scholarly journals Incorporating temperament traits in dairy cattle breeding programs: challenges and opportunities in the phenomics era

2020 ◽  
Vol 10 (2) ◽  
pp. 29-36 ◽  
Author(s):  
Yao Chang ◽  
Luiz F Brito ◽  
Amanda B Alvarenga ◽  
Yachun Wang
Keyword(s):  
Dairy Cattle ◽  
Cattle Breeding ◽  
Breeding Programs ◽  
Challenges And Opportunities ◽  
Dairy Cattle Breeding ◽  
Temperament Traits

scholarly journals 189 Choices ahead for dairy cattle breeding programs

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 22-23
Author(s):  
Michael M Lohuis
Keyword(s):  
Dairy Cattle ◽  
Genomic Selection ◽  
Gene Editing ◽  
New Technologies ◽  
Value Added ◽  
Progeny Testing ◽  
Cattle Breeding ◽  
Breeding Programs ◽  
Dairy Cattle Breeding ◽  
Selection For

Abstract Dairy cattle breeding programs have been transformed from conventional progeny-testing schemes to genomic selection paired with nucleus herd breeding in the span of one decade. This was spurred by the simultaneous advances in low-cost SNP genotyping, genomic selection methodology and reproductive biotechnologies. The rates of genetic progress have approximately doubled in this time but so have increases in inbreeding levels. This was driven by intense competition between AI studs and farmer adherence to common selection indices which has concentrated selection on very elite segments of juvenile age groups. This has led to speculation on the need for alternative indices and selection for novel traits in order to differentiate breeding programs and customize selection for unique farm conditions. This will be made more possible by the advent of on-farm sensor technology and artificial intelligence algorithms. Large commercial dairies are increasingly experimenting with crossbreeding with varying levels of success and this will require a new approach by breeding programs to focus both on purebred and crossbred performance. In addition, the potential exists for use of gene-editing to further enable value-added traits to be added into breeding programs. In parallel with breeding program advancements, consumer trends are also changing to include more interest in specialty dairy products with implied differences in digestibility, health or environmental impacts. Identifying technologies and traits that will add value either on the farm as well as at the consumer level will be a challenge for today’s breeders and producers. Some new technologies, such as gene editing, can pose consumer acceptance challenges if they are perceived to be used carelessly or for the wrong reasons. Careful choices will need to be made to continue to improve profitability, functionality and health of dairy cattle while also meeting higher consumer standards for animal welfare, health and the environment.

EVALUATION OF LACTATION CURVES OF UKRAINIAN BLACK-AND-WHITE DAIRY COWS DEPENDING ON PARATIPICAL FACTORS

2016 ◽  
Vol 52 ◽  
pp. 31-36
Author(s):  
V. S. Kozyr ◽  
A. D. Hekkiyev
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Objective Assessment ◽  
Dairy Herd ◽  
Mathematical Methods ◽  
Cattle Breeding ◽  
Breeding Programs ◽  
Black And White ◽  
Predicting Performance ◽  
Dairy Cattle Breeding

It was proved that features of lactation curves of cows should be considered at developing breeding programs in dairy cattle breeding, contributing to an objective assessment of a genotype and thus, use of genetic and mathematical methods would increase probability of predicting performance for dairy herd.

Selection against Mastitis and Cell Count in Dairy Cattle Breeding Programs

1992 ◽  
Vol 42 (4) ◽  
pp. 205-210
Author(s):  
Grazyna Sender ◽  
Jarmo Juga ◽  
Tapani Hellman ◽  
Hannu Saloniemi
Keyword(s):  
Dairy Cattle ◽  
Cell Count ◽  
Cattle Breeding ◽  
Breeding Programs ◽  
Dairy Cattle Breeding

scholarly journals Optimal strategies for the use of genomic selection in dairy cattle breeding programs

2011 ◽  
Vol 94 (8) ◽  
pp. 4140-4151 ◽  
Author(s):  
M. Wensch-Dorendorf ◽  
T. Yin ◽  
H.H. Swalve ◽  
S. König
Keyword(s):  
Dairy Cattle ◽  
Genomic Selection ◽  
Optimal Strategies ◽  
Cattle Breeding ◽  
Breeding Programs ◽  
Dairy Cattle Breeding

scholarly journals Estimating the environmental impact of dairy cattle breeding programs through emission intensity

animal ◽  
2020 ◽  
pp. 100005
Author(s):  
C.M. Richardson ◽  
C.F. Baes ◽  
P.R. Amer ◽  
C. Quinton ◽  
F. Hely ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Dairy Cattle ◽  
Emission Intensity ◽  
Cattle Breeding ◽  
Breeding Programs ◽  
Dairy Cattle Breeding
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