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自1983年起．808对虾配合饵料在我省推广应用以来，已获得了显着的经济效益和社会效益．促进了对虾养殖业的发展。1986年．省内对虾养殖产量和配合饵料用量之比巳达到1：1．2的水平，配合饵料已成为养殖对虾的重要饵料之一。为了指导对虾配合饵料的生产和销售沿着健康的方向发展，在产量迅速增长的同时， 相似文献
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本书由黄海水产研究所专家候文璞、汪哲夫撰写的一本专著《对虾配合饵料学》。本书较全面系统阐述对虾配合饵料的的著作。全书共分六章,分别介绍世界虾渔业和对虾配合饵料概况、对虾营养生物化学、配合饵料的选用的制备工艺、配合饵料的贮藏方法以及质量检验,并附有国内外多种配方实例 相似文献
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对虾配合饵料的研究和应用是国内外对虾养殖生产中急待解决的问题，是农牧渔业部水产局重点攻关项目之一。1979、1980年我所承担了省科委、省水产局下达的对虾配合饵料的研究课题。研究的主要内容有：一、通过两年重复试验筛选出“802”和“821”配合饵料配方；二、配合饵料加工工艺的研究；三、配合饵料与鲜饵料交替投饵技术的研究。 相似文献
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鉴于对虾的摄食习性,因此对虾的配合饵料需要高粘合性能的粘合剂,我们用摸拟对虾摄食试验检验粘合剂C_1的性能,证明C_1不仅在静水浸泡10小时以上能够保持形状,而且经得住对虾的抱、钳摄食,不产生碎裂现象。配制饵料时,C_1最适用量试验结果表明,当投饵间隔不超过5小时,C_1用量为0.33％,若投饵间隔为10小时,C_1用量须大于或等于0.85％。分别用C_1配制的饵料与褐藻胶配制的饵料进行饲养对比试验,结果吃C_1饵料的对虾生长稍好于吃褐藻胶饵料的对虾。根据C_1初步试验结果,我们认为C_1能够应用于对虾配合饵料的生产,因此值得进一步研究C_1对于对虾营养的影响。 相似文献
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以鲜活饵料双齿围沙蚕（Perinereis aibuhitensis）、赤子爱胜蚓（Eisenia foetida）和人工配合饵料投喂凡纳滨对虾（Litopenaeus vannamei），并测定各种饵料对其生长和免疫指标的影响。结果表明，沙蚕和蚯蚓单独投喂或与人工配合饵料配合投喂都可显著提高凡纳滨对虾的生长速率，但用沙蚕单独投喂的对虾成活率较低。蚯蚓与人工配合饵料配合投喂可显著提高对虾血清中抗菌活力、溶菌活力、酚氧化酶活力和血细胞数量；蚯蚓单独投喂可显著提高血清中抗菌活力、酚氧化酶活力和血细胞数量，对血清中溶菌活力作用不明显。沙蚕与人工配合饵料配合投喂可显著提高对虾血清中抗菌和溶菌活力．但对血清中酚氧化酶活力和血细胞数量变化作用不明显；单独投喂沙蚕对所测各项免疫指标影响均不显著。研究结果证实：利用蚯蚓和沙蚕可显著提高对虾的生长速率，但蚯蚓的饵料效果优于沙蚕。[中国水产科学，2006，13（4）：561—565] 相似文献
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蚯蚓与蝇蛆对中国对虾生长及抗白斑综合征病毒感染的研究 总被引：2，自引：0，他引：2
以中国对虾（Fenneropenaeus chinensis）为实验材料,分别投喂配合饲料、蚯蚓、蛤蜊、蝇蛆等四种饵料,利用生长和抗病性指标综合评价蚯蚓和蝇蛆作为中国对虾饵料的可行性。生长实验前测定每个实验组的初始体长和体重,养殖40d后再次测定生长指标,之后,分别投喂不同毒饵量进行人工感染实验。方差分析表明：投喂四种饵料后,蛤蜊组生长最快,其次是蚯蚓,再次是蝇蛆,最后是配合饲料,各组之间对虾体长增长差异显著（P<0.05）,体重增长差异极显著(P<0.01) 。利用线性固定模型分析不同饵料及不同病毒量感染下对中国对虾存活率的影响,其中蚯蚓组存活率最高,配合饲料组存活率最低,并且蚯蚓组存活率显著高于蛤蜊组和配合饲料组(P<0.05),蝇蛆组显著高于配合饲料组（P<0.05）。研究结果表明：蚯蚓和蝇蛆可显著提高中国对虾的生长速度,明显提高中国对虾的抗病性,是很好的对虾饵料。 相似文献
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中国对虾幼体发育阶段维生素A营养需要的研究 总被引：1，自引：0，他引：1
1996年5月11日～6月13日在黄海水产研究所麦岛实验基地以中国对虾（penaeuschinensis）幼体为材料,在其配合饵料中添加维生素A,进行中国对虾幼体发育阶段维生素A营养需要试验。结果表明,以本项研究采用的配合饵料的基本成分和配比为基础,配饵中维生素A为4～6mg／100g饵料时,对中国对虾幼体的变态、成活、健康有明显的促进作用。 相似文献
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Md. Al Amin Sarker Fatimah Mohamed Arshad Md. Ferdous Alam Zainal Abidin Mohamed Md. Akhtaruzzaman Khan 《Journal Of Applied Aquaculture》2013,25(2):76-91
ABSTRACTThai koi farming is relatively new in the aquaculture industry of Bangladesh. Costly industrial feed pellets is the main factor influencing the productivity of Thai koi (Anabas testudineus). Two types of feed, namely, floating and sinking, are commercially available in the country. The ingredients of both types of feed are more or less the same. Floating feed requires high technology, high pressure and temperature and hence is more expensive than sinking feed. Most of the Thai koi farmers use either floating or sinking feed, while some farmers use a mix of both types of feed. This article investigated the effects of these three feed types on Thai koi productivity using primary data collected from the Mymensingh district of Bangladesh. The performance of different feed types on productivity was investigated using the Cobb-Douglas production