GALAXY INTERNATIONAL INTERDISCIPLINARY RESEARCH JOURNAL (GIIRJ)
ISSN (E): 2347-6915
Vol. 10, Issue 5, May. (2022)
1057
According to these indicators they can be compared to their herd mates. I, II, III, IV and V pilot
groups respectively: 580,9 кg (Р<0,001) or 51,9%, 466,8 кg (Р<0,001) or 41,7%, 417,8кg
(Р<0,001) or 37,3%, 71,9кg (Р<0,001) or 6,4% and 94,8 kg (Р<0,001) or 8,4% behind.
The overbalance on milk yield during in-milk period belongs
to cows of IV group of the
experimental cows. The milk yield of cows of that group was equal to 9637,9 кg.
It was the highest milk rate compare to their herd mates: 5613,2 кg (Р<0,001), 4648,9 (Р<0,001),
3920,8кg(Р<0,001), 591,1 кg (Р<0,001), 700,0 кg (Р<0,001).
Figure #1.Steady milk productivity of milk rate of cows in experimental group %.
It is obvious that the cows, which belong to German breeding in the IV experimental group, had
the highest level of steadiness (86.3%), while the lowest level of steadiness was shown by the
cows, related to pure breed of black and white (69%). In our research we took intoaccount and
analyzed the maximum daily amount of milk yield of the cows in experimental groups and these
data are shown in Figure #2.
igure #2.The highest milk yield of
cows in lactation period, kg.
As it is shown in Figure #2, the highest daily milk productivity was observed in cows of group
IV, which belong to Dutch breeding and it was equal to 34.8 kg. According to this rate, these
cows have a higher preference than their herd mates I, II, III and V experimental groups as
follows: 16,7кg(Р<0,01) or 48,0%, 15,7кg(Р<0,01)or 45,1 %, 13,8кg (Р<0,01) or 39,6%, 0,8кg
(Р<0,01) or 2,2%and 3,2кg (Р<0,01accordingly) or 9,1 %.
69
80
82.2
86.3
83.8
84.7
18…
19.1
21
31
31.6
34.8