| Effects of partially replacing barley silage or barley grain with dried distillers grains with solubles on rumen fermentation and milk production of lactating dairy cows. | |
| | |
MedLine Citation:
|
PMID: 20630239 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Dried distillers grains with solubles (DDGS) has been commonly used as a dietary protein source for lactating dairy cows. However, there is a paucity of data evaluating the use of DDGS as a partial replacement of forage or grain. The objective of this study was to determine the effects of partially replacing barley silage or barley grain with corn/wheat-based DDGS on dry matter intake (DMI), chewing activity, rumen fermentation, and milk production. Six ruminally cannulated lactating Holstein cows were used in a replicated 3 x 3 Latin square design with 21-d periods. Cows were fed the control diet (CON: 45% barley silage, 5% alfalfa hay, and 50% concentrate mix), a low forage (LF) diet or a low grain (LG) diet, in which barley silage or barley grain was replaced by DDGS at 20% of dietary dry matter, respectively. All diets were formulated to contain 18% crude protein and fed as total mixed rations. Compared with CON, cows fed the LF diet had greater DMI (26.0 vs. 22.4 kg/d), yields of milk (36.4 vs. 33.0 kg/d), milk protein (1.18 vs. 1.05 kg/d), and milk lactose (1.63 vs. 1.46 kg/d), but milk fat yield was not affected. The LF diet decreased chewing time compared with the CON diet (29.7 vs. 39.1 min/kg of DMI), but did not affect rumen pH and duration of rumen pH below 5.8. Compared with CON, feeding the LG diet tended to increase minimum and maximum rumen pH, but did not affect DMI, milk yield, and milk composition in this study. These results indicate that a partial replacement of barley silage with DDGS can improve the productivity of lactating dairy cows without negatively affecting rumen fermentation and milk fat production. Barley grain can also be partially replaced by DDGS in diets for lactating dairy cows without causing negative effects on productivity. |
| | |
Authors:
|
S Z Zhang; G B Penner; W Z Yang; M Oba |
Related Documents
:
|
2745819 - Supplementation of cows grazing tropical grass swards with concentrates varying in prot... 11230959 - Effects of dietary tallow level on performance of alpine does in early lactation. 1796879 - The effect of defined media, additive nutrients and metabolites on the development of t... 20412929 - Brown midrib corn silage and tifton 85 bermudagrass in rations for early-lactation cows. 17881699 - Milk conjugated linoleic acid response to fish oil and sunflower oil supplementation to... 6801099 - Dietary aroclor 1254 in the milk fat of lactating beef cattle. 11701729 - Altered neuroregulation of gh secretion in viscerally obese premenopausal women. 79919 - Protective effect of dietary fibre against chemically induced bowel tumours in rats. 22001499 - Various indications for a modified atkins diet in intractable childhood epilepsy. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of dairy science Volume: 93 ISSN: 1525-3198 ISO Abbreviation: J. Dairy Sci. Publication Date: 2010 Jul |
Date Detail:
|
Created Date: 2010-07-15 Completed Date: 2010-12-14 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 2985126R Medline TA: J Dairy Sci Country: United States |
Other Details:
|
Languages: eng Pagination: 3231-42 Citation Subset: IM |
Copyright Information:
|
Copyright (c) 2010 American Dairy Science Association. Published by Elsevier Inc. All rights reserved. |
Affiliation:
|
Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animal Feed* Animals Cattle / metabolism, physiology* Dairying Diet / veterinary* Female Fermentation / physiology* Hordeum / metabolism Lactation / physiology* Milk / chemistry, secretion* Rumen / metabolism* Silage |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Quantifying ruminal nitrogen metabolism using the omasal sampling technique in cattle--a meta-analys...
Next Document: Effects of feeding alfalfa hay on chewing, rumen pH, and milk fat concentration of dairy cows fed wh...