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详细阐述了湘云鲫膨化饲料的配方、制备方法和加工过程,分析了这种饲料的质量,是一种养殖湘云鲫较理想的环保型水产饲料。 相似文献
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福建省龙岩市龙马畜牧饲料有限公司涂华钦，根据性别、体况等相一致的原则，将30头30日龄断奶长大或大长仔猪随机分为3组，每组设2个重复（即设对照组、试验Ⅰ组、试脸Ⅱ组）。时照组以玉米、豆粕等配制饲粮，试验Ⅰ组以膨他全脂大豆替代50％的豆粕，膨化玉米替代50％的玉米；试验Ⅱ组日增重以膨化全脂大豆替代全部豆粕，膨化玉米替代全部玉米，其它饲粮组成不变，进行40d的饲养试验。结果表明，试验Ⅰ组日增重比对照组提高了18．9％，差异显著（P〈0．05）；试验Ⅱ组比对照组提高了12.3％，差异显著（P〈0．05）；试验Ⅰ组和试验Ⅱ组饲料利用率分别比对照组提高了11．7％和6．5％． 相似文献
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饲用血粉的新生产工艺及采用膨化血粉喂养试验的效果 总被引：13，自引：0，他引：13
饲用血粉的生产从采用干燥工艺，发酵工艺，到采用喷雾干燥工艺，都存在产品的可消化率偏低的问题，并涉及诸如生产环境和耗能过大等问题，本校采用专门研制的连续膨化设备对含有一定水分的碎血块进行连续瞬时加工，经进一步粉碎后，制成了新型饲用血粉－膨化血粉，其体外消化率达９７．６％。用含有膨胀化血粉的配合饲料喂养淡水鱼类的平均饲料系数为１．７９。利用膨化血粉和喷雾血粉对ＡＡ肉鸡进行对比喂养试验表明，两组的平均饲 相似文献
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沉性硬颗粒饲料是我省目前水产养殖生产应用的主要饲料，而膨化浮性饲料在我省尚未应用于规模化水产养殖生产中。为了探讨膨化浮性饲料在我省水产养殖应用的可行性，2002年，在黑龙江省水产技术推广总站水产试验场，采用豆粕型膨化浮性饲料进行德国镜鲤鱼种养至商品鱼的生长性能和经济效益示范试验，取得了较好的效果。 相似文献
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本文是通过大豆蛋白浓缩膨化饲料和含8％鱼粉普通膨化饲料培育德国镜鲤夏花的试验，进行了夏花的生长速度、水质、经济效益比较。从试验数据可以得出大豆蛋白浓绶膨化饲料投喂德国镜鲤夏花不影响成活率和生长速度。所以大豆蛋白浓缩膨化饲料可以替代含8％鱼粉普通膨化饲料培育德国镜鲤。 相似文献
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膨化与非膨化鲤鱼育成料的养殖效果比较 总被引：3，自引：0，他引：3
近20年来,膨化技术在饲料加工中有长足的发展,被认为是一种先进的水产饲料加工技术,尽管有资金投入高、加工开支大、维生素损失等缺点,但优点仍是主要的,如膨化料在水中保形的时间长、营养成分的可消化率高、饲料系数低、养殖成本低、对水域的污染小等。由于上述认识多半是根据国外对叉尾鱼回,欧洲鳗、鲑鳟鱼类的研究作出的,对我国主养的鲤鱼及其它鲤科鱼类的了解还不充分,为此,我公司于1999年10月至2000年3月进行了非膨化的挤压硬颗粒料与膨化料的养殖效果试验。1 试验料11试验料及其制作试验料四种,其中挤压硬颗粒料一种,膨化料三种,使用… 相似文献
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文章简要介绍了膨化全脂大豆的营养成分、具有的优势及在国内外的应用研究。通过对膨化全脂大豆营养价值的认识了解,以促进其在水产饲料中的广泛应用。 相似文献
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美国大豆协会与海南陵水601号网箱养殖场、海南省水产技术推广站和全国水产技术推广总站合作进行卵型鲳鲹(Trachinotus ovatus)深水网箱养殖试验。本试验的目的是利用美国大豆协会OCAT(深水网箱养殖技术)标准网箱和海水鱼膨化饲料养殖卵型鲳鲹,对于鱼类养殖和网箱性能进行评估。1材料与方法1.1网箱结构本试验用的深水网箱为美国大豆协会设计,体积为100 m3的截顶四方锥形(塔形)网箱。网箱顶部的面积为2 m×2 m,网箱底部的面积为7m×7 m,网箱垂直高度约4.5 m。网箱的框架由HDPE(高密度聚乙烯)管件构成,网箱顶部及底部的框架以直径280 mm、… 相似文献
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《Journal Of Aquatic Food Product Technology》2013,22(3):21-34
Abstract A catfish feed was extruded to determine how particle size, moisture content and screw speed affected the pellet durability, water stability index, and buoyancy. Increasing moisture content from 250 to 300 g/kg required less die pressure, specific mechanical energy and product temperature to produce durable pellets that were stable in water. Increasing screw speed from 200 to 400 rpm also lowered die pressure, due to a lower filled length of the extruder screw channels, but increased specific mechanical energy and product temperature; the resulting pellets had a lower apparent bulk density, but a higher degree of starch gelatinization and water stability index. Reducing particle size from 1200 to 700 m decreased die pressure and apparent bulk density, but increased product temperature, degree of starch gelatinization, pellet durability index and water stability index. 相似文献
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Sophie B. George John M. Lawrence Addison L. Lawrence John Ford 《Journal of the World Aquaculture Society》2000,31(2):232-238
Sea urchin eggs are used extensively as models for studies in developmental and molecular biology. Developing aquaculture techniques and facilities for sea urchins would facilitate their use for this purpose and for production of young sea urchins for stock enhancement. A basic requirement for the aqua-culture of sea urchins is the availability of a feed that predictably produces eggs of a consistent, high quality. We tested an extruded feed with Lyrechinus variegatus for this purpose. Lytechinus variegatus (mean horizontal diameter 55 mm, 75 g wet weight) were collected in April 1998. Nine individuals were maintained in each of four aquaria with closed, recirculating filtered sea water. They were fed approximately 1 g extruded feedindividual per week. All feed was consumed. The mean weight of the sea urchins changed little with this feeding regime. The sea urchins spawned spontaneously on a monthly basis during water changes. Four females in February