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Long-term Effects of Boron Supplementation on Reproductive Characteristics and Bone Mechanical Properties in Gilts by T. A. Armstrong; W. L. Flowers; J. W. Spears; F. H. Nielsent is a Agricultural and Biological Sciences article available to read on EtoBox.

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An experiment was conducted to determine long-term effects of dietary boron (B) on reproductive and bone characteristics in gilts. Weanling gilts (n = 50) were allotted to 10 pens based on weaning weight and litter origin. Pens were randomly assigned to receive one of two dietary treatments that consisted of a basal diet low in B (control) and the basal diet supplemented with 5 mg of B/kg diet as sodium borate. Gilts remained on their respective experimental diets throughout the nursery phase, growing-finishing phase, sexual maturity, breeding, gestation, and lactation. The day of first observed standing estrus was defined as puberty, and each pubertal gilt was bred via AI at the second observed standing estrus. Eight randomly selected gilts per treatment were slaughtered at d 35 of gestation for the assessment of embryonic and reproductive characteristics, bone characteristics, and tissue B concentrations. The remaining pregnant gilts (con-

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Author

T. A. Armstrong; W. L. Flowers; J. W. Spears; F. H. Nielsent

Publisher

Oxford University Press (OUP)

Published

2002

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)