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RISS 인기검색어
- 검색키워드
- 저자 : Juan Battaglia Aljaro (검색결과 1 건)
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Cynthia Lisette Jo Rivero,Junior Llontop Torres,Juan Battaglia Aljaro,Sungchul C. Bai 한국수산과학회 양식분과 2021 한국수산과학회 양식분과 학술대회 Vol.2021 No.4
Two experiments were conducted to evaluate the effects of a natural feed additive (Alquernat Inmuplus<sup>®</sup>, AI) on growth performance in fry tilapia, Oreochromis niloticus, and in fry rainbow trout, Orcorhynchus mykiss. Nine group of twenty-five tilapia (0.22±0.03) were randomly distributed into three treatment in triplicates rearing by the laboratory recirculation system, and six groups of four thousand rainbow trout (1.08±0.02) were randomly distributed into three treatments in duplicate rearing by the farm raceway in Peru. This commercial AI is known to contain equal amount of two plant extracts of Coneflower, Echinacea purpurea, and Dandelion, Taraxacum officinale. Fish were fed with three experimental diets consisting of 0 (CON), 2 (T2) and 4 (T4) ml of AI / kg of commercial diets. After 8 weeks of feeding trial, average of weight gain (WG) and specific growth rate (SGR) of tilapia fed T2 and T4 diets were significantly higher than those fish fed with CON diet (p<0.05). Feed conversion ratio (FCR) of tilapia fed T4 diet significantly better than those fish fed with CON diet, however, there were no significant differences among the fish fed T2 and CON diets. In addition, there were no significant differences in survival rate of tilapia fed the all experimental diets (p>0.05). After 90 days of feeding trial, average survival rates of trout feed T2 and T4 diets were significantly higher than those fish fed CON diet (p<0.05). Average FCR of trout fed CON diet were significantly better than those fish fed T4, however, there were no significant differences among the fish fed CON and T2 diets. Also, there were no significant differences in WG and SGR of fish fed all the diets. Therefore, these results indicated that Alquernant Inmuplus® could be beneficial as growth promoter in tilapia and as survival enhancer in rainbow trout, but more studies in the practical farm conditions would be needed.
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