Genetic trends for live weight traits reflect breeding strategies in registered Charolais Farms in Mexico

Genetic trends are commonly used to verify genetic improvement; however, there are few reports on beef cattle in Mexico. Data from 1998 to 2013 from four Charolais bull breeding farms were examined to verify the genetic responses to different breeding management and selection criteria. Analysis incl...

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Bibliographic Details
Published in:Tropical animal health and production 2016-12, Vol.48 (8), p.1729-1738
Main Authors: Parra-Bracamonte, G. M., Lopez-Villalobos, N., Morris, S. T., Sifuentes-Rincón, A. M., Lopez-Bustamante, L. A.
Format: Article
Language:English
Subjects:
Animal breeding
Animal Husbandry
Animals
Beef cattle
Biomedical and Life Sciences
Birth Weight
Body Weight
Breeding
Cattle - genetics
Cattle - physiology
Farms
Female
Genetic improvement
Life Sciences
Male
Mexico
Regular Articles
Selection, Genetic
Tropical Climate
Veterinary Medicine/Veterinary Science
Zoology
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Summary:Genetic trends are commonly used to verify genetic improvement; however, there are few reports on beef cattle in Mexico. Data from 1998 to 2013 from four Charolais bull breeding farms were examined to verify the genetic responses to different breeding management and selection criteria. Analysis included the comparison of regression lines of breeding values for birth (BW), weaning (WW) and yearling weights (YW), and maternal weaning weight (MWW) on the year of birth of the animals. Results revealed differential genetic progress for BW and YW and indicated that the overall analysis may have diluted the perception of genetic progress from the farmer’s point of view. The use of breeding values as a tool for selection is effective to achieve genetic progress, even in negatively correlated traits, such as birth weight and yearling weight.
ISSN:0049-4747
1573-7438
DOI:10.1007/s11250-016-1150-2