Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Jochen Wolf"'
Publikováno v:
Journal of Dairy Science. 97:1092-1106
Improving the feed efficiency of dairy cattle has a substantial effect on the economic efficiency and on the reduction of harmful environmental effects of dairy production through lower feeding costs and emissions from dairy farming. To assess the ec
Publikováno v:
Preventive Veterinary Medicine. 77:48-64
Data on clinical mastitis (CM) collected between 1996 and 2003 on five Holstein dairy farms in the Czech Republic were analyzed. Lactational incidences of CM, averaged across farms and calculated only from cows with complete lactations, were 0.35, 0.
Publikováno v:
Animal Science. 82:455-462
The data sets consisted of field performance data from 54 848 purebred and 16 175 crossbred animals (Czech data set, CZ) and 16 610 purebred and 9 228 crossbred animals (Slovak data set, SK). Animals from the following breeds were included: Duroc, Ha
Publikováno v:
Czech Journal of Animal Science. 50:96-103
The covariance structure was estimated by REML for a joint genetic evaluation of production and reproduction traits for Czech Landrace (58 258 records) and Czech Large White (167 161 records) pigs using four- trait animal models. The following traits
Publikováno v:
Livestock Production Science. 88:213-222
Selection of young animals in different time periods (based on sequentially increasing data and pedigree files) was investigated in a pig population with a high proportion of imported genetics. The model with genetic groups accounting for different g
Publikováno v:
Livestock Production Science. 77:155-165
The covariance structure was estimated by REML for a joint genetic evaluation of traits from field test, station test and litter recording with data from the Czech Landrace (LA, 86 833 records) and the Slovak White Meaty breed (WM, 58 348 records). P
Publikováno v:
Journal of Animal Breeding and Genetics. 118:161-172
Changes in variance component estimates in growing sets of performance data in two pig breeds were investigated. Data was used from the field and station test of Czech Landrace (LA: 75 099 observations) and the Slovakian breed, White Meaty swine (WM:
Publikováno v:
Journal of dairy science. 93(3)
Cases of mastitis from 9,550 lactations of 6,242 cows were recorded on 5 farms in the Czech Republic from 1996 to 2008. The number of clinical mastitis (CM) cases per cow adjusted to a lactation length of 305 d was analyzed with 4 linear single-trait
Publikováno v:
University of Helsinki
Suomen Maataloustieteellisen Seuran Tiedote
Suomen Maataloustieteellisen Seuran Tiedote
Tehostamalla lypsykarjan rehun hyväksikäyttökykyä on mahdollista parantaa maidontuotannon taloudellista kannattavuutta. Tämän lisäksi eläinten tehokas rehunkäyttökyky vähentänee maidontuotannon ympäristöön kohdistamaa kuormittavuutta.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dcef3cd8bfd1a5cd5352546cfe304a6
https://researchportal.helsinki.fi/en/publications/1509e52e-62bf-4a60-85b9-7697db800257
https://researchportal.helsinki.fi/en/publications/1509e52e-62bf-4a60-85b9-7697db800257