Pettersson D, Razdan A
Department of Food Science, Swedish University of Agricultural Sciences, Uppsala.
Br J Nutr. 1993 Jul;70(1):127-37. doi: 10.1079/bjn19930110.
Broiler chickens were fed on a control diet based on maize or on diets including conventionally-dried (standard pulp) or vacuum-dried (Fipec pulp) sugar-beet pulp at inclusion levels of 23, 46 and 92 g/kg. Diets were fed ad lib. except for half of the chickens fed on the control diet which were fed twice daily at a restricted level. Although not statistically significant, chickens given the 23 g sugar-beet pulp/kg diets generally consumed more feed, had increased body weights and converted feed more efficiently at both day 14 and 21 than those fed on the control diet or diets including 46 or 92 g sugar-beet pulp/kg. Ileal digestibilities of organic matter, crude fat and crude protein generally decreased with increasing levels of sugar-beet pulp in the diet. Birds fed on diets including sugar-beet pulp had reduced total serum cholesterol concentrations. There were only minor differences obtained in production responses, serum cholesterol concentrations, digestibilities and carcass composition between chickens fed on the two types of beet pulp, indicating that the different drying procedures had very little influence on the product. High triacylglycerol and total serum cholesterol concentrations obtained for the restricted level-fed chickens demonstrated a meal frequency factor.
将肉鸡分别饲喂以玉米为基础的对照日粮，或添加水平为23、46和92克/千克的常规干燥（标准浆）或真空干燥（Fipec浆）甜菜粕的日粮。日粮自由采食，但饲喂对照日粮的一半鸡只每天限量饲喂两次。尽管无统计学显著差异，但在第14天和第21天，日粮中添加23克/千克甜菜粕的鸡只通常比饲喂对照日粮或添加46或92克/千克甜菜粕日粮的鸡只采食更多饲料、体重增加且饲料转化率更高。日粮中有机物质、粗脂肪和粗蛋白的回肠消化率通常随着甜菜粕水平的增加而降低。饲喂含甜菜粕日粮的鸡只血清总胆固醇浓度降低。饲喂两种类型甜菜粕的鸡只在生产性能、血清胆固醇浓度、消化率和胴体组成方面仅有微小差异，表明不同干燥工艺对产品影响很小。限饲鸡只的高甘油三酯和血清总胆固醇浓度显示出采食频率因素。
