Type

Journal Article

Authors

Dimitrios Rizos
Niamh Forde
Trudee Fair
Pat Lonergan

Subjects

Veterinary

Topics
50 years embryonic development dairy cattle nutrient partitioning milk production embryo development negative energy balance dairy cows

Embryo development in dairy cattle. (2016)

Abstract During the past 50 years, the fertility of high-producing lactating dairy cows has decreased, associated with intensive selection for increased milk production. The physiological and metabolic changes associated with high milk production, including decreased (glucose, insulin, IGF-I) or increased (nonesterified fatty acids, ketone bodies) concentrations of circulating metabolites during nutrient partitioning associated with negative energy balance as well as uterine and nonuterine diseases have been linked with poor reproductive efficiency. Fertilization is typically above 80% and does not seem to be the principal factor responsible for the low fertility in dairy cows. However, early embryonic development is compromised in high-producing dairy cows, as observed by most embryonic losses occurring during the first 2 weeks after fertilization and may be linked to compromised oocyte quality due to a poor follicular microenvironment, suboptimal reproductive tract environment for the embryo, and/or inadequate maternal-embryonic communication. These and other factors related to embryo development will be discussed.
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

Dimitrios Rizos, Niamh Forde, Trudee Fair, Pat Lonergan

Experts in our system

1
D Rizos
University College Dublin
Total Publications: 42
 
2
N Forde
University College Dublin
Total Publications: 55
 
3
T Fair
University College Dublin
Total Publications: 71
 
4
Pat Lonergan
University College Dublin
Total Publications: 26