TY - JOUR
T1 - Genetic trends for live weight traits reflect breeding strategies in registered Charolais Farms in Mexico
AU - Parra-Bracamonte, G. M.
AU - Lopez-Villalobos, N.
AU - Morris, S. T.
AU - Sifuentes-Rincón, A. M.
AU - Lopez-Bustamante, L. A.
N1 - Publisher Copyright:
© 2016, Springer Science+Business Media Dordrecht.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - 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.
AB - 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.
KW - Beef cattle
KW - Breeding values
KW - Genetic change
KW - Growth
KW - Selection
UR - http://www.scopus.com/inward/record.url?scp=84989193399&partnerID=8YFLogxK
U2 - 10.1007/s11250-016-1150-2
DO - 10.1007/s11250-016-1150-2
M3 - Artículo
C2 - 27696327
SN - 0049-4747
VL - 48
SP - 1729
EP - 1738
JO - Tropical Animal Health and Production
JF - Tropical Animal Health and Production
IS - 8
ER -