摘要
以体重(22.76±3.59)g的红白锦鲤为试验对象,采用正交设计方法研究盐藻、辣椒粉和温度对红白锦鲤生长和着色的影响。养殖周期为70 d,试验分别在第15、30、40、50、60、70 d采集鳞片、皮肤、头、鳍条进行色素吸光度测定。结果表明:投喂40 d后,影响红白锦鲤生长和各部位总类胡萝卜素含量强弱顺序为盐藻>辣椒粉>温度,即试验最佳条件为添加盐藻0.4 g/kg、辣椒粉20 g/kg或30 g/kg,温度27℃,投喂时间为40 d。50 d后,色素持续性较好。
This experiment was conducted to study the effect of Dunaliella Salina, Paprika and tempera- ture on the penformance and body colour of red-white Ornamental carp [initial mean body weight： （22.76±3.59） g]. The carps length and weight were measured in the feeding period before and the carps were fed 50 d. The samples of scale, skin, head and fin ray of the carps were selected for the subse- quent analysis of determining their total carotenoid contents and the absorbance values in the feed 15, 30, 40, 50, 60, 70 d. The results showed that the red-white ornamental carp was feed for 40 days with designed diets as above, the most important factor that influences the total carotenoids content in the body was Dunaliella salina, paprika followed by Dunaliella salina, temperature was the third factor. The optimum formular was： Dunaliella salina 0.4 g/kg, paprika 20g/kg or 30g/kg, temperature 27℃, feeding time was 40 d. After stoping feeding the diets with Dunaliella salina and paprika, the pigment duration is better.
出处
《饲料工业》
北大核心
2014年第18期24-29,共6页
Feed Industry
关键词
红白锦鲤
盐藻
辣椒粉
温度
red-white Ornamental carp（Cyprinus carpio L.）
Dunaliella salina
paprika
temperature
