Results 11 to 20 of about 56,603 (238)

Adenylate cyclase affects the virulence of extraintestinal pathogenic escherichia coli derived from sheep lungs [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi, 2023
Escherichia coli is an important component of the normal bacterial community in humans and animals. However, in recent years, the pathogenicity of some virulent strains to the outside of the intestine has been confirmed in clinical medicine.
Yingjin CHAI, Xiaoxiao GU, Yingni SUN, Jie LI, Xiaolan WANG, Xin HUANG, Xia ZHOU, Mengli HAN, Fagang ZHONG, Xingxing ZHANG, Tongzhong WU   +10 more
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Does Bacillus thuringiensis Affect the Stress and Immune Responses of Rhynchophorus ferrugineus Larvae, Females, and Males in the Same Way?

Insects, 2022
Bacillus thuringiensis (Bt) is considered a potentially useful entomopathogen against red palm weevil (RPW) Rhynchophorus ferrugineus. We compared the effects of Bt on mature larvae, females, and males.
Monica Celi, Debora Russo, Mirella Vazzana, Vincenzo Arizza, Barbara Manachini   +4 more
doaj   +1 more source

Research Note: Evaluation of acute oral toxicity of povidone-iodine in cockerels using the up-and-down procedure

Poultry Science, 2021
Povidone-iodine (Polidine) is a synthetic broad-spectrum antiseptic and being applied topically to treat wounds and prevent their infection. It is however used by poultry farmers, field veterinarians, and other animal health workers with the claim that ...
D. Sani, P.A. Abdu, M. Mamman, K.O. Jolayemi, P.O. Yusuf, A.D. Andamin   +5 more
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Assessing a 6-h endpoint observation time in the lethality neutralization assay used to evaluate the preclinical efficacy of snake antivenoms

Toxicon: X, 2021
The lethality neutralization assay in mice is the gold standard for the evaluation of the preclinical efficacy and specification fulfillment of snake antivenoms. However, owing to the animal suffering involved, this assay is a candidate to be replaced by
Gina Durán, Gabriela Solano, Aarón Gómez, Daniel Cordero, Adriana Sánchez, Mauren Villalta, Melvin Sánchez, Cecilia Díaz, José María Gutiérrez, Guillermo León   +9 more
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Determination of median embryo lethal dose for a velogenic Newcastle disease virus isolated in Sulaimani/Iraq [PDF]

Basrah Journal of Veterinary Research, 2023
 Newcastle disease (ND) is an endemic viral illness in Iraq and has four types: viscerotropic velogenic, neurotropic velogenic, mesogenic, and lentogenic.
Hiewa Dyary, Rozita Husseiun, Nahla Saeed, Peshnyar Rashid   +3 more
doaj   +1 more source

Toxicity studies of drugs and chemicals in animals: An overview [PDF]

Bulgarian Journal of Veterinary Medicine, 2017
Toxicity study is the investigation of either short or long-term toxic effects of a drug or chemical on animals. The toxicity is dose-dependent as asserted by Paracelsus over 500 years ago.
S. Saganuwan
doaj   +1 more source

Determination of pesticide toxicity parameters using probit-analysis

Карантин і захист рослин, 2023
Goal of the research is to consider the main concepts used in the probit-analysis method, the features of its application to determine the toxicity of pesticides, in particular insecticides, acaricides and fungicides. Methods.
O. Shevchuk, O. Vlasova, I. Shevchuk, Yu. Stefkivska   +3 more
doaj   +1 more source

John William Trevan’s concept of Median Lethal Dose (LD50/LC50) – more misused than used

Journal of Pre-Clinical and Clinical Research, 2021
Introduction Median lethal dose (MLD) has been a controversial subject among biologists and animal ethicists since its inception in 1927 by Trevan. Toxicologists use MLD (LD50) as the first step to assess the toxicity of a substance.
Sadasivan Kalathil Pillai, Katsumi Kobayashi, Mathews Michael, Thomson Mathai, Bhavana Sivakumar, Parvathy Sadasivan   +5 more
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Acute and sub-chronic toxicity evaluation of the crude methanolic extract of Diospyros mespiliformis hochst ex a. Dc (ebenaceae) and its fractions

Toxicology Reports, 2020
Diospyros mespiliformis, commonly called Jackal berry or African ebony, belongs to the plant family, Ebenaceae. The roots, barks and leaves have been used traditionally to treat wide varieties of conditions, however, there is limited information and ...
A.A. Ebbo, D. Sani, M.M Suleiman, A. Ahmad, A.Z. Hassan   +4 more
doaj   +1 more source

Acute toxicity data of common agricultural insecticides to Japanese wild bees

Data in Brief, 2023
Although numerous ecotoxicological assessments of European honeybee (Apis mellifera L.) have been performed, Japanese wild bees are less well studied in this regard.
Yugo Seko, Makihiko Ikegami, Tomoyuki Yokoi, Mito Ikemoto, Koichi Goka, Yoshiko Sakamoto   +5 more
doaj   +1 more source