Influence of flake fragmentation on the feeding value of steam-flaked corn in finishing diets for feedlot cattle

Montaño, M. F.; González, Víctor; Manriquez, O.; May, Dixie; Melendrez, J.; Plascencia, A.; Salinas-Chavira, J.; Zinn, R. A.

doi:10.1016/j.anifeedsci.2014.01.011

Animal Feed Science and Technology

2014

DOI: 10.1016/j.anifeedsci.2014.01.011

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Influence of flake fragmentation on the feeding value of steam-flaked corn in finishing diets for feedlot cattle

M. F. Montaño¹,

Víctor González²,

O. Manriquez³

et al.

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Diets of differentially processed wheat alter ruminal fermentation parameters and microbial populations in beef cattle1

Jiang

Yang

et al. 2015

Journal of Animal Science

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The influences of differently processed wheat products on rumen fermentation, microbial populations, and serum biochemistry profiles in beef cattle were studied. Four ruminally cannulated Limousin × Luxi beef cattle (400 ± 10 kg) were used in the experiment with a 4 × 4 Latin square design. The experimental diets contained (on a DM basis) 60% corn silage as a forage source and 40% concentrate with 4 differently processed wheat products (extruded, pulverized, crushed, and rolled wheat). Concentrations of ruminal NH-N and microbial protein (MCP) in cattle fed crushed and rolled wheat were greater ( < 0.05) than the corresponding values in cattle fed pulverized and extruded wheat. Ruminal concentrations of total VFA and acetate and the ratio of acetate to propionate decreased ( < 0.05) with increased geometric mean particle size (geometric mean diameter) of processed wheat, except for extruded wheat; cattle fed extruded wheat had the lowest concentrations of total VFA and acetate among all treatments. The relative abundance of , , ciliated protozoa, and was lower in cattle fed the pulverized wheat diet than in the other 3 diets ( < 0.05), whereas the relative abundance of was decreased in cattle fed extruded wheat compared with cattle fed crushed and rolled wheat ( < 0.05). No treatment effect was obtained for serum enzyme activity and protein concentration ( > 0.05). Our findings suggest that the method of wheat processing could have a significant effect on ruminal fermentation parameters and microbial populations in beef cattle and that crushed and rolled processing is better in terms of ruminal NH-N and MCP content, acetate-to-propionate ratio, and relative abundance of rumen microorganisms.

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Diets of differentially processed wheat alter ruminal fermentation parameters and microbial populations in beef cattle1

Jiang

Yang

et al. 2015

Journal of Animal Science

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show abstract

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Influence of flake fragmentation on the feeding value of steam-flaked corn in finishing diets for feedlot cattle

Cited by 1 publication

References 17 publications

Diets of differentially processed wheat alter ruminal fermentation parameters and microbial populations in beef cattle1

Diets of differentially processed wheat alter ruminal fermentation parameters and microbial populations in beef cattle1

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