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Survival Rate and Early Development of Giant Gourami Padang Strain Osphronemus gouramy (Perciformes: Osphronemidae) 大食糜巴东系食糜的成活率及早期发育(表演目:食糜科)
Pub Date : 2019-01-01 DOI: 10.35248/2155-9546.19.10.576
L. Tanjung
Aquaculture of gourami in Indonesia is still carried out traditionally with a simple touch of technology that makes the mortality rate of larvae is still very high. This study aimed to determine the survival rate and development of giant gourami Padang strain larvae Osphronemus gouramy reared in a traditional way and to gain insight into the cause of mass death during the larval period. The larvae were obtained from six pairs of broodstocks that consisted of three categories, which is the grey broodstocks that spawned the previous month, the grey broodstocks that did not spawn the previous month, and the pink broodstocks that did not spawn the previous month, and were named after the body colour of their respective parents. The study was conducted in duplicate and the larvae were sampled for photography every day and the larvae development was described from Day 1 to Day 10. The eggs began to hatch on Day 2, and all eggs hatched on Day 3 that marked the end of the embryonic stage. Pale melanophores became more intense on Day 6 and the yolk sac was still visible on Day 10. The mass deaths during embryogenesis are thought to be influenced by factors such as broodstock quality, while the ones occurring in the late larval period are more likely related to water quality and stocking density. Ammonia excretion subsequently oxidized into more toxic nitrite was the only possible pollutant to be present in the rearing water. In the Grey II.1 and Grey II.2 basins where the mass death occurred on Day 10, the mean of survival rates declined significantly from 83.45% on Day 9 to 32.15% on Day 10. Thus, this study confirmed that the basins with larvae density of above 30 individuals per litre can support the larvae rearing for eight days and on Day 9 the larvae must be transferred to another tank. The success of larval production depends not only on the welfare and the feed quality of the broodstocks but also on the optimal environment in larval rearing. In addition, the nomenclature for the larval stage of gourami was also discussed and determined.
印度尼西亚的gourami水产养殖仍然是传统的,采用简单的技术,这使得幼虫的死亡率仍然很高。本研究旨在测定传统饲养法饲养的巴东系巨gourami Osphronemus gouramy幼虫的成活率和发育情况,了解巨gourami幼虫期大量死亡的原因。从6对亲鱼中获得幼虫,这些亲鱼分为三类,即上个月产卵的灰色亲鱼、上个月没有产卵的灰色亲鱼和上个月没有产卵的粉红色亲鱼,并以各自父母的身体颜色命名。试验一式两份,每天取样拍摄幼虫,第1 ~第10天记录幼虫发育情况。蛋在第2天开始孵化,所有蛋在第3天孵化,这标志着胚胎阶段的结束。第6天苍白的黑色素细胞变得更加强烈,第10天卵黄囊仍然可见。胚胎发生期间的大量死亡被认为受诸如亲鱼质量等因素的影响,而发生在幼虫后期的死亡更可能与水质和放养密度有关。随后被氧化成毒性更大的亚硝酸盐的氨排泄是饲养水中唯一可能存在的污染物。在第10天发生大规模死亡的灰色II.1和灰色II.2流域,平均存活率从第9天的83.45%显著下降到第10天的32.15%。因此,本研究证实,幼虫密度在30只/升以上的池可以支持8天的幼虫饲养,第9天必须将幼虫转移到另一个池中。仔鱼生产的成功不仅取决于亲鱼的福利和饲料质量,还取决于最佳的仔鱼饲养环境。此外,还讨论并确定了gourami幼虫期的命名法。
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引用次数: 0
Effect of Fiber Content in Practical Diet on Feed Utilization and Antioxidant Capacity of Loach, Misgurnus anguillicaudatus 实用饲料中纤维含量对泥鳅饲料利用及抗氧化能力的影响
Pub Date : 2019-01-01 DOI: 10.35248/2155-9546.19.10.577
Ying Sun, Xinglong Zhao, Haiyan Liu, Zhencai Yang
This study aimed to evaluate the effect of fiber content on feeding, growth performance, feed utilization and antioxidant ability of Taiwanese loach. The experimental feeds were divided into six groups, with crude fiber contents of 4.70%, 4.92%, 5.15%, 5.44%, 5.79% and 6.06%, respectively. A total of 576 loaches were randomly divided into 6 groups with 8 replicates of twelve fish each, and fed for 60 days. The results showed that crude fiber levels had significant effects on feeding rate (FR), feed conversion rate (FCR) and protein efficiency ratio (PER) in loaches, while specific growth rate (SGR) showed no significant difference (P>0.05). Crude fiber content had a significant effect on loach digestibility (P 0.05), while amylase activity decreased significantly (P<0.05). With increasing crude fiber content, MDA content in loach liver decreased significantly (P<0.05), while SOD activity did not change significantly. According to the current comprehensive evaluation, the appropriate crude fiber content in Taiwanese loach feed was 5.52% - 5.65%.
