منابع مشابه
Genotype by Environment Interaction for Milk Production Traits in Guernsey Cattle
Current methods for routine international evaluations are based on pre-processed information. This puts several restrictions on the method of analysis that can be used. For example, comparisons need to be made on genetic evaluation unit bases. Neighboring countries with similar production environments cannot be treated as genetically identical traits, and environmental variation within country ...
متن کاملestimation of genotype by environment interaction for production traits in iranian holstein cattle
in order to evaluation of genotype by environment interactions in holstein cows, iran was divided into cold, middle cold, temperate and hot climate regions. for this purpose used from 39570, 35813 and 18955 records for milk, fat and protein yields, respectively, to progeny test for 35 sires that have 50 daughters in each climate. the data were collected by the centre of breeding and improvement...
متن کاملRecent Evolution in Milk Secretion of Guernsey Cattle.
Solar Vortices," Contributions from the Mount Wilson Observatory, No. 109; Astrophysical Journal, 43, 347 (1916). The electromagnetic theory of solar vortices was developed by Professor Stormer merely as a working hypothesis and not as an expression of his opinion regarding the nature of these phenomena. The legend of figure 9 in Professor St6rmer's article is incorrect: the words "clockwise" a...
متن کاملGenotype by environment interaction for milk production traits in Tunisian Holstein dairy
Received: 7 March, 2014 Accepted: 21 May, 2014 Published: 20 July, 2014 The data consisted of 37118 TD milk record of 5851 primiparous Holstein cows of Tunisia. Herd-years of calving means for milk production traits were clustered in three levels using the CLUSTER procedure in SAS software. Production levels included low, medium and high levels. Genotype by environment interaction were investig...
متن کاملUdk = 636.2:637.12(497.4) Multiple Trait Analysis of Genotype by Environment Interaction for Milk Yield Traits in Slovenian Cattle
The objective of the study was to evaluate genotype by environment interaction (GxEI) for yield traits in Holstein, Simmental and Brown breed cattle in Slovenia using multiple trait analysis. Data from Slovenian milk-recording scheme was used. The lactation records on cows having first to third calving in the period 1990-2004 and milk, protein and fat yield in 305 days were studied. The variabl...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2003
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(03)73768-0