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Ruminal responses, digestibility, and blood parameters of beef cattle fed diets with different oilseeds

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Abstract

It aimed to evaluate the effects of different whole oilseeds in lipid-rich diets on nutrient intake, apparent digestibility, ingestive behavior, and ruminal and blood parameters of steers. A control diet (without oilseed) and four diets containing whole oilseeds (cotton, canola, sunflower, and soybean) were tested. All diets used the whole-plant corn silage at 400 g/kg as roughage. Five diets, being a control diet (without oilseed) and four diets containing whole oilseeds (cotton, canola, sunflower, and soybean), were tested. All diets used the whole-plant corn silage at 400 g/kg as roughage. Five rumen fistulated crossbreed steers, in a 5 × 5 Latin square design were distributed using five periods of 21 days. The steers fed cottonseed and canola diets had lower dry matter intakes (6.6 kg/day). Steers showed higher averages of time in rumination for treatments with sunflower, soybean, and cottonseed (406, 362, and 361 min/day, respectively). There was no treatment effect for the ruminal pH and ammonia (NH3) variables. There was an effect of the treatment on the volatile fatty acid concentrations. The animals that received soybean showed a higher plasma urea concentration (50.7 mg/dL). Animals fed the control diet showed lower serum cholesterol levels (111.8 mg/dL) than those fed diets containing whole cottonseed, canola, sunflower, and soybean (152.7, 137.1, 146.9, and 138.2 mg/dL, respectively). We recommended using whole soybean or sunflower seeds to formulate lipid-rich diets with 70 g/kg of ether extract for crossbreed steers in the feedlot.

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Acknowledgements

The authors thank to the Federal University of Mato Grosso do Sul, Dom Bosco Catholic University, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul (FUNDECT), and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) (Financing Code 001).

Funding

This work was supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Financing Code 001); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); and Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul (FUNDECT).

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Contributions

Niwa, M.V.G.; Ítavo, L.C.V.; Ítavo, C.C.B.F.; Mateus, R.G.; Gomes, R.C.; and Santos, G.T. had a substantial contribution in the concept and study design. Niwa, M.V.G.; Melo, H.S.A.; Moraes, G.J.; Monteiro, G.O.A.; Modesto, L.N.; and Gurgel, A.L.C. had a substantial contribution in the data collection, data analysis, interpretation, and adding intellectual content. Niwa, M.V.G.; Ítavo, L.C.V.; and Gurgel, A.L.C. contribution in the manuscript preparation, in the critical revision, and in adding intellectual content. Niwa, M.V.G.; Ítavo, L.C.V.; Ítavo, C.C.B.F.; Mateus, R.G.; Gurgel, A.L.C.; Gomes, R.C.; and Santos, G.T. writing—review and editing. All the authors contribute equally to editing and finalizing the manuscript.

Corresponding author

Correspondence to Luís Carlos Vinhas Ítavo.

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Ethical approval

This study was conducted in strict accordance with the recommendations of the Guide for the National Council for the Control of Animal Experiments. The experimental protocol of research was approved by the Ethics Committee on Animal Use of Federal University of Mato Grosso do Sul (Protocol No. 654/2015).

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The authors declare no competing interests.

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Niwa, M.V.G., Ítavo, L.C.V., Ítavo, C.C.B.F. et al. Ruminal responses, digestibility, and blood parameters of beef cattle fed diets with different oilseeds. Trop Anim Health Prod 55, 254 (2023). https://doi.org/10.1007/s11250-023-03682-5

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