نتایج جستجو برای: respectively direct additive genetic correlations were positive and high

تعداد نتایج: 17263333  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک 1388

the world wide web becomes very popular recently and plays an influential role in english learning. by burgeoning role of source-based writing as partial fulfillment of tefl courses and vast use of the internet, lack of empirical studies to explore these areas is obvious. this study aimed to explore the effect of the amount of familiarity with the web (internet literacy) on junior english stude...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

2011
M. G. Jeyaruban

Data on Angus (ANG), Charolais (CHR), Hereford (HER) and Limousin (LIM) cattle were used to estimate genetic parameters for calving difficulty (CD) and to quantify genetic relationships among CD, birth weight (BWT) and gestation length (GL). Bayesian analysis was carried out using Gibbs sampling to obtain means of marginal posterior distributions. Estimated heritabilities for direct genetic eff...

Journal: :پژوهش های حبوبات ایران 0
بیطرف بیطرف خدامباشی خدامباشی هوشمند هوشمند

the purpose of this study was to describe the association between grain yield and its components. the experiment was conducted in a randomized complete block design with three replicatsions. results of analysis showed that similar trends were observed for genotypic and phenotypic correlations and in most cases, the value for genetic correlation was greater than phenotypic value. 100-seed weight...

Journal: :علوم دامی ایران 0
سمیه پنجه شیری دانشجوی کارشناسی ارشد، دانشکدة کشاورزی دانشگاه زنجان مرادپاشا اسکندری نسب دانشیار و استادیار، دانشکدة کشاورزی دانشگاه زنجان محمدباقر زندی باغچه مریم استادیار، دانشکدة کشاورزی دانشگاه زنجان محمدحسین مرادی استادیار، دانشکدة کشاورزی و منابع طبیعی دانشگاه اراک

the objective of this research was to estimate the genetic parameters and trend of somatic cell count in holstein cows of iran using test day records. the phenotypic the used data consisted of were consisting of 407167 first lactation test day records the which were collected by the center of animal breeding and livestock production improvement center of iran during 2009 to 2013. somatic cell c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم تربیتی و روانشناسی 1388

on- the-job training on of the most effective tools for managers to cope with the changing organizational environment. it grantess suitable services to customers, particularly in public service enterprises. if such training os goal oriented, planned systematically, and tailored to the employees, job content, then not only it could increase employees and organizational performance, but also it c...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
اسحاق علی بیاتی مدیر گروه رشته های کشاورزی دانشگاه پیام نور، کبودرآهنگ، همدان حسین میرزایی ندوشن استاد، موسسه تحقیقات جنگلها و مراتع کشور، تهران محمد رضا بی همتا استاد، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج

in order to find the superior genotypes and high yielding potato varieties, the experiment was carried out on 33 introduced potato genotypes and varieties based on a complete randomized block design with four replications, in which a number of morphological characteristics were investigated. results of analysis of variance on the recorded traits revealed that the studied genotypes were signific...

H. Ghiasi M. Khaldari,

This study was carried out to investigate the direct and indirect responses to selection for four-week body weight (4 week body (wk BW)) and four-week breast weight (4 week breast weight (wk BRW)) and to determine the genetic contribution of reminder founders to the last generation. A total number of 351 birds were equally allocated to three lines, including two selected lines (S1 and S2 for BW...

رشیدی, امیر, زندی باغچه مریم, محمدباقر, شیخ احمدی, محمد, مرادی شهربابک, محمد, میرایی آشتیانی, سید رضا,

  Genetic and phenotypic parameters for body and yearling fleece weigh traits were estimated based on 4008 records. Records gathered across year 1993 to 2007 in the Markhoz goat research stations in Saghez and Sanandaj. Parameters were estimated using univariate and bivariate animal model with restricted maximum like lihood ASREML software. Mean (standard error of means) of birth weight (BW), w...

2006
Metin Sezer

Covariance components and genetic parameters of weekly live body weight from hatching to six weeks of age and age of sexual maturation were estimated in a laying type Japanese quail line. The univariate and bivariate animal model analysis included hatching group and sex as fixed effects. Each trait was analysed with animal as random effect to fit the additive direct effect. Additional random ef...

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