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The marine microbial biomass, Novacq™, a useful feed additive for postlarvae and juvenile Litopenaeus vannamei
Aquaculture ( IF 4.5 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.aquaculture.2020.735959 Artur N. Rombenso , Minh Hoang Duong , Barney M. Hines , Tùng Mã , Cedric J. Simon
Aquaculture ( IF 4.5 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.aquaculture.2020.735959 Artur N. Rombenso , Minh Hoang Duong , Barney M. Hines , Tùng Mã , Cedric J. Simon
Abstract Although Litopenaeus vannamei is the most produced and researched shrimp species worldwide, there are no published studies evaluating the use of the microbial biomass, Novacq™, in L. vannamei feeds. This study investigated the effects of supplementing Novacq™ at 100 g kg−1 in practical and commercial feeds in postlarvae 12 (PL 12) and juvenile white leg shrimp. Three experiments were carried out. In Experiment 1, PL12 were fed for 21 days with a Control, Novacq™ or Commercial feed. The Novacq feed was equal in PL12 performance to the Commercial diet and superior to the Control (final individual weight = 0.169, 0.167 and 0.087 g; percentage weight gain = 8014, 7956 and 4091% for Novacq™, Commercial and Control feeds, respectively). No statistical differences in survival, coefficient of variation and daily feed offered were observed across dietary treatments. In Experiments 2 and 3 the performance of juvenile shrimp fed practical and Commercial feeds supplemented with Novacq™ for 42 days, respectively. In Experiment 2, Novacq™ feed outperformed the Control feed by improving survival (89 vs. 51%), final individual weight (7.4 vs. 3.5 g), weight gain (7.1 vs. 3.2 g), and percentage weight gain (1997 vs. 898%). In Experiment 3 supplementing Novacq™ into the Commercial feed improved performance (final individual weight = 6.4 vs. 5.5 g, weight gain = 6.0 vs. 5.1 g, and percentage weight gain = 1712 vs 1443%) and reduced the coefficient of variation (19 vs 53%). Shrimp fed feeds containing Novacq™ also displayed numerically reduced daily feed offered and estimated feed conversion ratio values in comparison to the other dietary treatments. Whole-body composition was similar across dietary treatments. In summary, supplementation of Novacq™ in practical and Commercial feeds improved growth and efficiency of PL12 and juvenile shrimp suggesting its validity as a useful feed additive in the nutrition of white leg shrimp.
中文翻译:
海洋微生物生物质 Novacq™,一种对虾虾和凡纳滨对虾幼鱼有用的饲料添加剂
摘要 尽管南美白对虾是世界范围内生产和研究最多的虾种,但没有发表的研究评估在南美白对虾饲料中使用微生物生物量 Novacq™。本研究调查了在 12 号虾苗 (PL 12) 和幼虾的实际和商业饲料中添加 100 g kg−1 的 Novacq™ 的效果。进行了三个实验。在实验 1 中,PL12 与对照、Novacq™ 或商业饲料一起饲喂 21 天。Novacq 饲料在 PL12 性能方面与商业饲料相同并优于对照(最终个体体重 = 0.169、0.167 和 0.087 克;Novacq™、商业饲料和对照饲料的增重百分比分别为 8014、7956 和 4091%) . 存活率无统计学差异,在日粮处理中观察变异系数和提供的每日饲料。在实验 2 和 3 中,分别用实用饲料和商业饲料喂养补充 Novacq™ 42 天的幼虾的性能。在实验 2 中,Novacq™ 饲料在提高存活率(89 对 51%)、最终个体体重(7.4 对 3.5 克)、体重增加(7.1 对 3.2 克)和体重增加百分比(1997 对 3.2 克)方面优于对照饲料. 898%)。在实验 3 中,将 Novacq™ 添加到商业饲料中改善了性能(最终个体重量 = 6.4 与 5.5 克,增重 = 6.0 与 5.1 克,增重百分比 = 1712 与 1443%)并降低了变异系数(19 53%)。与其他日粮处理相比,含有 Novacq™ 的虾饲料还显示出每日提供的饲料数量和估计的饲料转化率数值减少。整个饮食治疗的全身成分相似。总之,在实用和商业饲料中添加 Novacq™ 可改善 PL12 和幼虾的生长和效率,表明其作为白腿虾营养中有用的饲料添加剂的有效性。
更新日期:2021-01-01
中文翻译:
海洋微生物生物质 Novacq™,一种对虾虾和凡纳滨对虾幼鱼有用的饲料添加剂
摘要 尽管南美白对虾是世界范围内生产和研究最多的虾种,但没有发表的研究评估在南美白对虾饲料中使用微生物生物量 Novacq™。本研究调查了在 12 号虾苗 (PL 12) 和幼虾的实际和商业饲料中添加 100 g kg−1 的 Novacq™ 的效果。进行了三个实验。在实验 1 中,PL12 与对照、Novacq™ 或商业饲料一起饲喂 21 天。Novacq 饲料在 PL12 性能方面与商业饲料相同并优于对照(最终个体体重 = 0.169、0.167 和 0.087 克;Novacq™、商业饲料和对照饲料的增重百分比分别为 8014、7956 和 4091%) . 存活率无统计学差异,在日粮处理中观察变异系数和提供的每日饲料。在实验 2 和 3 中,分别用实用饲料和商业饲料喂养补充 Novacq™ 42 天的幼虾的性能。在实验 2 中,Novacq™ 饲料在提高存活率(89 对 51%)、最终个体体重(7.4 对 3.5 克)、体重增加(7.1 对 3.2 克)和体重增加百分比(1997 对 3.2 克)方面优于对照饲料. 898%)。在实验 3 中,将 Novacq™ 添加到商业饲料中改善了性能(最终个体重量 = 6.4 与 5.5 克,增重 = 6.0 与 5.1 克,增重百分比 = 1712 与 1443%)并降低了变异系数(19 53%)。与其他日粮处理相比,含有 Novacq™ 的虾饲料还显示出每日提供的饲料数量和估计的饲料转化率数值减少。整个饮食治疗的全身成分相似。总之,在实用和商业饲料中添加 Novacq™ 可改善 PL12 和幼虾的生长和效率,表明其作为白腿虾营养中有用的饲料添加剂的有效性。