Results 81 to 90 of about 22,388 (218)

Increasing Quantity and Internal Quality of Japanese Quail (Coturnix coturnix japonica) Eggs by Shooting Laser Puncture at Reproductive Acupuncture Points

open access: yesVeterinary Medicine International, 2021
This study aims to determine the effect of laser puncture shooting on the reproductive acupuncture points of Japanese quail (Coturnix coturnix japonica) egg quantity (egg production) and internal egg quality (Haugh unit, yolk index, and yolk colour ...
Sunaryo Hadi Warsito   +5 more
doaj   +1 more source

Assessment of long-range correlation in animal behaviour time series: the temporal pattern of locomotor activity of Japanese quail (Coturnix coturnix) and mosquito larva (Culex quinquefasciatus) [PDF]

open access: yes, 2013
The aim of this study was to evaluate the performance of a classical method of fractal analysis, Detrended Fluctuation Analysis (DFA), in the analysis of the dynamics of animal behavior time series. In order to correctly use DFA to assess the presence of
Alados   +48 more
core   +3 more sources

Silent Spring - the lost call [PDF]

open access: yes, 2008
The "silence" in Rachel Carson's Silent Spring1 alludes to the demise of bird populations through reproductive problems and death resulting from exposure to the pesticides of that time, many of which are endocrine active.
Mary Ann Ottinger, Michael J. Quinn
core   +1 more source

Testicular growth and comb and wattles development in three Italian chicken genotypes reared under free range conditions [PDF]

open access: yes, 2015
Male chickens belonging to three Italian purebreds \u2013 Ermellinata di Rovigo (ER), Robusta lionata (RL) and Robusta maculata (RM) \u2013 were studied. All the birds were reared under the same rearing conditions (from May until autumn).
DE FASSI NEGRELLI RIZZI, Chiara   +1 more
core   +1 more source

Pendulous Crop in Japanese Quail (Coturnix coturnix japonica)

open access: yesPoultry Science, 1974
Abstract Quail chicks from a line selected for growth on a low protein (17.9%) glucose monohydrate-soybean meal diet showed a high incidence, 44.0%, of pendulous crop as compared to 11.8% in the control line fed the same ration. Substituting sucrose for glucose monohydrate did not change the incidence of pendulous crop in either the control or the ...
K, al-Soudi, P E, Bernier, G H, Arscott
openaire   +2 more sources

Characteristics and Behavior of Guineafowl and Domesticated Chicken Hybrids [PDF]

open access: yes, 1976
The description, behavior, and morphologic measurements are presented for two hybrid crosses of domesticated chicken and guineafowl. The ease at which gallinaceous birds hybridize might warrant a closer look at the classification system.
Hanebrink, Earl L.
core   +2 more sources

Interrelation of Different Lipid Sources and Tannins on the Performance and Egg Quality of Japanese Quails

open access: yesEuropean Journal of Lipid Science and Technology, Volume 128, Issue 4, April 2026.
Dietary fats can influence egg production and egg nutritional quality in quails. In this study, different lipid sources were evaluated in combination with hydrolyzable tannins in diets for Japanese quails. The results showed that specific fat sources can improve production performance and modify the fatty acid composition and antioxidant capacity of ...
João Ricardo Rodrigues Ferreira Vieira   +10 more
wiley   +1 more source

An in vitro assay for neural crest cell migration through the somites [PDF]

open access: yes, 1986
Neural crest cells in the trunk of the avian embryo come into contact with the somites and neural tube during the course of their migration. However, the relationship between the somites and the early migratory routes followed by these cells is not yet ...
Bronner-Fraser, Marianne   +1 more
core  

Parental care and bird embryonic metabolism: A comparison between uniparentally incubating Silver‐throated Tits and biparentally incubating Black‐throated Tits

open access: yesFunctional Ecology, Volume 40, Issue 4, Page 800-815, April 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu   +6 more
wiley   +1 more source

Removing exogenous information using pedigree data

open access: yes, 2011
Management of certain populations requires the preservation of its pure genetic background. When, for different reasons, undesired alleles are introduced, the original genetic conformation must be recovered.
A Caballero   +31 more
core   +2 more sources

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