Articles | Volume 69, issue 2
https://doi.org/10.5194/aab-69-275-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/aab-69-275-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Effects of capsaicin and monensin on ruminal fermentation, intake, nutrient digestibility, and ruminal dynamics of grazing bulls
Murilo R. Santiago
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
Mónica Madrigal-Valverde
Instituto Tecnológico de Costa Rica, Alajuela, 223-21001, Costa Rica
Ana Paula G. da Silva
Department of Animal Science, State University of Southeast Bahia, Itapetinga, 45.700-000, Brazil
Maria Leonor G. M. L. de Araújo
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
Gleidson Giordano P. de Carvalho
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
Douglas dos Santos Pina
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
Aureliano José V. Pires
Department of Animal Science, State University of Southeast Bahia, Itapetinga, 45.700-000, Brazil
Artur A. Menezes
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
Lara L. Dantas
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
Maria Luiza O. Chaves
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
Lara Maria S. Brant
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
José Esler de Freitas Júnior
Department of Animal Science, Federal University of Bahia, Salvador, 40.170-010, Brazil
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Victor Guimarães Oliveira Lima, Liliane Oliveira da Silva, José Esler de Freitas Jr., Henry Daniel Ruiz Alba, Vagner Maximino Leite, Willian Pereira Silva, Douglas dos Santos Pina, Laudí Cunha Leite, Carlindo Santos Rodrigues, Stefanie Alvarenga Santos, and Gleidson Giordano Pinto de Carvalho
Arch. Anim. Breed., 68, 77–87, https://doi.org/10.5194/aab-68-77-2025, https://doi.org/10.5194/aab-68-77-2025, 2025
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Soybean oil (SO) is used in animal feed due to the metabolic energy that it provides. Our study on metabolic and ingestive behavior, as well as rumen parameters, revealed that its inclusion in lamb diets reduced dry matter (DM), carbohydrate, and nitrogen intake. However, rumen parameters, such as total volatile fatty acids and methane production, were unaffected. We conclude that SO can be included at up to 30 g kg-1 DM as an energy source in diets for feedlot sheep containing 60 % concentrate.
Elizângela O. C. Santana, Robério R. Silva, Julliana I. Simionato, Geraldo Trindade Júnior, Túlio O. J. D'A. Lins, Gabriel D. da Costa, Bruna M. A. de C. Mesquita, Henry D. R. Alba, and Gleidson G. P. de Carvalho
Arch. Anim. Breed., 66, 51–60, https://doi.org/10.5194/aab-66-51-2023, https://doi.org/10.5194/aab-66-51-2023, 2023
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The fatty acid (FA) composition of cattle is correlated with cardiovascular diseases in humans. These FAs come from ruminal biohydrogenation; however, this process also produces FAs that can provide benefits to human health. Sex and diet can affect the FA profile of the meat. The meat FAs of cattle in feedlot systems are different due to diet differences. This study aimed to evaluate the effect of sex on the FA profile and meat quality of feedlot cattle fed a whole shelled corn diet.
Dallyson Yehudi Coura de Assis, Fabiano Almeida de Oliveira, Edson Mauro Santos, Ana Alice Lima de Gouvêa, Bruna Maria Aparecida de Carvalho, Camila de Oliveira Nascimento, Luís Gabriel Alves Cirne, Douglas dos Santos Pina, Aureliano José Vieira Pires, Henry Daniel Ruiz Alba, and Gleidson Giordano Pinto de Carvalho
Arch. Anim. Breed., 64, 395–403, https://doi.org/10.5194/aab-64-395-2021, https://doi.org/10.5194/aab-64-395-2021, 2021
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Goats are produced in extensive systems with low productive yields. Therefore, intensive systems improve productivity; however, in this system, diet is the most costly parameter. The cottonseed cake has the necessary nutritional characteristics to be able to substitute traditional ingredients (such as soybean meal) and to reduce the diet cost. Thus, it is necessary to determine the best level of inclusion of cottonseed cake in feedlot goats' diets to improve meat production and quality.
Pablo Teixeira Viana, Gleidson Giordano Pinto de Carvalho, Mirelle Costa Pignata Viana, Dallyson Yehudi Coura de Assis, Mauro Pereira de Figueiredo, Luís Gabriel Alves Cirne, Jennifer Souza Figueredo, Lorena Santos Sousa, Hermógenes Almeida de Santana Júnior, Douglas dos Santos Pina, and Henry Daniel Ruiz Alba
Arch. Anim. Breed., 64, 355–363, https://doi.org/10.5194/aab-64-355-2021, https://doi.org/10.5194/aab-64-355-2021, 2021
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The use of cull ewes has been an adopted practice to increase the profitability of the activity. The production of the ewes can be maximized with the adoption of feedlotting. However, feed is known to be the costliest factor in animal production. In this context, by-products such as cottonseed emerged as an alternative to replace the most commonly used ingredients without affecting animal productivity. Calcium lignosulfonate is a by-product that can be used to improve ruminal digestion.
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Short summary
Optimizing grazing animal feeding improves livestock efficiency and reduces environmental impacts. Monensin use raises concerns about resistant bacteria and public health. Replacing monensin with capsaicin showed no differences in intake, digestibility, blood parameters, or ruminal fermentation. This suggests that strategic supplementation can enhance productivity and sustainability in livestock farming.
Optimizing grazing animal feeding improves livestock efficiency and reduces environmental...