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Effect of Feeding a High Calcium: Phosphorus Ratio, Phosphorous Deficient Diet on Hypophosphatemic Rickets Onset in Broilers

Author

Listed:
  • Lei Xu

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

  • Ning Li

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

  • Yuhua Z. Farnell

    (Department of Poultry Science, Texas A&M AgriLife Research, Texas A&M University, College Station, TX 77843, USA)

  • Xiaoli Wan

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

  • Haiming Yang

    (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)

  • Xiangqian Zhong

    (Suqian Animal Husbandry and Veterinary Station, Suqian 223800, China)

  • Morgan B. Farnell

    (Department of Poultry Science, Texas A&M AgriLife Research, Texas A&M University, College Station, TX 77843, USA)

Abstract

Recently, a P-deficient diet caused rickets in commercial chicks within three days. This study aimed to investigate the duration of onset of rickets in chicks. Data were collected from 3–11 day old chicks raised on 88 commercial farms. Male day-old Arbor Acres Plus broilers (n = 450) were studied in three trials, with three to four treatments each. Each treatment used one of the following crumbled feeds: control feed (calcium (Ca): phosphorus (P)-1.41), slightly high Ca:P feed (SHCa:P, Ca:P-2.69), high Ca:P ratio, P deficient feed (HCa:P, Ca:P-3.08), and HCa:P feed plus 1.5% dicalcium phosphate (HCa:P + DP). Each treatment had three replicates with 15 birds each. Rickets was induced by HCa:P, and cured by HCa:P + DP, confirmed by gross anatomy, gait score, serum P concentration and growth performance. Lameness was not found in control groups, whereas, observed in the HCa:P groups as early as day 2.7 on commercial farms and day 3 in experimental farm. Serum P was reduced in HCa:P ( p < 0.01). Bodyweight and feed intake started decreasing at day 3 on commercial farms and in all trials ( p < 0.01). The duration of onset of hypophosphatemic rickets in broiler chicks fed HCa:P crumbled feed is approximately three days.

Suggested Citation

  • Lei Xu & Ning Li & Yuhua Z. Farnell & Xiaoli Wan & Haiming Yang & Xiangqian Zhong & Morgan B. Farnell, 2021. "Effect of Feeding a High Calcium: Phosphorus Ratio, Phosphorous Deficient Diet on Hypophosphatemic Rickets Onset in Broilers," Agriculture, MDPI, vol. 11(10), pages 1-13, October.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:10:p:955-:d:648129
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    Citations

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    Cited by:

    1. István Komlósi, 2022. "Recent Advancements in Poultry Health, Nutrition and Sustainability," Agriculture, MDPI, vol. 12(4), pages 1-2, April.
    2. Ning Li & Yuanjing Chen & Lei Xu & Guoqiang Su & Zhiyue Wang & Haiming Yang, 2022. "Requirement of Non-Phytate Phosphorus in 1- to 28-Day-Old Geese Based on Growth Performance, Serum Variables, and Bone Characteristics," Agriculture, MDPI, vol. 12(4), pages 1-13, March.
    3. Ning Li & Jiayi He & Hao Chen & Yuanjing Chen & Lei Chen & Haiming Yang & Lei Xu & Zhiyue Wang, 2022. "Effects of Dietary Phosphorus Deficiency and High Phosphorus Content on the Growth Performance, Serum Variables, and Tibia Development in Goslings," Agriculture, MDPI, vol. 12(11), pages 1-17, November.

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