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pro vyhledávání: '"A. E. El-Hais"'
Publikováno v:
Egyptian Journal of Nutrition and Feeds. 21:623-631
This study was conducted to investigate the influence of zinc sulfate and zinc methionine supplementation on the nutrients digestibility, nutritive values of feeds and ruminal fermentation of sheep. Fifteen sheep averaged (52.2 ± 1.40 kg)were divide