Desempenho de coelhos desmamados em diferentes idades, alimentados com diferentes n赤veis de amido, oriundos de matrizes submetidas a diferentes n赤veis de energia = Performance of growing rabbits weaned at different ages, fed with two starch levels, from rabbit does subjected to different levels of energy on diet

作者：Waldirene Rossi da Silva; Claudio Scapinello; Antonio Claudio Furlan; Ivan Moreira

来源：Acta Scientiarum - Animal Sciences, 2009.

• consumo de ra o
• convers o alimentar
• custo de produ o
• ganho de peso
• avalia o quantitativa de carca a
• feeding intake
• feed:gain ratio
• feeding cost
• weigh gain
• carcass quantitative evaluation

Foram avaliadas 240 ninhadas de coelhos, da desmama ao abate, em tr那s ordens de parto (OP), oriundas de matrizes submetidas a diferentes n赤veis de energia na dieta e idade de desmama dos l芍paros. Os tratamentos, em esquema fatorial 2 x 2 x 2 x 3 (2.600 e 2.800 kcal EDkg-1 at谷 desmama versus desmama aos 28 e 35 dias versus dietas com alto ou baixo n赤vel de amido (21 ou 16%) da desmama ao abate versus tr那s ordens de parto), com dez repeti es (ninhada). O n赤vel de2.600 kcal kg-1 de ra o at谷 a desmama elevou o ganho de peso, melhorou a convers o alimentar e reduziu o custo da ra o no per赤odo da desmama aos 50 dias. A desmama aos 28 dias reduziu o consumo m谷dio di芍rio de ra o da desmama ao abate. O n赤vel mais elevado de amido nas dietas p車s-desmama reduziu o consumo m谷dio at谷 50 dias de idade e reduziu os custos. A sequ那ncia da ordem de parto elevou o peso vivo 角 desmama, aos 50 e aos 70 dias, o ganho de peso di芍rio, o consumode ra o e o peso das v赤sceras comest赤veis. Os dados sugerem o uso de ra o com 2.600 kcal ED kg-1 at谷 o desmame, desmame aos 28 dias e 21% de amido na ra o dos coelhos da desmama ao abate. 240 litters of rabbits were used, from weaning to slaughter, in three parturition sequences, descended from rabbit does which were feed with different levels of digestible energy on diet and weaning age ofyoung rabbits. The litters were allocated in a 2 x 2 x 2 x 3 factorial design (diets with 2600 and 2800 kcal DE kg-1 until weaning versus weaning at 28 and 35 days old versus diets with 21 or 16% of starch from weaning to slaughter versus three parturition sequences), with 10 replications (litters). The 2600 kcal DE kg-1 level improved weight gain, feed:gain ratio and reduced the diet cost from weaning to 50 days of age. Weaning at 28 days reduced the average feeding intake from weaning to slaughter. The higher level of starch reduced average feeding intake until 50 days of age and also reduced the cost. The parturition sequence increased the live weight at 70 days, daily weight gain and feeding intake during the experiment period, as well as heart, liver and kidney weight. The results suggest the use of feed with 2600 kcal DE kg-1, weaning at 28 days old and 21% of starch on diet for rabbits from weaning to slaughter.