The Clay or Vitamin E in Silver Montazah Layer Hens Fed on Diets Contaminated by Lead
Forum: The Role of Clay or Vitamin E in Silver Montazah Layer Hens Fed on Diets Contaminated by Lead at Various Levels. Performance and Egg Components
Prof. Dr. Ayyat Mohamed Salah, A. I. Attia (Zagazig University) A. A. Bakir and A. A. El – Zaiat (Animal Production Research Institute, Egypt)
SUMMARYA total number of 240 laying hens and 24 cocks of Silver Montazah strain at 40 weeks of age were randomly divided into 12 groups (20 hens and 2 cocks / each treatment group). Birds in all treatments were nearly similar in the average initial body weights and average daily egg production A 4 x 3 factorial design experimentwas performed including four levels of supplemented lead (0. 250,500 a...