Paper published in a book (Scientific congresses and symposiums)
Early-programming of dairy cattle, a potential explanation to the adaptation to climate change
Hammami, Hedi; Colinet, Frédéric; Bastin, Catherine et al.
2018In Book of Abstracts of the 69th Annual Meeting of the European Federation of Animal Science
Peer reviewed
 

Files


Full Text
Early-programming of dairy cattle, a potential explanation to the adaptation to climate change.pdf
Publisher postprint (641.87 kB)
Abstract publisher in the book
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
gene expression; embryo development; early programming
Abstract :
[en] Breeding for robustness and considering genotype by environment interaction (G×E) is linked to adaptation. Recently, it has been established that gene expression can be affected by the environment during the embryo development. The concept of early programming has been demonstrated in many settings. This study aimed to assess the impact of thermal stress when dairy cows been conceived on their lifetime performances. Studied traits were milk yield and some novel milk-based biomarkers, fertility (days open), health (somatic cell score and ketosis), and heat tolerance. Data used compromised 905,391 test day of 58,297 cows in parity 1 to 3 for production traits, health and ketosis status, 104,635 records of 48,125 cows for days open, and 399,449 test days recorded (linked with temperature humidity index values, THI) of 28,203 cows for heat tolerance trait. Date of conception was estimated using the next calving date of the cow and subtracting 280 d from the calving interval. Cows being conceived in summer (June- August) were considered as influenced by heat stress (environment 1) and those conceived in winter (December- February) as neutral-thermal conditions (environment 2). G×E was analysed by a multi-trait model for days open in which each of the 3 lactations measured in heat stress and thermo-neutral conditions were considered as separate traits. For the rest of the traits, it was analysed using reaction norm models, in which the trait is considered a function of an environmental descriptor (i.e. THI, days in milk) in the two discrete environments. First results showed that genetic correlations across both early-life defined environments and lactations were substantially lower than unity, implying that effects of genes for cows conceived under neutral-thermal conditions may be different of the effects for the same genes for cows conceived under heat stressed conditions.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Hammami, Hedi ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Colinet, Frédéric ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Bastin, Catherine
Vanderick, Sylvie  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Mineur, Axelle ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Naderi Darbaghshahi, Saeid ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
REIS MOTA, Rodrigo ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Gengler, Nicolas  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Language :
English
Title :
Early-programming of dairy cattle, a potential explanation to the adaptation to climate change
Publication date :
August 2018
Event name :
69th Annual Meeting of the European Federation of Animal Science
Event organizer :
EAAP - European Federation of Animal Science
Event place :
Dubrovnik, Croatia
Event date :
27-31 August 2018
Audience :
International
Main work title :
Book of Abstracts of the 69th Annual Meeting of the European Federation of Animal Science
Publisher :
Wageningen Academic Publishers, Wageningen, Netherlands
Edition :
Dubrovnik 2018
ISBN/EAN :
978-90-8686-323-5
Collection name :
Nº. 24
Pages :
573
Peer reviewed :
Peer reviewed
Available on ORBi :
since 04 November 2018

Statistics


Number of views
131 (12 by ULiège)
Number of downloads
7 (5 by ULiège)

Bibliography


Similar publications



Contact ORBi