Background Identification of single nucleotide polymorphisms (SNPs) for specific genes
involved in reproduction might improve reliability of genomic estimates for these low …

A current challenge in genetic improvement of cattle is to identify genomic selection
strategies that could work across breeds. Breed differences, scarcity of data, and lack of …

Selection of a single dominant follicle from a cohort of growing follicles is a unique biological
process, a key step in female reproductive function in monovular species, and lies at the …

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 …

Insulin-like growth factor 1 (IGF-1) has been shown to be associated with fertility, growth,
and development in cattle. The aim of this study was to (1) identify novel single nucleotide …

Background Twin and multiple births are rare in cattle and have a negative impact on the
performance and health of cows and calves. Therefore, selection against multiple birth …

Over the last decades, a dramatic decrease in reproductive performance has been observed
in Holstein cattle and fertility problems have become the most common reason for a cow to …

Zebu animals (Bos indicus) are known to take longer to reach puberty compared with taurine
animals (Bos taurus), limiting the supply of animals for harvest or breeding and impacting …

The insulin-like growth factor 1 (IGF1) gene was studied as a candidate gene for high
prolificacy in sheep. Polymorphisms of 5′ regulatory region and all four exons of IGF1 gene …

In mammals, litter size is a highly variable trait. Some species such as humans or cattle are
monotocous, with one or sometimes two newborns per birth, whereas others, the polytocous …