Effects of differing levels of glycerol on rumen fermentation and bacteria

The effects of substituting corn with glycerol as a feed alternative were investigated using continuous fermenters. Four fermenters were used in a 4 × 4 Latin square design with four 10 days consecutive periods. Treatments diets contained 0 (T1), 36 (T2), 72 (T3) and 108 (T4) g glycerol/kg dry matte...

Full description

Saved in:
Bibliographic Details
Published in:Animal feed science and technology 2010-12, Vol.162 (3), p.99-105
Main Authors: Abo El-Nor, S., AbuGhazaleh, A.A., Potu, R.B., Hastings, D., Khattab, M.S.A.
Format: Article
Language:English
Subjects:
Acetic acid
acid detergent fiber
adverse effects
alfalfa
ammonia nitrogen
Biological and medical sciences
Butyrivibrio fibrisolvens
Corn
effluents
Feed and pet food industries
feed composition
feed concentrates
feed rations
feed supplements
fermenters
Food industries
Fundamental and applied biological sciences. Psychology
Glycerol
in vitro studies
microbial genetics
neutral detergent fiber
nutrient content
Rumen bacteria
rumen fermentation
species diversity
temporal variation
Volatile fatty acids
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of substituting corn with glycerol as a feed alternative were investigated using continuous fermenters. Four fermenters were used in a 4 × 4 Latin square design with four 10 days consecutive periods. Treatments diets contained 0 (T1), 36 (T2), 72 (T3) and 108 (T4) g glycerol/kg dry matter (DM). Diets consisted of 600 g/kg alfalfa hay and 400 g/kg concentrate (DM basis) and glycerol replaced the corn in the concentrate. Effluents were collected from each fermenter during the last 3 days of each period and analyzed for nutrients composition. On day 10 of each period, additional samples were collected from each fermenter at 3 h after the morning feeding and analyzed for volatile fatty acids (VFA), ammonia-nitrogen (NH 3-N), and microbial DNA concentration. Results showed that neutral detergent fiber (aNDFom) digestibility decreased (P
ISSN:0377-8401
1873-2216
DOI:10.1016/j.anifeedsci.2010.09.012