Impact of source of sulfur on ruminal hydrogen sulfide and logic for the ruminal available sulfur for reduction concept

Jhones Sarturi, Galen Erickson, Terry Klopfenstein, Kelsey Rolfe, Crystol Buckner, Mathew Luebbe

Research output: Contribution to journalArticlepeer-review

Abstract

Effects of organic and inorganic sources of S on intake, intake pattern, ruminal pH, VFA profile, and ruminal H2S gas concentration ([H2S]) were evaluated, which lead to development of a procedure to measure ruminal S availability for reduction [ruminal available S (RAS)] as well as compare with an estimated number [adjusted ruminal protein S (ARPS)]. Ruminally cannulated crossbred beef steers (n = 5; BW = 548 ± 46 kg) were assigned to 1 of 5 diets in a 5×5 Latin square design and fed ad libitum in five 21-d periods. Steers were fed a dry-rolled corn diet (CON), inorganic S source (ammonium sulfate; INORG), organic S source (corn gluten meal) fed at 9.8 (ORG-L) or 23% of diet DM (ORG-H), or wet distillers grains with solubles (WDGS) fed at 50% of diet DM. For the laboratory procedure, individual ingredients were incubated with ruminal fluid from heifers fed 60% corn-based diets (n = 2) and McDougall’s buffer. Bottles were cooled in ice, centrifuged, and decanted, and the precipitate w
Original languageEnglish
Pages (from-to)3352–3359
JournalJournal of Animal Science
DOIs
StatePublished - May 8 2013

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