A feather-sexed strain of laying hens was more responsive to dietary supplements of choline and methionine than a vent-sexed strain.

@article{Tsiagbe1992AFS,
  title={A feather-sexed strain of laying hens was more responsive to dietary supplements of choline and methionine than a vent-sexed strain.},
  author={V K Tsiagbe and Alfred E. Harper and Milton L. Sunde},
  journal={Poultry science},
  year={1992},
  volume={71 8},
  pages={1271-6}
}
A response surface design was used to study Cho and Met interactions with corn and soybean diets, using two strains of hens. The strains were a feather-sexed line (FS strain), and a vent-sexed line (SS strain). The diets contained 3% meat and bone meal and, on chemical analysis, 15.1% crude protein, .29% Met, .225% Cys, and 1,041 ppm of Cho. Nine diets were fed from 20 to 68 wk of age, using added Met levels ranging from 0 to 500 ppm and added Cho levels ranging from 0 to 1,500 ppm, to fix the… CONTINUE READING

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