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Dietary nitrate and presence of protozoa increase nitrate and nitrite reduction in the rumen of sheep
Villar, Maria Laura; Hegarty, Roger Stephen; Clay, Jonathon William; Smith, Katherine Anne; Godwin, Ian Robert; Nolan, John Vivian (Wiley, 2020-04)Nitrate (NO−3) supplementation is an effective methane (CH4) mitigation strategy for ruminants but may produce nitrite (NO−2) toxicity. It has been reported that rumen protozoa have greater ability for NO−3 and NO−2 reduction ... -
The effect of dietary nitrate and canola oil alone or in combination on fermentation, digesta kinetics and methane emissions from cattle
Villar, Maria Laura; Hegarty, Roger Stephen; Nolan, John V.; Godwin, Ian R.; McPhee, Malcolm J. (Elsevier, 2020-01)Nitrate and lipids have been recognized as effective dietary additives to reduce enteric methane (CH4) production. The objective of this experiment was to evaluate the effects of nitrate (NO3¯) and canola oil, alone or in ... -
Nitrate and nitrite absorption, recycling and retention in tissues of sheep
Villar, Maria Laura; Godwin, Ian Robert; Hegarty, Roger Stephen; Erler, Dirk V.; Farid, Haneih T.; Nolan, John Vivian (Elsevier, 2021-07)Dietary nitrate is of increasing interest both for the pharmacological effects of its metabolites as well as its capacity to inhibit methanogenesis in the gut. A sequence of three experiments was conducted to investigate ...