scholarly journals Productive qualities of holsteinized black-and-white cattle

2021 ◽  
Vol 848 (1) ◽  
pp. 012068
Author(s):  
N A Fedoseeva ◽  
O V Gorelik ◽  
O E Likhodeevskaya ◽  
I V Knysh ◽  
G A Likhodeevskij
Keyword(s):  
Black And White ◽  
White Cattle

The improvement of the type Karatomar of Black-and-White cattle breed under the conditions of Northern Kazakhstan

2020 ◽  
pp. 23-31
Author(s):  
L. Ovchinnikova ◽  
E. Babich
Keyword(s):  
Research Work ◽  
Cattle Breed ◽  
Reproductive Traits ◽  
Farm Animals ◽  
Development Indicators ◽  
Black And White ◽  
Breed Type ◽  
Northern Kazakhstan ◽  
White Breed ◽  
White Cattle

In the Republic of Kazakhstan over the past decade positive changes have been observed in increasing the number of farm animals, increasing their productivity, and increasing the gross production of milk, meat and other products. At the same time the development of dairy cattle breeding is mainly due to the breeding of Black-and-White, Red Steppe, Simmental breeds and their intra-breed types as well as imported from abroad Holstein breed. The purpose of the research was to analyze ways to improve the intra-breed type Karatomar of Black-and-White breed in Northern Kazakhstan. Research work has been carried out on breeding animals such as Karatomar type cattle of Black-and-White breed in LLP “Experimental farm Zarechnoe” in the Kostanay district in the Kostanay region. The dynamics of growth and development indicators, reproductive traits of heifers of a new intra-breed type Karatomar of Black-and-White cattle have been studied. A comprehensive assessment of their economically useful traits in the first lactation, determined by the resistance of animals to climatic and forage conditions, the efficiency of breeding of animals of different genotypes has been conducted. It has been found that the replacement heifers – daughters of American breeding sires inherited precocity and showed higher growth energy after 6 months of age and continued to grow rapidly until 18 months. The advantage in metabolism was in the daughters of Holstein sires of the American selection Orbit 4078, and the increased immune status of the organism in the daughters of the sire of the domestic selection Yamal 975 as the most adapted to the conditions of Northern Kazakhstan. The best ability to increasing the milk yield, stable lactation activity, high milk productivity, gross content of dry matter and nonfat milk solids have been characterized by the daughters of sires of the American selection Orbit 4078 and Lowrider 4129. Analysis of economic indicators of milk production has been shown that from cows – daughters of sires Orbit 4078 and Lowrider 4129 for 305 days of lactation received 15,8 and 15,2 % more milk of base fat, the expenditures of EFU per 1 kg of production was lower by 10,2 and 5,9 %. A higher level of profitability has been observed in the group of daughters of the sires Orbit 4078 – 35,5 % and Lowrider 4129 – 33,1 %, which was 8,5 and 10,8 % higher than in the group of daughters of the sire Yamal 975.

scholarly journals Comparative assessment of productive qualities of holsteinized black-and-white cattle by lines

2021 ◽  
Vol 848 (1) ◽  
pp. 012082
Author(s):  
O E Likhodeevskaya ◽  
O A Lihodeevskaya ◽  
O V Gorelik ◽  
T N Makarova ◽  
I A Timinskaya
Keyword(s):  
Comparative Assessment ◽  
Black And White ◽  
White Cattle

scholarly journals Protein status of holshtinized black and white cattle

2021 ◽  
Vol 36 ◽  
pp. 06023
Author(s):  
O.I. Sebezhko ◽  
R.V. Mayer ◽  
E.I. Tarasenko ◽  
V.G. Marenkov ◽  
V.V. Garth
Keyword(s):  
Protein Metabolism ◽  
Phenotypic Variability ◽  
Reference Intervals ◽  
Milk Productivity ◽  
Black And White ◽  
Protein Status ◽  
Biochemical Studies ◽  
White Breed ◽  
White Cattle ◽  
High Level

We studied protein metabolism in Holsteinized black-and-white cattle. The researches were conducted in the Kuzbass at OJC «Vaganovo». Blood sample was taken from each cow, according to generally accepted of methods and analyzed in the laboratory of biochemistry from Novosibirsk State Agrarian University by using standard kits of biochemical studies on a biochemical semiautomatic analyzer Photometer 5010 V5 +. The indicators of protein metabolism were established in the blood serum of Holsteinized black-and-white cattle in average values; creatinine was characterized by the lowest phenotypic variability. The greatest positive relationship was found between albumin/globulin coefficients and albumin (r = 0.765). The reference intervals were calculated for cows of the 3rd lactation of the Holsteinized black-and-white breed with a high level of milk productivity (9-10 thousand kg): total protein 62.02-87.58 g / l; albumin 21.05-36.09 g / l; urea 2.2-4 mmol / l; creatinine 50-71 μmol / l; albumin-globulin coefficients 0.35-1.16. The data obtained can be used for assess the interior of animals.