本研究旨在探讨纤维含量对台湾泥鳅摄食、生长性能、饲料利用及抗氧化能力的影响。试验饲料分为6组,粗纤维含量分别为4.70%、4.92%、5.15%、5.44%、5.79%和6.06%。试验选取576尾泥鳅,随机分为6组,每组8个重复,每个重复12尾,饲喂60 d。结果表明:粗纤维水平对泥鳅的摄食率、饲料系数和蛋白质效率有显著影响,而特定生长率无显著差异(P>0.05)。粗纤维含量显著影响泥鳅消化率(P 0.05),淀粉酶活性显著降低(P<0.05)。随着粗纤维含量的增加,泥鳅肝脏中MDA含量显著降低(P<0.05), SOD活性变化不显著。根据目前的综合评价,台湾泥鳅饲料中粗纤维的适宜含量为5.52% ~ 5.65%。
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引用次数: 3
Customer Perceptions towards Aquatic Pets and how that Influences Farming/Catching, Trading and Caring for these Animals in the Aquatic Trade Industry from both Fish Farms and Wild Caught Populations 消费者对水生宠物的看法,以及这些看法如何影响水产贸易行业的养殖/捕捞、交易和对这些动物的照顾,包括养鱼场和野生捕捞种群
Pub Date : 2019-01-01 DOI: 10.35248/2155-9546.19.10.575
S. Wright
One of the best days of my life was when I read the email that said I was hired as a sales assistant for a local aquatic specialist franchise branch. I had wanted to work in a petshop since I was a kid but my studies in Zoology and Genetics were sending my down a different career path and I categorised that as a childhood dream. So you can imagine how 5 years old I felt when I read that email at 31. This experience was well worth the time and it made me more aware how the Aquatic Trade Industry (ATI) operates, the customers’ perception of aquatic organisms and set-ups and how those two factors affect fish farming and wild catching.
我一生中最美好的日子之一是当我读到一封电子邮件,说我被当地一家水产专业特许经营分公司聘为销售助理。我从小就想在宠物店工作,但我在动物学和遗传学方面的学习让我走上了一条不同的职业道路,我把这归类为童年的梦想。所以你可以想象,当我31岁时读到那封邮件时,我是多么的5岁。这次经历非常值得,它使我更加了解水产贸易行业(ATI)的运作方式,客户对水生生物和设置的看法,以及这两个因素如何影响鱼类养殖和野生捕捞。
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引用次数: 0
Influence of Probiotics on the Growth Performance of Sex Reversed Nile Tilapia ( Oreochromis niloticus , Linnaeus, 1758) Fry 益生菌对反性罗非鱼(Oreochromis niloticus, Linnaeus, 1758)鱼苗生长性能的影响
Pub Date : 2019-01-01 DOI: 10.4172/2155-9546.1000564
Zinia Rahman, A. Mamun, I. Ahmad, I. Rashid
Tilapia culture could contribute a lot in boosting the production of fish so current investigation was aimed to improve the growth, feed utilization, survival of Nile Tilapia (Oreochromis niloticus) fry and benefit cost ratio by using probiotics during sex reversal and other steps of culture. The investigation was designed in three treatments where the first one fed on diet supplemented with Bacillus sp., and the second fed on diet containing Lactobacillus sp. while the third treatment fed on basal diet which was considered as control. After 100 days of investigation, it was observed that the fish groups fed with probiotics supplemented diets revealed significant improvement in aspect of growth. Highest yield of fingerling 3.4 kg was found in the treatment fed with Bacillus sp. which ultimately influence the gross revenue. Fry survivality was also found higher upto 66% in the treatments fed with probiotics compared to the control where there was no probiotic added in the feed. In all the treatments sex reversal rate was found the same (97%), revealed that the addition of probiotics in fish feed improves growth and survival of the sex reversed fingerling. Therefore, these probiotics might be useful to get higher production of sex reversed fish.
