Results 41 to 50 of about 4,529 (184)

Impact of climate on the migration phenology of the endangered Little Bustard in Spain

open access: yesIbis, EarlyView.
The phenology of animals is closely tied to seasonal climatic patterns so, by altering temperature and precipitation regimes, climate change disrupts the phenological cycles of species. More specifically, the influence of rising temperatures on the phenology of bird migration has been long studied.
Irene Hernández‐Téllez   +6 more
wiley   +1 more source

Avaliação de características de desempenho e de carcaça de codornas de corte por meio da análise de componentes principais Evaluation of production and carcass traits of meat - type quails by principal components analysis

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2009
Foram utilizados dados de 288 codornas de corte (Coturnix coturnix coturnix) para avaliar a possibilidade de resumir a informação contida no complexo de variáveis originais, eliminando-se variáveis inexpressivas por meio da técnica de componentes ...
C.D.S. Leite   +6 more
doaj   +1 more source

Comparison of physical meat quality properties of young and spent female quail of different genetic stock [PDF]

open access: yesEurasian Journal of Veterinary Sciences, 2022
Aim: This study was carried out to investigate the physical meat quality properties of young and spent female quail of different genetic lines. Materials and Methods: A total of 80 random samples of fresh breast and leg meat of young and spent female ...
Metin Petek   +2 more
doaj  

Courtship display behavior influences tail myology in Centrocercus minimus (Gunnison sage‐grouse)

open access: yesJournal of Anatomy, EarlyView.
Courtship displays among birds are widespread, particularly those which incorporate raised tail feathers for extended periods of time. The Gunnison sage‐grouse (Centrocercus minimus) is such a species. When we compared the tail muscles of the sage‐grouse to birds which do not engage in erected tail fan postures, both morphology proportional mass ...
Alexander D. Clark   +3 more
wiley   +1 more source

Níveis de proteína bruta e energia metabolizável em uma linhagem de codorna de corte =Protein and metabolizable energy on a meat quail line [PDF]

open access: yesActa Scientiarum: Animal Sciences, 2012
O objetivo deste trabalho foi estabelecer os níveis de proteína bruta e energia metabolizável para melhor desempenho em ganho de peso, peso corporal, consumo de ração e conversão alimentar em codornas de corte.
Flaviana Miranda Gonçalves   +5 more
doaj  

Physical Quality of the First Egg of Japanese Quail (Coturnix japonica L.) after Given Liquid Herbal Concoction

open access: yesJurnal Mangifera Edu, 2021
This study aims to determine the first egg's physical quality in Coturnix japonica L. after being given a liquid. The study is an experimental study with a Completely Randomized Design.
Hasan Basri, Meilinda Pahriana Sulastri
doaj   +1 more source

The pectoralis muscle orientation as an indicator of the modes of wing‐propelled locomotion in birds

open access: yesJournal of Anatomy, EarlyView.
The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Takumi Akeda, Shin‐ichi Fujiwara
wiley   +1 more source

Graded Levels of Dietary Valine in Protein‐Restricted Diets: Effects on Reproductive Performance and Tissue Morphology in Laying Japanese Quail

open access: yesVeterinary Medicine and Science, Volume 12, Issue 5, September 2026.
Dietary supplementation of 0.95% valine in protein‐restricted diets optimizes reproductive performance, egg quality, and ovarian follicular development in laying Japanese quail. Higher levels do not provide additional benefits and may increase hepatic metabolic demand, highlighting the importance of precise amino acid formulation in low‐protein feeding
Morteza Pashaei Jalal   +3 more
wiley   +1 more source

Prolactin and Triiodothyronine Modulate Seasonal Variation in Brown Adipose Tissue in Djungarian Hamsters

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 7, Page 710-718, August 2026.
ABSTRACT Seasonal photoperiodic cycles regulate energy rheostasis in many animals. Brown adipose tissue (BAT) and the liver are key metabolic organs that show remarkable plasticity in response to photoperiodic conditions. Prolactin (PRL) and thyroid hormones are endocrine signals that transmit neural‐derived photoperiodic time measurement encoding to ...
Sayantan Sur   +5 more
wiley   +1 more source

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

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