Results 21 to 30 of about 500,676 (264)

Cow, farm, and herd management factors in the dry period associated with raised somatic cell counts in early lactation [PDF]

open access: yes, 2008
This study investigated cow characteristics, farm facilities, and herd management strategies during the dry period to examine their joint influence on somatic cell counts (SCC) in early lactation.
Browne, W. J.   +10 more
core   +1 more source

Cow, farm, and management factors during the dry period that determine the rate of clinical mastitis after calving [PDF]

open access: yes, 2007
The purpose of the research was to investigate cow characteristics, farm facilities, and herd management strategies during the dry period to examine their joint influence on the rate of clinical mastitis after calving.
Browne, W. J.   +10 more
core   +1 more source

The national cohort of dairy farms - a data collection platform for mastitis research in Canada [PDF]

open access: yes, 2011
Costs and feasibility of extensive sample collection and processing are major obstacles to mastitis epidemiology research. Studies are often consequentially limited, and fundamental mastitis researchers rarely have the opportunity to conduct their work ...
Barkema, H W   +17 more
core   +1 more source

Cleanliness scores as indicator of klebsiella exposure in dairy cows [PDF]

open access: yes, 2008
This study was designed to explore the relationship between cow and udder cleanliness scores and the risk of isolation of Klebsiella spp. from lower hind legs and teat ends, respectively. The distribution of Klebsiella species was compared among isolates
Schukken, Y. H.   +11 more
core   +1 more source

Relationship between dairy cow genetic merit and profit on commercial spring calving dairy farms [PDF]

open access: yes, 2011
peer-reviewedBecause not all animal factors influencing profitability can be included in total merit breeding indices for profitability, the association between animal total merit index and true profitability, taking cognisance of all factors associated
Cromie, A. R.   +7 more
core   +1 more source

Expression profiles of genes regulating dairy cow fertility: recent findings, ongoing activities and future possibilities [PDF]

open access: yes, 2008
Subfertility has negative effects for dairy farm profitability, animal welfare and sustainability of animal production. Increasing herd sizes and economic pressures restrict the amount of time that farmers can spend on counteractive management Genetic ...
Pas, M.F.W., te   +4 more
core   +1 more source

Dairy cow longevity and farm economic performance: Evidence from Swedish dairy farms

open access: yes, 2023
The longevity of dairy cows is mainly determined by farmers' subjective culling decisions and can be linked to the environmental impact of dairy production and to the social acceptance of the industry.
S. Agenäs   +14 more
core   +1 more source

Estimation of pedigree errors in the UK dairy population using microsatellite markers and the impact on selection [PDF]

open access: yes, 2002
The proportion of cows in the UK dairy herd whose sires were misidentified was estimated using DNA markers. Genetic marker genotypes were determined on 568 cows (from 168 milk samples and 400 hair samples) and 96 putative sires (from semen samples).
Visscher, PM   +11 more
core   +1 more source

Body condition score and live-weight effects on milk production in Irish Holstein-Friesian dairy cows [PDF]

open access: yes, 2007
peer-reviewedThe objective of the present study was to quantify the relationships among body condition score (BCS; scale 1 to 5), live weight (WT) and milk production in Irish Holstein-Friesian spring calving dairy cows.
Buckley, Frank   +2 more
core   +1 more source

Brief of requirements of the dairy cow [PDF]

open access: yes, 2009
This report lists the brief of requirements of the dairy cow, based on her needs (also listed). The BoR indicates the actor’s needs with regards to the animal husbandry system.
Schepers, F.   +4 more
core  

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