Results 31 to 40 of about 10,107 (221)
Emerging Pathogen in Wild Amphibians and Frogs (Rana catesbeiana) Farmed for International Trade
Emerging Infectious Diseases, 2003 Chytridiomycosis is an emerging disease responsible for global decline and extinction of amphibians. We report the causative agent, Batrachochytrium dendrobatidis, in North American bullfrogs (Rana catesbeiana) farmed for the international restaurant ...
Rolando Mazzoni +5 more
doaj +1 more source
Perichordal Vertebral Column Formation in Rana kobai. [PDF]
J MorpholIn contrast to the previous study, centrum formation begins with a pair of ossification centers at the base of neural arches in Rana. At the early stage of intervertebral disc formation, a wedge‐like cartilage domain is observed posteroventral to the centrum. Evolutionary implications are discussed based on these observations.
Takahashi Y +5 more
europepmc +2 more sources
Abnormal Limb Development in Rana catesbeiana
Experimental Biology and Medicine, 1965 SummaryPreliminary evidence has been presented which indicates that in the larval anuran, Rana catesbeiana, stimulation of the anterior limb bud field by cutting leads to the formation of supernumerary limbs. The abnormal appendages were conveniently categorized as duplicate or triplicate structures.
openaire +2 more sources
Flexibility within the middle ears of vertebrates [PDF]
, 2012 Introduction and aims: Tympanic middle ears have evolved multiple times independently among vertebrates, and share common features. We review flexibility within tympanic middle ears and consider its physiological and clinical implications.
Baird +36 more
core +1 more source
Pesquisa Agropecuária Brasileira, 2005 Este trabalho teve por objetivo avaliar o efeito de três rações experimentais com diferentes níveis protéicos (33,6%, 26,6% e 22,5%), comparadas a uma ração comercial (46,5%), no desempenho e crescimento heterogêneo de girinos de rã-touro (Rana ...
José Milton Barbosa +2 more
doaj +1 more source
, 2013 Central CO2chemosensitivity is crucial for all air-breathing vertebrates and raises the question of itsrole in ventilatory rhythmogenesis. In this study, neurograms of ventilatory motor outputs recorded infacial nerve of premetamorphic and ...
Fiamma, Marie-Noëlle +5 more
core +3 more sources
Ciência Rural, 2005 Objetivou-se avaliar o efeito do sexo e do uso de quatro rações comerciais extrusadas (R1, R2, R3 e R4) e uma ração peletizada (R5) sobre o rendimento de carcaça e aproveitamento de subprodutos da ranicultura, após 56 dias de experimentação.
Alex Poeta Casali +2 more
doaj +1 more source
Non-O1/O139 Vibrio cholerae causes severe intestinal disease in bullfrogs (Rana catesbeiana)
Animal Diseases, 2023 Bullfrogs (Rana catesbeiana) are amphibians with high economic value, but in recent years, bullfrog farming has encountered serious threats of bacterial diseases, and the “bullfrog economy” is facing a continuous decline.
Wenyu Liao +9 more
doaj +1 more source
Population Responses of Wood Frog (Rana Sylvatica) Tadpoles to Overwintered Bullfrog (Rana Catesbeiana) Tadpoles [PDF]
, 2007 A fundamental goal in ecology is to understand how environmental variation influences the distribution of individuals within a population. In this study, we used laboratory experiments to examine the population responses of sympatric Wood Frog (Rana ...
Mullin, Stephen J., Walston, Leroy J.
core +2 more sources
Journal of the World Aquaculture Society, Volume 57, Issue 2, April 2026.Abstract The NLRP3 inflammasome is essential for innate immunity against pathogens, yet its function in amphibians remains poorly understood. Here, we identified and cloned two novel isoforms of NLRP3 from the American bullfrog (Aquarana catesbeiana), designated AcNLRP3 X1 and AcNLRP3 X2, with open reading frames of 2397 bp (798 aa) and 2874 bp (957 aa)
Peikui Yang +8 more
wiley +1 more source