【摘 要】
:
Was conducted a field trial in the Don Bosco To(n)ero Farm,Portuguesa State,for 298 days,evaluating the growth of Pacu (Piaractus brachypomus),using diets based on corn flour (HM) and meat meal (HC).U
【机 构】
:
Universidad Lisandro Alvarado,Decanato de Agronomía,UIPA,Tarabana,Estado Lara,Venezuela
【出 处】
:
第11届世界畜产大会(WCAP2013)
论文部分内容阅读
Was conducted a field trial in the Don Bosco To(n)ero Farm,Portuguesa State,for 298 days,evaluating the growth of Pacu (Piaractus brachypomus),using diets based on corn flour (HM) and meat meal (HC).Using a completely randomized design with two treatments T1 (60% and 39% HM HC) and T2 (50% and 49% HM HC) and 1% of pre-mix of vitamins and minerals,still wet granules (20% water aggregated) using a meat grinder diameter of 3 mm and dried at air forced oven at 60 ℃,with three replicates each,using a total of 1499 fry,T1 781 and T2 718,with 11,99 ± 0.35 g/fry,350-440 fry per tank of 36 m3 per repetition,use of forced aeration,and replacement of water evaporation and removing debris weekly food waste and feces every 30 days.
其他文献
Because of their high energy density and power capability,lithium secondary batteries have become an important power source for portable electronic devices such as cellular phones,laptop computers and
Sulfur is one of the most promising cathode candidates for next generation batteries due to high theoretical capacity (1675 mAh/g),natural abundance,low cost and environmental friendliness1.However,th
富锂层状正极材料在在4.50V以下首次充放电过程与普通三元的电化学行为并无差异,在充电电位4.50V,Li2MnO3材料被激活,此时锂离子从锂层脱出并伴随着产生O空位,随之形成层状MnO2组分.[1] 材料在初次充放电过程的结构变化至关重要,Mohanty et al 采用原位XRD测试Li1.2Co0.1Mn0.55Ni0.15O2电极,发现了峰位偏移和相结构调整现象.
以ZnSe和ZnTe纳米晶为代表的锌基半导体纳米晶,不仅具备优异的光电特性,还具有良好的环境和生物兼容性;是理想的发光和生物标记材料.近年来锌基半导体纳米晶在合成和光学性能调控方面都获得了明显进展,但在其能级结构表征方面却进展缓慢,特别是在其揭示能级结构与物性参数(尺寸、形貌、结构)之间关联方面缺乏系统研究.
磷酸铁锂(LFP)和磷酸钒锂(LVP)都是现在研究或者应用的主流聚阴离子锂离子正极材料.磷酸铁锂本身的结构特征[1]让其具有了颇为优异的性能,特别是安全性高和原材料廉价环保的特点使得其在诸如电动汽车、便携式移动设备电源、储能电源等领域发挥着重要的作用,磷酸钒锂的理论比容量高,但是容量衰减的较快,而且原料昂贵.考虑到他们性能上的优缺点,制备LFP和LVP的杂化材料是现在一个研究热点.
金属硼化物具有熔点高、硬度高、热稳定性好、抗氧化能力强等优良的物理性质,因此在军工和高新技术行业得到广泛的应用[1].其中,镍硼合金由于表现出独特的磁性、催化加氢以及储氢等能力而得到众多研究者浓厚的兴趣.
石墨烯(Graphene)是新近发现的一种具有二维平面结构的碳纳米材料,它的特殊单原子层结构使其具有许多独特的物理化学性质,如较大的比表面积和优良的电子传导能力.到目前为止,石墨烯在电催化领域发挥了很好的作用[1].
由于金属-分子-金属结(分子结)在分子开关、分子导线、分子二极管、分子整流器等方面具有潜在的应用价值,因此越来越受到人们的关注.现有研究表明分子结的电子传输性质受诸多因素的影响,如分子自身结构、分子锚定基团、分子和电极之间的接触构型、周围的媒介环境、接触的金属等.
A hierarchical Ni foam@Co3O4 pseudocapacitors materials were synthesized with Co(NO3)2·6H2O as raw materials and urea as a precipitating agent by a hydrothermal and annealing treatment.The phase struc
The objective of this study was to replace fishmeal with maggot meal in pullet and layer rations to verify its effect on growth and egg laying parameters of Isa–Brown laying hens.To this end,150 pulle