Results 81 to 90 of about 24,427 (213)
Abstract figure legend A mouse model of exogenous glucocorticoid (GC) treatment was used to determine (1) if corticosterone induced the same metabolic dysregulation as cortisol, and (2) whether these differences were mediated by the corticosterone‐specific transmembrane exporter Abcc1.
Mhairi A. Paul +9 more
wiley +1 more source
Growth Effects on the Auditory Threshold of Red Sea Bream.
心拍間隔を指標にした魚類の聴覚閾値の測定は近年日本で多く行われているが, その多くは成魚を対象としている。本研究は0歳から2歳魚までの各年齢のマダイを用いて, 音と電気刺激を組み合わせた条件付けを行った後, 放音前と放音後の心拍間隔を比較して, 聴覚閾値を測定した。0,1歳魚の最高感度周波数は300Hzでその閾値音圧はそれぞれ92.4dB, 83.0dB (0dB=1μPa)であった。また2歳魚の最高感度周波数は200HzでIshioka et al (1988)の3歳魚と同様であり, その時の閾値音圧は71.3dBであった。このことからマダイは成長に伴い最高感度周波数が低周波数へ移動するとともに100Hzおよび200Hzの感知能力が向上することがわかった。
Aki Iwashita +4 more
openaire +2 more sources
Nitrite exposure induces intestinal stress in juvenile Eleutheronema tetradactylum, characterized by microbial dysbiosis, metabolic reprogramming, and altered digestive enzyme activities. Integrated metabolomics and microbiota analyses reveal coordinated hostmicrobe responses involving key pathways such as ABC transporters and amino acid metabolism ...
Yue Liu +7 more
wiley +1 more source
ABSTRACT The rapid expansion of cage culture for Nile tilapia (Oreochromis niloticus) in Lake Victoria is central to food security and profitable development in East Africa. Nevertheless, viral conditions affect the sustainability of this sector, with significant imbalances in livelihood, trade and aquaculture adaptability.
Richard S. Komba, Chacha J. Mwita
wiley +1 more source
The price of Peruvian fishmeal is a significant factor that substantially influences the price of fishmeal originating from other areas. However, research on alternative protein sources to fishmeal, to address high cost and insufficient supply of ...
Fumiaki Takakuwa +9 more
doaj +1 more source
The genus Megalocytivirus, represented by red sea bream iridovirus (RSIV), the first identified and one of the best characterized megalocytiviruses, Infectious spleen and kidney necrosis virus (ISKNV), the type species of the genus, and numerous other ...
Kazuhiro Nakajima, Jun Kurita
doaj +1 more source
Protein changes as robust signatures of fish chronic stress: a proteomics approach to fish welfare research [PDF]
Background Aquaculture is a fast-growing industry and therefore welfare and environmental impact have become of utmost importance. Preventing stress associated to common aquaculture practices and optimizing the fish stress response by ...
Cerqueira, Marco +7 more
core
Requirement of red sea bream for dietary trace elements.
Red sea bream, Chrysophrys major, were fed diets with or without supplemental trace elements (AI, Zn, Mn, Cu, Co, and I) over a 90 day period. No significant differences were detected between the two groups in the following determinations: the growth rate, feed efficiency, condition factor, and hepatosomatic index; the hemoglobin content, hematocrit ...
Syuichi SAKAMOTO, Yasuo YONE
openaire +2 more sources
ABSTRACT Marine aquaculture is expanding globally, yet its interactions with surrounding ecosystems remain complex and insufficiently understood. This study reviews the fluxes of energy and nutrients from three major aquaculture systems: finfish cages, suspended bivalves, and seaweed farms and considers their implications for ecosystem functioning and ...
Myriam D. Callier +11 more
wiley +1 more source
ABSTRACT Freshwater habitats are globally threatened by various anthropogenic pressures, resulting in reduced habitat quality and diminished biodiversity. Due to their sensitivity to environmental change, mayflies are commonly used in biomonitoring programs worldwide.
Marina Vilenica +8 more
wiley +1 more source

