Effects of phytase supplementation on laying performance in Pekin hybrid parent stock | ผลของการใช้เอนไซม์ไฟเตสต่อประสิทธิภาพการผลิตของเป็ดพ่อแม่พันธุ์ปักกิ่งลูกผสมระยะไข่
2011
Ongart Tantavanich | Monticha Putsakum | Sirilag Wongpichet
Experiment was conducted to study egg production, egg shell quality, hatchability, feed intake, mortality rate and feed cost per egg of Pekin hybrid parent stock fed with phytase supplemented diets. One thousand and two hundred females and two hundred and forty males were sampling allocated into 3 treatment groups with 2 replications in completely randomized design. All groups were fed with commercial diets supplemented with 0, 300 and 500 units of phytase/kg feed. The results showed that the number of small eggs and egg weight were significantly different (P<0.05) in all treatments. The treatment supplemented with 300 units of phytase/kg feed had the lowest number of small eggs (3.88 eggs/200 ducks/day), and had the highest egg weight (80.48 grams/egg). No significant differences were found in the number of hatchability eggs, the number of identical eggs, the number of total eggs, egg shell quality, hatchability, feed intake, mortality rate and feed cost per egg.
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