01431naa a2200217 a 450000100080000000500110000800800410001910000190006024501190007926000090019852007860020765000210099365000250101465000100103965000260104965000130107565000220108865000100111070000170112077300760113720545462016-10-20       1968    bl uuuu     u00u1 u    #d1 aBRISSON, G. J.  aComparison between rations of different proteinbenergy ratio for lambs weaned at three or at fifteen days of age.  c1968  aSixty-four lambs, 32 weaned at 3 to 5 days of age and 32 at 15 days of age, were fed milk substitutes up to a liveweight of 25 kg. Half of each group received a ration with a protein:calorie ratio of 38.9 (ration A) and the other half a ration with a ratio of 34.5 (ration B). The gross energy of ration A was 4.7 kcal/g and that of ration B, 5.3 kcal/g. Average daily gain to 8 weeks of age was 238 and 253 g for the lambs fed rations A and B, respectively. Feed consumption was slightly higher for the lambs fed ration A. Dressing-out percentage was 52 for the lambs fed ration A and 56 for those fed ration B. The lambs weaned at 15 days had higher dressing-out percentages (P &lt 0.05). The percentage of carcasses which graded A was 33% for ration B and only 15% for ration A.  aAnimal nutrition  aProtein concentrates  aSheep  aConcentrado proteíco  aCordeiro  aNutrição animal  aOvino1 aLEMAY, J. P.  tCanadian Journal of Animal Sciencegv. 48, n. 3, p. 307-313, Dec. 1968.