Increased take-off level in automatic milking systems - effects on milk flow, milk yield and milking efficiency at the quarter level.
| Autor: | Ferneborg S; Department of Animal and Aquacultural Sciences, Faculty of Biosciences,Norwegian University of Life Sciences,P. O. Box 5003 NMBU, 1432 Ås,Norway., Thulin M; The Beijer Laboratory of Animal Science,Swedish University of Agricultural Sciences,P. O. Box 7024, 750 07 Uppsala,Sweden., Agenäs S; Department of Animal Nutrition and Management,Swedish University of Agricultural Sciences,P. O. Box 7024, 750 07 Uppsala,Sweden., Svennersten-Sjaunja K; Department of Animal Nutrition and Management,Swedish University of Agricultural Sciences,P. O. Box 7024, 750 07 Uppsala,Sweden., Krawczel P; Department of Animal Science,University of Tennessee,2506 River Drive, 258 Brehm Animal Science Bldg, Knoxville, TN 37996,USA., Ternman E; Department of Animal Science,Aarhus University,Blichers Allé 20, P.O. Box 50, DK-8830 Tjele,Denmark. |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of dairy research [J Dairy Res] 2019 Feb; Vol. 86 (1), pp. 85-87. |
| DOI: | 10.1017/S002202991800078X |
| Abstrakt: | This research communication describes how different detachment levels (0.48, 0.3 and 0.06 kg milk/min) at the quarter-level affect milk flow profiles and overall milking efficiency in automatic milking systems. We hypothesized a higher detachment level would result in greater mean flow rates without affecting the volume of harvested milk per cow during 24 h compared to lower detachment levels. The data suggest milk flow decreased to a rate below the overmilking limit within the 6-s delay time required for termination in all treatments, but the duration of overmilking was shorter for the greatest detachment level compared to the other treatments. We conclude that setting a detachment level at a greater milk flow rate reduces the duration of overmilking without affecting the amount of milk harvested when applied to cows in mid-lactation during quarter-level milking. We also suggest that the steepness of the decline phase of the milk flow curve might have a larger effect than the actual detachment level on the duration of overmilking. |
| Databáze: | MEDLINE |
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