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外源酶制剂对黄颡鱼稚鱼消化酶活性、消化率及粪便氮磷含量的影响 被引量:6
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作者 王国霞 孙育平 +5 位作者 牛凤池 何飞 莫文艳 朱喜锋 曹俊明 黄燕华 《广东海洋大学学报》 CAS 2017年第6期19-25,共7页
在以鱼粉、豆粕、棉籽粕和双低菜籽粕为蛋白源的实用饲料中分别添加植酸酶1 000 IU/kg和复合酶制剂400 mg/kg,饲喂初始体质量为(1.02±0.01)g的黄颡鱼稚鱼56 d,探讨外源酶制剂对稚鱼消化酶活性、消化率及粪便氮、磷含量的影响。结... 在以鱼粉、豆粕、棉籽粕和双低菜籽粕为蛋白源的实用饲料中分别添加植酸酶1 000 IU/kg和复合酶制剂400 mg/kg,饲喂初始体质量为(1.02±0.01)g的黄颡鱼稚鱼56 d,探讨外源酶制剂对稚鱼消化酶活性、消化率及粪便氮、磷含量的影响。结果表明:与对照组比较,二实验组稚鱼胃蛋白酶活性均高于对照组(P<0.05),植酸酶组稚鱼肠道蛋白酶、胃淀粉酶活性高于对照组,差异有统计学意义(P<0.05)。植酸酶组稚鱼对饲料干物质、粗蛋白质、总能、灰分和磷表观消化率高于对照组,灰分和磷表观消化率也高于复合酶组,差异均有统计学意义(P<0.05);复合酶组稚鱼对饲料粗脂肪、总能表观消化率高于对照组,差异有统计学意义(P<0.05)。实验组稚鱼粪便氮含量与对照组均差异无统计学意义(P>0.05);植酸酶组稚鱼粪便磷含量低于对照组,差异有统计学意义(P<0.05)。在稚鱼实用饲料中添加植酸酶可提高消化道消化酶活性,提高其对饲料营养物质的表观消化率,减少粪便磷排放。 展开更多
关键词 植酸酶 复合酶 黄颡鱼 稚鱼 消化酶活 消化率 粪便氮、磷
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The Enhancement of Melon Fruit Quality by Application of the Fertilizer and Gibberellin 被引量:1
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作者 Sri Budiastuti Djoko Pumomo Trijono Djoko Sulistyo Suharto Ponco Rahardjo Linayanti Darsono YosefVictorianus Pardjo 《Journal of Agricultural Science and Technology(B)》 2012年第4期455-460,共6页
Generally, the diameter of organic melon fruit relatively short (the fruit is small), weight of fruit just as big as 1.25-1.49 kg only, while weight of inorganic melon fruit can reach 2-3 kg. The research was conduc... Generally, the diameter of organic melon fruit relatively short (the fruit is small), weight of fruit just as big as 1.25-1.49 kg only, while weight of inorganic melon fruit can reach 2-3 kg. The research was conducted by experiment method with the aim to enhance quality of the organic melon fruit. Experiment I is: N, P and K fertilizer solution concentration as main plot (0, 20, 30, and 40 g L^-1) and dose of cow manure fertilizer as sub plot (0, 10, 15, and 20 ton hal) (there are 16 treatment combinations). Experiment II is kinds of dung as main plot (chicken, cow, and goat) and dose of fertilizer as sub plot (20, 25, and 30 ton hat) (there are 9 treatment combinations). Experiment III is dose of cow manure fertilizer as main plot (15, 20, 25, and 30 ton hal) and gibberellins concentration as sub plot (0, 30, 60, and 120 ppm) and (there are 16 treatment combinations). Each of the treatment combination replicated 3 times. The result showed that chicken, cow, and goats manure can be used in organic cultivation of melons, and cow manure has the highest potential. The role of the dose is relatively low in plant growth, but to improve the quality of fruit need dose of 10-15 tons hat. The addition of inorganic NPK fertilizer solution or use of gibberellins can increase growth and fruit quality of melon (the used of gibberellins are recommended). 展开更多
关键词 Organic fertilizer MELON gibberellins.
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