Fertility traits measured early in life define the reproductive potential of heifers. Knowledge of
genetics and biology can help devise genomic selection methods to improve heifer fertility …

Puberty onset is a multifactorial process influenced by genetic determinants and
environmental conditions, especially nutritional status. Genes, genetic variations, and …

Endocrine system plays a major role in the control of reproductive functions which are
regulated by the hypothalamus–pituitary–gonad axis and its interactions. FSH and LH …

Heifer early calving (HC) plays a key role in beef cattle herds' economic sustainability and
profitability by reducing production costs and generation intervals. However, the genetic …

Measures of heifer fertility are economically relevant traits for beef production systems and
knowledge of candidate genes could be incorporated into future genomic selection …

Background An important goal of Zebu breeding programs is to improve reproductive
performance. A major problem faced with the genetic improvement of reproductive traits is …

Puberty onset is a developmental process influenced by genetic determinants, environment,
and nutrition. Mutations and regulatory gene networks constitute the molecular basis for the …

The decline in the reproductive efficiency of dairy cattle has become a challenging problem
worldwide. Female fertility is now taken into account in breeding goals while generally less …

1Department of Genetics and Animal Breeding, University of Tabriz, Tabriz, Iran
2Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran …

The genetics of reproduction is poorly understood because the heritabilities of traits currently
recorded are low. To elucidate the genetics underlying reproduction in beef cattle, we …