| Performance, carcass characteristics and chemical composition of beef affected by lupine seed, rapeseed meal and soybean meal. | |
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MedLine Citation:
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PMID: 19663972 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To test the effects of different protein sources and levels on performance, carcass characteristics and beef chemical composition, concentrates with three protein sources [Lupine seed (L), Rapeseed meal (R) and Soybean meal (S)] and two protein levels ['normal protein' (NP) or 'high protein' (HP)] were fed to 36 Simmental calves. Calves initially weighed 276 +/- 3.9 kg and averaged 6 months of age and were randomly allocated to the six treatments. Maize silage was offered ad libitum and supplemented with increasing amounts of concentrates (wheat, maize grain, protein sources, vitamin-mineral mix). Normal protein and HP diets were formulated to contain 12.4% and 14.0% crude protein (CP) dry matter (DM) respectively. At the end of the fattening period of 278 days, the final live weight averaged 683 +/- 14.7 kg. Neither level of protein nor its interaction with protein sources had any effects on most of the traits studied. Feeding the R diet significantly increased final weight, average daily gain (ADG), DM intake and CP intake in relation to the L diet; no differences were observed between the L and S diets for these measures. No differences were observed between the R and S groups in final weight or ADG, but the calves fed the R diet consumed more DM and CP than the calves fed the S diet. Bulls fed R diet had higher carcass weight and dressing percentage than the L groups, and no significant differences were detected between the S and L groups. Chemical composition of the Musculus longissimus dorsi was not significantly affected by source of protein. Also, the major saturated fatty acid (SFA) (C16:0 and C18:0) did not significantly differ among the three treatments. Samples from R group had significantly higher proportions of C16:1 t9, C18:1 c11, C18:2 c9 t11, C18:3 c9, 12, 15 and SigmaC18:1 t fatty acids in relation to L and S groups. Although polyunsaturated fatty acid/SFA ratio was similar for the three dietary groups, n-6/n-3 ratio and Sigman-3 fatty acids content were significantly greater for bulls fed R diet in relation to those fed L and S diets. |
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Authors:
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A S Sami; M Schuster; F J Schwarz |
Publication Detail:
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Type: Journal Article Date: 2009-08-03 |
Journal Detail:
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Title: Journal of animal physiology and animal nutrition Volume: 94 ISSN: 1439-0396 ISO Abbreviation: J Anim Physiol Anim Nutr (Berl) Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-07-23 Completed Date: 2010-11-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101126979 Medline TA: J Anim Physiol Anim Nutr (Berl) Country: Germany |
Other Details:
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Languages: eng Pagination: 465-73 Citation Subset: IM |
Affiliation:
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Department of Animal Production, Faculty of Agriculture, University of Cairo, Giza, Egypt. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed* Animal Nutritional Physiological Phenomena / physiology Animals Animals, Newborn / growth & development Brassica rapa Cattle / growth & development*, metabolism* Dietary Proteins / administration & dosage*, metabolism Dose-Response Relationship, Drug Lupinus Meat / analysis, standards Random Allocation Soybeans Weight Gain* |
| Chemical | |
Reg. No./Substance:
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0/Dietary Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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