function and propensity score matching (PSM) methods. Floating feed led to the highest daily mean weight gain of fish, feed conversion ratios, and net returns. The regression and PSM results revealed that farmers using floating feed produced significantly higher quantity of fish per unit compared to those using the other feed types. The cost of feed per hectare was higher in the farms using the floating feed, but these farms earned extra return from the additional investment, compared with the farms that use the other feed types. Thai koi farmers are advised to use floating feed to reap higher production and returns on investment. 相似文献
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A study was conducted to evaluate the effects of using high-protein "finishing" feeds on production and fat content of channel catfish. Fish were fed either: a 32% protein feed for 150 days; a 28% protein feed for 150 days; a 28% protein feed for 90 days and then a 38% protein feed for 60 days; a 28% protein feed for 90 days and then a 35% protein feed for 60 days; a 28% protein feed for 120 days and then a 38% protein feed for 30 days; or a 28% protein feed for 120 days and then a 35% protein feed for 30 days. The study was conducted in earthen ponds stocked with channel catfish at a rate of 14,826 fish/ha (35 g initial weight) and fed once daily to satiation. There were no significant differences in either feed consumption, weight gain, final weight, feed conversion ratio, survival, or percentage visceral fat of catfish regardless of treatment. Fillets from fish fed the 28% protein feed for 150 days contained more fat than fish on other treatments. There was no advantage of finishing channel catfish on high-protein diets as compared to feeding either a 28 or 32% protein feed for the entire grow-out period. 相似文献
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根据对珠江斑鱯的资源调查结果,从饵料生物种类组成、出现频率、不同体长斑鱯的食物组成差异、食性的季节变化等方面研究了珠江斑鱯食性特点。表明天然水域中斑鱯主要以甲壳类、昆虫类、鱼类、环节动物、植物碎屑等为食,其中甲壳类的出现频率高达78．6％,水生昆虫的出现频率为45．8％。其食物类群的季节变化明显,但没有出现停止摄食的时期,斑鲼在春季的摄食强度最大,各类食物在春季出现的频率均高于其它季节,斑鱯摄食率和充塞度的季节变化是一致的。不同体长斑鱯的饵料有一定的转化或更替阶段,约170mm体长时为主要饵料转化的第一阶段,约240mm体长时为主要饵料转化的第二阶段,随着斑鱯体长的增长,其摄食饵料的个体变大,但种类减少。 相似文献
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本文依据2001—2009年饲料产业链上中下游产品价格的月度数据,使用Johansen模型、VEC模型等来研究猪、肉鸡和蛋鸡饲料产业链上中下游产品价格之间的长期协整关系和短期变动关系,并进行了Granger因果关系检验。研究表明,鱼粉、豆粕对于饲料价格波动的影响系数最大,但不同原料对于不同饲料的影响不一致。猪饲料是供给主导型的价格形成机制,大豆、鱼粉和玉米等都是猪肉饲料的Granger原因;肉鸡和蛋鸡饲料则是需求主导型价格形成机制,鱼粉和小麦麸是它们的Granger原因。 相似文献
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本试验采用三种不同的饲料投喂河蟹,观察其增重效果,结果表明:投喂1号饲料、2号饲料河蟹增重显著高于3号饲料,投喂1号饲料与2号饲料河蟹增重没有显著性差异。 相似文献
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T.S. AAS B.F. TERJESEN T. SIGHOLT M. HILLESTAD J. HOLM S. REFSTIE G. BAEVERFJORD K.‐A. RØRVIK M. SØRENSEN M. OEHME T. ÅSGÅRD 《Aquaculture Nutrition》2011,17(6):657-670
