Document Detail


Effects of using thermally treated lupins instead of soybean meal and rapeseed meal in total mixed rations on in vitro microbial yield and performance of dairy cows.
MedLine Citation:
PMID:  19012615     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective was to study whether thermally treated lupins (TTL) can replace solvent-extracted soybean meal (SBM) and rapeseed meal (RSM) in dairy cow rations. Three total mixed rations (TMR) were used. They differed in the inclusion of the main protein feeds (TTL alone, TTL + RSM and RSM + SBM) but were equal in organic matter digestibility and metabolizable energy content. In vitro organic matter fermentation was not significantly different between the TMR. Efficiency of microbial crude protein (MCP) synthesis was significantly higher for TMR RSM + SBM than for TTL. In vitro gas production potential was similar for the three TMR. The maximal rate of gas production was achieved later in TMR TTL than in RSM + SBM. Feed intake of dairy cows was significantly lower when TMR TTL was fed than when TMR TTL + RSM or RSM + SBM were fed. Milk yield was significantly lower with the high inclusion rate of TTL in comparison with the other TMR. The contents of milk protein and milk fat were significantly lower when the two TTL containing TMR were fed in comparison with the RSM + SBM ration. Effects of TTL inclusion on MCP synthesis may affect the amino acid supply to the duodenum of cows to a greater extent than differences in the degradability of feed proteins.
Authors:
J Boguhn; H Kluth; M Bulang; T Engelhard; J Spilke; M Rodehutscord
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of animal physiology and animal nutrition     Volume:  92     ISSN:  1439-0396     ISO Abbreviation:  J Anim Physiol Anim Nutr (Berl)     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-17     Completed Date:  2009-02-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101126979     Medline TA:  J Anim Physiol Anim Nutr (Berl)     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  694-704     Citation Subset:  IM    
Affiliation:
Institut für Agrar- und Ernährungswissenschaften, Martin-Luther-Universität Halle-Wittenberg, Halle, Saale, Germany. te-halle@landw.uni-halle.de
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MeSH Terms
Descriptor/Qualifier:
Animal Feed
Animal Nutritional Physiological Phenomena / physiology
Animals
Bacterial Proteins / biosynthesis*
Brassica rapa
Cattle / growth & development*,  microbiology
Digestion / physiology
Female
Fermentation
Lactation / physiology*
Lupinus* / chemistry
Milk / chemistry,  secretion
Rumen / metabolism*,  microbiology*
Soybeans
Weight Gain*
Chemical
Reg. No./Substance:
0/Bacterial Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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