Improving Epd Accuracy by Combining Epd Information with Dna Test Results
نویسنده
چکیده
Molecular or DNA sources of information represent a rapidly developing technology with regards to beef cattle selection. Given the rapid commercialization of DNA marker panels, producers have been able to see changes first hand in reporting styles, panel sizes, and traits for which panels are available. Ultimately, the power of this technology will only be fully exploited when it is seamlessly integrated into National Cattle Evaluations (NCE).
منابع مشابه
Evaluation of Simmental carcass EPD estimated using live and carcass data.
This study was conducted to compare carcass EPD predicted using yearling live animal data and/or progeny carcass data, and to quantify the association between the carcass phenotype of progeny and the sire EPD. The live data model (L) included scan weight, ultrasound fat thickness, longissimus muscle area, and percentage of intramuscular fat from yearling (369 d of age) Simmental bulls and heife...
متن کاملDNA-based paternity analysis and genetic evaluation in a large, commercial cattle ranch setting.
Deoxyribonucleic acid-based tests were used to assign paternity to 625 calves from a multiple-sire breeding pasture. There was a large variability in calf output and a large proportion of young bulls that did not sire any offspring. Five of 27 herd sires produced over 50% of the calves, whereas 10 sires produced no progeny and 9 of these were yearling bulls. A comparison was made between the pa...
متن کاملRelationship between milk expected progeny differences of polled Hereford sires and actual milk production of their crossbred daughters.
One hundred sixteen spring-calving Polled Hereford x Angus cows were milked using milking machines after receiving 20 IU of oxytocin. Sires of the cows had been divergently selected on yearling weight (YW) and total maternal (MAT) EPD to form four groups: high YW, high MAT EPD; high YW, low MAT EPD; low YW, high MAT EPD; and low YW, low MAT EPD. Average milk production after 12-h calf separatio...
متن کاملDistraction and Driving Behavior by Presenting Information on an "Emissive Projection Display" Compared to a Head-up Display
A study in the static driving simulator examines whether the use of an Emissive Projection Display (EPD) causes significant effects on attention and cognitive load in addition to the driving task. Moreover, a comparison with a conventional Head-Up Display (HUD) is drawn. Conclusions regarding the driver’s stress resulting parallel to the driving task are objectively determined by reaction times...
متن کاملCow-calf reproductive, genetic, and nutritional management to improve the sustainability of whole beef production systems.
Optimizing efficiency in the cow-calf sector is an important step toward improving beef sustainability. The objective of the study was to use a model to identify the relative roles of reproductive, genetic, and nutritional management in minimizing beef production systems' environmental impact in an economically viable, socially acceptable manner. An economic and environmental diet optimizer was...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011