L‐aspartic acid and urea supplementation of low‐protein layer diets1

Journal Paper No. J‐8276 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa, USA. Project 1984.

1. Urea supplementation of low‐protein (125 g/kg) conventional‐type diets for layers, whether containing fish meal or not, did not appear advantageous.

2. Supplementation of the low‐protein diet with aspartic acid did not affect egg production rate or efficiency.

3. Soyabean meal supplementation of the low‐protein diet increased egg weight significantly whereas aspartic acid did not.

Notes

Journal Paper No. J‐8276 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa, USA. Project 1984.