Management, nutrition, production, and genetics are the main reasons for the decline in
fertility in the modern dairy cow. Selection for the single trait of milk production with little …

Improving dairy cow fertility by means of genetic selection is likely to become increasingly
important, since it is now well established that declining fertility cannot only be arrested by …

Fertility in dairy cows has been declining for the past three decades. Genetic selection for
increased milk production has been associated with changes in key metabolic hormones …

High-yielding dairy cows are more susceptible to metabolic and reproductive disorders than
low-yielding cows. Insulin plays a pivotal role in the development of both problems. In the …

Milk yields> 10,000 kg/year are common in modern dairy production, owing to improved
nutrition, management and genetics gains through use of progeny-tested bulls. However …

In previous studies, high plasma insulin was associated with earlier resumption of
postpartum estrous cycles in dairy cows. The objective of this experiment was to quantify …

There has been a significant decline in the reproductive performance of dairy cattle in recent
decades. Cows, take longer time to return to the oestrus after calving, have poorer …

Genetic selection of milk yield traits alters the energy distribution of high producing cows,
resulting in gene-induced negative energy balance, and consequently, poor body condition …

Contents Seventy pluriparous high‐yielding cows were used to investigate the impact of
metabolic traits and body condition score (BCS) during early lactation on subclinical …

Decreased insulin sensitivity (IS) in dairy cows supports milk yield but increases the risk for
metabolic and reproductive disorders. Although several inducers of decreased IS are …