Consequences of selection for milk yield from a geneticist's viewpoint
LB Hansen - Journal of dairy science, 2000 - Elsevier
The annual genetic trend for milk yield of Holsteins in the United States has accelerated with
time and had means of 37kg during the 1960s, 79kg during the 1970s, 102kg during the …
time and had means of 37kg during the 1960s, 79kg during the 1970s, 102kg during the …
New aspects in the pathogenesis of abomasal displacement
K Doll, M Sickinger, T Seeger - The Veterinary Journal, 2009 - Elsevier
Impaired abomasal motility and an increased accumulation of gas are prerequisites for
displacement of the abomasum in the cow. Predisposing factors are the breed (eg Holstein …
displacement of the abomasum in the cow. Predisposing factors are the breed (eg Holstein …
[HTML][HTML] Analysis of the relationship between type traits and functional survival in Canadian Holsteins using a Weibull proportional hazards model
The aim of this study was to explore the impact of type traits on the functional survival of
Canadian Holstein cows using a Weibull proportional hazards model. The data set …
Canadian Holstein cows using a Weibull proportional hazards model. The data set …
Abomasal displacement in the bovine—a review on character, occurrence, aetiology and pathogenesis
T Geishauser - Journal of Veterinary Medicine Series A, 1995 - Wiley Online Library
Literature on the subject of character, history, occurrence, causes and pathogenesis of
abomasal displacement in the bovine is listed and summarized. The chapter on occurrence …
abomasal displacement in the bovine is listed and summarized. The chapter on occurrence …
Genetic parameters and trends of milk, fat, days open, and body weight after calving in North Carolina experimental herds
JM Abdallah, BT McDaniel - Journal of Dairy Science, 2000 - Elsevier
The main objective of this study was to estimate genetic trends for 3.7% FCM, fat yield, days
open, and predicted body weight after calving in six experimental dairy herds owned by the …
open, and predicted body weight after calving in six experimental dairy herds owned by the …
Productive life and reasons for disposal of Holstein cows selected for large versus small body size
LB Hansen, JB Cole, GD Marx, AJ Seykora - Journal of dairy science, 1999 - Elsevier
Holstein cows were compared for direct and correlated responses to selection for large
versus small body size. The divergent selection lines differed for body weight, body …
versus small body size. The divergent selection lines differed for body weight, body …
Response of health care to selection for milk yield of dairy cattle
WP Jones, LB Hansen, H Chester-Jones - Journal of Dairy Science, 1994 - Elsevier
A selection experiment began during 1964 to measure long-term responses to selection of
dairy cattle based only on milk yield. An unselected control group of cows was maintained …
dairy cattle based only on milk yield. An unselected control group of cows was maintained …
[HTML][HTML] Scientific report on the effects of farming systems on dairy cow welfare and disease
EFS Authority - Efsa Journal, 2009 - ncbi.nlm.nih.gov
This report categorises European dairy farming according to internationally used
classifications of farming systems. Human and exogenous institutional factors are also …
classifications of farming systems. Human and exogenous institutional factors are also …
Health treatment cost of Holsteins in eight high-performance herds
MR Donnelly, AR Hazel, LB Hansen, BJ Heins - Animals, 2023 - mdpi.com
Simple Summary Health treatments of Holsteins were recorded over a 7-year period and
partitioned into five categories (mastitis, reproduction, lameness, metabolic, and …
partitioned into five categories (mastitis, reproduction, lameness, metabolic, and …
[HTML][HTML] Relationship between type traits and longevity in Canadian Jerseys and Ayrshires using a Weibull proportional hazards model
A Sewalem, GJ Kistemaker, BJ Van Doormaal - Journal of Dairy Science, 2005 - Elsevier
The aim of this study was to use a Weibull proportional hazards model to explore the impact
of type traits on the functional survival of Canadian Jersey and Ayrshire cows. The data set …
of type traits on the functional survival of Canadian Jersey and Ayrshire cows. The data set …