Results 31 to 40 of about 4,478,235 (154)

Genetic analysis of semen from different origins and their impact on production traits: A single and multiple trait approach [PDF]

Biotechnology in Animal Husbandry, 2023
This study aims to evaluate the genetics of imported semen and assess the genetic trend of production traits in Holstein cows during their first lactation in Iran.
Jafarzadeh Ghadimi Ramin, Shodja Jalil, Alijani Sadegh, Rafat Abbas, Sheikhlo Mohamadreza   +4 more
doaj   +1 more source

EVALUATION OF SOME SUGAR BEET VARIETIES UNDER THREE HARVESTING DATES [PDF]

Journal of Agricultural Chemistry and Biotechnology, 2009
Two field experiments were carried out at Tamiya, El-Fayoum Governorate during 2006/2007 and 2007/2008 seasons to evaluate yield, yield components and quality of six sugar beet varieties namely LP 11, Demapoly, LP 13 , Pleno , Kawemira and LP 12 under ...
K. A. M. Khaled, S. R. E. El-Sheikh, S. A. A. M. Enan   +2 more
doaj   +1 more source

Likelihood inference for small variance components

, 2000
In this paper, we develop likelihood-based methods for making inferences about the components of variance in a general normal mixed linear model. In particular, we use local asymptotic approximations to construct confidence intervals for the components ...
Stern, S.E., Welsh, A.H.
core   +2 more sources

Variance components estimation for farrowing traits of three purebred pigs in Korea [PDF]

Asian-Australasian Journal of Animal Sciences, 2017
Objective This study was conducted to estimate breed-specific variance components for total number born (TNB), number born alive (NBA) and mortality rate from birth through weaning including stillbirths (MORT) of three main swine breeds in Korea.
Bryan Irvine Lopez, Tae Hun Kim, Milton Tinashe Makumbe, Chol Won Song, Kang Seok Seo   +4 more
doaj   +1 more source

On testing variance components in unbalanced mixed linear model [PDF]

, 2001
summary:The paper presents some approximate and exact tests for testing variance components in general unbalanced mixed linear model. It extends the results presented by Seifert (1992) with emphasis on the computational aspects of the ...
Širková, Lýdia, Witkovský, Viktor
core   +1 more source

Estimators for Components of Variance [PDF]

, 1962
4 pages, 1 article*Estimators for Components of Variance* (Federer, W.
Cornell University. Dept. of Biological Statistics and Computational Biology., Cornell University. Biometrics Unit., Cornell University. Dept. of Biometrics., Federer, W. T.   +3 more
core   +4 more sources

Variance components of invasion.

, 2020
Variance components of invasion.
Kevin J. Cheung (8339253), Veena Padmanaban (8339247), Joel S. Bader (205554), Yohannes Tsehay (8339250), Andrew J. Ewald (8339256)   +4 more
core   +1 more source

The Variance Composition of Firm Growth Rates [PDF]

BAR: Brazilian Administration Review, 2009
Firms exhibit a wide variability in growth rates. This can be seen as another manifestation of the fact that firms are different from one another in several respects.
Luiz Artur Ledur Brito, Flávio Carvalho de Vasconcelos   +1 more
doaj  

Kriging with Unknown Variance Components for Regional Ionospheric Reconstruction

Sensors, 2017
Ionospheric delay effect is a critical issue that limits the accuracy of precise Global Navigation Satellite System (GNSS) positioning and navigation for single-frequency users, especially in mid- and low-latitude regions where variations in the ...
Ling Huang, Hongping Zhang, Peiliang Xu, Jianghui Geng, Cheng Wang, Jingnan Liu   +5 more
doaj   +1 more source

Iteratively Reweighted Least Squares Fiducial Interval for Variance in Unbalanced Variance Components Model

Mathematics
The objective of this work is to propose the iteratively reweighted least squares concept to form a fiducial generalized pivotal quantity of the between-group variance component for the unbalanced variance components model.
Arisa Jiratampradab, Jiraphan Suntornchost, Thidaporn Supapakorn   +2 more
doaj   +1 more source