Biochemical Changes in Freshwater Prawn Macrobrachium rosenbergii During Larval Development     

Paymon  Roustaian Mohd Salleh  Kamarudin Hishamuddin Bin  Omar Che Roos  Saad Mansor Haji  Ahmad 《Journal of the World Aquaculture Society》2001,32(1):53-59

Abstract.— Quantitative changes in the protein, lipid and carbohydrate were studied in the early larval stages of developing freshwater prawn Macrobrachium rosenbergii reared under fed and starved conditions to understand the relative importance of these nutrients in energy metabolism of the growing larvae. Larvae obtained from several females were stocked into three 250-L tanks at a density of 30 larvae/L. The feeding regime consisted of newly hatched Artemia nauplii. Protein was always the major organic constituent followed by lipids and then carbohydrates of both fed and starved larvae. Protein levels of both fed and starved larvae increased during development, suggesting an important role in morphogenesis. The decline of lipid during the larval growth that was more rapid for starved larvae, suggests a probable utilization of lipid as the major metabolic source of energy. Carbohydrates formed less than 5 and 2.4% of the larval dry weight of fed and starved larvae, respectively, suggesting their limited role in larval metabolism.  相似文献   

Mango seed kernels as an energy source for chicks1     

H. A. El Alaily  A. Anwar  I. El Banna 《British poultry science》1976,17(2):129-133

1. Chemical analysis of a sample of ground mango seed kernels (MSK) revealed the following percentage composition: dry matter, 91.55; ash, 1.97; protein, 6.74; ether extract, 12.53; fibre, 1.30; nitrogen‐free extract, 77.46.

2. The ME content of MSK was 1.82 kcal/g.

3. The percentage retention of the crude fat content of MSK was only 3.38%.

4. Substituting MSK for corn at 10 or 20% led to reduced growth rate and poorer food consumption and a reduced efficiency of food utilisation in the period 0 to 4 weeks.  相似文献   

Nutritional significance of amino acids,vitamins and minerals as nutraceuticals in poultry production and health – a comprehensive review     

Mahmoud Alagawany  Shaaban S. Elnesr  Mayada R. Farag  Ruchi Tiwari  Mohd. Iqbal Yatoo  Kumaragurubaran Karthik  Izabela Michalak  Kuldeep Dhama 《The Veterinary quarterly》2021,41(1):1

Nutraceuticals have gained immense importance in poultry science recently considering the nutritional and beneficial health effects of their constituents. Besides providing nutritional requirements to birds, nutraceuticals have beneficial pharmacological effects, for example, they help in establishing normal physiological health status, prevent diseases and thereby improve production performance. Nutraceuticals include amino acids, vitamins, minerals, enzymes, etc. which are important for preventing oxidative stress, regulating the immune response and maintaining normal physiological, biochemical and homeostatic mechanisms. Nutraceuticals help in supplying nutrients in balanced amounts for supporting the optimal growth performance in modern poultry flocks, and as a dietary supplement can reduce the use of antibiotics. The application of antibiotic growth enhancers in poultry leads to the propagation of antibiotic-resistant microbes and drug residues; therefore, they have been restricted in many countries. Thus, there is a demand for natural feed additives that lead to the same growth enhancement without affecting the health. Nutraceuticals substances have an essential role in the development of the animals’ normal physiological functions and in protecting them against infectious diseases. In this review, the uses of amino acids, vitamins and minerals as well as their mode of action in growth promotion and elevation of immune system are discussed.  相似文献   

Effect of an immunomodulator on the efficacy of an attenuated vaccine against avian pneumovirus in turkeys     

Rautenschlein S  Sheikh AM  Patnayak DP  Miller RL  Sharma JM  Goyal SM 《Avian diseases》2002,46(3):555-561

Since 1997, avian pneumovirus (APV) has caused estimated annual losses of $15 million to the Minnesota turkey industry. In order to develop an attenuated live vaccine against APV, we serially passaged a Minnesota isolate of APV (APV/MN/turkey/1-a/97) in vitro in cell cultures for 41 passages. Laboratory experiments with this high-passage virus (P41) indicated that the attenuated virus provided immunogenic protection to turkeys against challenge with virulent APV, although some birds showed mild to moderate dinical signs after inoculation. To reduce the residual pathogenicity of P41, while maintaining its immunogenicity, we decided to vaccinate turkeys with P41 in the presence of an immunomodulator, S-28828 (1-n-butyl-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-4-amine-hydrochloride), which is a potent cytokine inducer. The combined inoculation of S-28828 (5 mg/kg body weight) and P41 resulted in a significant reduction in the incidence of virus-induced clinical signs in comparison with birds that received P41 without immunomodulator (P < 0.05). Only 17% of birds inoculated with S-28828 + APV P41 showed mild respiratory symptoms at 5 days postinoculation as compared with 46% of the vaccinated turkeys that did not receive S-28828. Vaccination with either P41 or with P41 + S-28828 protected turkeys against dinical signs and viral replication after challenge with virulent APV. These results indicate that immunomodulators, such as S-28828, may act as good vaccine adjuvants that can reduce the pathogenicity but maintain the immunogenicity of partially attenuated vaccines.  相似文献   

