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Effects of humic/fulvic acid on rume...

McMurphy, Casey Paul.

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Effects of humic/fulvic acid on rumen fermentation in Holstein steers.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Effects of humic/fulvic acid on rumen fermentation in Holstein steers./
作者:	McMurphy, Casey Paul.
面頁冊數:	71 p.
附註:	Adviser: Glenn C. Duff.
Contained By:	Masters Abstracts International45-06.
標題:	Agriculture, Animal Culture and Nutrition. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1444607
ISBN:	9780549046165

Effects of humic/fulvic acid on rumen fermentation in Holstein steers.
McMurphy, Casey Paul.

Effects of humic/fulvic acid on rumen fermentation in Holstein steers. - 71 p.

Adviser: Glenn C. Duff.

Thesis (M.S.)--The University of Arizona, 2007.

Six ruminally fistulated steers (average BW 317 kg) were used in a 5 X 5 + 1 Latin Square design to determine effects of humic/fulvic acid (HFA) on serum urea nitrogen (SUN), rumen pH, rumen ammonia nitrogen (RAN), and rumen VFA production in Holstein steers. Treatments included a control (0%), 0.5, 1.0 or 1.5% HFA, and a diet containing monensin (33 mg/kg). A quadratic feed intake response was observed; with intake lowest for 0.5 and 1.0 and highest for 1.5 relative to control steers. No treatment x time interaction was observed for RAN, pH, SUN, total VFA or individual VFA. No treatment differences were observed for total VFA concentrations (mM), or for molar proportion of acetate, propionate, butyrate or valerate. A quadratic response was observed for butyrate and isovalerate. However, HFA does not alter rumen fermentation in the same mode of action as monensin.

ISBN: 9780549046165Subjects--Topical Terms:

1017857
Agriculture, Animal Culture and Nutrition.

Effects of humic/fulvic acid on rumen fermentation in Holstein steers.
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