菠萝皮渣的营养成分分析及利用的研究.docxVIP

菠萝皮渣的营养成分分析及利用的研究吕庆芳，王润莲（广东海洋大学农学院，广东湛江 524088）摘 要： 探讨了菠萝加工副产物菠萝皮渣的营养价值及饲用效果。 采用国家标准方法测定了菠萝加工副产物菠萝皮渣的常规营养成分，并将其以不同梯度配入贵妃鸡日粮中，观测对鸡生长、采食量及胴体性能的影响。 结果表明，菠 萝皮渣饲料中无氮浸出物和纤维含量较高，分别为 45.37%、27.70%；钙含量中等偏上为 0.54%；蛋白、脂肪和磷含量 偏低，分别为 7.60%、2.40%、0.06%；并含多种矿物元素。 贵妃鸡日粮中使用 2.5%的菠萝皮渣不影响生长和胴体性能， 但添加量增加至 5%时，贵妃鸡的采食量稍有下降、生长速度变慢，饲料利用效率有所降低，腿肌率、腹脂率和皮脂厚 有降低的趋势。 可见，菠萝皮渣含有丰富的营养物质，可作为能量饲料应用到贵妃鸡日粮中，其添加量以 2.5%左右为 宜。关键词： 菠萝皮渣； 营养成分； 饲用效果； 贵妃鸡中图分类号：S668．3文献标识码：A文章编号：1009－9980（2011）03－443－05Nutrient analyses and preliminary application of pineapple by-productsL譈 Qing-fang，WANG Run-lian（College of Agriculture， Guangdong Ocean University， Zhanjiang， Guangdong 524088 China）Abstract: This experiment was conducted to evaluate the nutritional value and feeding effects of pineapple by-products in Princess chickens. The composition of pineapple by-products was determined by proximate analysis using the national standard methods， and changes in growth performance， feed intake and the carcass characteristics were investigated by supplementation of pineapple by-products at a level of 2.5%or 5% in diet of Princess chickens. Results showed that pineapple by-products contained non-protein ni-trogen， crude fiber， crude protein， ether extract， calcium and phosphorus at the level of 45.37% ，27.70% ， 7.60% ， 2.40% ， 0.54% and 0.06% respectively. Pineapple by-products supplementation at the level of 2.5% in diet of Princess chickens showed no influence on growth and carcass characteristics， while 5% supplementation significantly decreased the feed intake， growth and feed conversion rate， and tended to decrease the leg muscle percentage， abdominal fat percentage and subcutaneous fat of Princess chickens. In conclusion， the pineapple by -product could be applied in diet of Princess chickens as a feedstuff due to a plenty of nutrients， and the optimal supplemental level seemed to be about 2.5% for growth and carcass characteristics of Princess chickens.Key words: Pineapple by-products； Nutritional value； Fee