Foire aux Questions

Mainly refers to pale eggshell color, dull and non-vibrant eggshell color, lack of luster, many soft-shelled eggs, thin eggshells, easily broken, sandy-shelled eggs. Thick but brittle eggshells, fragile quality, many damaged eggs.

Nutritional Factors

• Insufficient calcium intake.
• Insufficient vitamin D3 intake.
• Unreasonable nutritional ratio, high protein, large eggs.
• Low antibody levels (insufficient or high dispersion in Newcastle disease or influenza antibodies).
• Influence of mycotoxins.

Management Factors

• Long intervals between egg collection.
• Improper medication.
• Flock startled.
• In large-scale farms, egg collection equipment failure, excessive gap at the junction of egg collection belt and egg belt recovery.

Disease Factors

Certain diseases affect eggshell quality, such as viral diseases like Newcastle disease and infectious bronchitis, egg drop syndrome, salmonellosis, E. coli disease, etc., making eggshells pale, uneven thickness, lighter color.

Mainly refers to pale eggshell color, dull and non-vibrant eggshell color, lack of luster, many soft-shelled eggs, thin eggshells, easily broken, sandy-shelled eggs. Thick but brittle eggshells, fragile quality, many damaged eggs.

Nutritional Factors

• Insufficient calcium intake.
• Insufficient vitamin D3 intake.
• Unreasonable nutritional ratio, high protein, large eggs.
• Low antibody levels (insufficient or high dispersion in Newcastle disease or influenza antibodies).
• Influence of mycotoxins.

Management Factors

• Long intervals between egg collection.
• Improper medication.
• Flock startled.
• In large-scale farms, egg collection equipment failure, excessive gap at the junction of egg collection belt and egg belt recovery.

Disease Factors

Certain diseases affect eggshell quality, such as viral diseases like Newcastle disease and infectious bronchitis, egg drop syndrome, salmonellosis, E. coli disease, etc., making eggshells pale, uneven thickness, lighter color.

Mainly refers to pale eggshell color, dull and non-vibrant eggshell color, lack of luster, many soft-shelled eggs, thin eggshells, easily broken, sandy-shelled eggs. Thick but brittle eggshells, fragile quality, many damaged eggs.

Nutritional Factors

• Insufficient calcium intake.
• Insufficient vitamin D3 intake.
• Unreasonable nutritional ratio, high protein, large eggs.
• Low antibody levels (insufficient or high dispersion in Newcastle disease or influenza antibodies).
• Influence of mycotoxins.

Management Factors

• Long intervals between egg collection.
• Improper medication.
• Flock startled.
• In large-scale farms, egg collection equipment failure, excessive gap at the junction of egg collection belt and egg belt recovery.

Disease Factors

Certain diseases affect eggshell quality, such as viral diseases like Newcastle disease and infectious bronchitis, egg drop syndrome, salmonellosis, E. coli disease, etc., making eggshells pale, uneven thickness, lighter color.

If before 100 days, adjustments can still be made. After 100 days, adjustments are difficult.

• Before 100 days, calculate feed intake to see if it is normal; if not, treat. At the same time, adjust feed formula.
• Add 1 hour of light at 12 midnight to promote feeding, regular weighing is very important.
• Increase feeding frequency, feed less but more often.

Overweight:

Exceeding standard weight by +10% or more, each hen consumes 7 jin more full-price feed per production cycle than normal hens, production performance does not improve, later mortality rate increases by 1%.

Underweight:

Prone to egg retention at onset of lay, slow peak climb. Egg weight not meeting standards. High later mortality, light weight of culled hens.

Causes of juvenile chickens not meeting standards:

Disease Factors

Chick adenogastritis, coccidiosis, mycotoxins, synovial arthritis diseases affect flock growth rate. Especially adenogastritis and synovial arthritis affect vitamin absorption and utilization, affect molting speed, thereby hindering flock growth.

Management Factors

Unreasonable flock density, no timely grouping. Hazards of juvenile chickens not meeting standards: Body weight and shank not meeting standards directly affect laying hens’ onset of lay time, climbing speed, and peak maintenance duration. Light weight, underdeveloped shank: Prone to prolapse at onset of lay, light egg weight, prone to paralyzed chickens.

Overweight

Many double-yolked eggs after onset of lay, high feed intake, high feed-egg ratio.drop syndrome, salmonellosis, E. coli disease, etc., making eggshells pale, uneven thickness, lighter color.