Elite
rams -
earrings
number
Biochemical parameters of ram blood
Quality characteristics of
lamb skin of lambs
Elite
lambs
,
(%)
Wool-fiber
quality (%)
Pigmentatio
n (%)
D
P
T
A
E
exce
llent
good
Intens
iv
black
blac
k
2110
0,145
0,350
0,170
56,3
0,473
27,2
63,6
20,0
80,0
18,9
2701
0,132
0,280
0,300
60,5
0,510
75,0
25,0
50,0
50,0
75,0
3568
0,128
0,345
0,210
46,6
0,730
46,2
53,8
50,0
50,0
42,9
0268
0,105
0,370
0,195
38,7
0,490
22,7
65,0
42,9
57,1
36,4
6836
0,115
0,300
0,320
41,0
0,380
54,5
45,5
54,5
45,5
41,0
2999
0,162
0,220
0,310
48,7
0,390
47,1
52,9
77,7
22,3
41,2
2797
0,151
0,351
0,180
52,0
0,680
43,4
56,6
63,6
36,4
50,0
2643
0,170
0,235
0,360
53,8
0,593
58,2
41,8
90,9
9,1
53,3
Average
0,138
±0,007
0,306
±0,02
0,25
±0,02
49,7
±2,54
0,530
±0,19
46,8
5,05
56,2
43,8
44,8
European Scholar Journal (ESJ)
__________________________________________________________________________
46 | P a g e
Table 4
Distribution and frequency of alleles on low and high levels of potassium in the blood of Karakul sheep
According to the table, 224 (72.9 percent) of the 308 head of cattle had high potassium levels and 84 (27.1 percent)
had low blood potassium levels. The frequency of the recessive allele was calculated according to the Hardy-
Weinberg formula in the sample of sheep studied: K
h
-0.815– 0.883, and the dominant allele K
L
- 0.117–0.185.
Assuming that the frequency of the allele of Surkhandarya breed of red sheep is 100%, it is 107.0% in black
sheep and -108.3% in Bukhara sheep. The difference is statistically significant. (R <0.001)
CONCLUSION
Surkhandarya pedigree rams determine the amount of biologically active substances (enzymes, potassium,
etc.) in the blood, use of selected elite rams in breeding and selection work, improve the quality of sur karakul skins,
preserve, restore and increase the gene pool of unique and valuable sur karakul sheep creates opportunities.
LIST OF USED LITERATURE
1.
Aliev D.D. Changes in the amount of nucleic acids and potassium in the blood of Karakul sheep depending on
their physiological functions. Abstract of the dissertation of the candidate of biological sciences. Toshkent.,
2010. - 21 p.
2.
Aripov U.Kh. Scientific basis for increasing the productivity of Karakul sheep: Author's abstract. dis. doct.
agricultural sciences. - Tashkent, 1992. – 38 p.
3.
Aripov U.Kh., Aliev DD, Omonov MI, Narzullaev Kh. Methodological recommendations for preserving the gene
pool of Karakul sheep of the Surkhandarya Sura. Samarkand .: 2017, 28 p.
4.
Gigineishvili N.S. Successes and tasks of colored karakul breeding // Journal of Karakul breeding. Tashkent,
1979. - Iss. X1. - S. 35-36.
5.
Erokhin A.I., Drozdenko N.P., Duskin Yu.P. Biochemical basis of sheep breeding. M.: 1977, pp. 16-19.
Color and variety
number
(head)
NK-type
LK-type
Frequency of
alleles
n
M±m
n
M±m
K
h
K
L
Black
104
77
148,5±2,57
27
59,5±3,72
0,872
0,128
Bukhara breed type
82
58
161,9±2,78
24
63,5±2,97
0,883
0,117
Surkhandarya breed
type
122
89
131,0±1,71
33
64,3±2,11
0,815
0,185
Totall
308
224
147,1±2,35
84
62,4±2,93
0,856
0,144
Do'stlaringiz bilan baham: |