MILK PRODUCTIVITY OF BLACK-AND-WHITE CATTLE WITH DIFFERENT GENOTYPES OF PROLACTIN AND SOMATOTROPIN

2021 ◽  
pp. 21-25
Author(s):  
Л.Р. ЗАГИДУЛЛИН ◽  
Р.Р. ШАЙДУЛЛИН ◽  
Т.М. АХМЕТОВ ◽  
С.В. ТЮЛЬКИН ◽  
А.Б. МОСКВИЧЕВА
Keyword(s):  
Protein Content ◽  
Milk Yield ◽  
Milk Fat ◽  
Milk Protein ◽  
Milk Productivity ◽  
Black And White ◽  
Gh Gene ◽  
White Cattle ◽  
Fat Yield ◽  
Prl Gene

Изучена взаимосвязь аллельных вариантов генов пролактина и соматотропина с показателями молочной продуктивности коров черно-пестрой породы по 1 и 3 лактации. У первотелок, как и у полновозрастных животных,  наиболее высокий удой (4642 и 6240 кг), количество молочного жира (174,1 и 215,0 кг) и молочного белка (149,0 и 182,5 кг) достигнуты в группе с генотипом PRL АА. По массовой доле жира и белка в молоке коровы с генотипом PRL ВВ достоверно превосходили животных с генотипом PRL АА на 0,12% (Р<0,05) и 0,05% (Р<0,05) соответственно. По гену соматотропина наибольший уровень молочной продуктивности выявлен у коров с генотипом GH LL при достоверном преимуществе над GH VV у первотелок по удою на 439 кг (Р<0,01), выходу молочного жира — на 13,6 кг (Р<0,001), выходу молочного белка — на 15,3 кг (Р<0,01). У полновозрастных коров превышение над остальными группами было только по удою — на 219—548 кг (Р<0,05). Наибольшая жирномолочность характерна животным с генотипом GH VV по 1 лактации — 3,83% и по 3 лактации — 3,82%, а лучшая белковомолочность — коровам, имеющим аллель V гена GH:  3,21 и 3,23% соответственно. Полученные данные свидетельствуют о более высоком уровне молочной продуктивности у коров с генотипом PRL АА и GH LL, но лучшая жирномолочность и белковомолочность отмечены у особей, имеющих в своем генотипе аллели В гена PRL и V гена GH. The interrelation of allelic variants of prolactin and somatotropin genes with indicators of milk productivity of black-and-white cows for the 1st and 3rd lactation was studied. The highest milk yield (4642 and 6240 kg) amount of milk fat (174.1 and 215.0 kg) and milk protein (149.0 and 182.5 kg) were in the group with the PRL AA genotype in first-calf heifers as well as in full-age animals. In terms of the mass fraction of fat and protein of milk, the cows with the PRL BB genotype significantly exceeded animals with the PRL AA genotype by 0.12% (P<0.05) and 0.05% (P<0.05), respectively. According to the somatotropin gene, the highest level of milk productivity was revealed in cows with the GH LL genotype with a significant advantage over GH VV in first-calf heifers in milk yield by 439 kg (P<0.01), milk fat yield by 13.6 kg (P<0.001), milk protein yield by 15.3 kg (P<0.01). The excess over the other groups in full-age cows was only in terms of milk yield that was by 219-548 kg (P<0.05). The highest protein content of milk is a characteristic of animals with the GH VV genotype, 3.83% is for the 1st lactation and 3.82% is for the 3rd lactation, and the best protein content of milk in cows with V allele of the GH gene is 3.21 and 3.23%, respectively. The obtained data  indicated a higher level of milk productivity in cows with the PRL AA and GH LL genotypes but the best fat and milk content was noted in cows with alleles B of the PRL gene and V of the GH gene in their genotype.

POLYMORPHISM OF PROLACTIN AND SOMATOTROPIN GENES IN DAIRY CATTLE OF THE REPUBLIC OF TATARSTAN

2021 ◽  
pp. 22-25
Author(s):  
Р.Р. ШАЙДУЛЛИН ◽  
А.Б. МОСКВИЧЕВА ◽  
Т.Х. ФАИЗОВ ◽  
Л.Р. ЗАГИДУЛЛИН ◽  
Т.М. АХМЕТОВ ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Dna Markers ◽  
Frequency Of Occurrence ◽  
Allelic Variants ◽  
Black And White ◽  
Prolactin Gene ◽  
White Breed ◽  
White Cattle ◽  
Cattle Herds ◽  
The Republic

Изучен полиморфизм и определена частота встречаемости аллельных вариантов по генам пролактина (PRL) и соматотропина (GH) у коров в условиях двух племенных хозяйств Республики Татарстан. Объектом исследования были животные черно-пестрой породы первого (n=151) и третьего (n=168) отелов и холмогорской породы первого (n=160) и третьего (n=143) отелов. Проведено генотипирование коров по генам PRL и GH методом ДНК-диагностики. Установлено, что среди молочного скота преимущественно встречаются особи с генотипом PRL АА (70,0—77,5%), с частотой аллеля А гена пролактина — 0,83—0,87, аллеля В — 0,13—0,17. Встречаемость аллеля В была выше среди холмогорских коров (0,16—0,17). В стаде полновозрастных животных черно-пестрой породы имеется сдвиг генетического равновесия в сторону генотипов PRL AA и PRL BB (χ2=3,97; Р<0,05). В исследуемых стадах крупного рогатого скота выражено преимущество генотипа GH LL с частотой встречаемости 51,0—79,2%. Встречаемость генотипа GH VV у черно-пестрого скота составила 2,0—2,4%, у холмогорского — 5,6—7,0%. Аллель L гена соматотропина преобладает над аллелем V в обеих породах. При этом чаще встречаемость аллеля L GH среди коров холмогорской породы (0,28—0,29). У холмогорских коров больше представлены редкие и желательные аллели генов PRL и GH. Чтобы повысить встречаемость «предпочтительных» в хозяйственном отношении генотипов и аллелей ДНК-маркеров, необходимо в большей степени использовать быков-производителей с желательными аллелями PRL и GH, а именно В и V соответственно. The polymorphism was studied and the frequency of occurrence of allelic variants for the genes of prolactin (PRL) and somatotropin (GH) was determinedin cows in two bred livestock farms of the Republic of Tatarstan. The object of the study were animals of the black-and-white breed of the first (n=151) and third (n=168) calving and the Kholmogory breed of the first (n=160) and third (n=143) calving. Genotyping of cows for PRL and GH genes was carried out using method of DNA diagnostics. It was revealed that there were mainly individuals with the PRL AA genotype (70,0–77,5%)among dairy cattle, the frequency of the A allele of the prolactin gene was 0,83–0,87, the B allele was 0,13–0,17. The frequency of allele B was higher among Kholmogory cows (0,16–0,17). There was a shift in the genetic balance towards the PRL AA and PRL BB genotypes (χ2=3,97; Р<0,05) in the herd of full-age animals of the black-and-white breed. The advantage of the GH LL genotype was expressed with a frequency of occurrence 51,0–79,2% in the studied cattle herds. The occurence of the GH VV genotype was 2,0–2,4%in black-and-white cattle, 5,6–7,0% was in Kholmogorycattle. The L allele of the somatotropin gene predominated over the V allele in both breeds. Moreover, the occurrence of the L GH allele among cows of the Kholmogory breed (0,28–0,29) was more often. Rare and desirable alleles of the PRL and GH genes are more represented in Kholmogory cows. In order to increase the occurrence of economically “preferred” genotypes and alleles of DNA markers, it is necessary to use more stud bulls with the desired PRL and GH alleles, namely B and V, respectively.

scholarly journals Study of SNP 775C>T polymorphism within the bovine ITGB2 gene in Polish Black-and-White cattle and in local breeds of cattle

2008 ◽  
Vol 52 (No. 3) ◽  
pp. 57-61
Author(s):  
U. Czarnik ◽  
M. Galiński ◽  
T. Zabolewicz ◽  
Ch.S. Pareek
Keyword(s):  
Genetic Resource ◽  
Farm Animals ◽  
Cattle Population ◽  
Black And White ◽  
International Programme ◽  
Diversity Preservation ◽  
High Prevalence ◽  
White Cattle ◽  
Resource Diversity ◽  
I Gene

The present study addresses the characteristics of the frequency and segregation of alleles determining the SNP 775C>T polymorphism within the bovine <i>ITGB2</i> gene in the Black-and-White cattle population as well as in two endemic breeds of Polish Red and Polish White-Back cattle population qualified to the international programme of genetic resource diversity preservation in farm animals. The SNP 775C>T polymorphism revealed three amplified restriction fragments of 31 bp, 77 bp and 108 bp, forming three genotypes <i>CC</i> (31 bp, 77 bp), <i>CT</i> (31 bp, 77 bp, 108 bp) and <i>TT</i> (108 bp). A group of randomly selected Black-and-White cows was characterized by a negligible percentage of homozygous genotypes <i>TT</i> (5.1%) and by a prevailing percentage of heterozygous <i>CT</i> (60.1%) and homozygous <i>CC</i> (34.8%). In contrast, the between breeds analysis revealed that cows involved in the programme of genetic diversity preservation had a high prevalence of homozygotes <i>CC</i> (Polish Red &minus; 55.9%, Polish White-Back &minus; 60.0%), and a low percentage of homozygotes <i>TT</i> (Polish Red &minus; 8.8%, Polish White-Back &minus; 5.7%) in comparison with the Black-and-White cattle population. The degree of homozygosity in groups of Polish White-Back cows (65.7%) and Polish Red cows (64.7%) was remarkably higher than that of the Black-and-White cows (39.9%).

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