Evaluation of propylene glycol and glycerol infusions as treatments for ketosis in dairy cows
نویسندگان
چکیده
منابع مشابه
Ruminal fermentation of propylene glycol and glycerol.
Bovine rumen fluid was fermented anaerobically with 25 mM R-propylene glycol, S-propylene glycol, or glycerol added. After 24 h, all of the propylene glycol enantiomers and approximately 80% of the glycerol were metabolized. Acetate, propionate, butyrate, valerate, and caproate concentrations, in decreasing order, all increased with incubation time. Addition of any of the three substrates somew...
متن کاملDetection of Subclinical Ketosis in Dairy Cows
Received: Revised: Accepted: July 16, 2011 October 02, 2011 October 24, 2011
متن کاملGlycerol Supplementation in Dairy Cows and Calves
The production of biodiesel from rapeseed oil methyl ester leaves glycerol (synonym: glycerine, 1,2,3-propanetriol) as a valuable by-product and a promising feed supplement for farm animals. This thesis provides information about the supplemental feeding with glycerol to dairy cows in early lactation and to young calves, and describes the fate of glycerol entering the rumen and the impact of gl...
متن کاملEffect of propylene glycol on fertility of postpartum dairy cows experiencing seasonal heat stress
The objective of this study was to evaluate effects of a daily oral drench of Propylene Glycol (PG) on fertility in dairy cows experiencing seasonal heat stress. In treatment group, cows (n=9) were treated with drenching 250 ml propylene glycol once daily from 3 to 15 days post-partum following the morning milking. Another group of cows (n=9) was selected as untreated control. The serum beta-hy...
متن کاملA new route for the synthesis of propylene oxide from bio-glycerol derivated propylene glycol.
The synthesis of propylene oxide from propylene glycol, a derivative of bio-glycerol, was firstly realized in the presence of alkali-loaded silica catalysts to achieve 44% conversion and 70% selectivity.
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2015
ISSN: 0022-0302
DOI: 10.3168/jds.2015-9476