Effects of a nanostructure of phytic acid absorber on the performance and protein digestibility in laying hens
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 309
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_KLST-5-2_001
تاریخ نمایه سازی: 12 خرداد 1398
چکیده مقاله:
A ten-week experiment was conducted to study the effect of a nanostructure of phytic acid absorber (NPAA) on the performance and protein digestibility in laying hens. A total of 100 Bovans laying hens were randomly assigned to 5 treatments, with 4 replicates, 5 hens each. The experiment was a completely randomized design with 5 levels of NPAA; including zero (T1, as a basal diet (BD)); T2 (BD+ 0.5% NPAA); T3 (BD + 0.25% NPAA); T4 (BD + 0.0625% NPAA) and T5 (BD + 0.03125% NPAA of total P) in diet. Water and feed were offered ad libitum. Inclusion of NPAA to the diet had significant effects (P<0.05) on egg production (%) at 25 weeks of age and over the whole experiment. Dietary treatments significantly affected the egg weight (P<0.001) at 29th weeks of age, and hens receiving T5 produced heavier eggs compared to T1, T2 and T3 treatments. NPAA also affected (P<0.05) the egg mass and feed conversion ratio (FCR) at weeks 29 and 30. Egg shell weight was significantly (P<0.05) affected at 29th week of age; however, dietary treatments had no effect on the relative egg shell thickness. Egg shell phosphorus and calcium contents were increased by 14.6 and 14.2% respectively at 29th week of age in T5 compared to the control. At 33rd week of age, hens in T4 group had significantly higher protein digestibility than T1 birds (P<0.05). It was concluded that inclusion of NPAA to the diet at the level of 0.0625%, may reduce the anti-nutritional effects of phytic acid and improve production performance and protein digestibility in laying hens.
کلیدواژه ها:
نویسندگان
S. Ghaseminejad
Department of Animal Sciences, Faculty of Agriculture, University of Jiroft, Jiroft, Iran.
N. Ziaei
Department of Animal Sciences, Faculty of Agriculture, University of Jiroft, Jiroft, Iran.
M. Ranjbar
Department of Chemistry, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran.
S. Tasharrofi
Natural Resource and Agricultural Research and Education Center of Kerman, Kerman, Iran.
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :