Effect of supplemental energy source and frequency on growing calf performance

Journal of Animal Science
T W LoyJ C MacDonald

Abstract

Crossbred heifers (n = 120; 265 kg, SD = 37) were fed individually (84 d) to determine the effect of supplement type, concentration, and frequency on intake and performance and to estimate the energy value of dry distillers grains plus solubles (DDGS) in a high-forage diet. Treatments were arranged in a 3 x 2 x 2 factorial, with 3 supplements, 2 concentrations, and 2 frequencies of supplementation. Supplements including dry-rolled corn (DRC), DRC with corn gluten meal (DRC + CGM), and DDGS were fed at 0.21% (LOW) or 0.81% (HIGH) of BW daily and were provided daily (DAILY) or 3 times weekly (ALT). Heifers were fed to consume grass hay (8.7% CP) ad libitum. Individual DMI, diet composition, BW, and ADG were used to calculate energy values for DDGS and DRC. Supplement type, concentration, frequency, and interactions were tested using the MIXED procedure of SAS, with BW included as a covariate. Supplement x concentration interactions for gain (P = 0.01) and G:F (P < 0.01) were detected. At the LOW concentration, heifers supplemented with DDGS gained more and were more efficient (P </= 0.03) than those supplemented with DRC or DRC + CGM. No performance differences were observed (P >/= 0.22) between DDGS and DRC + CGM in HIGH treatme...Continue Reading

References

Sep 1, 1992·Journal of Dairy Science·G A Broderick, N R Merchen
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Jan 1, 1997·Journal of Animal Science·S L LodgeD W Herold
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Nov 24, 1999·Journal of Animal Science·J E HustonR V Machen

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Citations

Apr 21, 2012·Animal Science Journal = Nihon Chikusan Gakkaihō·Toshihiro NadeNobuhiro Kimura
Oct 27, 2016·Journal of the Science of Food and Agriculture·Ana I TrujilloPablo Chilibroste
Jan 1, 2010·Journal of Animal Science·N J Bailey, R L Kallenbach
Aug 26, 2021·Translational Animal Science·Tyler J SporeAndrea K Watson

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