نتایج جستجو برای: digestive enzyme activity

تعداد نتایج: 1301104  

Akbary, P., Fereidouni , M.S., Shoghi, M.,

In present study the effect of dietary inclusion of equal amounts of four traditional medicines; Matricaria chamomilla L, Zataria multiflora L, Mentha piperita L and Terminalia chebulo L on growth performance and digestive enzymes activity in Litopenaeus vannamei was investigated. Two diets, including a control basal diet and an experimental diet with 30 g kg-1 herbal mixture supplementation we...

2014
Michaela Libiaková Kristýna Floková Ondřej Novák L'udmila Slováková Andrej Pavlovič

The trap of the carnivorous plant Venus flytrap (Dionaea muscipula) catches prey by very rapid closure of its modified leaves. After the rapid closure secures the prey, repeated mechanical stimulation of trigger hairs by struggling prey and the generation of action potentials (APs) result in secretion of digestive fluid. Once the prey's movement stops, the secretion is maintained by chemical st...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2017
F B Candiotto A C V Freitas-Júnior R C A Neri R S Bezerra R V Rodrigues L A Sampaio M B Tesser

Knowledge of specific enzyme activity, along with animal habits and digestive capacity is essential in formulating an appropriate diet for any species. In this study, we evaluated and characterized the activity of digestive enzymes present in the liver, intestine, and stomach of Paralichthys orbignyanus. The effects of pH and temperature on enzyme activity were also evaluated via the use of spe...

2016
Kwasi M Connor Aaron Sung Nathan S Garcia Andrew Y Gracey Donovan P German

The intertidal mussel Mytilus californianus is a critical foundation species that is exposed to fluctuations in the environment along tidal- and wave-exposure gradients. We investigated feeding and digestion in mussels under laboratory conditions and across environmental gradients in the field. We assessed whether mussels adopt a rate-maximization (higher ingestion and lower assimilation) or a ...

Journal: :Gut 1973
M C Roberts D E Kidder F W Hill

Two enzymes having lactase activity are present in the equine small intestine. The first, the digestive enzyme, neutral beta-galactosidase, declines in activity from birth to three years, disappearing completely between 3 and 4 years of age. The other, the soluble lysosomal enzyme, acid beta-galactosidase, having affinity for lactose and a synthetic beta-galactoside, shows a decrease in activit...

Journal: :iranian biomedical journal 0
آذین نوروزی azin nowrouzi خدیجه مقرازی khadijeh meghrazi تقی گل محمدی taghi golmohammadi ابوالفضل گلستانی abolfazl golestani شهین احمدیان shahin ahmadian مهشید شفیع زاده mahshid shafiezadeh زهرا شجری

background: we aimed at evaluating the toxicity effects of low (subtoxic) concentrations of silver nanoparticles (agnp, 5-10 nm) in human hepatoblastoma (hepg2) cell line after and during a period of about one month. methods: xtt and mtt assays were used to draw a dose-response curve ic50 (half maximal inhibitory concentration) value of the agnp on hepg2 cells was calculated to be 2.75-3.0 mg/l...

Journal: :journal of agricultural science and technology 2014
n memarizadeh p. zamani r. h. sajedi m. ghadamyari

application of chemical pesticides has increased significantly worldwide and has raised serious concerns about environmental pollutions. one of the encouraging trends to minimize pesticide risk is production of resistant plants containing toxic proteins against insect pests. considering the importance of purification and characterization of digestive enzymes in the production of resistant plant...

2016
Day

In culture operations, the efficiency of a feed in promoting maximum growth in animal depends not only on its nutritive profile, but also on the animal’s inherent ability to consume, digest, absorb and metabolize the nutrients from the feed. Nutrient utilization in aquatic animals depends on the activity of their digestive enzymes [1,2]. Digestive processes in fish are less known than in animal...

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