Results 161 to 170 of about 29,818 (258)

Physiological Studies on Gonadal Maturation of Fishes-I

NIPPON SUISAN GAKKAISHI, 1973
Katsumi AIDA, Phan-Van- NGAN, Takashi HIBIYA   +2 more
openaire   +2 more sources

Gonadal maturation and spawning of Penaeus semisulcatus (Penaeidae: Decapoda)

, 2019
Bu çalışmada, gözsapı kesiminin Penaeus semisulcatus’un gonad olgunlaştırma, kabuk değiştirme ve yumurtlaması üzerine etkisi arastırılmıştır. Tümü bireysel olarak markalanan 12 adet gözsapı kesilen ve 12 adet gözsapı kesilmeyen dişi ile 12 adet erkek 12 tonluk olgunlaştırma tankına stoklanmıştır.
Mevlüt Aktaş, Metin Kumlu
openaire   +2 more sources

The effects of temperature on photoperiodic responses: implications for climate change [PDF]

, 2010
Dawson, Alistair, Visser, Marcel E.
core   +2 more sources

Advancing fetal autopsy in cases of maceration: Underwater dissection technique and its forensic relevance

Journal of Forensic Sciences, EarlyView.
Abstract Fetal autopsy remains essential for determining the cause of intrauterine death and for supporting clinical, genetic, and forensic evaluations. However, in cases of advanced maceration, autolysis severely compromises tissue integrity, often preventing adequate identification of anatomical structures and limiting the diagnostic and medico‐legal
Francesca Buffelli, Sharon Duzioni, Valerio Gaetano Vellone, Alessandro Bonsignore, Ezio Fulcheri   +4 more
wiley   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

Insect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami, Ian Orchard, Angela B. Lange   +2 more
wiley   +1 more source

INSIGHTS INTO THE EVOLUTION OF DOPAMINERGIC CONTROL OF REPRODUCTION: THE BRAIN-PITUITARY-GONADAL AXIS OF THE SMALL-SPOTTED CATSHARK SCYLIORHINUS CANICULA

European Journal of Histochemistry
In all vertebrates, reproduction is controlled by the brain–pituitary- gonadal (BPG) axis, which integrates environmental cues such as photoperiod and temperature with neural and gonadal functions to regulate gametogenesis and gamete maturation.
doaj   +1 more source

Can Fecal T3 Metabolite Level Fluctuations in European Roe Deer (Capreolus capreolus) Give Insights on Body Condition and Thermal Stress?

Integrative Zoology, EarlyView.
European roe deer fecal samples were assayed to investigate the potential fluctuations of fecal thyroid hormone metabolites (FTMs) in response to environmental (e.g., the temperature, local densities) and individual (e.g., sex, age, body, and nutritional conditions) variables.
Valeria Pasciu, Roberta Chirichella, Francesca D. Sotgiu, Maria Nieddu, Elena Baralla, Marco Apollonio, Fiammetta Berlinguer   +6 more
wiley   +1 more source

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

Integrative Zoology, EarlyView.
We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao, Suying Ma, Shiyi Zhang, Fan Bai, Lingyao Gan, Wenjing Tao, Feilong Wang, Deshou Wang, Lina Sun   +8 more
wiley   +1 more source

Gonadal Development–Related Genes and a Male‐Specific Genetic Marker Identified in the Endangered Sichuan Taimen (Hucho bleekeri)

Integrative Zoology, EarlyView.
Integrated transcriptomic and proteomic analyses were used to validate gonadal development–related genes and to identify a sex‐specific molecular marker in Hucho bleekeri. ABSTRACT Sex determination and differentiation represent fundamental topics in reproductive biology. Sichuan taimen (Hucho bleekeri), a first‐class national protected fish species in
Qinyao Wei, Hua Li, Yeyu Chen, Huanchao Yang, Jun Du, Zhaobin Song   +5 more
wiley   +1 more source

Dietary protein requirements of male and female broodstock: an economic factor for increased sustainability of private catfish hatcheries [PDF]

, 2004
Madu, C.T., Okwuego, C.C., Wonah, C.
core