The effects of feeding ferric citrate on ruminal bacteria, methanogenic archaea and methane production in growing beef steers.

Autor:	Clemmons BA; Department of Animal Science, University of Tennessee, Knoxville, Tennessee 37996, USA., Schneider LG; Department of Animal Science, University of Tennessee, Knoxville, Tennessee 37996, USA., Melchior EA; Department of Animal Science, University of Tennessee, Knoxville, Tennessee 37996, USA.; Present address: Department of Animal and Range Science, New Mexico State, Las Cruces, NM 88003, USA., Lindholm-Perry AK; USDA, ARS, U.S. Meat Animal Research Center, Clay Center, Nebraska, 68933, USA., Hales KE; USDA, ARS, U.S. Meat Animal Research Center, Clay Center, Nebraska, 68933, USA.; Present address: Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX 79409, USA., Wells JE; USDA, ARS, U.S. Meat Animal Research Center, Clay Center, Nebraska, 68933, USA., Freetly HC; USDA, ARS, U.S. Meat Animal Research Center, Clay Center, Nebraska, 68933, USA., Hansen SL; Department of Animal Science, Iowa State University, Ames, Iowa 50011, USA., Drewnoski ME; Department of Animal Science, University of Nebraska, Lincoln, Nebraska 68583, USA., Hartman SJ; Department of Animal Science, Iowa State University, Ames, Iowa 50011, USA., Myer PR; Department of Animal Science, University of Tennessee, Knoxville, Tennessee 37996, USA.
Jazyk:	angličtina
Zdroj:	Access microbiology [Access Microbiol] 2020 Nov 23; Vol. 3 (1), pp. acmi000180. Date of Electronic Publication: 2020 Nov 23 (Print Publication: 2021).
DOI:	10.1099/acmi.0.000180
Abstrakt:	Methane produced by cattle is one of the contributors of anthropogenic greenhouse gas. Methods to lessen methane emissions from cattle have been met with varying success; thus establishing consistent methods for decreasing methane production are imperative. Ferric iron may possibly act to decrease methane by acting as an alternative electron acceptor. The objective of this study was to assess the effect of ferric citrate on the rumen bacterial and archaeal communities and its impact on methane production. In this study, eight steers were used in a repeated Latin square design with 0, 250, 500 or 750 mg Fe/kg DM of ferric iron (as ferric citrate) in four different periods. Each period consisted of a 16 day adaptation period and 5 day sampling period. During each sampling period, methane production was measured, and rumen content was collected for bacterial and archaeal community analyses. Normally distributed data were analysed using a mixed model ANOVA using the GLIMMIX procedure of SAS, and non-normally distributed data were analysed in the same manner following ranking. Ferric citrate did not have any effect on bacterial community composition, methanogenic archaea nor methane production ( P >0.05). Ferric citrate may not be a viable option to observe a ruminal response for decreases in enteric methane production. Competing Interests: The authors declare that there are no conflicts of interest.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu