Effects of different feeding strategies on egg production, eggshell quality, tibial mass and intestinal calcium transporter expression in laying hens.

• Tác giả: Z M Fu, X X He, V R Pirgozliev, S P Rose, X Wan, Z Wang, H Yang, Z Yang, L R Zhu
• Ngôn ngữ: eng
• Ký hiệu phân loại: 948.5038 *Sweden
• Thông tin xuất bản: England : British poultry science , 2025
• Bộ sưu tập: NCBI
• ID: 699310

Tóm tắt

 1. This study examined feeding practices that could affect the expression of intestinal calcium transporter gene, tibial mass, eggshell quality and production performance in 25-week-old Hy-Line Brown Laying Hens.2. In this study, 360 healthy 25-week-old Hy-Line Brown laying hens were divided into three treatment groups with 10 replicates of 12 hens per group. The groups were fed as follows: 1) Twice a day, 50% of the standard breeder diet was fed at 8:00 and 15:00 (CFG)
  2) Two-thirds of the standard breeder diet was fed at 8:00 and 15:00 (UFG), respectively
  3) Two different diets were fed separately, 50% at 8:00 and 50% at 15:00 (SFG)3. The feed-to-egg ratios of the CFG and SFG groups were significantly higher than those of the UFG group. The eggshell weight of the UFG group was numerically reduced (