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  • Title: Effect of wet or dry corn gluten feed on nutrient digestibility and milk yield and composition.
    Author: Bernard JK, Delost RC, Mueller FJ, Miller JK, Miller WM.
    Journal: J Dairy Sci; 1991 Nov; 74(11):3913-9. PubMed ID: 1661752.
    Abstract:
    A 22-wk trial was conducted to determine variations in nutrient concentrations of wet and dry corn gluten feed and their effect on nutrient digestibility and milk yield and composition. Holstein cows (n = 48) were blocked at parturition by parity and assigned randomly within block to one of three diets. All cows were fed a control TMR containing corn silage, ground corn, and commercial concentrate plus 2.3 kg/d of alfalfa hay during the 2-wk adjustment period. Thereafter, control diet was fed as wet or dry corn gluten feed substituted for 27% of dietary DM supplied by the control diet. Each cow received TMR for ad libitum consumption. Variations in nutrient concentrations of corn gluten feed were observed throughout the trial. The coefficient of variation was highest for ADIN, and standard deviation was highest for NDF. Intake of CP and NDF and apparent digestibility of DM were greatest when wet or dry corn gluten feed was fed. No differences in DMI, milk yield, and percentages of milk protein, lactose, or SNF were observed, but milk fat percentage was lowest when dry corn gluten feed was fed. Results indicate that corn gluten feed can replace 27% of dietary DM without altering milk yield, but new deliveries should be sampled regularly and amounts fed adjusted to compensate for varying nutrient concentrations.
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