Stimuvital Shell Improver

Overview

An egg's shell is roughly 95% calcium carbonate — a 60g egg requires 2.3g of calcium to form. Hens store 99% of their body calcium in bone and draw on it overnight when the shell is forming, with only 60–70% of shell calcium coming directly from the diet on shell-forming days. As hens age, egg size increases while shell thickness declines, driving cracked and downgraded eggs. Stimuvital Shell Improver (StimuVital IP) is an in-water calcium and Vitamin D₃ supplement that supports calcium metabolism and helps sustain eggshell quality through the lay cycle.

Dosage & Application

• Recommended feeding rate: 1.25L per 1000L of drinking water
• After 40 weeks of age: 3 days every 2 weeks
• After 60 weeks of age: 3 days every week

Key Points

• +3.4% improvement in egg shell strength (commercial trial, Lohmann Brown layers, weeks 53–64)
• +2.3% higher egg shell thickness
• Improved average egg weight over the trial period
• Also supplies Vitamins A, E and C to support birds through stress, aiding nutrient absorption and feed conversion