Body condition scores and dairy form evaluations as indicators of days open in US Holsteins

Journal of Dairy Science
C D DechowP M VanRaden

Abstract

The objectives of this study were to estimate genetic correlations among body condition score (BCS), dairy form, milk yield, and days open in US Holsteins and investigate the potential of using BCS or dairy form evaluations as early indicators of days open. Dairy form and BCS obtained from the Holstein Association USA, Inc., were merged with mature equivalents (ME) for milk yields and days open data from AIPL-USDA. Cows were required to be classified between 24 and 60 mo of age, before 335 d in milk (DIM) and have ME milk of at least 4537 kg. A minimum of 20 daughters per sire and 10 cows per herd-classification visit (HV) or herd-year-season of calving (HYS) were required. The final data set included 159,700 records. Heritabilities and correlations among dairy form, BCS, milk yield, and days open were estimated with multiple trait sire models. Fixed effects included age at classification for dairy form and BCS, age at calving for milk yield, HV for dairy form and BCS, HYS for milk yield and days open, DIM within lactation group for dairy form and BCS and lactation group for milk yield and days open. Correlations among dairy form, BCS, and days open were generated with and without a ME milk covariable. Correlations between ME m...Continue Reading

References

Jul 1, 1992·Journal of Dairy Science·T H Short, T J Lawlor
Oct 1, 1990·Journal of Dairy Science·R O HarrisonA E Freeman
Dec 1, 1986·Journal of Dairy Science·E DadatiE B Burnside
Nov 13, 1998·Journal of Dairy Science·B Harris, D Johnson
May 23, 2000·Journal of Dairy Science·K A Weigel, R Rekaya
Jun 22, 2001·Journal of Dairy Science·J E PryceG Simm

❮ Previous
Next ❯

Citations

Oct 17, 2013·Animal : an International Journal of Animal Bioscience·J E PryceB J Hayes
Apr 8, 2014·Animal : an International Journal of Animal Bioscience·D P BerryJ E Pryce
Nov 28, 2017·Journal of Dairy Science·K D Gibson, C D Dechow
May 6, 2014·Journal of Dairy Science·K D GayM M Schutz
Mar 2, 2005·Journal of Dairy Science·S TsurutaT J Lawlor
Oct 13, 2006·Journal of Dairy Science·J E Pryce, B L Harris
Feb 17, 2007·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Y de HaasH N Kadarmideen
Jul 7, 2007·Genetics, Selection, Evolution : GSE·Oscar González-Recio, Rafael Alenda
Feb 1, 2010·Animal : an International Journal of Animal Bioscience·G Banos, M P Coffey
May 29, 2007·Theriogenology·R F Veerkamp, B Beerda

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.