Effect of replacing barley silage with calcium oxide-treated barley straw on rumen fermentation, rumen microbiota, nutrient digestibility, and growth performance of finishing beef cattle

Autor: Gregory B Penner, Gabriel O Ribeiro, John J McKinnon, Stephanie A. Terry, Robert J. Gruninger, Tim A. McAllister, Katelyn R Stehr, D. J. Gibb
Rok vydání: 2021
Předmět:
Zdroj: Canadian Journal of Animal Science. 101:493-506
ISSN: 1918-1825
0008-3984
Popis: Effect of calcium oxide (CaO) treatment of barley straw and salt on rumen fermentation, microbiota, digestibility, growth, and carcass quality of cattle was assessed. A replicated 4 × 4 Latin square metabolism experiment was conducted using eight heifers fed a wheat finishing diet with barley silage (B-SIL), barley straw (B-S), or 5.0% CaO-treated barley straw (CaOS) with or without NaCl (CaOS-NS). Growth over 115 d was assessed using 75 individually housed steers fed the above diets and an additional diet (I-CaOS), where CaO was added to straw just before feeding. There was no effect (P ≥ 0.08) of diet on rumen fermentation, digestibility, or carcass quality, although CaO decreased (P
Databáze: OpenAIRE