Tilapia养殖对提高尼罗罗非鱼(Oreochromis niloticus)鱼苗的生长、饲料利用率、成活率和效益成本比具有重要意义,因此本研究旨在通过在性别反转等养殖步骤中使用益生菌来提高尼罗罗非鱼(Oreochromis niloticus)鱼苗的生长、饲料利用率和效益成本比。试验设3个处理,第1组饲喂添加芽孢杆菌的饲粮,第2组饲喂添加乳杆菌的饲粮,第3组饲喂基础饲粮作为对照。经过100天的调查,观察到添加益生菌饲料的鱼组在生长方面有显著改善。投喂芽孢杆菌处理的鱼种产量最高,为3.4 kg,最终影响总收入。研究还发现,与饲料中不添加益生菌的对照组相比,添加益生菌的对照组的鱼苗存活率高达66%。在所有处理中发现性别反转率相同(97%),表明在鱼饲料中添加益生菌可以促进性别反转鱼种的生长和存活。因此,这些益生菌可能有助于提高性别反转鱼的产量。
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引用次数: 7
Length-Weight Relationship and Condition Factor Senggaringan Fish (Mystus singaringan) from Klawing River, Central Java, Indonesia 印度尼西亚中爪哇岛Klawing河的singgaringan鱼(Mystus singaringan)的长度-重量关系和条件因素
Pub Date : 2018-12-30 DOI: 10.4172/2155-9546.1000557
T. B. Pramono, D. Arfiati, M. Sri, U. Yanuhar
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引用次数: 0
Growth of Clarias gariepinus fingerlings fed on fixed ration level at different feeding frequencies 不同投喂频率下,固定日粮水平投喂加里宾Clarias gariepinus鱼种的生长
Pub Date : 2018-10-22 DOI: 10.4172/2155-9546-C3-030
pAdewolu Morenike Adunnip
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引用次数: 1
Pesticides: A threat to fish 杀虫剂:对鱼类的威胁
Pub Date : 2018-10-22 DOI: 10.4172/2155-9546-C3-028
pGarima Haritp
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引用次数: 0
Development of cost-effective feeds for marine fish feeding and growth 开发具有成本效益的海鱼饲料和生长
Pub Date : 2018-06-05 DOI: 10.4172/2155-9546-C1-023
Goh Chee Keong
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引用次数: 0
A Review on Feeding and Reproductive Biology of Ompok pabda with an Emphasis on its Conservation 龙柏取食与繁殖生物学研究进展及保护研究进展
Pub Date : 2018-03-27 DOI: 10.4172/2155-9546.1000525
Sandipan Gupta
Ompok pabda commonly known as pabda or butter catfish is a freshwater species which is widely distributed in India, Afghanistan, Pakistan, Bangladesh and Myanmar. In India and Bangladesh, this fish species has high preference as a table fish due to its delicious taste and high nutritional value. Its acceptability as an ornamental fish has recently been reported. Due to number of reasons, its population has been declined abruptly and due to reduced abundance in nature it has already been enlisted as an endangered species both in India and Bangladesh. It has been placed under near threatened category as per IUCN Red List of Threatened Species. Earlier little research has been conducted on feeding and reproductive biology of this fish species; but so far no such consolidated report is available on these aspects. The present report thus aims to consolidate the earlier documented information with pointing out the knowledge gaps on these aspects along with suggesting some strategies which can be considered for the conservation of this fish species in near future.
