ArticleBMC microbiology2026
Effects of triticale silage substitution for corn silage on growth performance, serum biomarkers, rumen fermentation, and rumen bacterial community of Pingliang Red Cattle.
Article in BMC microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIn the Loess Plateau region, corn silage production is constrained by water scarcity and rising costs. Triticale silage offers a promising alternative, yet its impact on the performance, metabolism, and rumen microbiota of Pingliang Red Cattle (PRC) remains poorly understood. This study therefore evaluated the effects of substituting corn silage with triticale silage on growth performance, pancreatic enzyme activity, serum biochemistry, rumen fermentation, and the rumen microbial community in PRC, and applied the TOPSIS method to determine the optimal substitution ratio.
methodsThirty clinically healthy 18-month-old PRC bulls with good appetite (initial body weight, 400 ± 50 kg) were selected and assigned to a completely randomized design. Animals were randomly allocated to five groups (n = 6 per group), including a control group fed 100% corn silage (T0) and four treatment groups in which triticale silage substituted corn silage at 30% (T1), 50% (T2), 70% (T3), and 100% (T4), respectively. Except for the type and proportion of silage, all other dietary components were kept constant. The experiment consisted of a 14-day adaptation period followed by a 90-day feeding trial.
resultsWith increasing substitution level, trypsin (TS) and chymotrypsin (CT) activities, and serum alkaline phosphatase (ALP) activity were significantly elevated (P < 0.01); urinary urea nitrogen (UUN) concentration tended to decrease; rumen ammonia nitrogen (NH
conclusionsThe TOPSIS analysis, integrating all evaluated parameters (growth performance, serum biomarkers, rumen fermentation, and microbial community), identified the 30% substitution ratio as optimal. At this level, production performance remained comparable to the T0, while protein digestion, metabolic balance, rumen fermentation, and microbial community structure were improved, achieving integrated benefits across digestive, metabolic, and microbial dimensions, thereby directly addressing the study's objective to determine the optimal substitution ratio.
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