Rainbow trout with initial body weight 1144 g were fed two diets with high (feed A) or low (feed B) water stability for 6 weeks. During the last 2 weeks either stable or fluctuating oxygen saturation, salinity and temperature was introduced. High water stability of the feed was associated with harder pellets, less dust formation and less broken pellets compared to feed with low water stability. During the first 4 weeks, feed intake was 23% higher in trout fed diet B than in those fed diet A. Fluctuating environment resulted in a severe drop in feed intake for both dietary groups. At termination of the trial, stomachs of trout fed feed B contained mashed pellets and free water and oil. Stomachs of trout fed feed A contained more intact pellets and little fluid. The apparent digestibility of protein, starch, dry matter and energy was highest in feed A. The apparent digestibility of P and Zn was highest at stable environment, and the absorption of P was highest from feed A. In conclusion, physical quality affected the nutritional value of the feeds, and differences in nutritional value at stable or fluctuating environment appeared to be related to feed intake. 相似文献
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配合饲料和活饵料对刀鲚幼鱼生长、存活和消化酶、非特异性免疫酶、代谢酶及抗氧化酶活性的影响 总被引：5，自引：1，他引：4
为了解配合饲料和活饵料对刀鲚幼鱼生长、存活和几种酶活性的影响,对用配合饲料和活饵料喂养178 d的刀鲚幼鱼的生长、存活和消化酶、非特异性免疫酶、代谢酶以及抗氧化酶活性进行分析与比较。结果显示,配合饲料组的最终体长、体质量、成活率、鱼体肥满度和肝指数(分别为125.17 mm、6.27 g、65.73%、0.31 g/cm3和1.4%)显著低于活饵料组(分别为150.66 mm、12.39 g、85.59%、0.36 g/cm3和1.9%),两组鱼的肠长和体长比无显著差异(分别为25.3%和23.6%);两组鱼的肝脏中均未检测出蛋白酶,配合饲料组的幽门盲囊中碱性蛋白酶的活性(43.49 U/mg prot)显著低于活饵料组(86.37 U/mg prot),但两处理组鱼胃中酸性蛋白酶和肠道中碱性蛋白酶的活性均没有显著差异;配合饲料组肠道和幽门盲囊中的淀粉酶活性(分别为196.63和575.93 U/g prot)显著低于活饵料组(分别为928.91和1 755.90U/g prot),但两处理组鱼肝脏和胃中的淀粉酶活性没有显著差异;两处理组鱼的肝脏和胃中均未检测出脂肪酶,配合饲料组的肠道脂肪酶活性(23.55 U/g prot)显著高于活饵料组(14.39 U/g prot),但两处理组幽门盲囊中脂肪酶活性(分别为17.90和13.23 U/g prot)没有显著差异;配合饲料组的肝脏碱性磷酸酶(AKP)活性(103.44 U/g prot)显著高于活饵料组(58.20 U/g prot),而配合饲料组的肝脏谷草转氨酶(AST/GOT)活性(20.38 U/g prot)显著低于活饵料组(32.51 U/g prot);肝脏中其余被检测的5种酶活性(ACP、ALT/GPT、SOD、GSH-PX和CAT)和血清中被检测的代谢酶(ALT/GPT和AST/GOT)及抗氧化酶(SOD和GSH-PX)活性在两处理组之间均没有显著差异。研究表明,刀鲚能摄食配合饲料,配合饲料组和活饵料组的大多数消化酶、非特异性免疫酶、代谢酶及抗氧化酶活性,没有显著性差异,但配合饲料组的刀鲚生长和成活率远低于活饵料组,建议今后研发和改进刀鲚配合饲料,逐步替代活饵料。 相似文献
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Feed intake and growth of Atlantic salmon, Salmo salar L., fed diets supplemented with oxytetracycline and squid extract 总被引：1，自引：0，他引：1
This study examined the long-term effects of a feeding deterrent, oxytetracycline (OTC), and a feeding stimulant, squid extract, on feed intake, growth and dry matter (DM) digestibility in Atlantic salmon, Salmo salar L. Fish were fed one of four diets for 9 weeks: 1. commercial feed formulation (basic); 2. BM (basic plus 20 g kg−1 OTC); 3. BMS (BM plus 10 g kg−1 squid extract); 4. BS (basic plus 10 g kg−1 squid extract). OTC initially reduced the palatability of the feed, but the fish seemed to become accustomed to the taste of OTC over time. Addition of squid extract to the medicated feed (BMS) seemed to mask the aversive taste of OTC, but the effect on feed consumption was of short duration. Addition of squid extract to the basic feed (BS) had no significant effect on feed intake, growth or feed digestibility. The growth of fish fed medicated diets (BM and BMS) was depressed, probably as a consequence of reduced feed digestibility. The two additives led only to temporary changes in feed acceptability, but both growth and DM digestibility were affected by OTC. Thus, we suggest that short-term studies may be inadequate to test whether deterrent or stimulant properties of feed ingredients are of practical importance in feed formulation. 相似文献