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Abstract

The successful genetic selection for higher milk production caused a dramatic decline in the reproductive performance of dairy cows all over the world during the last decades. Achievement of optimum herd reproductive performance (calving interval of 12 or 13 months with the first calf born at 24...

Author(s)
Szenci, O.; Lénárt, L.; Choukeir, A.; Szelényi, Z.; Buják, D.; Albert, E.; Kézér, F. L.; Zouting, Y.; Kovács, L.
Publisher
Herman Ottó Institute Nonprofit Ltd., Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2019, 141, 1, pp 11-23
Abstract

Welfare aspects of obstetrical assistance were studied in multiparous Holstein-Friesian cows (n=176) with (1) unassisted calving in an individual pen (UCIP; n=42), (2) unassisted calving in a group pen (UCG; n=48), (3) assisted calving with appropriately timed obstetrical assistance (ACAP; n=50),...

Author(s)
Kovács, L.; Kézér, F. L.; Szenci, O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2016, 99, 9, pp 7568-7573
Abstract

This study aimed to investigate the relationship between cow reproductive performance and welfare evaluated at the herd level using the Welfare Quality protocol. The 11 criteria, four principles (good feeding, good housing, good health and appropriate behavior, scale 0-100) and overall welfare...

Author(s)
Grimard, B.; Roches, A. de B. des; Coignard, M.; Lehébel, A.; Chuiton, A.; Mounier, L.; Veissier, I.; Guatteo, R.; Bareille, N.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Journal, 2019, 248, pp 1-7
Abstract

The objectives of this study were to describe on-farm mortality and to investigate cow- and herd-level risk factors associated with on-farm mortality in Midwest US dairy herds using lactation survival analysis. We analyzed a total of approximately 5.9 million DHIA lactation records from 10 Midwest...

Author(s)
Shahid, M. Q.; Reneau, J. K.; Chester-Jones, H.; Chebel, R. C.; Endres, M. I.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 7, pp 4401-4413
AbstractFull Text

Foot injuries are one of the most important health problems in dairy herds. The objective of this study was to evaluate the effect of genetic and environmental factors on the occurrence of foot injuries (FI) in Costa Rica's dairy cattle. A total of 130 844 cows (417 895 lactations) from 358 herds...

Author(s)
Solano-López, M.; Vargas-Leitón, B.; Saborío-Montero, A.; Pichardo-Matamoros, D.
Publisher
Universidad de Costa Rica, Alajuela, Costa Rica
Citation
Agronomía Mesoamericana, 2018, 29, 1, pp 123-140
Abstract

Phosphorus (P) deficiency in early lactating dairy cows is receiving increased attention because of incentives aiming at curtailing environmental pollution with P by reducing dietary P in ruminant diets. An in-vitro study using bovine hepatocytes incubated for 7 days with phosphate (Pi)...

Author(s)
Grünberg, W.; Witte, S.; Cohrs, I.; Golbeck, L.; Brouwers, J. F.; Müller, A. E.; Schmicke, M.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2019, 14, 7, pp e0219546
Abstract

Fall-calving, mature Angus and Simmental × Angus cows (n=251 total) and their progeny were used to evaluate the effects of late gestation dried distillers grains plus solubles (DDGS) supplementation on cow performance and progeny growth and carcass characteristics. Cows were blocked by breed and...

Author(s)
Wilson, T. B.; Schroeder, A. R.; Ireland, F. A.; Faulkner, D. B.; Shike, D. W.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2015, 93, 10, pp 4843-4851
Abstract

The objective of this study was to determine the economic costs associated with different reasons for cow culling or on-farm mortality in a pasture-based seasonal system. A bioeconomic model was developed to quantify costs associated with the different farmer-recorded reasons and timing of cow...

Author(s)
Kerslake, J. I.; Amer, P. R.; O'Neill, P. L.; Wong, S. L.; Roche, J. R.; Phyn, C. V. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 2, pp 1795-1803
Abstract

Black vultures (Coragyps atratus) are often present near calving sites, and under this situation they may play a positive role by removing animal carcasses and afterbirth or a negative role by attacking neonate calves or disturbing cow-calf behaviours following parturition. Cow-calf behaviour was...

Author(s)
Toledo, L. M.; Costa, M. J. R. P. da; Schmidek, A.; Jung, J.; Ciryllo, J. N. S. G.; Cromberg, V. U.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2013, 7, 3, pp 469-475
Abstract

On-farm emergency slaughter (OFES), whereby inspection, stunning, and bleeding occur on the farm before the carcass is transported to a slaughterhouse, is permitted in some jurisdictions as a means to avoid inhumane transportation while salvaging meat from injured animals. However, OFES is...

Author(s)
Koralesky, K. E.; Fraser, D.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 7, pp 6413-6418

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