乌鲁木齐地区三种不同景观鸟类群落结构初报   总被引：1，自引：0，他引：1  

艾尼瓦尔  艾来提米 《干旱区研究》1998,15(1):78-81

作者于１９９４年３－６月在乌鲁木齐地区,对三各不同景观的鸟类群落进行了调查,可划分为３类群落：干旱荒漠为角百灵＋沙群落（群落Ａ）;干旱草原为角百灵＋领岩鹨群落（群落Ｂ）;干旱灌丛云雀＋漠莺＋靴篱莺群落（群落Ｃ）群落的物种多样性以群落Ｃ最高（１．８８６７）,次为群落Ｂ（１．８８３７）,群落Ａ的多样性最低（１．５２１２）种的多样性与生态环境的差异有关。  相似文献   

Wheat Seed Presoaking for Improved Germination     

Shahbaz Ahmad  Muhammad Anwar  Hameed Ullah 《Journal of Agronomy and Crop Science》1998,181(2):125-127

Seed presoaking improves wheat germination under marginal moisture conditions. The duration of seed presoaking was studied at The University of Arid Agriculture, Rawalpindi, using 10 wheat varieties. Seed presoaking beyond 12 h does not improve germination further, and beyond 21 h, germination rate is drastically reduced.  相似文献   

cDNA cloning and complete primary structures of myosin heavy chains from brushtooth lizardfish Saurida undosquamis and wanieso lizardfish S. wanieso fast skeletal muscles     

Mohammed Anwar Hossain  Daisuke Ikeda  Akira Nomura  Hideto Fukushima  Shugo Watabe 《Fisheries Science》2008,74(4):921-934

ABSTRACT:   The complete cDNA sequences encoding predominant types of myosin heavy chain (MYH) in the fast skeletal muscle were determined for brushtooth lizardfish Saurida undosquamis and wanieso lizardfish S. wanieso , which are used as materials for preparing high-quality surimi-based products. The cDNA consisted of 5973 and 5987 bp, respectively, and both encompassed an open reading frame encoding a polypeptide of 1936 amino acid residues. Brushtooth and wanieso lizardfish MYH showed the amino acid sequence identity of 92–93% to white croaker MYH, which was higher than that of 90% to walleye pollack MYH. The putative binding sites for ATP, actin, and regulatory and essential light chains in the subfragment-1 region of brushtooth lizardfish MYH exhibited a high identity with white croaker counterparts as well as the sequences of subfragment-2 and light meromyosin. In contrast, phylogenetic tree, constructed by the neighbor-joining method based on mitochondrial 16S rRNA gene, revealed that the two lizardfish species formed a cluster with walleye pollack, which was paraphyletic with white croaker. Therefore, a good reputation for lizardfish and white croaker to have a high thermal-gel forming ability seemed to be reflected by MYH rather than biological similarity as revealed by the mitochondrial 16S rRNA gene.  相似文献   

Comparison of effectiveness of introduced barn owls,Tyto javanica javanica,and rodenticide treatments on rat control in oil palm plantations     

Zainal Abidin  Cik Mohd Rizuan  Mohd Noor  Hafidzi  Hamid  Noor Hisham  Ravindran  Shakinah  Puan  Chong Leong  Kasim  Azhar  Salim  Hasber 《Journal of pest science》2022,95(2):1009-1022

Journal of Pest Science - In Peninsular Malaysia, barn owls (Tyto javanica javanica) have been utilized as biological control of rats since the 1960s. In this study, the impact of introduced barn...  相似文献   

The Potential for Replacement of Live Feeds in Larval Culture   总被引：6，自引：0，他引：6  

David A.  Jones  Mohd. Salleh  Kamarudin Lewis Le  Vay 《Journal of the World Aquaculture Society》1993,24(2):199-210

  相似文献   

Quality aspect of fish sauce prepared from underutilized fatty Japanese anchovy and rabbit fish     

Kazufumi?OsakoEmail author  Mohammed?Anwar?Hossain  Koichi?Kuwahara  Akira?Okamoto  Atsuko?Yamaguchi  Yukinori?Nozaki 《Fisheries Science》2005,71(6):1347-1355

ABSTRACT:   To explore the potential utility of underutilized fish in the fish sauce industry, fish sauces were prepared from both raw and heat-induced meat of Japanese anchovy Engraulis japonica and rabbit fish Siganus fuscescens using wheat malt, and their quality aspects and sensory properties were assessed. Proximate composition of the fish meat represents protein as the major component (16.0–17.8%), other than moisture. Analyses of free amino acids, peptides including oligopeptides, and organic acids contents in fish sauces revealed suitability of both raw and heat-induced meat of the selected species in commercial fish sauce production. The variations in taste of raw meat fish sauces were species-specific, but the taste of fish sauces from heat-induced meat were similar.  相似文献