نتایج جستجو برای: breeding value

تعداد نتایج: 788305  

2012
Michael Bourget John F. Burr Chieri Kubota Roberto G. Lopez Robert C. Morrow Erik S. Runkle

Medicinal, Aromatic and Nutraceutical Plants from Mountainous Areas • Mycotoxins in Nuts and Dried Fruits • Cashew Nut • Apricot Breeding and Culture • Fruit Breeding and Genetics • Sustainable Vegetable Production in South East Asia • High Tunnel Horticultural Crop Production • Organic Matter Management and Compost Use in Horticulture LEDs: The Future of Greenhouse Lighting! • High Value Horti...

Journal: :Journal of animal science 2010
M D MacNeil J D Nkrumah B W Woodward S L Northcutt

The objectives were to estimate genetic parameters needed to elucidate the relationships of a molecular breeding value (MBV) for marbling, intramuscular fat (IMF) of yearling bulls measured with ultrasound, and marbling score (MRB) of slaughtered steers, and to assess the utility of MBV and IMF in predicting the breeding value for MRB. Records for MRB (n = 38,296) and IMF (n = 6,594) were from ...

2015
Héctor Castillo-Juárez Gabriel R. Campos-Montes Alejandra Caballero-Zamora Hugo H. Montaldo

The uses of breeding programs for the Pacific white shrimp [Penaeus (Litopenaeus) vannamei] based on mixed linear models with pedigreed data are described. The application of these classic breeding methods yielded continuous progress of great value to increase the profitability of the shrimp industry in several countries. Recent advances in such areas as genomics in shrimp will allow for the de...

2017
A. G. Shankar

Cisgenesis is a precise science where in genetic modification is by transferring beneficial alleles from crossable species into recipient plant it has additional advantages over traditional breeding / conventional breeding. Cisgenesis can avoid linkage drag, enhance the use of existing alleles. It saves the time to develop variety by combining traditional breeding techniques and modern biotechn...

2017
Yutaka HASHIYADA

Production of sires with high breeding potential is indispensable for prompt and reliable breeding using their semen in the cattle industry. Currently, in Japan, we aim to further the production of Japanese black sires via a new breeding system that uses genetically homologous monozygotic twins so that better growth performance and carcass traits can be translated to the increased production of...

2005
J. E. Pryce B. L. Harris W. Montgomerie

Body condition score has been proposed as an additional trait in New Zealand’s national breeding objective. To be considered for inclusion, genetic parameters and an economic value are required. We propose genetic evaluation of body condition score using a random regression model that includes 2 order orthogonal Legendre polynomials fitted to the genetic variance and a link function to account ...

2016
Matthew D. Goiffon Guiping Hu Patrick Schnable Lizhi Wang

...................................................................................................................... v CHAPTER I GENERAL INTRODUCTION ............................................................... 1 CHAPTER II LITERATURE REVIEW ....................................................................... 4 CHAPTER III SELECTION ON OPTIMAL POPULATION VALUE INCREASES GENETIC GAIN REL...

Journal: :Journal of animal science 1992
D A Sorensen K Johansson

Analytic results obtained using simple models show that estimates of selection response of univariate experiments using animal models are completely dependent on the heritability used as prior when fixed effects are nested within generations, and both on the prior and on the true heritability parameter when fixed effects overlap across generations. Univariate animal model estimators of correlat...

2008
DANIELA BERTACCHI

We study the branching random walk on weighted graphs; site-breeding and edgebreeding branching random walks on graphs are seen as particular cases. We describe the strong critical value in terms of a geometrical parameter of the graph. We characterize the weak critical value and relate it to another geometrical parameter. We prove that, at the strong critical value, the process dies out locall...

Journal: :Journal of biological dynamics 2009
Azmy S Ackleh Ross A Chiquet

A general discrete juvenile-adult population model with time-dependent birth rate and nonlinear survivorship rates is studied. When breeding is continuous, it is shown that the model has a unique globally asymptotically stable positive equilibrium provided the net reproductive number is larger than one. If it is smaller than one, then the extinction equilibrium is globally asymptotically stable...

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