The shell shade guide and nutritional factors affecting egg shell color

There are many factors that influence the eggshell color. We add the method of eggshell color from the following introduction:

1. Increase 1%-3% blood meal has certain help to increase in chicken eggshell color formula, there may be relationship between iron and blood hemoglobin.

2. We know eggshell components: calcium: 38%: 0.2%; total phosphorus; salt: 0.02%: 8.24ppm; zinc; copper: 20.1ppm; 196ppm; iron: Mn: 6.5ppm; 0.28ppm; iodine selenium:: 23.9ppm, the iron content is relatively high, in the absorption of iron, oxygen plays a key factors, strengthening ventilation will be of great help to the eggshell color. Poor ventilation is why winter is relatively not good reason of eggshell color.

3. Strengthening vitamin B6, which will lead to a lack of fallopian tube atrophy, folic acid is a normal immune system development, an important cofactor mature blood cells. The hen is mainly premix, so the niacin in corn / soybean meal diet is easy to lack, and easy to cause diarrhea, and it is also an important factor in skeletal, shell deformation. K3 is an important cofactor of thrombin, B6 similar to participate in various proteins, especially the hemoglobin, an important vitamin blood cell production. Hen comb, egg white have relationship with this, if it is chronic coccidial infection has increased the demand for. B12 is called the "animal protein", mainly in animal protein (such as fish meal), B12 can affect the red blood cell maturation, pigment protoporphyrin synthesis thus affecting the eggshell color. Calcium to phosphorus ratio

4. Reasonable, brown shell layers in 3.5-3.8 grams daily calcium needs. Phosphorus is an indirect effect through the eggshell quality, calcium and other trace elements first, in layer diets were formulated, one hand consider absolute intake of phosphorus itself, according to the relative proportion of intake to determine the phosphorus, requirement of laying hens daily phosphorus was 330-360 mg, calcium and phosphorus to recommend the most suitable ratio of 1:9-12. Many studies have shown that phosphorus levels on egg quality has a negative effect especially in the late period of laying, phosphorus level should be lowered, hand and later need to decrease (about 40 weeks later, bone, muscle tissue growth basically completed); on the other hand, may also be associated with aging chicken its utilization of phytic acid phosphorus rate on. So in the process of laying hens using premix, late moderately reduced soybean meal (up to 22%) content, improve powder (up to 8.5-9%) content is favorable to egg laying performance and egg quality.

5. Pay attention to the incubation period of development organizations (in the latter part of the development of the reproductive organs) and the egg laying period supply of nutrients (especially energy and protein supply). Hen physiological reproductive organs mainly paid attention to in the incubation period in the late of excess in the late development, the increase of the content of VE will play a very good effect, and the egg laying period of vitamin E in favor of eggshell and eggshell color uniform smooth.

6. The reasonable and moderate intestinal health, such as: application of Acidifier, micro ecological, sodium butyrate, oligo xylose, composite enzyme in favor of layers of intestinal health, improve the digestibility of the feed, to increase the eggshell color, can choose one of them according to the formula and livestock and poultry or synergistic combination.