The quality requirements of duck eggs

1. The cleanliness of the surface of the eggshell should not include feces, dirt, etc. on the surface of the eggshell. Otherwise, the pathogenic microorganisms in the dirt will invade the egg, causing deterioration of the egg. Or because the dirt plugs pores, hindering the gas exchange of eggs, affecting the hatching rate. At the same time, the machine is contaminated during the incubation process. If there are a few eggs that are lightly contaminated, they must be treated before they are hatched before hatching.

2, the size of shape, egg shape should be required to be normal, oval, too long round, two sharp and other county is not suitable for the use of eggs, egg weight should meet the requirements of the species, the amplification is too small is not good, the egg weight is too small to pay Smaller ducklings, overweight egg weight, low hatching rate. Large meat duck eggs generally 85 ~ 95 grams is appropriate.

3, to ensure that the fresh eggs, the shorter the storage time of the eggs as possible, to store 7 days is appropriate, 3 to 5 days for the best preservation period. Eggs within two weeks can maintain a certain hatching rate. If it is more than two weeks, the hatching period will be postponed, the hatching rate will be reduced, and young ducklings will be more vulnerable. The degree of freshness of eggs is not only related to the preservation time, but also related to the preservation of temperature, humidity, methods, etc.

4. The structure of the eggshell is dense and uniform, with normal surface and moderate thickness. Eggshell thickness is generally 0.035-0.04 mm. When the eggshell is too thick and hard, it will be heated slowly when it is hatched, moisture will not evaporate, gas exchange will be bad, and shelling will be difficult. When it is too thin, the water will evaporate too quickly and the hatching rate will decrease. Eggshell structure is not uniform, rough surface, etc. are not suitable for the use of eggs.

5, the source of eggs should first pay attention to the quality of ducks, choose those who have stable genetic properties, excellent production performance, high fertility, good health of duck eggs.

Advantages of drip irrigation pipes

1.)Save water, save fertilizer and save labour

2.)Maintain soil structure

3.)Improve quality and increase grow efficiency

4.)Material of Drip Irrigation Pipe: New PVC modified nanomaterials. Sunscreen anti-aging. Long service life.

Usage method

1.)Drip irrigation pipe (commonly used drilling spacing 600mm), a length of about 60 meters suitable.

2.)The main pipe laying along the width of the greenhouse 32mm or more specifications.

3.)The main pipe and the drip irrigation pipe interface connected with tee junction

4.)The main pipe and the end of the water pipe are blocked with a plug

5.)Each drip pipe is connected to a ball valve to control the drip rate of flow

Specifications

Inner diameter : 10mm

Outside diameter: 12.5mm

Color: Green

Holes: 6 holes a group.

Holes distance: Usually 60cm ( the distances can be changed according to different crops )

Packing: 100 meters per roll.

Weight: 7kg per roll.

Drip Irrigation Pipe

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JiangYin ZhengMei Mechanical Equipment CO.,LTD. , http://www.zm-pvchose.com