Effects of supplementation of dried distillers grains with solubles to beef steers grazing Coastal bermudagrass on performance on pasture and in feedlot, and carcass characteristics

Autor: William B Smith, Luis O Tedeschi, Francis M. Rouquette, J. P. Banta, L. A. Redmon, T.J. Machado, Jamie L. Foster
Rok vydání: 2021
Předmět:
Zdroj: Applied Animal Science. 37:155-165
ISSN: 2590-2865
DOI: 10.15232/aas.2020-02120
Popis: Objective The objective of this study was to determine the influence of varying levels of dried distillers grains with solubles (DDGS) supplemented daily on the performance of beef stocker cattle grazing Coastal bermudagrass [Cynodon dactylon (L.) Pers.] pastures. Materials and Methods Steers (n = 127, 342 ± 5.6 kg of BW) were stratified by BW and breed type and randomly allocated to 9 pastures (1.3 ± 0.17 ha) during each summer of 2 yr (2014, 2015). Pastures were allocated randomly to 1 of 3 treatments, including 2 daily levels of a DDGS supplement (SUPP; 0.25 or 1% BW) and a nonsupplemented control (PAS) for 96 d in 2014 and 92 d in 2015. Steers were shipped approximately 700 km to a commercial feedlot for the finishing phase. Finally, animals were transported less than 100 km for slaughter at a commercial abattoir. Results and Discussion Steer ADG on pasture tended to increase quadratically (P = 0.06) from 0.67 kg/d from PAS to 1.01 kg/d from 1% BW SUPP. Gain per hectare increased linearly (P 0.36). Implications and Applications Supplementation of steers with 1% BW DDGS resulted in the most efficient management strategy.
Databáze: OpenAIRE