GALAXY INTERNATIONAL INTERDISCIPLINARY RESEARCH JOURNAL (GIIRJ)
ISSN (E): 2347-6915
Vol. 10, Issue 5, May. (2022)
1056
cows when assessing the milk productivity and milk quality. Keeping in mind, we have
analyzed these issues in terms of breeding in this article.
RESULTS AND DISCUSSIONS
The analysis shows that the selecting of cattle depends on outer appearance and body. But these
features can’t help to define livestock yield. Therefore, special calculations were made to
determine the milk-yields of cows. That is, therewas carried out milk monitoring every 10 days
3 times a month during a year. The cows are milk made at AFIMILK, the milking department
of the cattle farm to determine the amount of milk that is taken while breastfeeding. The milk
lasting qualities was equal to 105.9 in the cows of the experimental group I. Proportions of cows
in the experimental group II, III, IV, V and VI were as follows: 103,8; 102,6; 101,9; 100,4 and
101,4 or the difference between equivalents are: 2,1; 3,3; 4,0; 5,5 and 4,5.
It is clear that the best results were observed in Dutch cows. The milk yield index is well-
proportioned to the number of cows in the experimental group: 43,3-96,6; 49,7-95,3; 57,6-96,8;
69,9-97,6; 70,8-97,7; 70,5-97,1 animal units.
Increase in milk productivity was observed in all cows in the experimental group during 3
months of lactation period. However, the cows of Holstein breed of Dutch selection of group IV
were giving milk at the amount of 1117,7 kg during the 3 months of lactation period.
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
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