Effects of boron on growing pullets |
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Authors: | James H Wilson Paul L Ruszler |
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Institution: | (1) Departments of Biological Systems Engineering and Animal and Poultry Science, Virginia Polytechnic Institute and State University, 24061-0303 Blacksburg, VA |
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Abstract: | The effects of dietary boron on bone ash content and on the ultimate shear force, stress, and fracture energy of the tibia,
femur, humerus, and radius from white Leghorn pullets were investigated. There was a significant increase in the shear force
of the tibia and femur for pullets supplemented with 50 and 100 mg/kg of dietary boron. There was a significant increase in
the shear stress of the tibia at 50 and 100 mg/kg of boron, and also an increase in shear fracture energy at 50 and 100 mg/kg
boron for the femur. Tibia bone ash content increased significantly at 50, 100, and 200 mg/kg boron with the highest value
at 50 mg/kg. Even though there was not a significant increase in body wt at 50 and 100 mg/kg boron, the pullets fed these
supplements were consistently heavier than the control group. |
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Keywords: | Boron shear force shear stress pullets trace element |
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