Effects of feeding energy or protein supplements before or after calving on performance of spring-calving cows grazing native range.

@article{Marston1995EffectsOF,
  title={Effects of feeding energy or protein supplements before or after calving on performance of spring-calving cows grazing native range.},
  author={T. Marston and K. Lusby and R. Wettemann and H. T. Purvis},
  journal={Journal of animal science},
  year={1995},
  volume={73 3},
  pages={
          657-64
        }
}
In three consecutive years, spring-calving Hereford and Hereford x Angus cows (n = 348) were used to determine effects of level of supplemental energy or protein before and after calving on cowherd performance. Beginning on November 1, cows were individually fed 1.22 kg/d of a 40% CP (PROTEIN) or 2.44 kg/d of a 20% CP supplement (ENERGY) until calving. After calving, cows remained on the same supplement, were switched to the other supplement, or were fed 2.44 kg/d of a 40% CP supplement (HI… Expand

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