Biometric Characteristics of Live Weight in Reindeer Populations of the Eastern Arctic and Subarctic
https://doi.org/10.31043/2410-2733-2023-3-39-46
Abstract
Purpose: the study of biometric data on live weight and their significance for artificial selection in the population of the northern deer (Rangifertarandus L.) ..
Materials and methods. Information was used from annual reports of reindeer herding of the North of the Far East. The methods of variation statistics that are generally accepted in zootechnical research were applied. Extreme (LIM) and average values (M) of the sign, trust boundaries of the general average (M ± t ∙ m), the average square deviation (σ), the coefficient of variation (CV), the boundaries of the extreme class variation (M ± 2σ) are determined. Associations of a live mass of sexual age groups in the population of the northern deer were established by calculating the correlation coefficients (R) and rectilinear regression (B).
Results. The consolidated correlation coefficient (RSV), reflecting the level of direct linear connection of the live weight of calves with a mass of uterus and manufacturers, was ≈ 0.7, which relates to the degree of close dependence. Using the regression equation (y = a+bx) calculated the predicted average size of the live weight of young animals in the average live weight of the importance. The data allow you to establish the threshold of selection of tribal animals in order to obtain offspring with a given value of the sign. In the study, the impact on the live mass of the season, year, range, and farms is leveled. It was established that throughout the generations a living mass is a stable phenotypic sign. Biometric data on live weight, as a quantitative attitude, indirectly reflect the state and movement of group genetic information in the populations of deer of the Far North-East of Russia.
Keywords
northern deer,
population,
sexual age group,
live mass,
biometric data,
correlation,
regression,
selection
About the Authors
G. Bryzgalov
Magadan Research Institute of Agriculture
Russian Federation
Russian Federation
685000, Magadan, st. Proletarskaya, 17
L. Ignatovich
Magadan Research Institute of Agriculture
Russian Federation
Russian Federation
685000, Magadan, st. Proletarskaya, 17
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Review
For citations:
Bryzgalov G., Ignatovich L. Biometric Characteristics of Live Weight in Reindeer Populations of the Eastern Arctic and Subarctic. Genetics and breeding of animals. 2023;(3):39-46. (In Russ.) https://doi.org/10.31043/2410-2733-2023-3-39-46
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