Effects of Copper Sulfate and Encapsulated Copper Addition on In Vitro Rumen Fermentation and Methane Production

Martyna Wilk (), Ewa Pecka-Kiełb, Jerzy Pastuszak, Muhammad Umair Asghar and Laura Mól
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Martyna Wilk: Department of Animal Nutrition and Feed Science, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland
Ewa Pecka-Kiełb: Department of Animal Physiology and Biostructure, Wrocław University of Environmental and Life Sciences, 51-631 Wrocław, Poland
Jerzy Pastuszak: BioDose Sp. z o. o. Sp. k., 60-453 Poznań, Poland
Muhammad Umair Asghar: Department of Animal Nutrition and Feed Science, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland
Laura Mól: BioDose Sp. z o. o. Sp. k., 60-453 Poznań, Poland

Agriculture, 2022, vol. 12, issue 11, 1-9

Abstract: Copper is a microelement crucial for the proper functioning of animals’ metabolic processes. The function of copper in rumen fermentation processes and methanogenesis is not well analyzed. The aim of the study was to evaluate the different types of copper supplement, their rumen decomposition and effect on in vitro ruminal fermentation as well as methanogenesis. Two different copper additives were used in the experiment: CS—copper sulfate (CuSO 4 × 5 H 2 O)—and EC—encapsulated copper (tribasic copper chloride and copper sulfate enclosed within a polysaccharide polymer coating). A total mixed ration without copper additive was used as a control (C). In vitro rumen fermentation was conducted, and fermentation profile, gas production and methanogenesis were evaluated. After 24 h of fermentation, the amount of copper in the rumen fluid was significantly higher in the CS group. EC was protected against rumen degradation to a greater extent. The type of used copper supplement affects rumen fermentation. However, the effect on methanogenesis is ambiguous. CS supplement increases rumen gas production but does not affect methanogenesis. The obtained results suggest that the EC supplement may reduce the risk of low-fat milk and may improve the economic indicators of milk production. An in vivo experiment is necessary to compare the obtained in vitro results with animal productivity.

Keywords: coated copper sulfate; rumen fermentation; methanogenesis; encapsulation (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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