Nutritional parameters and performance of crossbred heifers fed with millet and brs 716 biomass sorghum silages
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Universidade Federal de Minas Gerais
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This study addressed the different proportions of millet and sorghum silage biomass BRS 716 (BRS-716silage) in the diet of crossbred heifers ¾ Holstein x ¼ Zebu on their nutrient intake, and digestibility,microbial protein synthesis, nitrogen balance, ingestive behaviour, and growth performance. Fiveexperimental diets with 0, 25/75, 50/50, 75/25, and 100% of BRS-716 silage in compared to milletsilage were evaluated. The roughage: concentrate ratio in the total dry matter (DM) of the diets was75:25. The diets were evaluated in ten heifers with an initial body weight of 264.95 ± 19.4 kg (± SEM),following the experimental design in two 5 × 5 Latin squares, simultaneously. The total experimentalperiod lasted 105 d, divided into five periods of 21 days, including a 17-d initial adaptation, and fourfor data collection, and samples. The increase of BRS-716 silage in the diet of crossbred dairy heifersdid not change the dry matter intake (DMI), and indigestible neutral detergent fiber (iNDFI). For thepurine derivatives, and microbial synthesis, there was no significant effect (P > 0.05). The average dailygain was 0.795 kg/d. The millet silage, and BRS-716 silage in the diet of crossbred Holstein × Zebuheifers used exclusively or combined in different proportions.
Abstract
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Nutrição animal, Plantas forrageiras, Alimentação e rações, Bovino -- Uso eficiente de rações
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Nutrição animal, Plantas forrageiras, Alimentação e rações, Bovino -- Uso eficiente de rações
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https://www.tandfonline.com/doi/full/10.1080/09712119.2022.2155172#abstract