Genetic parameters for clinical mastitis, fertility and somatic cell score in Czech Holstein cattle

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F17%3AN0000169" target="_blank" >RIV/00027014:_____/17:N0000169 - isvavai.cz</a>

Result on the web

<a href="https://www.degruyter.com/view/j/aoas.2017.17.issue-4/aoas-2017-0006/aoas-2017-0006.xml" target="_blank" >https://www.degruyter.com/view/j/aoas.2017.17.issue-4/aoas-2017-0006/aoas-2017-0006.xml</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/aoas-2017-0006" target="_blank" >10.1515/aoas-2017-0006</a>

Result language

angličtina

Original language name

Genetic parameters for clinical mastitis, fertility and somatic cell score in Czech Holstein cattle

Original language description

Cases of mastitis (CM) from 38,236 lactations belonging to 16,497 cows were recorded on seven farms in the Czech Republic from 1996 to 2014. Clinical mastitis was analyzed with linear animal model as an all-or-none trait for each recorded lactation (CM305) and separately for each trimester of lactation (CM1, CM2, and CM3). Bivariate linear animal models were used to estimate the genetic correlation between these CM traits and lactation means for somatic cell score (SCS305), the interval between calving and first insemination (INT) and days open (DO). Factors included in the linear model were parity, herd, year of calving, calving season, fixed linear and quadratic regression on age at first calving, fixed linear and quadratic regression on milk production in the corresponding parity, permanent environmental effect of the cow, and additive genetic effect of the cow. Estimated heritabilities of the CM traits ranged from 0.01 to 0.03. Permanent environmental effects accounted for approximately two-thirds of the phenotypic variance. Genetic correlations of SCS305 with CM traits were 0.85±0.029, 0.81±0.086, 0.82±0.087, and 0.67±0.088 for CM305, CM1, M2, and CM3, respectively. Genetic correlations of INT with CM305, CM1, CM2, and CM3, respectively, were 0.22±0.065, 0.19±0.084, 0.20±0.121 and 0.15±0.121: and genetic correlations of DO and the four CM traits were 0.28±0.079, 0.26±0.101, 0.43±0.134, and 0.15±0.131. For the 140 sires in the dataset, Spearman rank correlations among breeding values for the four CM traits and for SCS305 were uniformly high at 0.99±0.001.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40203 - Husbandry

Project

<a href="/en/project/QJ1510144" target="_blank" >QJ1510144: Analysis of the genetic relationship among the longevity, fertility and characteristics of udder health and limbs in cattle and sheep</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Annals of Animal Science

ISSN

1642-3402

e-ISSN

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Volume of the periodical

17

Issue of the periodical within the volume

4

Country of publishing house

PL - POLAND

Number of pages

12

Pages from-to

1007-1018

UT code for WoS article

000414005600006

EID of the result in the Scopus database

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