Development of Specialized Food Products for Nutrition of Sportsmen

Gavrilova, N.B.; Chernopolskaya, N.L.; Rebezov, Мaksim; Schetinina, Elena; Suyazova, Irina; Safronov, S. L.; Ivanova, V. M.; Sultanova, Ekaterina Alexandrovna

doi:10.31838/jcr.07.04.43

Cited by 45 publications

(9 citation statements)

References 5 publications

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“…Particular attention is paid to the development of dairy farming, since the main quantity of a valuable food product and raw material for the dairy industry, milk, is obtained from cattle, more than 99 % of the total production. An increase in the productivity of cows is inseparably associated with an improvement in the quality of milk [8][9][10][11][12][13][14][15][16][17][18]. The main livestock of dairy cattle belongs to the domestic Black Pied breed, which has separate offsprings, differing in economic and biological characteristics.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the growth of replacement heifers from different seed bulls

et al. 2021

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In the Sverdlovsk region Holsteinized Black Pied cattle of the Ural type are bred which are represented by large, highly productive animals with a high genetic potential for productivity. Great importance is attached to the rearing replacement calves. The aim of the study was to study the dynamics of the live weight of replacement heifers from different seed bulls during rearing and its dependency on the age of the first insemination. The highest average daily weight gains were in the dairy period of heifers development, they ranged from 989 g for the daughters of the bull Thunderline to 1054 g for their peers from the bull Maximum. There were also high average daily gains during this period when rearing heifers from the bull Renigend. In the second period of rearing from 6 to 10 months of age there was a decrease in the average daily weight gain in all groups. Heifers from different seed bulls reach the required live weight for the first insemination at different ages. Maximum’s daughters, which had the weight of 399.4 kg at the age of 12.9 months. reached the required live weight most quickly. Their peers from other seed bulls reached the aforementioned live weight only at the age of 13.7 months.

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Section: Introductionmentioning

confidence: 99%

Evaluating the growth of replacement heifers from different seed bulls

et al. 2021

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“…Particular attention is paid to the development of dairy farming, since the main quantity of a valuable food product and raw material for the dairy industry, milk, is obtained from cattle, more than 99 % of the total production. An increase in the productivity of cows is inseparably associated with an improvement in the quality of milk [8][9][10][11][12][13][14][15][16][17][18]. The main livestock of dairy cattle belongs to the Russian Black Pied breed, which has separate offsprings, differing in economic and biological characteristics.…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of russian black pied and holstein cattle breeds of foreign breeding

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Tokoreva

et al. 2021

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A related Holstein breed has recently been used to improve domestic dairy cattle and create highly productive herds by purchasing semen from breeding bulls, as well as a large number of heifers and calves of foreign breeding. The purpose of the work is a comparative assessment of the productive qualities of Black Pied and Holstein cows of foreign breeding. Purebred Holstein cows differ from animals of Black Pied breed in milk yield per lactation by 1064 kg or 15.2% (P≤0.01, in favor of Holstein cows). In terms of quality indicators of milk, that are the content of fat and protein in milk, the superiority remained with Black Pied cows. The difference was significant at P≤0.05 for fat content in milk and at P≤0.001 for protein content. Both groups of cows exceeded the breed standard for milk yield per lactation, mass fraction of fat and mass fraction of protein in milk. The milk of the Russian Black Pied cattle contains more essential amino acids. The milk of cows of both breeds can be considered complete, since the amount of limited amino acids in the milk of purebred Holstein cows of foreign breeding is over 95% of their content in the ideal protein.

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“…At the same time, special attention is paid to the dairy cattle breeding development, since the main amount of more than 97% of the total production of a valuable food product and raw material for the dairy industry -milk, is obtained from cattle. Increasing cow productivity is inseparably associated with milk quality improvement [7][8][9][10][11][12][13][14][15][16]. The main livestock of dairy cattle is currently represented by the Russian Black Pied cattle and related breeds, including the Holstein breed having Dutch cattle roots.…”

Section: Introductionmentioning

confidence: 99%

The interrelation of the Russian Black Pied breed productive qualities of the Ural type depending on live weight

et al. 2021

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Holsteinized Russian Black Pied cattle of the Ural type are bred in the Sverdlovsk region, which is represented by large, highly productive animals with a high genetic potential for productivity. The purpose of the work was to study the effect of first heifers’ live weight on their productivity and the interrelation between milk yield and milk quality indicators. It was found that there was a positive tendency for an increase in milk yield with an increase in the cows’ live weight from less than 550 kg to 624 kg. The most significant increase in milk yield in cows was in the range from 574 to 599 kg. The difference in milk yield between these groups was 692 kg or 8.1% in favor of animals with live weight of 575-599 kg. An increase in cows’ live weight over 625 kg leads to a decrease in milk yield, which amounted to 2.3%. Changes in correlation are observed from a negative average value in cows with a live weight of less than 550 kg to a positive average value in cows with a live weight of more than 625 kg. In first heifers with live weight from 575 to 599 kg, a very low positive interrelation between live weight and milk yield per lactation was recorded (0.04).

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Development of Specialized Food Products for Nutrition of Sportsmen

Cited by 45 publications

References 5 publications

Evaluating the growth of replacement heifers from different seed bulls

Evaluating the growth of replacement heifers from different seed bulls

Comparative evaluation of russian black pied and holstein cattle breeds of foreign breeding

The interrelation of the Russian Black Pied breed productive qualities of the Ural type depending on live weight

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