Feeding a Brown Midrib Corn Silage-Based Diet to Growing Beef Steers Improves Growth Performance and Economic Returns

Autor: Saunders, C. S., Yang, S. Y., Eun, J.-S., Feuz, D. M., ZoBell, D. R.
Přispěvatelé: Agricultural Institute of Canada
Rok vydání: 2015
Předmět:
Zdroj: Animal, Dairy, and Veterinary Science Faculty Publications
Popis: A feedlot experiment was performed to determine growth performance, ruminal fermentation characteristics, and economic returns for growing beef steers when fed a brown midrib corn silage-based total mixed ration (BMRT) compared with a conventional corn silage-based total mixed ration (CCST). Twenty-four Angus crossbred steers (initial body weight=258±23.2 kg) in individual pens were used in a completely randomized design (n=12). Intake of dry matter was not different between the treatments. Steers fed the BMRT tended to have greater average daily gain (1.54 vs. 1.42 kg d−1; P=0.09) and gain-to-feed ratio (0.165 vs. 0.146; P=0.07) compared with those fed the CCST. Feeding the BMRT increased total volatile fatty acid (VFA) concentration (P=0.01) compared with the CCST, while it decreased molar proportion of acetate (P
Databáze: OpenAIRE