| Saccharomyces cerevisiae fermentation product in dairy cow diets containing dried distillers grains plus solubles. | |
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MedLine Citation:
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PMID: 20494175 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Sixteen multiparous Holstein cows (127+/-52 d in milk) were used in 4 replicated 4 x 4 Latin squares with 4-wk periods to evaluate interactions of dietary inclusion of a fermentation product of Saccharomyces cerevisiae (SC; XPC, Diamond V Mills, Cedar Rapids, IA) and dried distillers grains plus solubles (DDGS) on production of milk and milk components when fed diets containing approximately 30% dietary neutral detergent fiber with calculated forage neutral detergent fiber of 19.3% of diet dry matter (DM). Treatments were a 2 x 2 factorial arrangement with SC included at 0 or 14 g/d and DDGS at 0 or 20% of diet DM. Diets consisted of 27% corn silage, 18% alfalfa hay, and 55% concentrate mix on a DM basis. Diets not containing DDGS included additional corn, soybean meal, expeller soybean meal, soyhulls, and rumen inert fat to remain isocaloric and isonitrogenous with DDGS diets. Dry matter intake (26.0 kg/d) was similar for all diets. Milk production increased with the addition of SC to diets (43.6 vs. 42.0 kg/d for diets without SC) and decreased for cows fed diets containing DDGS (42.0 kg/d vs. 43.6 kg/d for diets not containing DDGS). Milk fat percentage (3.05 vs. 3.22% for DDGS and non-DDGS diets, respectively) and yield (1.27 vs. 1.41 kg/d) were decreased by the addition of DDGS but were not affected by the addition of SC. Concentrations of long-chain, polyunsaturated, trans-, and conjugated fatty acids in milk of cows fed DDGS were increased, but milk fatty acid profiles were not affected by SC. Milk true protein concentrations were similar for all diets; however, the addition of SC increased yield of true protein (1.32 vs. 1.27 kg/d). Concentrations of milk urea nitrogen increased when SC was included in the diet with DDGS. The DDGS decreased yields of energy-corrected milk (39.4 vs. 42.1 kg/d) and tended to decrease feed efficiency (1.53 vs. 1.61 kg of energy-corrected milk/kg of dry matter intake). Body weights and condition scores were not affected by treatments. Results suggest that diets containing minimal amounts of forage fiber and DDGS at 20% of diet DM will contribute to decreased milk production and milk fat depression. The addition of SC did improve milk and milk protein yields but did not prevent milk fat depression caused by DDGS. Production responses to SC were similar when cows were fed DDGS or non-DDGS diets. |
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Authors:
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A R Hippen; D J Schingoethe; K F Kalscheur; P L Linke; D R Rennich; M M Abdelqader; I Yoon |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of dairy science Volume: 93 ISSN: 1525-3198 ISO Abbreviation: J. Dairy Sci. Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-05-24 Completed Date: 2010-09-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2985126R Medline TA: J Dairy Sci Country: United States |
Other Details:
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Languages: eng Pagination: 2661-9 Citation Subset: IM |
Copyright Information:
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2010 American Dairy Science Association. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Dairy Science Department, South Dakota State University, Brookings 57007-0647, USA. arnold.hippen@sdstate.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed
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analysis,
microbiology* Animals Cattle / physiology Cereals / metabolism, microbiology Diet / veterinary Female Fermentation Milk / chemistry, secretion Milk Proteins / analysis Nutritive Value Saccharomyces cerevisiae / metabolism* Soybeans Zea mays |
| Chemical | |
Reg. No./Substance:
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0/Milk Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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