منابع مشابه
Genetic analysis of longitudinal data in beef cattle: a review.
Currently, many different data types are collected by beef cattle breed associations for the purpose of genetic evaluation. These data points are all biological characteristics of individual animals that can be measured multiple times over an animal's lifetime. Some traits can only be measured once on an individual animal, whereas others, such as the body weight of an animal as it grows, can be...
متن کاملNutritional Disorders in Beef Cattle - FSA3071
Nutritional disorders associated with both forage and feed consump tion can have a large impact on the profitability of beef cattle operations. Forages are an important component of beef cattle production systems in Arkansas. Most cowcalf and stocker cattle enterprises in Arkansas rely heavily on foragebased nutritional programs. Forages are used for both livestock grazing and hay production...
متن کاملGenetic Improvement of Reproduction in Beef Cattle
Reproduction is a key profit driver in beef cattle production systems around the world. However genetic evaluation for reproduction traits is generally limited or non-existent. This is likely a function of low levels of recording reproduction traits, and low heritabilities. Traditional BLUP based genetic evaluations have been used effectively in beef for generating estimated breeding values and...
متن کاملBeef symposium: the evolution of beef cattle genetic evaluation.
During the 100-yr history of the American Society of Animal Science, there have been many tools that have been offered to the beef producers of the world. Advancements in reproductive and nutritional technologies have had major impacts on how cattle are managed. However, the advent of beef performance recording and the subsequent advancements in methodology for genetic evaluations and applicati...
متن کاملMultibreed Genetic Evaluations of Beef Cattle
INTRODUCTION Interest in crossbreeding in commercial cattle herds in the latter half of the 20 century sparked a flurry of experiments characterizing breeds and breed crosses for additive and nonadditive gene effects. Analytical models for estimation of these effects naturally followed. A logical extension was to apply the methodology to estimation of genetic merit from records in populations r...
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ژورنال
عنوان ژورنال: Genes & Genomics
سال: 2017
ISSN: 1976-9571,2092-9293
DOI: 10.1007/s13258-017-0525-8