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Ionophores fed to cattle alter the rumen microbiome causing a metabolic shift that underlies improved animal performance. While a majority of the research into mechanisms of action were performed in cattle fed a high-concentrate diet (Thompson et al., 2016), limited information exists detailing their impact in cattle maintained on a high-forage diet. Improved animal performance is especially important in tropical and subtropical regions that are more reliant on forage-based production systems (Cooke et al., 2020). A recent study compared the effects of 3 different feed additives fed to bos indicus bulls receiving a haylage diet (Limede et al., 2021). Results provide new insight into the interplay between ionophore, breed and diet on animal performance.

The effects of feed additives in cattle fed forage-based diets

Credit: Journal of Animal Science, Volume 99, Issue 4, April 2021, skab055, doi.org/10.1093/jas/skab055

Digital Credit:

Publisher: American Society of Animal Science

Rights: Name must appear as a credit whenever the image is used - Journal of Animal Science, Volume 99, Issue 4, April 2021, skab055, https://doi.org/10.1093/jas/skab055

Description: Ionophores fed to cattle alter the rumen microbiome causing a metabolic shift that underlies improved animal performance. While a majority of the research into mechanisms of action were performed in cattle fed a high-concentrate diet (Thompson et al., 2016), limited information exists detailing their impact in cattle maintained on a high-forage diet. Improved animal performance is especially important in tropical and subtropical regions that are more reliant on forage-based production systems (Cooke et al., 2020). A recent study compared the effects of 3 different feed additives fed to bos indicus bulls receiving a haylage diet (Limede et al., 2021). Results provide new insight into the interplay between ionophore, breed and diet on animal performance.

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