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Full-Text Articles in Dairy Science
Effects Of Bedding With Recycled Sand On Lying Behaviors, Udder Hygiene, And Preferences Of Lactating Holstein Dairy Cows, Heather Deanna Ingle
Effects Of Bedding With Recycled Sand On Lying Behaviors, Udder Hygiene, And Preferences Of Lactating Holstein Dairy Cows, Heather Deanna Ingle
Masters Theses
Effects of bedding with recycled sand and season on lying behaviors, stress, hygiene, and preferences of late-lactation Holstein cows were studied. Cows (n=64) were divided into 4 groups (n=8 per group) per season. In summer (Aug-Sept), cows were balanced by days in milk (268.1±11.9 d) and parity (2.0±0.2). In winter (Jan-Feb), mean DIM was 265.5±34.1 d. Cows were assigned to one of two treatments (trt) using a crossover design with each trt lasting 7-d (no-choice phase): bedding with recycled sand (RS; n=32) or control (CO; clean sand; n=32). Stocking density was maintained at 100%. Choice phase allowed a cow to …
The Effect Of Bedding Surface And Muscid Fly Populations On The Welfare Of Pre Weaned Holstein And Jersey Calves, Christa Anne Kurman
The Effect Of Bedding Surface And Muscid Fly Populations On The Welfare Of Pre Weaned Holstein And Jersey Calves, Christa Anne Kurman
Masters Theses
The first objective of this study was to determine the effect of bedding on the welfare of Holstein and Jersey calves housed using individual hutches bedded with gravel, rubber mats, or sand. A second objective was to determine the effects of stable and house fly populations on calf welfare. Bedding quality and fly management are aspects of improving animal welfare on dairy farms. It was hypothesized that sand or mat would increase lying time and decrease lying bouts, but not affect BW gain or feed intake in calves indicating that these bedding surfaces increased calf welfare. It was hypothesized that …