Results 21 to 30 of about 56,603 (238)

Identification and characterization of Aeromonas veronii and Vibrio cholerae from naturally diseased red swamp crayfish (Procambarus clarkia)

open access: yesAquaculture Reports, 2023
A large number of red swamp crayfish (Procambarus clarkia) died at a crayfish breeding farm in Tianjin. Two dominant bacterial strains were isolated from the hepatopancreas of diseased crayfish and named PCG1 and PCG2, respectively.
Yufeng Su   +4 more
doaj   +1 more source

Estimate the median lethal dose using the exponential model

open access: yesJournal of Physics: Conference Series, 2021
Abstract In this research, biological assays for testing toxins in the disinfection jungles Roanstar are studied on a group of fish. The dose-response relationship was estimated using an exponential model, applied the MLE method to estimate the parameters of the exponential distribution.
Iden Hasan Hussein, Haneen Jawad Abood
openaire   +1 more source

Lethal Dose of Calcium Bentonite in Wistar Rats

open access: yesAlthea Medical Journal, 2021
Background: Calcium bentonite is a type of clay produced by a devitrification of volcanic ash which is often used as a traditional medicine to absorb toxins and waste products of metabolism.
Dwika Audiyananda   +2 more
doaj   +1 more source

Quantification of the Relative Virulence of White Spot Syndrome Virus (WSSV) in the Penaeid Shrimps Litopenaeus vannamei (Boone, 1931) and Farfantepenaeus duorarum (Burkenroad, 1939) by Quantitative Real Time PCR

open access: yesAnnals of Tropical Research, 2012
The relative virulence of the China isolate of white spot syndrome virus (WSSV-CN) in the penaeid shrimps Litopenaeus vannamei and Farfantepenaeus duorarum, was assessed by a comparison of 7-d median lethal dose (LD50), survival curve, and mean lethal ...
Rey J. dela Calzada, Jeffrey M. Lotz
doaj   +1 more source

Evaluation of lethality and cytotoxic effects induced by Naja ashei (large brown spitting cobra) venom and the envenomation-neutralizing efficacy of selected commercial antivenoms in Kenya

open access: yesToxicon: X, 2022
Neutralization of lethality in mice model at the preclinical level has been established by the World Health Organization as the gold standard for the evaluation of antivenom efficacy.
Ernest Z. Manson   +4 more
doaj   +1 more source

Determination of Median Lethal (LD50) and Growth Reduction (GR50) Dose of Gamma Irradiation for Induced Mutation in Wheat [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2023
The determination of the optimum dose of radiation through its impacts on the growth attributes of the crop is the prerequisite for successful induced mutation breeding.
Sunanda Chakraborty   +4 more
doaj   +1 more source

Artificial Intelligence Calculation of Median Lethal Dose: A Word of Caution [PDF]

open access: yesAsia Pacific Journal of Medical Toxicology
Traditional toxicity studies rely on laboratory animal experimentations to estimate the median lethal dose (LD50) of chemicals such as pesticides and medications.
Fouad Mohammad
doaj   +1 more source

Estimation of median lethal dose of Fenpropathrin in Wistar rat.

open access: yesJournal of Ecophysiology and Occupational Health, 2021
Background: Fenpropathrin, a synthetic pyrethroid (Type I/II) is commonly used as an insecticide in homes and in agriculture. The present study was planned to determine the median lethal dose (LD 50 ) of Fenpropathrin in adult Wistar rats, both male and female.
Inderpal Soni   +4 more
openaire   +2 more sources

Median Lethal Dose (Ld50) Of Electric Current [PDF]

open access: yesCurrent Trends in Biomedical Engineering & Biosciences, 2019
Electric current constitutes potential hazards across the globe. In view of this, literatures were assessed for determination of lethal dose of electric current that would kill 50% of human (LD50), using cardiorespiratory pathological signs. The low LD50 value of electric current (36.5±21.3mA) and voltage (11.0±6.4 V) respectively, suggest very serious
openaire   +1 more source

Contact and Fumigant Activities of Citrus aurantium Essential Oil against the Stable Fly Stomoxys calcitrans (Diptera: Muscidae)

open access: yesPlants, 2022
The stable fly, Stomoxys calcitrans (L.), is a cosmopolitan hematophagous fly of medical and veterinary importance. It is widely considered a major livestock pest that can cause significant economic losses.
Tanasak Changbunjong   +4 more
doaj   +1 more source

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