نتایج جستجو برای: egg external trait

تعداد نتایج: 309364  

1998
DWIGHT A. HENNESSY DAVID L. WIESENTHAL PAUL M. KOHN

State driver stress was measured in both low and high traffic congestion using cellular telephones. The contributions of time urgency, trait driver stress, and hassles were also examined. Drivers showed substantially more state driver stress under high than low congestion. Time urgency made a significant positive contribution to state driver stress at both congestion levels. Trait driver stress...

Afkham Daneshfar, Masoumeh Shojaei, Nastaran Parvizi, Somayehsadat Siadat,

The purpose of present study was investigation of the effect of attentional focus of novice players’ self-statements in basketball free throw practice on their state anxiety in transfer test with spectators’ presence. Therefore, 38 novice females (mean of the age=22 yrs.) who had intermediate trait anxiety were selected randomly by sports competitive anxiety test (SCAT). The participants were a...

Objective: The main objective of this research was estimation of genetic parameters for five consecutive measurements of egg weights in Isfahan fowl using multi trait model and random regression models. Methods: The statistical models included generation-hatch as a fixed effect, weeks of age as a covariate and additive genetic and individual permanent environmental effects as random effects. Th...

Journal: :Veterinary world 2015
Pradeepta Kumar Rath Prasanna Kumar Mishra Bandi Kumar Mallick Nrusingha Charan Behura

AIM The experiment was carried out to evaluate different external and internal egg quality traits and to figure out their mode of inheritance from a set of hierarchically classified data. MATERIALS AND METHODS The data collected from 548 progenies (1 egg from each progeny) of 282 dams mated to 47 sires (1 sire mated to 6 dams) of a White Leghorn flock were used in the present study. Phenotypi...

Journal: :کشاورزی (منتشر نمی شود) 0
مهدی ضرابی استادیار، گروه گیاهپزشکی، دانشکده علوم گیاهی و دامی، پردیس ابوریحان، دانشگاه تهران آصفه موحدیان عطار کارشناس ارشد، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان

some whitefly’s species show host correlated morphological variation. cotton whitefly is a famous one that has a wide variation in its populations and biotypes. this study was conducted to evaluate these variations in varamin area during 2005-6. for this purpose, infested leaves of tomato, cucumber, egg plant and cotton collected from fields. pupal cases mounted in microscopic slides. then thei...

Journal: :Journal of animal science 2010
L A Case M J Kelly S P Miller B J Wood

Genotype x environment (GxE) interactions can reduce the accuracy of a model to predict the performance of an animal and have an undesirable influence if not accounted for when estimating breeding values. Consequently, identification of these GxE is necessary when considering a turkey breeding program. Reranking based on the genetic prediction of turkey egg production, fertility, and hatchabili...

2012
Gerald Grellet-Tinner Vlad Codrea Annelise Folie Alessandra Higa Thierry Smith

BACKGROUND The Cretaceous vertebrate assemblages of Romania are famous for geographically endemic dwarfed dinosaur taxa. We report the first complete egg clutches of a dwarf lithostrotian titanosaur, from Toteşti, Romania, and its reproductive adaptation to the "island effect". METHODOLOGY/FINDINGS The egg clutches were discovered in sequential sedimentary layers of the Maastrichtian Sânpetru...

Journal: :مجله علوم اعصاب شفای خاتم 0
nastaran parvizi department of physical education and sport science, social science faculty, science and research branch of islamic azad university, tehran, iran. afkham daneshfar department of physical education and sport science, physical education faculty, university of alzahra, tehran, iran. masoumeh shojaei department of physical education and sport science, physical education faculty, university of alzahra, tehran, iran. somayehsadat siadat department of educational psychology and counselling, faculty of psychology and education, university of tehran, tehran, iran.

the purpose of present study was investigation of the effect of attentional focus of novice players’ self-statements in basketball free throw practice on their state anxiety in transfer test with spectators’ presence. therefore, 38 novice females (mean of the age=22 yrs.) who had intermediate trait anxiety were selected randomly by sports competitive anxiety test (scat). the participants were a...

Journal: :The Journal of Experimental Biology 2021

ABSTRACT The Charnov–Bull model of differential fitness is often used to explain the evolution and maintenance temperature-dependent sex determination (TSD). Most tests focus on morphological proxies fitness, such as size traits, whereas early life physiological traits that are closely related lifetime might provide a framework for generalizing across taxa. One trait strength early-life immune ...

2007
PETER A. FOLLETT FRAN CALVERT MARY GOLDEN

Nezara viridula (L.) (Hemiptera: Pentatomidae), the southern green stink bug, has body color polymorphisms. N. viridula f. smaragdula is the common green morph, whereas the rare morph N. viridula f. aurantiaca is uniformly orange. Crossing studies were conducted to determine the inheritance of the orange body color trait. Mendelian genetic analysis suggested that orange body color is a simple, ...

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