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Fattening Rambouillet lambs with corn stubble or alfalfa, slow intake urea supplementation or balanced concentrate
One hundred and sixty Rambouillet lambs (15.925±0.350 kg/BW) were studied for 90 days with two treatments evaluating in situ DM disappearance, voluntary DM and OM intake, rumen degradation, rate of passage, NH 3 and VFA concentrations, apparent digestibility, ruminal pH, total fermentable carbohydra...
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Published in: | Small ruminant research 2004-06, Vol.53 (1), p.89-98 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | One hundred and sixty Rambouillet lambs (15.925±0.350
kg/BW) were studied for 90 days with two treatments evaluating in situ DM disappearance, voluntary DM and OM intake, rumen degradation, rate of passage, NH
3 and VFA concentrations, apparent digestibility, ruminal pH, total fermentable carbohydrates, and weight gains. The first diet (80 lambs plus two cannulated sheep) offered 1000
g corn stubble (CS) per day, 200
g alfalfa hay (AH) per day, and 200
g of a slow-intake urea supplement (SIUS) per day, consisting of 12.0% molasses, 5.0% urea, 4.0% fish meal, 3.0% salt, 2.5% orthophosphate, 3.2% limestone, 12.0% cottonseed meal, 12.0% rice polishing, 25.0% corn, 8.0% poultry litter, 1.5% mineral salts, 2.0% ammonium sulphate, 1.8% cement kiln dust, and 8.0% animal lard. The second group (80 lambs plus two cannulated sheep) was fed 800
g AH per day and 600
g of a 18% CP balanced concentrate (BC) per day. VDMI, OMI, DM digestibility and rumen NH
3 concentrations were highest (
P |
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ISSN: | 0921-4488 1879-0941 |
DOI: | 10.1016/j.smallrumres.2003.08.008 |