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| 饲料添加南极虾粉及植物性原料取代鱼粉对海鲡成长之影响
Effect of feed supplement with krill meal and vegetative ingredients replacing fish meal on the growth performance of Cobia, Rachycentron canadum.
| | 黎俊廷
Li, Chun-ting
| | 陈俊宏
台湾大学:动物学研究研究所
| | 海鲡
南极虾
羽扇豆
玉米蛋白
菜籽粕
cobia
krill
lupin
corn protein
rapeseed meal
| | 2006
| | 2007-11-27T04:50:29Z 2007-11-27T04:50:29Z
| | 海鲡:拥有许多特点让海鲡成为一个理想的集约养殖品种,全世界目前在中国、台湾、越南…等地,有日益升高的养殖趋势。
鱼粉为水产饲料原料的一种,具有许多优点而成为鱼饲料主要的蛋白质来源,对于鱼类成长非常重要。由于鱼粉产量无法增产、需求量增加,以致价格逐年攀升,故寻找方法来降低鱼饲料中鱼粉之比例为目前研究之趋势。
先前的实验显示羽扇豆粉(Lupin meal)、菜籽粕(Rapeseed meal)及玉米蛋白(Corn protein)各自分别取代鱼粉在海鲡饲料中的最适量为20%、10%、15%,取代后海鲡成长均与对照组无差异,在两种原料搭配下,海鲡的成长依然有对照组的74%,然而在三个植物性原料一起搭配下,实验组的成长只可达到对照组的63%。
为了寻求更低鱼粉的配方,本实验利用南极虾粉(Krill meal)、羽扇豆粉(Lupin meal)、菜籽粕(Rapeseed meal)及玉米蛋白(Corn protein)取代饲料中之鱼粉探讨对海鲡成长之影响。
实验一:对照组以60 %鱼粉为饲料蛋白质来源,实验组则添加南极粉及植物性原料,分为K125、K100、K075、K050四组,南极虾粉含量为12.5%、10%、7.5%
、5%,鱼粉含量由60%降至14.5%,测试其对于海鲡之成长效果。经42天饲养,海鲡成长显示实验组K100与K075的增重表现最佳,表示在低鱼粉配方的饲料中,添加7.5%-10%的南极虾粉为最适量。
实验二:对照组60 %鱼粉为饲料蛋白质来源,实验组则添加南极虾粉及植物性原料,变动配方中菜籽粕与鱼粉之多寡,分为FM60、F25R2、F20R5与F17R10。
经42天饲养,实验组中F25R2组在增重率及饲料效率最佳,F17R10最差。
Cobia, Rachycentron canadum, posses many features that make this species has ideal candidate for intensive aquaculture. Successful commercial production of cobia in China, Taiwan, Vietnam...et al., have very height interest for the culture of this species on global basis.
Fish meal have many advantages, especially be demanded in aquaculture growth performance, let make fish meal to become a major protein source in aquaculture feeds. Due to steady yield and short of demand, the price raises recently years. The research direction is tendency towards reducing the percentage of fish meal in aquaculture feeds.
Previous study show lupin meal, rapeseed meal, corn protein, respective formulating in 20%, 10% and 15% of cobia feeds, can decrease usage of fish meal and had no difference in growth performance. In the combination formula of two vegetative ingredients, cobia still had 73% growth performance of control diets. However in the combination formula of three vegetative ingredients, has only 63% growth performance of control diets.
For seeking lower fish meal formula, this study was focus the growth performance of cobia in using krill meal combine with lupin meal, rapeseed meal and corn protein for reducing the ratio of fish meal in cobia feed.
Experiment I : Using 60% fish meal formula as main protein source as control diet, experiment diets named K125, K100, K075, K050 because them contain krill meal 12.5%, 10%, 7.5%, 5% respectively. Experiment diets reduce fish meal from 60% to 14.5% to test their growth performance of cobia. After 42 days feeding, K100 and K075 have best weight gain ratio, means low-fish meal formula diet which contain 7.5%-10% krill meal are optimum.
Experiment II : Using 60% fish meal formula as main protein source as control diet, all experiment diets contain 10% krill meal and arrange percentage of rapeseed meal and fish meal, each named F25R2, F20R5 and F17R10. After 42 days feeding, F25R2 had best weight gain and feed efficiency, but F17R10 had worst growth performance.
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