Ompok pabda通常被称为pabda或黄油鲶鱼,是一种淡水物种,广泛分布在印度,阿富汗,巴基斯坦,孟加拉国和缅甸。在印度和孟加拉国,这种鱼因其美味和高营养价值而备受青睐。它作为观赏鱼的可接受性最近有报道。由于许多原因,它的数量急剧下降,由于自然界中数量减少,它已经在印度和孟加拉国被列为濒危物种。根据世界自然保护联盟濒危物种红色名录,它已被列为近濒危物种。早期对这种鱼类的摄食和繁殖生物学进行的研究很少;但到目前为止,还没有关于这些方面的综合报告。因此,本报告旨在巩固早期的文献资料,指出在这些方面的知识差距,并提出在不久的将来可以考虑保护这种鱼类的一些策略。
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引用次数: 8
pH Characterization of Digestive Enzyme and In vitro Digestibility of Red Bee Shrimp Caridina cantonensis (Decapoda: Atyidae) 广东红蜂对虾消化酶的pH特性及体外消化率(十足目:无翅目)
Pub Date : 2018-02-22 DOI: 10.4172/2155-9546.1000522
Supalug Kattakdad, O. Jintasataporn, W. Worawattanamateekul, S. Chumkam
The characteristics of digestive enzyme from red bee shrimp (Caridina Cantonensis), a tiny ornamental shrimp, were investigated under various pH ranging from 2 to 12. The aim of this study was to find out the specific activities of protease, amylase, lipase, cellulose, trypsin and chymotrypsin and in vitro raw materials by shrimp enzyme digestibility. Fifteen and sixty-day old shrimp were obtained from private farms in Bangkok, Thailand. Protease, lipase, amylase, cellulase, trypsin and chymotrypsin specific activity were determined. The results showed that protease activity had its optimal activity at pH ranging from 8 to 10 and showed the highest activity at pH 10 in both age groups. The alkaline amylase activities were found to be significantly higher than acidic amylase in both age groups. Both acidic and alkaline amylase activity of the 15-day old shrimp was significantly lower than the larger shrimp. The Lipase activity in the 60-day old shrimp showed the highest activity at pH 12, pH 10 and 11, respectively. In the 15-day old shrimp, the lipase activity was stable over a broad pH ranging from 2-12. In the 60-day old shrimp, the cellulase activity showed the highest activity at assay condition pH 7 and decreased when pH levels increased. In the 15-day old shrimp, cellulase activity showed optimal pH at pH 8 and 11. The trypsin and chymotrypsin activity at neutral to weak alkaline condition was greater under acidic condition in both age groups. The activity of 15-day old shrimp was significantly lower than the older shrimp. Regarding in vitro digestibility, the study on protein digestion showed that fish meal was suitable to be a protein source for red bee shrimp. The carbohydrate digestibility showed that wheat flour and maltodextrin were more appropriate as a carbohydrate source for red bee shrimp than cassava, rice bran and Na-alginate. Therefore, it can be concluded that red bee shrimp had diet digestibility in neutral to mid alkaline condition. The animal protein materials are appropriate to be red bee shrimp feed ingredients with low fiber and carbohydrate source.
研究了广东红蜂对虾(Caridina Cantonensis)在2 ~ 12不同pH条件下消化酶的特性。本研究的目的是通过对虾的酶消化率测定蛋白酶、淀粉酶、脂肪酶、纤维素、胰蛋白酶、糜凝胰蛋白酶和体外原料的比活性。15天和60天大的虾来自泰国曼谷的私人养殖场。测定蛋白酶、脂肪酶、淀粉酶、纤维素酶、胰蛋白酶和凝乳胰蛋白酶的比活性。结果表明,蛋白酶活性在pH为8 ~ 10时表现最佳,在pH为10时表现出最高的活性。碱性淀粉酶活性显著高于酸性淀粉酶活性。15日龄对虾的酸性和碱性淀粉酶活性均显著低于较大对虾。60日龄对虾脂肪酶活性在pH为12、pH为10和pH为11时最高。在15日龄虾中,脂肪酶活性在2 ~ 12的较宽pH范围内保持稳定。60日龄虾的纤维素酶活性在pH为7时最高,随着pH的升高而降低。15日龄虾的纤维素酶活性在pH为8和11时表现最佳。中弱碱性条件下胰蛋白酶和凝乳胰蛋白酶活性在酸性条件下均较高。15日龄对虾的活性显著低于老龄对虾。体外消化率方面,蛋白质消化研究表明,鱼粉适合作为红蜂虾的蛋白质来源。碳水化合物的消化率表明,小麦粉和麦芽糊精比木薯、米糠和海藻酸钠更适合作为红蜂虾的碳水化合物来源。由此可见,在中性~中碱性条件下,红蜂对虾具有良好的日粮消化率。动物性蛋白原料适合作为低纤维、低碳水化合物来源的红蜂虾饲料原料。
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引用次数: 1
期刊
Journal of Aquaculture Research and Development
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