Effects of decreased dietary roughage concentration on energy metabolism and nutrient balance in finishing beef cattle

Journal of Animal Science
K E HalesH C Freetly

Abstract

The optimal roughage concentration required in feedlot diets changes continuously for many reasons such as source, availability, price, and interaction with other ingredients in the diet. Wet distillers grains and solubles (WDGS) are common in finishing diets and they contain relatively high amounts of fiber compared with other grains they replace. Therefore, concentration of roughage could be altered when WDGS are included in feedlot diets. There has been very little data published regarding the effects of roughage concentration on energy metabolism and nutrient balance in beef steers. Therefore, the effects of roughage concentration in dry-rolled corn (DRC)-based diets containing 25% WDGS were evaluated in 8 steers (BW = 362 ± 3.71 kg) using a replicated Latin square. Data were analyzed with the fixed effects of dietary treatment and period and random effects of square and steer within square were included in the model. Diets consisted of 25% WDGS and the balance being DRC and coarsely ground alfalfa hay (AH) replacing corn at 2% (AH-2), 6% (AH-6), 10% (AH-10), and 14% (AH-14) of dietary dry matter. As a proportion of GE intake, fecal energy loss increased linearly (P = 0.02), and DE decreased linearly (P = 0.02) as dietary l...Continue Reading

References

Mar 1, 1984·Journal of Animal Science·Y Geay
Aug 1, 1996·Journal of Dairy Science·J B Russell, D B Wilson
Mar 1, 1997·Journal of Animal Science·G B Huntington
Feb 12, 2005·Journal of Animal Science·K A Beauchemin, S M McGinn

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Citations

Jun 2, 2015·PloS One·Phillip R MyerHarvey C Freetly
Apr 4, 2017·Animal Science Journal = Nihon Chikusan Gakkaihō·Watcharawit MeenongyaiMonchai Duangjinda
Mar 14, 2018·Asian-Australasian Journal of Animal Sciences·Kanokwan KongphiteeTomoyuki Suzuki
May 11, 2019·Journal of Animal Science·Emily A PetzelDerek W Brake
May 29, 2018·Asian-Australasian Journal of Animal Sciences·Nobuyuki KobayashiToshiyoshi Ichinohe
Jul 27, 2020·Translational Animal Science·Izabelle A M A TeixeiraKleber T Resende
Jan 22, 2018·Translational Animal Science·N Andy ColeJenny Jennings
May 25, 2019·Translational Animal Science·Levi A TrubenbachJason E Sawyer

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