STUDY OF FUNCTIONAL PROPERTIES OF EXCHANGE OF COWS IN THE CONDITIONS OF ROBOTIZED MILKING

DOI: 10.26155 / VET.ZOO.BIO.201904011
UDC 637.112.5: 007.52

Authors

D.R. SHARIPOV, R.R. KAYUMOV
KAZAN STATE ACADEMY OF VETERINARY MEDICINE NAMED AFTER N.E. BAUMAN

Abstract

The article presents the results of studies conducted on two farms with robotic milking systems, to study the signs of cows that characterize their suitability for this system. It was found that not all animals comply with the requirements, which include indicators such as uniformity of development, simultaneous extrusion of quarters of the udder, high intensity of milk excretion. The distribution of one-time milk yield on quarters of the udder of cows that are milked by DeLaval VMS robots indicates the uneven development of quarters of the udder. So, if the front lobes gave almost the same milk yield - the left - 2,03 ± 0,17 kg, the right - 2,13 ± 0,18 kg, then the rear lobes gave: the left - 2,93 ± 0,24 kg, right - 3,28 ± 0,25 kg. The average value of the udder index is 40,1 ± 1,49%, the optimal value of the udder index, at which the cow is considered suitable for robotic milking, should be 42–46%. The research results show that in animals serviced by Lely Astronaut A4 robots, the front quarters are faster protruding: left - 4,18 ± 0,23 min., Right - 4,22 ± 0,27 min., Longer rear: left - 5,05 ± 0,27 minutes, the right - 4,75 ± 0,23 minutes, which also indicate the uneven development of the quarters of the udder. The characteristics of milking time and the intensity of milk elimination of the cows under study showed that 22,0–40,7% of cows fit in the optimal milking time, but is insufficient for the effective use of automated milking systems (such animals should be at least 70,0%).

Keywords

robotic milking, uniform development of the quarters of the udder, the intensity of milk removal, selection.