ICP—AES法同时分析动物性饲料中的多种元素

微量元素在动物体内含量甚少,但在新陈代谢中却起着重要作用.维持动物组织中必需的无机物主要来源于动物的饲料,特别是对毛皮动物,补给适量的微量元素,可促进其生长发育,提高毛皮质量,预防自咬症、食毛症的发生.有关ICP—AES法测定动物性饲料中的多种元素,国内外报道不多,以往的分析方法(如化学法、原子吸收光谱法和分光光度法等)都基于样品中单元素的测定,而ICP—AES法具有其独特的优点,同时多元素的分析奠定了快速的基础,线性范围宽又有利于研究复杂的各类饲料配方.

动物饲料生产中的排放物及其净化

动物饲料生产中的排放物及其净化国内贸易部武汉科学研究设计院（４３００７０）阮学凡１引言科学技术的飞速发展使我们对现代化农业、现代化工业乃至现代化生活不再陌生。新技术越来越短的更替周期使世界象一部正在往下翻的色彩斑斓的画卷，在这种变化面前，“日新月异”...

浅析我国饲料鱼粉的原料与产品品质

世界总鱼获物中有三分之一用做鱼粉原料,年产量稳定在460万吨。日本、苏联、秘鲁、挪威、丹麦、美国、智利等国的鱼粉年产量均在30万吨以上。我国生产鱼粉已有30余年的历史,随着海洋渔业的发展以及对鱼粉饲料认识的逐步提高,鱼粉产量也在逐年上升,其中浙江省产量占全国总产量的67.7。％,其次是广东、广西、辽宁、江苏、上海、福建、天津等省市。但国产鱼粉多数质量较差,合格产品年仅3万吨。进口鱼粉质量好的原因之一,是由于生产鱼粉的原料主要是海洋捕捞的全鱼,如秘鲁主要是鯷鱼,智利主要是鲑鱼及沙丁鱼;美国、挪威、丹麦主要是步鱼。而我国主要是低值的小杂鱼、蟹。

鱼粉在梅花鹿瘤胃内有效降解率的测定

用3头装有永久性瘤胃瘘管的成年雄性生茸期梅花鹿，采用尼龙袋法，测定鱼粉饲料在瘤胃内的干物质有效降解率（DMD）蛋白质有效降解率（CPD）、有机物有效降解率（DMD），其结果分别为33．30％，36．89％，34．66％，鱼粉有效降解率较低，是高产茸鹿理想的蛋白质补充料。

羽毛粉的膨化加工

本文对羽毛挤压膨化工艺进行初步研究 ,结果表明 ,挤压膨化过程可显著提高羽毛粉的可消化性 ,随挤压膨化温度的增加 ,产品中有效胱氨酸含量下降 ,而提高转速与适当增加羽毛原料的入机水分可提高有效胱氨酸含量 ,生物学试验揭示 ,膨化羽毛粉与高压水解羽毛粉的氨基酸生物可利用率 ,无论是必需氨基酸还是总体氨基酸 ,差异均不显著 (P >0 0 5) 。

Use of the Devil Fish in Animal Feed as an Alternative to Productive Diversification and Mitigation of Environmental Damage in the South and West of M^xico

The devil fish is a resource that can be used in animal feed. This fish is not used in Mexico for human consumption and has been regarded by fishermen as a pest; not having a use for this species has represented an ecological problem disposed on the banks of water bodies. This work allows to observe as a considered plague resource can be used in animal feed through its transformation in silage acid, thus contributing to the establishment of a new activity of the fishermen and providing the necessary protein for the production of pigs, sheep and cattle in the region, constituting both a complementary relationship： Fishermen obtain income by selling the silage to livestock producers and they get a good quality product that allows them to reduce the costs of food.

Evaluation of Pomegranate Pomace Using in Situ and Gas Production Techniques

This study was carried out to determine nutritive value of pomegranate pomace using in situ and gas production techniques. In this study, two fistulated wethers （38 ± 1.5 kg） were used in situ method. The gas production was measured at 2, 4, 6, 8, 12, 16, 24, 36 and 48 h and ruminal DM （dry matter） and CP （crude protein） disappearances were measured at 0, 2, 4, 6, 8, 12, 16, 24, 36, 48, 72 and 96 h. DM degradabilities of treated pomegranate pomace at 8 h to 96 h were larger than untreated pomegranate pomacewhich showed significant differences （p 〈 0.05）. CP degradabilities of treated pomegranate pomace at 96 h was 62.38% that showed significant differences （p 〈 0.05）. The metabolizable proteins of treated and untreated pomegranate pomace were 73 and 64.27 g/kg respectively that showed significant differences （p 〈 0.05）. The gas productions of treated and untreated pomegranate pomace at 48 h were 79.91 and 128.75 mL/g DM respectively that showed significant differences （p 〈 0.05）. It was concluded that the pomegranate pomace can be used largely as ruminant feeds.

羽毛粉在饲料中的利用

羽毛粉含有80～90％的粗蛋白质。由于该类蛋白质是由结合牢固的二硫键(-S-S-)多肽链组成,天然状态不能被蛋白酶消化,所以饲用价值较低。近30年来,国内外科学工作者就如何提高羽毛蛋白的利用价值作了大量研究。结果表明,羽毛粉是一种很有前途的、来源于工业生产副产物的动物性蛋白饲料。一、羽毛粉的营养价值 (一)化学组成羽毛粉化学组成见表1、2。表1