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Problems with Congestive Heart Failure and Lameness That Have Increased in Grain-Fed Steers and Heifers.
Animals (Basel)
September 2024
Department of Animal Science, Colorado State University, Fort Collins, CO 80523, USA.
Grain-fed steers and heifers have increasing problems with both lameness and congestive heart failure. Congestive heart failure used to be limited to cattle raised at high altitudes. It is now occurring at much lower elevations.
View Article and Find Full Text PDFA prospective cohort study of factors associated with the digital cushion thickness in dairy cattle.
J Dairy Sci
September 2024
Department of Livestock and One Health, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Leahurst Campus, Liverpool CH64 7TE, United Kingdom.
Key factors such as stage of lactation, parity, and body fat reserves have been associated with the digital cushion thickness (DCT), however, there are discrepancies between the results of previously published studies. The objective of this study was to examine the association of stage of lactation, body fat reserves, parity, and lesion incidence with DCT in a large cohort of intensively monitored cows. Across 4 UK farms, 2,352 cows were prospectively enrolled and assessed at 4 time points: before calving (T1-Precalving), immediately after calving (T2-Calving), in early lactation (T3-Early), and in late lactation (T4-Late).
View Article and Find Full Text PDFEffects of extending dairy cow longevity by adjusted reproduction management decisions on partial net return and greenhouse gas emissions: A dynamic stochastic herd simulation study.
J Dairy Sci
September 2024
Business Economics Group, Department of Social Sciences, Wageningen University, 6706 KN Wageningen, the Netherlands.
Prolonging dairy cattle longevity is regarded as one of the options to contribute to more sustainable milk production. Because failure to conceive is one of the main reasons for culling, this study investigates how adjustments in reproduction management affect partial net return at herd level and greenhouse gas emissions per unit of milk, using a dynamic stochastic simulation model. The effects of reproduction decisions that extend cattle longevity on milk yield, calving interval and pregnancy rate were derived from actual performance of Dutch commercial dairy cows over multiple lactations.
View Article and Find Full Text PDFAn abattoir study of the prevalence of foot lesions and claw measurements in water buffalo in Egypt.
BMC Vet Res
January 2024
Department of Surgery, Anaesthesiology, and Radiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt.
Background: Lameness has been associated with compromised animal welfare and reduced productivity in dairy cattle herds worldwide. However, little is known about the prevalence of claw lesions in the dairy buffalo population in Egypt. Furthermore, the optimum measurements for claw trimming in buffalo are unknown.
View Article and Find Full Text PDFFree-choice pasture access for dry cows: Effects on health, behavior, and milk production.
J Dairy Sci
November 2023
Department of Agriculture, Food, Environment and Forestry, University of Florence, IT50145 Florence, Italy.
Allowing dairy cattle to access pasture or outdoor areas is known to be beneficial for cows' welfare and is considered important by the general public. However, in confinement-based operations with high-yielding cows, pasture access may be difficult to implement, especially for lactating animals. Providing pasture access to heifers and dry cows seems a more feasible option for most farms.
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