Results 11 to 20 of about 4,407 (178)

Aquaculture enclosures relate to the establishment of feral populations of introduced species. [PDF]

open access: yesPLoS ONE, 2009
Many species introduced by humans for social and economic benefits have invaded new ranges by escaping from captivity. Such invasive species can negatively affect biodiversity and economies.
Xuan Liu, Yiming Li
doaj   +1 more source

Occurrence, Profile, and Potential Risks of Novel and Legacy Polyfluoroalkyl Substances in Bullfrogs: Pilot Study in an Intensive Aquaculture Region, China

open access: yesFrontiers in Environmental Science, 2021
Per- and polyfluoroalkyl substances (PFASs) have captured worldwide attention due to their persistent and bioaccumulative characteristics. The bullfrog is a highly nutritious and edible aquatic product, but the PFAS accumulation characteristics of ...
Qiongping Sun   +11 more
doaj   +1 more source

Comparison of the Nutritional Composition of Bullfrog Meat from Different Parts of the Animal

open access: yesFood Science of Animal Resources, 2021
The objective of this study was to evaluate the nutritional content of bullfrog meat from different parts of the animal, including fore-chest, thigh and calf.
Yanli Zhu   +7 more
doaj   +1 more source

Non-O1/O139 Vibrio cholerae causes severe intestinal disease in bullfrogs (Rana catesbeiana)

open access: yesAnimal 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

First records of the American bullfrog Lithobates catesbeianus (Shaw, 1802) in Slovenia

open access: yesNatura Sloveniae, 2016
The American bullfrog Lithobates catesbeianus is one of the 100 worst alien species in the world. It has been introduced to several European countries. During our field search activities in May 2014 and June 2015, a male bullfrog advertisement call was ...
Nino Kirbiš   +6 more
doaj   +1 more source

Evaluation of the semen characteistics after induced spermiation in the bullfrog Lithobates catesbeianus - doi: 10.4025/actascibiolsci.v35i3.14780

open access: yesActa Scientiarum: Biological Sciences, 2013
Evaluation of semen characteristics after hormonal induction of the bullfrog could provide valuable information on the gametes of this species, which may be useful for projects related to artificial fertilization, animal improvement, and cryopreservation.
Marcelo Maia Pereira   +5 more
doaj   +1 more source

Trophic niche differentiation between invasive and native frog species in urban wetlands of Kunming, China

open access: yesGlobal Ecology and Conservation, 2022
Non-native species often proliferate and become invasive in urban ecosystems. Knowing the interactions between the overlapping trophic niches of invasive and native species is imperative, and answering this question of how they succeed in these ...
QiSheng Li   +6 more
doaj   +1 more source

Climate change and American Bullfrog invasion: what could we expect in South America? [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Biological invasion and climate change pose challenges to biodiversity conservation in the 21(st) century. Invasive species modify ecosystem structure and functioning and climatic changes are likely to produce invasive species' range shifts ...
Javier Nori   +4 more
doaj   +1 more source

Alterações histopatológicas em girinos de rã-touro alimentados com rações comerciais de diferentes níveis protéicos Histopathological alterations in bullfrog tadpoles fed commercial diets with three levels of crude protein

open access: yesRevista Brasileira de Zootecnia, 2008
Realizaram-se necropsia e exame histopatológico de girinos de rã-touro (Rana catesbeiana) alimentados com rações comerciais formuladas com 32, 36, 45 ou 55% de proteína bruta (PB) visando estabelecer a relação entre o nível de proteína bruta da ração e a
José Teixeira de Seixas Filho   +5 more
doaj   +1 more source

Productive diagnosis offrog culture in the state of Rio de Janeiro

open access: yesRevista Brasileira de Saúde e Produção Animal, 2023
Brazilian frog farming has a history of production that began in the state of Rio de Janeiro in 1935. Over the years, this activity has spread throughout Brazil, with technological advances that have improved the productivity and health of enterprises ...
Pedro Vieira ESTEVES   +3 more
doaj   +1 more source

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