Pmn-21: Inclusion of Sunflower Seed in Diet at Different Levels Has A Negative Influence on The Different Reproductive Morphology Parameters

Background: Effect of feeding with different levels of sunflower seeds on Reproduction system in laying hens Materials and Methods: A total of 160 white Bovens hens at 30 weeks of age were housed in cages in an open-sided building under a 16 h light: 8 h dark lighting schedule. Birds were randomly divided into four treatments and were fed, ad libitum, diets containing 0% 6% and 9% sunflower seeds from 30 to (control), 3%٫ 36 weeks of age. At the end of the experimental period, 8 females from each treatment were randomly chosen, anaesthetised and killed by decapitation. Ovary and oviduct samples were immediately weighted and ovarian follicles were classified Results: No negative effects were detected in ovary and oviduct weights, expressed in both absolute terms and relative to body weight. The numbers and total weights of large yellow follicles (LYF) in the ovary were significantly affected by sunflower seeds supplementation (p<0.05) Conclusion: it could be concluded that inclusion of sunflower seed in laying hen diets at different levels have a negative influence on the different reproductive morphology parameters in laying hens.