic,Chesnok Red Garlic,Red Chinese Garlic,Natural Fresh Red Garlic

shandong changrong international trade co.,ltd. , https://www.cragriculture.com