This page has only limited features, please log in for full access.
Societal pressure to reduce enteric methane emissions from cattle continues to increase. The present study evaluated the efficacy of the commercial essential oil feed additive Agolin® Ruminant on reducing enteric gas emissions and improving milk parameters in dairy cattle. Twenty mid-lactation Holstein cows, blocked by parity and days in milk, were randomly assigned to a top dress treatment with Agolin or an un-supplemented control for a 56-day trial. Cows were group housed and individually fed twice daily. Enteric gas emissions, including methane, carbon dioxide, ammonia, and nitrous oxide, were sampled every 14 days for a 12 h period via head chambers connected to a mobile air quality laboratory. Cows supplemented with Agolin versus the control had less methane intensity (g/period/kg energy-corrected milk (ECM); p = 0.025). Ammonia was the most affected gas, with lower ammonia production (mg/period; p = 0.028), and ammonia intensity (mg/period/kg ECM; p = 0.011) in Agolin-fed versus control-fed cows. All cow performance variables, including dry matter intake, ECM, milk fat, milk protein, or feed efficiency were similar between treatments. Further research should evaluate how Agolin impacts ruminal flora, focusing on mechanistic impacts to fermentation.
Angelica Carrazco; Carlyn Peterson; Yongjing Zhao; Yuee Pan; John McGlone; Edward DePeters; Frank Mitloehner. The Impact of Essential Oil Feed Supplementation on Enteric Gas Emissions and Production Parameters from Dairy Cattle. Sustainability 2020, 12, 10347 .
AMA StyleAngelica Carrazco, Carlyn Peterson, Yongjing Zhao, Yuee Pan, John McGlone, Edward DePeters, Frank Mitloehner. The Impact of Essential Oil Feed Supplementation on Enteric Gas Emissions and Production Parameters from Dairy Cattle. Sustainability. 2020; 12 (24):10347.
Chicago/Turabian StyleAngelica Carrazco; Carlyn Peterson; Yongjing Zhao; Yuee Pan; John McGlone; Edward DePeters; Frank Mitloehner. 2020. "The Impact of Essential Oil Feed Supplementation on Enteric Gas Emissions and Production Parameters from Dairy Cattle." Sustainability 12, no. 24: 10347.
Feed additives have received increasing attention as a viable means to reduce enteric emissions from ruminants, which contribute to total anthropogenic methane (CH4) emissions. The aim of this study was to investigate the efficacy of the commercial feed additive SOP STAR COW (SOP) to reduce enteric emissions from dairy cows and to assess potential impacts on milk production. Twenty cows were blocked by parity and days in milk and randomly assigned to one of two treatment groups (n = 10): supplemented with 8 g/day SOP STAR COW, and an unsupplemented control group. Enteric emissions were measured in individual head chambers over a 12-hour period, every 14 days for six weeks. SOP-treated cows over time showed a reduction in CH4 of 20.4% from day 14 to day 42 (P = 0.014), while protein % of the milk was increased (+4.9% from day 0 to day 14 (P = 0.036) and +6.5% from day 0 to day 42 (P = 0.002)). However, kg of milk protein remained similar within the SOP-treated cows over the trial period. The control and SOP-treated cows showed similar results for kg of milk fat and kg of milk protein produced per day. No differences in enteric emissions or milk parameters were detected between the control and SOP-treated cows on respective test days.
Elizabeth Ross; Carlyn Peterson; Angelica Carrazco; Samantha Werth; Yongjing Zhao; Yuee Pan; Edward DePeters; James Fadel; Marcello Chiodini; Lorenzo Poggianella; Frank Mitloehner. Effect of SOP “STAR COW” on Enteric Gaseous Emissions and Dairy Cattle Performance. Sustainability 2020, 12, 10250 .
AMA StyleElizabeth Ross, Carlyn Peterson, Angelica Carrazco, Samantha Werth, Yongjing Zhao, Yuee Pan, Edward DePeters, James Fadel, Marcello Chiodini, Lorenzo Poggianella, Frank Mitloehner. Effect of SOP “STAR COW” on Enteric Gaseous Emissions and Dairy Cattle Performance. Sustainability. 2020; 12 (24):10250.
Chicago/Turabian StyleElizabeth Ross; Carlyn Peterson; Angelica Carrazco; Samantha Werth; Yongjing Zhao; Yuee Pan; Edward DePeters; James Fadel; Marcello Chiodini; Lorenzo Poggianella; Frank Mitloehner. 2020. "Effect of SOP “STAR COW” on Enteric Gaseous Emissions and Dairy Cattle Performance." Sustainability 12, no. 24: 10250.