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Full-Text Articles in Dairy Science
Benchmarking Cow Comfort On North American Freestall Dairies: Lameness, Leg Injuries, Lying Time, Facility Design, And Management For High-Producing Holstein Dairy Cows, Marina A.G. Von Keyserlingk, A. K. Barrientos, K. Ito, E. Galo, Daniel M. Weary
Benchmarking Cow Comfort On North American Freestall Dairies: Lameness, Leg Injuries, Lying Time, Facility Design, And Management For High-Producing Holstein Dairy Cows, Marina A.G. Von Keyserlingk, A. K. Barrientos, K. Ito, E. Galo, Daniel M. Weary
Housing and Confinement of Farm Animals Collection
In this paper, we describe a novel approach to corporate involvement in on-farm assessment, driven by the desire to provide a service for dairy producers and to create a vehicle for engagement on issues of dairy cow welfare. This program provides producers with feedback on animal-based (including gait score, leg injuries, and lying time) and facility-based (including freestall design, bedding practices, feed bunk design and management, and stocking density) measures that can be used to better address their management goals. The aim of this paper is to describe variation in the prevalence of lameness and leg injuries, lying behavior, facility …
Association Between Stall Surface And Some Animal Welfare Measurements In Freestall Dairy Herds Using Recycled Manure Solids For Bedding, A. W. Husfeldt, M. I. Endres
Association Between Stall Surface And Some Animal Welfare Measurements In Freestall Dairy Herds Using Recycled Manure Solids For Bedding, A. W. Husfeldt, M. I. Endres
Housing and Confinement of Farm Animals Collection
The objective of this cross-sectional study was to investigate the association between stall surface and some animal welfare measurements in upper Midwest US dairy operations using recycled manure solids as bedding material. The study included 34 dairy operations with herd sizes ranging from 130 to 3,700 lactating cows. Forty-five percent of the herds had mattresses and 55% had deep-bedded stalls. Farms were visited once between July and October 2009. At the time of visit, at least 50% of the cows in each lactating pen were scored for locomotion, hygiene, and hock lesions. On-farm herd records were collected for the …
Effect Of Pen Size, Group Size, And Stocking Density On Activity In Freestall-Housed Dairy Cows, E. Telezhenko, Marina A.G. Von Keyserlingk, A. Talebi, Daniel M. Weary
Effect Of Pen Size, Group Size, And Stocking Density On Activity In Freestall-Housed Dairy Cows, E. Telezhenko, Marina A.G. Von Keyserlingk, A. Talebi, Daniel M. Weary
Housing and Confinement of Farm Animals Collection
The purpose was to determine the effects of the physical dimensions of the pen and group size and stocking density on cow activity. Cows (randomly assigned to 4 groups of 6 animals each) were tested in pens with 24 or 12 lying places and in groups with 12 or 6 cows. All groups were tested in each of the 4 treatments with treatment order allocated using a 4 × 4 Latin square. The distance moved and the number of movements were calculated using 5-min scan sampling of video recordings over a 48-h period. Time spent lying down, number of lying …
Extended Grazing: A Detailed Analysis Of Irish Dairy Farms, D. Läpple, T. Hennessy, M. O'Donovan
Extended Grazing: A Detailed Analysis Of Irish Dairy Farms, D. Läpple, T. Hennessy, M. O'Donovan
Farm Animal Husbandry Collection
Profitability and factors affecting grazing season length were econometrically analyzed using a representative sample of Irish dairy farms. The objective of this study was to explore what potential exists on Irish dairy farms to extend the grazing season and to quantify the possible economic benefits that result from lengthening the grazing season. Regression results indicate that location factors affect the length of the grazing season, but even when physical factors are controlled, farmer characteristics, such as education, also affect the grazing season length. The results of a panel data analysis show that significant cost reductions can be achieved by extending …
Mammary Cell Activity And Turnover In Dairy Cows Treated With The Prolactin-Release Inhibitor Quinagolide And Milked Once Daily, M. Boutinaud, V. Lollivier, L. Finot, R. M. Bruckmaier, P. Lacasse
Mammary Cell Activity And Turnover In Dairy Cows Treated With The Prolactin-Release Inhibitor Quinagolide And Milked Once Daily, M. Boutinaud, V. Lollivier, L. Finot, R. M. Bruckmaier, P. Lacasse
Physiology Collection
To assess the regulation of mammary cell activity, survival, and proliferation by prolactin (PRL), 5 Holstein cows in early lactation received daily i.m. injections of 1 mg of quinagolide, a suppressor of PRL release, for 9 wk, whereas 4 control cows received the vehicle (water) only. During the last week of treatment, one udder half was milked once a day (1×) and the other twice a day (2×). Mammary biopsies were harvested 1 wk before and 4 and 8 wk after the start of quinagolide treatment. The quinagolide injections reduced milk yield and resulted in lower levels of κ-casein and …