and one in March were spawned by injection with potassium chloride. Fertilization was 99–100% successful in each case. Egg diameters from these spawnings and a spontaneous spawning in April ranged from 102 × 6 to 128 × 1 μm. Gastrulation occurred in <20 h and metamorphosis after 22 to 37 d. Newly metamorphosed juveniles ranged in size from 435 × 38 to 473 × 56 μm. Egg size, larval size, the chronology of embryonic and larval development, and size of newly metamorphosed juveniles are similar to those obtained from field individuals reported in the literature. These results indicate that a predictable production of high quality eggs by sea urchins under controlled conditions in the laboratory with a prepared feed is feasible. 相似文献
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1前言大豆是世界上种植最广泛的油料作物。提取油脂后的豆粕因其良好的氨基酸平衡和较高的粗蛋白含量(44%~50%)而被用作动物饲料的主要蛋白原料。豆粕在水产饲料中的应用也越来越广泛。全球豆粕产量在以往20多年的连续增长,使豆粕成为在水产饲料未来应用方面最有希望代替鱼粉的 相似文献
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Yong‐Jun Chen Li‐Xia Tian Hui‐Jun Yang Peng‐Fei Chen Yuan Yuan Yong‐Jian Liu Gui‐Ying Liang 《Journal of the World Aquaculture Society》2012,43(2):187-197
Six practical extruded diets were formulated to investigate the effect of graded levels of starch (17, 22, and 26%) associated with either 30 or 34% protein level on growth, feed utilization, body composition, and hepatic transaminases of juvenile grass carp, Ctenopharyngodon idella. Over an 8‐wk growth trial, survival rates (99–100%) were not significantly affected (P > 0.05) by dietary treatments. Independent of dietary starch level, weight gain (WG, %), specific growth rate (SGR, %/d), and feed efficiency ratio (FER) showed significant better response (P < 0.05) of fish fed 34% protein diet than those of fish fed 30% protein diet. Protein productive value (PPV) was only affected by dietary protein level, with higher values in the 34% protein level than their 30% counterparts. Irrespective of dietary protein level, lipid productive value (LPV), energy productive value (EPV), viscerosomatic index (VSI, %), intraperitoneal fat ratio (IPF, %), and whole body, liver, and muscle lipid level increased with increasing starch supply. At the same protein level, plasma triacylglycerol (TG), cholesterol (CHO), and low density lipoprotein‐cholesterol (LDL‐C) increased when dietary starch level increased from 17 to 26%. Neither dietary protein level nor starch level affected activities of hepatic alanine aminotransferase (ALAT) and aspartate transferase (ASAT). The overall results in this study suggested that the higher 34% protein was superior for juvenile grass carp and an increase in dietary starch level did not improve growth or protein utilization but enhanced whole‐body lipid deposition and liver, viscera and muscle lipid level. The diet containing 34% protein and 17% starch was optimal for practical production of juvenile grass carp. 相似文献
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《Journal Of Applied Aquaculture》2013,25(2):67-71
The stability of the B-complex vitamins thiamin mononitrate, riboflavin, pyridoxine hydrochloride, niacin, and pantothenic acid was determined during extrusion processing and drying of catfish feed. Riboflavin, pantothenic acid, and niacin had retention values of l00%, l00%, and 96.3%. respectively, under conditions typical of that for processing catfish feed. Thiamin mononitrate and pyridoxine hydrochloride were relatively stable, having retention values of 65.1% and 70.3%, respectively. Results from this study should be usefhl in modifying catfish vitamin premixes. 相似文献
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References： 《海洋水产研究》2001,22(4):64-70
Feed quality,the nutritional quality of feed components may affect absorption and digestibility of the feed,and thus the effluent of chemical components from the faeces.In particular,regimen based on high quality feed in aquaculture may reduce effluents and pollution to the surrounding environment. 相似文献
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微生态制剂———新型的绿色饲料添加剂 总被引：3，自引：0，他引：3
综述了国内外对微生态制剂的研究进展,水产动物微生态制剂的特点和菌种,影响水产动物微生态制剂作用的因素,今后水产养殖中应用微生态制剂的发展趋势及前景展望等。 相似文献