Zobrazeno 1 - 10
of 188
pro vyhledávání: '"A.F. Groen"'
Autor:
F. Forabosco, J.A.M. van Arendonk, Riccardo Bozzi, Piter Bijma, Paul Boettcher, F. Filippini, A.F. Groen
Publikováno v:
Journal of Animal Science. 82:1572-1580
Longevity is an increasingly important trait in beef cattle. Increased longevity decreases costs for the farmer and increases revenue. The objective of this research was to investigate the phenotypic relationship between type traits and longevity in
Publikováno v:
Journal of Dairy Science 87 (2004) 5
ResearcherID
Journal of Dairy Science, 87(5), 1487-1495
ResearcherID
Journal of Dairy Science, 87(5), 1487-1495
The objective of this study was to quantify genotype by environment interaction ( G x E) between automatic milking systems (AMS) and conventional milking systems (CMS) for test-day milk, fat, and protein yield and for test-day somatic cell score (SCS
Publikováno v:
Journal of Animal Science. 82:982-986
This study was motivated by the hypothesis that the incidence of retained placenta (RP) in Friesian horses is associated with inbreeding. The objectives were to 1) calculate the inbreeding rate in the total registered Friesian horse population; 2) st
Publikováno v:
Heredity, 92(5), 402-408
Heredity 92 (2004) 5
Heredity 92 (2004) 5
The aim of the study was to assess the possible existence of major genes influencing hip and elbow dysplasia in four dog populations. A Bayesian segregation analysis was performed separately on each population. In total, 34 140 dogs were included in
Publikováno v:
Livestock Production Science, 80(3), 211-220
Livestock Production Science 80 (2003) 3
Livestock Production Science 80 (2003) 3
The relationship between somatic cell scores (SCS) and longevity was assessed for Italian Holstein–Friesian dairy cows using survival analysis. The data of somatic cell count (SCC) test day information of 512 979 cows were provided by nine province
Publikováno v:
Journal of Dairy Science, 85(11), 3115-3123
Journal of Dairy Science 85 (2002) 11
Journal of Dairy Science 85 (2002) 11
Variance components and breeding values for protein yield were estimated with REML without and with correction for heterogeneity of variances. Three different sire models were applied, which all accounted for genotype x environment (G x E) interactio
Publikováno v:
Animal Science, 75, 197-207
Animal Science 75 (2002)
Animal Science 75 (2002)
The aims of this study were to assess genetic variances, trends and mode of inheritance for hip and elbow dysplasia in Finnish dog populations. The influence of time-dependent fixed effects in the model when estimating the genetic trends was also stu
Publikováno v:
Livestock Production Science. 76:137-151
Economic values in Irish pounds (IR£) were calculated for milk, fat and protein yields (IR£ cow−1 year−1 kg−1), survival (IR£ cow−1 year−1 % survival−1), and calving interval (IR£ cow−1 year−1 day−1) using a farm model for pastu
Autor:
X.S. Jiang, A.F. Groen
Publikováno v:
Journal of Animal Breeding and Genetics. 116:111-125
Publikováno v:
Poultry Science. 78:307-316
The commercially grown broiler usually is a crossbred from specialized purebred sire and dam lines. The position of a purebred line in the crossbreeding system influences its genetic contribution to expression of productive and reproductive performan