Relationships between postweaning residual feed intake in heifers and forage use, body composition, feeding behavior, physical activity, and heart rate of pregnant beef females.

@article{Hafla2013RelationshipsBP,
  title={Relationships between postweaning residual feed intake in heifers and forage use, body composition, feeding behavior, physical activity, and heart rate of pregnant beef females.},
  author={Aimee N. Hafla and Gordon E. Carstens and T. D. A. Forbes and Lu{\'i}s Orlindo Tedeschi and Jeffrey C. Bailey and Joy T. Walter and James R. Johnson},
  journal={Journal of animal science},
  year={2013},
  volume={91 11},
  pages={5353-65}
}
The objectives of this study were to determine if residual feed intake (RFI) classification of beef heifers affected efficiency of forage utilization, body composition, feeding behavior, heart rate, and physical activity of pregnant females. Residual feed intake was measured in growing Bonsmara heifers for 2 yr (n=62 and 53/yr), and heifers with the lowest (n=12/yr) and highest (n=12/yr) RFI were retained for breeding. Of the 48 heifers identified as having divergent RFI, 19 second-parity and… CONTINUE READING

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