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  • Author: Jan Barwicki x
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Abstract

Properly designed housing buildings, with regard to reduction of a negative influence on environment, are necessary for ensuring sustainable development in agriculture. The objective of this paper was to show the results of environmental conditions research on high milk yield dairy cattle in different housing systems. Temperature and relative humidity of air and concentrations of harmful gases − ammonia and carbon dioxide accompanying them were investigated.

Abstract

Photovoltaic systems are very efficient concerning proper utilization of solar radiation. However, the nanotechnology solution can replace the photovoltaic by the use of new production technology to lower the price of solar cells to one tenth. Sun provides nearly unlimited energy resource, but existing solar energy harvesting technologies are quite expensive and cannot compete with fossil fuels. The central part of Poland, which represents about 50 percent of the area, gives solar radiation at the level of 1000 kWh·m−2/year. Other new developments, which can help improve existing efficiency of solar systems are: diatoms utilization, artificial photosynthesis, nanoleaves and rotation solar towers.

Abstract

Paper presents research concerned utilization of natural gas in a liquid state as a new source of electrical energy generation in country side areas of Russia to use it in a small family farms and bigger agriculture enterprises. The experiment shows that alcohol and gasoline are more expensive products to be a source for electricity generation as a reserve energy supply in agriculture production areas of the country. Introduction of natural gas generator as an alternative fuel makes possible to produce low cost of electrical energy in any part of the country, what gives great potential to alternative energy supply, but especially for agriculture production on small households and also bigger enterprises

Abstract

The aim of the study was to carry out a research on the use of milking robots compared to utilization of milking parlors. There was no such study in literature on the milking farms in Poland and abroad. The presented study, except for scientific knowledge, provides also practical utilization as a good agriculture practice on the farm. Tests were carried out simultaneously in two barns belonging to the same farm. In barn K, milking was used in the rib bone milking parlor, and in barn N with milking robots. The results covering three years of research from 2016 to 2018 were presented. It was concluded that the milk yield of young cows in both barns was almost identical, while in the second and subsequent lactation, cows in barn N had higher yield. In barn N, about 3% more milk was obtained from LKS below 400 thaus. ml−1, compared to barn K. Time of cows’ utilization in both cowsheds was similar, while in barn N the life efficiency of culled cows was higher by about 1,000 kg of milk. The level of deficiency and its structure, due to the number and stage of lactation, were very similar in both barns. In barn N, the uniformity of milk production throughout the year was more even compared to barn K. There were reserves in the use of the milking robot due to the low number of cows per milking stand and the need to better adaptation of milking times to current cow performance. The milking robot improves cow welfare and ensures high milk yield and good cytological quality of milk.