PHENOTYPIC FEATURES OF JERSEY CATTLE IN THE PROCESS OF ADAPTATION TO THE CONDITIONS OF THE OMSK REGION

I P IVANOVA; E N YURCHENKO

doi:10.48136/2222-0364_2023_1_99

UDC

636.2.034

PHENOTYPIC FEATURES OF JERSEY CATTLE IN THE PROCESS OF ADAPTATION TO THE CONDITIONS OF THE OMSK REGION

Published in Vestnik of Omsk SAU · Pages 99–105 · Rubric: VETERINARY AND ZOOTECHNY

DOI: https://doi.org/10.48136/2222-0364_2023_1_99 · EDN: VQTFOS

Received: 06.03.2023 Accepted: 15.03.2023 Published: 25.03.2023

Authors

I P IVANOVA

E N YURCHENKO

I P IVANOVA

Omsk State Agrarian University named after P.A. Stolypin

E N YURCHENKO

Omsk State Agrarian University named after P.A. Stolypin

ABSTRACT

The Jersey breed of cattle is distinguished by a high content of milk fat and protein compared to the breeds traditionally bred in the Omsk region. The import of Jersey cattle is accompanied by changes in productive and adaptive features. Therefore, the study of the phenotypic features of imported Jersey cattle, manifested in the process of adaptation to the conditions of the Omsk region, is relevant. The purpose of the research is to study the phenotypic indicators of productivity and metabolic features of imported Jersey cows in the conditions of the Omsk region. The object of research is a herd of Jersey cattle, consisting entirely of imported Danish livestock. The share of breeding stock in the herd is 43.4%. In the herd 96.4% of cows are of the first lactation, and 3.6% are the cows of the second lactation. The milk yield of cows was 5736 kg, with a fat and protein content in milk of 5.92% and 4.02%, respectively, which meet the minimum requirements of the breed standard. All animals in the herd are typical in appearance. The variation coefficients are from 6.9 to 12.5%. In terms of every 100 cows in this farm, an average of 83 calves were delivered, which characterizes the level of reproduction of the herd as good. In heifers, the total protein content in the blood was 6.95 g/%, which is 3.59% less than the lower limit of the norm. When transferring these animals to a group of first-calf heifers, the total protein content in the blood decreased to 6.78 g/%, which is 6.19% below the norm. In imported heifers, ASAT exceeds the norm by 8.45%. Subsequently, the activity of ASAT and ALAT in the blood did not exceed the permissible limits of the norm. Thus, imported Jersey cattle have successfully adapted to the climate of the Omsk region, as well as to the industrial technology of the enterprise.

KEYWORDS

jersey breed, adaptation, milk productivity, milk yield, exterior

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Editor-in-chief

Oksana Shumakova

responsible secretary

Elena Rodomazova

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GOST

IVANOVA I. P., YURCHENKO E. N. PHENOTYPIC FEATURES OF JERSEY CATTLE IN THE PROCESS OF ADAPTATION TO THE CONDITIONS OF THE OMSK REGION // . 2023. pp. 99-105. DOI: https://doi.org/10.48136/2222-0364_2023_1_99. EDN: VQTFOS. (Date of access 20.08.2026).

MLA

I P IVANOVA, YURCHENKO E. N.. "PHENOTYPIC FEATURES OF JERSEY CATTLE IN THE PROCESS OF ADAPTATION TO THE CONDITIONS OF THE OMSK REGION." (2023): 99-105. DOI: https://doi.org/10.48136/2222-0364_2023_1_99. EDN: VQTFOS.

APA

IVANOVA I. P., YURCHENKO E. N. (2023). PHENOTYPIC FEATURES OF JERSEY CATTLE IN THE PROCESS OF ADAPTATION TO THE CONDITIONS OF THE OMSK REGION. , 99-105. https://doi.org/10.48136/2222-0364_2023_1_99 EDN: VQTFOS.

Chicago

I P IVANOVA, YURCHENKO E. N.. "PHENOTYPIC FEATURES OF JERSEY CATTLE IN THE PROCESS OF ADAPTATION TO THE CONDITIONS OF THE OMSK REGION." , no. (2023): 99-105. https://doi.org/10.48136/2222-0364_2023_1_99. EDN: VQTFOS.

WIKI

{{cite journal | author = IVANOVA I. P., YURCHENKO E. N. | title = PHENOTYPIC FEATURES OF JERSEY CATTLE IN THE PROCESS OF ADAPTATION TO THE CONDITIONS OF THE OMSK REGION | journal = | year = 2023 | pages = 99-105 | doi = 10.48136/2222-0364_2023_1_99 }} EDN: VQTFOS

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