Effect of liquid feed additive temperature on dosing accuracy in feeding station for dairy cattle
2020
Chlebowski, J., Warsaw Univ. of Life Sciences (Poland) | Gaworski, M., Warsaw Univ. of Life Sciences (Poland) | Nowakowski, T., Warsaw Univ. of Life Sciences (Poland) | Szczesniak, A., Warsaw Univ. of Life Sciences (Poland)
Some needs to increase the efficiency of dairy production affect improvement of nutrition technology. In addition to constantly expanding the offer of liquid feed additives that complement nutrient deficiencies in the diet, manufacturers are introducing more and more innovative devices for dispensing them. The changing ambient temperature at which liquid feed additives are fed may affect their dispensing quality. Therefore the aim of this study was to determine the temperature effect of various liquid feed additives on the accuracy of their dosing in a feeding station for dairy cattle. To reach the aim of the study the test stand was built basing on the feeding station for dairy cattle. The test stand was equipped with a DeLaval membrane feeder GD 500. The operation of the feeder was based on the principle of the diaphragm pump. To determine the accuracy of dosing by the fodder membrane feeder the dosing accuracy indicator was determined. Three different liquid feed additives were used to check the inaccuracy of dosing. The tests were carried out for four different temperatures of feed additives. The highest mean value of dosing inaccuracy (about 10 %) was achieved with Glycol Plus at the temperature of 20 ºC. The results of the experiment showed the statistically significant effect of temperature and feed additive type on the dosing accuracy. As a result of the investigations it was found that in addition to the density of preparations changes in the accuracy of their dosage may be influenced by their other physical properties.
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