Results 31 to 40 of about 988 (159)
Frontiers in Endocrinology, 2022 Neurohypophysial hormones regulate the reproductive behavior of teleosts; however, their role in the gestation and parturition of ovoviviparous fishes with male pregnancy (syngnathids) remains to be demonstrated.
Huixian Zhang +9 more
doaj +1 more source
Physiology, endocrinology and chemical communication in aggressive behaviour of fishes
Journal of Fish Biology, Volume 98, Issue 5, Page 1217-1233, May 2021., 2021 Abstract Fishes show remarkably diverse aggressive behaviour. Aggression is expressed to secure resources; adjusting aggression levels according to context is key to avoid negative consequences for fitness and survival. Nonetheless, despite its importance, the physiological basis of aggression in fishes is still poorly understood.
Melina Coelho da Silva +3 more
wiley +1 more source
Region specific changes in nonapeptide levels during client fish interactions with allopatric and sympatric cleaner fish. [PDF]
PLoS ONE, 2017 Social relationships are crucially dependent on individual ability to learn and remember ecologically relevant cues. However, the way animals recognize cues before engaging in any social interaction and how their response is regulated by brain ...
Marta C Soares +7 more
doaj +1 more source
Frontiers in Animal Science, 2022 The risk of climate change is increasing year by year and changing environmental temperatures will increasingly have effects on productivity in the poultry industry.
Yoshimitsu Ouchi +3 more
doaj +1 more source
Divergent neural nodes are species- and hormone-dependent in the brood parasitic brain. [PDF]
Genes Brain BehavMesotocin (MT, homologous to oxytocin in mammals) enhances natural preferences for egg‐related stimuli in brood‐parasitic and parental females alike. In the brain, MT treatment was associated with changes in gene expression in the bed nucleus of the stria terminalis and the preoptic area in brood parasitic females. Abstract Avian brood parasitism is an
Duque FG +4 more
europepmc +2 more sources
Frontiers in Endocrinology, 2023 The dual aquaporin (Aqp1ab1/Aqp1ab2)-mediated hydration of marine teleost eggs, which occurs during oocyte meiosis resumption (maturation), is considered a key adaptation underpinning their evolutionary success in the oceans.
Alba Ferré +6 more
doaj +1 more source
Frontiers in Physiology, 2018 The hypothalamus-pituitary-interrenal (HPI) and hypothalamus-sympathetic-chromaffin cell (HSC) axes are involved in the regulation of the stress response in teleost.
Arleta K. Skrzynska +9 more
doaj +1 more source
Frontiers in Behavioral Neuroscience, 2018 Dominant-subordinate status emerges from agonistic encounters. The weakly electric fish, Gymnotus omarorum, displays a clear-cut example of non-breeding territorial aggression.
Rossana Perrone +2 more
doaj +1 more source
Arginine vasotocin receptor in the vagina of the oviduct of the hen
Poultry Science, 1998 The presence of receptor for arginine vasotocin (AVT) in the vagina of the oviduct of the hen was demonstrated by the use of radioligand binding assays on membrane fractions of the tissue. The binding to [125I]AVT was highly competitive with unlabeled AVT. Scatchard analysis revealed that the binding sites are of a single class.
T, Takahashi +3 more
openaire +2 more sources
Angiotensin-(1-7) increases osmotic water permeability in isolated toad skin
Brazilian Journal of Medical and Biological Research, 2000 Angiotensin-(1-7) (Ang-(1-7)) increased osmotic water permeability in the isolated toad skin, a tissue with functional properties similar to those of the distal mammalian nephron. Concentrations of 0.1 to 10 µM were effective, with a peak at 20 min. This
J.C. Santos +3 more
doaj +1 more source