Effect of Different Levels of Calcium, Phosphor and Vitamin D3 with Fennel Extract on, Performance and Egg Shell Quality in Post Molted Ross Broiler Breeders

The purpose of this experiment was to compare the effects of calcium, phosphorus, and fennel extract (FE) and vitamin D3 on performance and egg shell quality in post molted Ross broiler breeders from 96 to 102 weeks. Each pen consisted of 10 hens and 1 rooster. This experiment was done in a completely randomize design with seven treatments (different levels of calcium, phosphorus plus fennel extract or vitamin D3) that each treatments assigned to 4 replicates. The addition (50 mg/kg diet) FE had significant affection egg production, egg mass, settable egg, shell quality, relative albumin weight and body weight gain (p0/05), but lower levels of calcium and phosphorus (20%) significantly affect these parameters (p