Effect of the degree of forage shredding on the chewing activity of cows
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 102, Issue
Abstract
The material of studies on the effect of grinding (shredding) roughage on the level of chewing activity of dairy cows is presented. Round-the-clock monitoring of the chewing process using an electronic system based on HR-Tag ™ transponders is an effective tool for controlling the physiological state of cows, as well as the technological process on a dairy farm. It is proved that an increase in the size of coarse fodder particles leads to an increase in the chewing activity of cows by 2.7-6.2%. An increase in the content of effective fiber in the feed mixture causes higher motor activity in cows less due to the degree of fodder grinding fineness than to the fact of changes in the structure of the diet itself. It violates the way of feed consumption by cows (their way of life), and induces their more active search of the usual feed mixture. The productive effect of the feed mixture within the efficiency of a slasher depends not so much on the degree of filtration of fibrous fibers, but on the stability of the use of mechanisms. The periodic change in the use of a slasher has a negative effect on the lactic productivity of dairy cows.
Authors and Affiliations
Ю. Ю. Баняс, В. І. Костенко
Dynamics of indices of productional process in sunflower plants depending on hybrid composition, plant density and microfertilizers
According to the results of field studies, it was found that the maximum duration of the growing season at the level of 134 days was in the Megasan hybrid, and in other hybrids this index was reduced to 124-130 days or b...
Evaluation of economic and ecological feasibility of implementation of anaerobic and photoaerobic biotechnologies for the poultry
The potential of combined system of poultry wastes utilization involving stages of anaerobic conversion and microalgae culturing is discussed. Described hypothetical system provides the most complete utilization and gene...
Agroeconomic aspects of optimizing the technology of growing onions in the South of Ukraine
The article presents the results of studies on the productivity of onion depending on irrigation regimes and plant protection schemes against pathogens when growing the crop in the system of drip irrigation in Southern U...
A study of the formation of tomato hybrids productivity depending on the hybrid composition and plant population density under irrigation in Southern Ukraine
The paper studies the formation of tomato hybrids productivity depending on the hybrid composition and stand density under irrigation in Southern Ukraine. Stand density increase is considered to be one of the main ways o...
The influence of silicon nanoparticles on Mentha piperita rhizogenesis under in vitro conditions
The study investigates the influence of silicon nanoparticles in nutrient medium on rhizogenesis of Mentha piperita L. explants in vitro conditions and on further regenerants adaptation in vivo based on the isolated tiss...